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SEE:
Dunic, J.C. and Anderson, S.C. 2025. Assessing the quality of groundfish population indices derived from the Small-mesh Multi-species Bottom Trawl Survey. Can. Tech. Rep. Fish. Aquat. Sci. 3667: v + 40 p. https://doi.org/10.60825/rjyz-8w29
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Abundance indices and spatial distribution patterns of commercial and non-commercial crustaceans and other groundfish.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"6ae5ad4f-2a01-43bd-9fb4-cc9c7f38f105","url":"http://ipt.vliz.be/obiscanada/rss.do","website":"http://ipt.vliz.be/obiscanada","active":true},"institutes":[{"name":"Gulf Region, Fisheries and Oceans Canada","oceanexpert_id":6185,"oceanexpert_parent_id":19196},{"name":"Pacific Biological Station, Fisheries and Oceans Canada","oceanexpert_id":14254,"oceanexpert_parent_id":19196}],"contacts":[{"role":null,"type":"creator","givenname":"Natalie","surname":"Asselin","organization":"Fisheries and Oceans Canada","position":"Biologist","email":"Natalie.Asselin@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":6185,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Natalie","surname":"Asselin","organization":"Fisheries and Oceans Canada","position":"Biologist","email":"Natalie.Asselin@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":6185,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Henry","surname":"Ye","organization":"Fisheries and Oceans Canada","position":"OBIS Technician","email":"henry.ye@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":14254,"type_display":"Metadata Provider"},{"role":"owner","type":"associatedParty","givenname":"Natalie","surname":"Asselin","organization":"Fisheries and Oceans Canada","position":"Biologist","email":"Natalie.Asselin@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":6185,"type_display":"Owner"},{"role":"owner","type":"personnel","givenname":"Natalie","surname":"Asselin","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Owner"}],"nodes":[{"id":"7dfb2d90-9317-434d-8d4e-64adf324579a","name":"OBIS Canada"}],"keywords":[{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"emof","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"trawl","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"}],"downloads":[{"year":2026,"downloads":6091,"records":4372284},{"year":2025,"downloads":7246,"records":55705858},{"year":2024,"downloads":7288,"records":76492857},{"year":2023,"downloads":5876,"records":58684613},{"year":2022,"downloads":6238,"records":42423836},{"year":2021,"downloads":5560,"records":35673866}],"tags":null,"disable_extensions":null,"records":23678},{"id":"50713b48-1ebc-4ae3-97b8-543777e1e815","url":"https://ipt.vliz.be/eurobis/resource?r=belgian_recreational_marine_fisheries","archive":"https://ipt.vliz.be/eurobis/archive.do?r=belgian_recreational_marine_fisheries","published":"2025-09-17T09:13:19.000Z","created":"2023-06-01T21:28:17.545Z","updated":"2025-09-25T15:22:48.280Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":6465,"absence":0,"dropped":0,"Occurrence":22151,"DNADerivedData":0,"MeasurementOrFact":80518},"extent":"POLYGON((2.5801 51.1155,3.9 51.1155,3.9 51.56237,2.5801 51.56237,2.5801 51.1155))","title":"Belgian recreational fisheries monitoring","citation":"VLIZ & ILVO (2022). 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[Programme funding 2016-2021: FPS Public Health, Food Chain Safety and Environment - Marine Environment Division; National Data Gathering Programme; Province of West Flanders; VLIZ | Programme funding 2022: VLIZ; ILVO]
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POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Brad","surname":"Reynolds","organization":"Prince William Sound Science Center","position":null,"email":"breynolds@pwssc.org","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Robichaud","organization":"LGL Limited","position":null,"email":"drobichaud@lgl.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Scott","surname":"Hinch","organization":"University of British Columbia","position":null,"email":"scott.hinch@ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"David","surname":"Welch","organization":"Kintama Research Services Ltd","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":434,"records":24820052},{"year":2025,"downloads":2718,"records":327991336},{"year":2024,"downloads":3450,"records":446899677},{"year":2023,"downloads":2834,"records":119138578},{"year":2022,"downloads":2014,"records":18350091},{"year":2021,"downloads":217,"records":1976765}],"tags":null,"disable_extensions":null,"records":5874},{"id":"98400b39-b5f9-4b7a-833c-9e62dfcd1c1e","url":"http://ipt.iobis.org/obiscanada/resource?r=eulachon_synoptic_surveys","archive":"https://ipt.iobis.org/obiscanada/archive.do?r=eulachon_synoptic_surveys","published":"2022-03-23T15:58:36.000Z","created":"2021-02-27T13:43:19.863Z","updated":"2025-11-10T22:17:08.092Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":886,"absence":0,"dropped":17,"Occurrence":19797,"DNADerivedData":0,"MeasurementOrFact":40528},"extent":"POLYGON((-131.0726 48.274133,-123.039233 48.274133,-123.039233 54.702683,-131.0726 54.702683,-131.0726 48.274133))","title":"Eulachon migration bottom trawl surveys","citation":"Hodes, V (2021): Eulachon migration bottom trawl surveys. v1. Fisheries and Oceans Canada. Dataset/Samplingevent. http://ipt.iobis.org/obiscanada/resource?r=eulachon_synoptic_surveys&v=1.0","citation_id":null,"abstract":"Catch, effort, location (latitude and longitude), and associated biological data from the Eulachon Migration Study Bottom Trawl surveys on the coast of British Columbia.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"6ae5ad4f-2a01-43bd-9fb4-cc9c7f38f105","url":"http://ipt.vliz.be/obiscanada/rss.do","website":"http://ipt.vliz.be/obiscanada","active":true},"institutes":[{"name":"Pacific Biological Station, Fisheries and Oceans Canada","oceanexpert_id":14254,"oceanexpert_parent_id":19196},{"name":"Fisheries and Oceans Canada","oceanexpert_id":19196,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Melissa","surname":"Nottingham","organization":"Fisheries and Oceans Canada","position":"OBIS Data Biologist","email":"melissa.nottingham@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":19196,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Vanessa","surname":"Hodes","organization":"Fisheries and Oceans Canada","position":"Biologist","email":"Vanessa.Hodes@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":14254,"type_display":"Contact"},{"role":null,"type":"contact","givenname":"Lindsay","surname":"Dealy","organization":"Fisheries and Oceans Canada","position":"Biologist","email":"lindsay.dealy@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":14254,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Vanessa","surname":"Hodes","organization":"Fisheries and Oceans Canada","position":"Biologist","email":"Vanessa.Hodes@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":14254,"type_display":"Metadata Provider"},{"role":null,"type":"associatedParty","givenname":null,"surname":"OBIS Canada node manager","organization":"Fisheries and Oceans Canada","position":"OBIS Canada node manager","email":"OBISCanada@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":14254,"type_display":"OBIS Canada node manager"},{"role":"principalInvestigator","type":"personnel","givenname":"Vanessa","surname":"Hodes","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"principalInvestigator","type":"personnel","givenname":"Lindsay","surname":"Dealy","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"7dfb2d90-9317-434d-8d4e-64adf324579a","name":"OBIS Canada"}],"keywords":[{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Pacific Ocean","thesaurus":"DFO"},{"keyword":"North Pacific","thesaurus":"DFO"},{"keyword":"British Columbia","thesaurus":"DFO"},{"keyword":"Life History","thesaurus":"DFO"},{"keyword":"Bottom Trawl","thesaurus":"DFO"},{"keyword":"Eulachon","thesaurus":"DFO"},{"keyword":"Migration","thesaurus":"DFO"},{"keyword":"Diet","thesaurus":"DFO"},{"keyword":"Maturity","thesaurus":"DFO"},{"keyword":"Teeth","thesaurus":"DFO"},{"keyword":"National Rotational Survey Fund","thesaurus":"DFO"},{"keyword":"Marine biology","thesaurus":"DFO"},{"keyword":"Fisheries","thesaurus":"DFO"},{"keyword":"Fish","thesaurus":"DFO"},{"keyword":"Oceans","thesaurus":"DFO"},{"keyword":"Surveys","thesaurus":"DFO"},{"keyword":"Catch","thesaurus":"DFO"},{"keyword":"Distribution","thesaurus":"DFO"}],"downloads":[{"year":2026,"downloads":5917,"records":3482455},{"year":2025,"downloads":6819,"records":45597603},{"year":2024,"downloads":7529,"records":63549084},{"year":2023,"downloads":6116,"records":49156153},{"year":2022,"downloads":5879,"records":35246124},{"year":2021,"downloads":6611,"records":32173557}],"tags":null,"disable_extensions":null,"records":5320},{"id":"ec1dc821-fead-4448-b25f-f26651959f7c","url":"https://members.oceantrack.org/ipt/resource?r=otnubccanadapacificsockey","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnubccanadapacificsockey","published":"2025-11-06T22:27:46.000Z","created":"2019-02-20T15:53:05.000Z","updated":"2025-11-07T20:14:51.833Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":50482,"absence":0,"dropped":0,"Occurrence":46177,"DNADerivedData":0,"MeasurementOrFact":12390},"extent":"POLYGON((-128.1957 48.23813,-121.81975 48.23813,-121.81975 52.0666,-128.1957 52.0666,-128.1957 48.23813))","title":"OTN Canada Pacific Sockeye Salmon Tagging Project 2","citation":"Clark, T., Jeffries, K., Lotto, A., Hinch, S., Farrell, T., Cooke, S., Patterson, D., Welch, D., Riddell, B. 2010. Ocean Tracking Network Canada Pacific Sockeye Salmon Tagging Project 2 Metadata and Data Set.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/bjkpp5","abstract":"This is the OBIS extraction of the Ocean Tracking Network and University of British Columbia (UBC) OTN Canada Pacific Sockeye Salmon Tagging Project 2, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.PSS2).\nAbstract:The objective is to assess the speed of outmigration, and location and level of mortality in freshwater and coastal areas, for individual smolts from Chilko Lake, a population situated 750 km inland from the ocean and is the highest elevation rearing lake for sockeye salmon in Canada. In spring 2010, 200 2-yr old juveniles were captured as they initiated their smolt outmigration and surgically implanted with acoustic transmitters. Sentinel acoustic receivers situated near the release site and in the lower Fraser River, and acoustic curtains associated with POST were used to determine travel rates and locales and levels of mortality. Preliminary results indicate that smolts travelled at ~ 1-2 km/h during the initial sections of their migration through turbulent and clear water environments, and final sections, which were turbid and tidally influenced, of the freshwater migration. But they travelled ~ 5 km/h through the expansive fast flowing sections in between. Diel patterns were evident. On average fish reached the ocean in ~ 8 days with a range of 5-17 days among fish. Survival to reach the estuary is estimated at 20-30% and 15-20% to reach the first POST acoustic curtain situated in Northern Strait of Georgia about 180 km from the Fraser River mouth. We await the downloads of the other POST acoustic curtains to assess survival beyond this first acoustic receiver curtain. Of concern is that at present, POST does not have the funding available to download all of its Canadian curtains (e.g. the Queen Charlotte Strait line) and it is unclear when or if this will happen.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Dave","surname":"Patterson","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"pattersond@pac.dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Scott","surname":"Hinch","organization":"University of British Columbia","position":null,"email":"scott.hinch@ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Tony","surname":"Farrell","organization":"University of British Columbia","position":null,"email":"farrellt@interchange.ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Steven","surname":"Cooke","organization":"Carleton University","position":null,"email":"steven.cooke@carleton.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Tim","surname":"Clark","organization":"University of British Columbia","position":null,"email":"timothy.clark.mail@gmail.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Brian","surname":"Riddell","organization":"Pacific Salmon Federation","position":null,"email":"briddell@psf.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Andrew","surname":"Lotto","organization":"University of British Columbia","position":null,"email":"andrew.lotto@ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Ken","surname":"Jeffries","organization":"University of British Columbia","position":null,"email":"kjeffrie@interchange.ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Glenn","surname":"Crossin","organization":"Dalhousie University","position":null,"email":"gtc@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Anna","surname":"Kagley","organization":"National Oceanic and Atmospheric Administration","position":null,"email":"anna.kagley@noaa.gov","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Robichaud","organization":"LGL Limited","position":null,"email":"drobichaud@lgl.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Kelly","surname":"Andrews","organization":"National Oceanic and Atmospheric Administration","position":null,"email":"kelly.andrews@noaa.gov","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Dave","surname":"Patterson","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"principalInvestigator","type":"personnel","givenname":"Scott","surname":"Hinch","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"principalInvestigator","type":"personnel","givenname":"Tony","surname":"Farrell","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"principalInvestigator","type":"personnel","givenname":"Steven","surname":"Cooke","organization":"Carleton University","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":299,"records":7776521},{"year":2025,"downloads":2507,"records":108775185},{"year":2024,"downloads":3277,"records":149753780},{"year":2023,"downloads":2689,"records":39695742},{"year":2022,"downloads":1878,"records":5980101},{"year":2021,"downloads":175,"records":564986}],"tags":null,"disable_extensions":null,"records":3373},{"id":"09cdf873-9da4-4c08-89ed-56ceff622aac","url":"https://members.oceantrack.org/ipt/resource?r=otnnoaa-swfscmacfarlaneta","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnnoaa-swfscmacfarlaneta","published":"2026-06-09T15:45:20.000Z","created":"2019-02-20T16:22:44.000Z","updated":"2026-06-09T15:57:31.177Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":4688,"absence":0,"dropped":0,"Occurrence":2415,"DNADerivedData":0,"MeasurementOrFact":4514},"extent":"POLYGON((-123.13503 38.0206,-121.507286 38.0206,-121.507286 40.3984,-123.13503 40.3984,-123.13503 38.0206))","title":"Macfarlane Tags","citation":"Macfarlane, Bruce 2006. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and Southwest Fisheries Science Center NOAA (NOAA-SWFSC) Macfarlane Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.MACFL).\n
Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"OTN","position":"Data Manager","email":"otndc@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Bruce","surname":"Macfarlane","organization":"Southwest Fisheries Science Center NOAA","position":null,"email":"bruce.macfarlane@noaa.gov","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Arnold","surname":"Ammann","organization":"National Oceanic and Atmospheric Administration","position":null,"email":"arnold.ammann@gmail.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Bruce","surname":"Macfarlane","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":192,"records":424499},{"year":2025,"downloads":2397,"records":5683423},{"year":2024,"downloads":3213,"records":7801076},{"year":2023,"downloads":2483,"records":5749706},{"year":2022,"downloads":1772,"records":3996343},{"year":2021,"downloads":216,"records":487512}],"tags":null,"disable_extensions":null,"records":2257},{"id":"92b694e1-1534-4d37-8e11-3c2c6d2d5edc","url":"https://www.marine.csiro.au/ipt/resource?r=csiro_ss200503_infauna","archive":"https://www.marine.csiro.au/ipt/archive.do?r=csiro_ss200503_infauna","published":"2023-06-29T11:02:00.000Z","created":"2022-11-07T00:52:46.190Z","updated":"2025-11-10T11:17:00.438Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":250,"absence":0,"dropped":198,"Occurrence":5257,"DNADerivedData":0,"MeasurementOrFact":1551},"extent":"POLYGON((136.7488 -16.16068,140.36312 -16.16068,140.36312 -12.95953,136.7488 -12.95953,136.7488 -16.16068))","title":"Southern Surveyor Voyage SS 03/2005 Box Core Infauna Samples, Gulf of Carpentaria, Australia (2005)","citation":"Bustamante R (2023): Southern Surveyor Voyage SS 03/2005 Box Core Infauna Samples, Gulf of Carpentaria, Australia (2005). v1.1. CSIRO National Collections and Marine Infrastructure (NCMI) Information and Data Centre (IDC). Dataset/Samplingevent. https://www.marine.csiro.au/ipt/resource?r=csiro_ss200503_infauna&v=1.1","citation_id":null,"abstract":"The dataset comprises catch records of invertebrates and fish from epibenthic sled deployments completed on research voyage SS 03/2005. The survey design was a natural experiment (i.e. control-impact, but not before-after) to test the long-term, broadscale effects of prawn fishing on non-target species and habitats. Deployments were stratified by fishing intensity (three strata) and day/night. The survey was repeated in three regions: (a) north of Groote Eylandt, (b) north-east of the Vanderlins, and (c) north of Mornington Island. The number of deployments completed as part of the natural experiment was 124. Two additional deployments were completed for other reasons.\nSurvey details (voyage track, deployments, reports, other datasets) are at https://www.marine.csiro.au/data/trawler/survey_details.cfm?survey=SS200503","intellectualrights":"This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License","feed":{"id":"42683bd2-2415-405b-8ddf-f7e9ca0d339e","url":"https://www.marine.csiro.au/ipt/rss.do","website":"https://www.marine.csiro.au/ipt","active":true},"institutes":[{"name":"CSIRO Oceans and Atmospheric Research, Brisbane","oceanexpert_id":5605,"oceanexpert_parent_id":19301},{"name":"CSIRO National Collections and Marine Infrastructure","oceanexpert_id":20942,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Rodrigo","surname":"Bustamante","organization":"CSIRO Oceans and Atmosphere","position":null,"email":"Rodrigo.Bustamante@csiro.au","url":null,"organization_oceanexpert_id":5605,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Rodrigo","surname":"Bustamante","organization":"CSIRO Oceans and Atmosphere","position":null,"email":"Rodrigo.Bustamante@csiro.au","url":null,"organization_oceanexpert_id":5605,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Rodrigo","surname":"Bustamante","organization":"CSIRO Oceans and Atmosphere","position":null,"email":"Rodrigo.Bustamante@csiro.au","url":null,"organization_oceanexpert_id":5605,"type_display":"Metadata Provider"},{"role":"publisher","type":"associatedParty","givenname":null,"surname":"OBIS Australia Node manager","organization":"CSIRO National Collections and Marine Infrastructure Data Centre","position":"OBIS Australia Data Manager","email":"obisau@csiro.au","url":"http://www.obis.org.au","organization_oceanexpert_id":20942,"type_display":"Publisher"}],"nodes":[{"id":"2a57cd59-6799-4579-955e-27c9af97aea4","name":"OBIS Australia"}],"keywords":[{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":3528,"records":1018190},{"year":2025,"downloads":3790,"records":11490853},{"year":2024,"downloads":5135,"records":15958215},{"year":2023,"downloads":3474,"records":12421077},{"year":2022,"downloads":510,"records":1978496}],"tags":null,"disable_extensions":null,"records":1255},{"id":"a390823a-2a59-4680-9f42-c34af84eeae8","url":"https://members.oceantrack.org/ipt/resource?r=otndfo-sabspassamaquoddyb","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndfo-sabspassamaquoddyb","published":"2026-06-15T16:43:53.000Z","created":"2022-05-09T14:04:03.873Z","updated":"2026-06-15T20:45:14.071Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":1326635,"absence":0,"dropped":0,"Occurrence":1323475,"DNADerivedData":0,"MeasurementOrFact":5865},"extent":"POLYGON((-70.42767 42.84458,-59.03361 42.84458,-59.03361 47.03728,-70.42767 47.03728,-70.42767 42.84458))","title":"Quoddy Region Pelagics Telemetry","citation":"Trudel, M., Wilson, B., Black, M. 2023. Assessing bay-scale impacts of aquaculture operations on the distribution and abundance of pelagic fishes and large predators.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and Department of Fisheries and Oceans Canada (DFO) Quoddy Region Pelagics Telemetry, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=PBSM).\n
Abstract:The project (Quoddy Region Pelagics Telemetry) will support the assessment of the effects of aquaculture on the distribution and abundance of pelagic fishes (salmon, mackerel, herring) and large predators (shark, marine mammals) in Passamaquoddy Bay and the Bay of Fundy, an area of intense finfish culture. An acoustic receivers network is placed yearly (from April to December) across various passageways, locations of project-specific interest, and at aquaculture sites in the region. Tagged pelagic species will be tracked through the network to provide information on migration routes, movement speed, survival rates and suspected predators, and determine interaction and residence at aquaculture sites. The network was utilized for monitoring the passage of: hatchery-reared wild salmon (n=340) released in the Magaguadavic River in 2018, 2019 and 2021, wild alewives (n=30) from the St. Croix River in 2021, and farmed Atlantic salmon released in the wild (n=99) in 2021. The receiver network has more recently supported adjacent projects on the use of the region by white shark and porbeagle as well as the residence of mackerel, herring, and sculpin at farm sites. The receivers additionally support other researchers with detection of striped bass, Inner Bay of Fundy Atlantic salmon, sturgeon, and many other species. Placement of the network will continue into 2025 inclusive with the longer-term goal to eventually deploy an array covering the entrance to the Bay of Fundy. ##### Le projet (Quoddy Region Pelagics Telemetry) soutiendra l'évaluation des effets de l'aquaculture sur la distribution et l'abondance des poissons pélagiques (saumon, maquereau, hareng) et des grands prédateurs (requin, mammifères marins) dans l'extérieur de la baie de Passamaquoddy et la baie de Fundy, une zone de pisciculture intense. Un réseau de récepteurs acoustiques est placé chaque année (d'avril à décembre) dans divers passages, emplacements d'intérêt spécifique au projet et sur des sites d'aquaculture de la région. Les espèces pélagiques marquées seront suivies à travers le réseau pour fournir des informations sur les voies de migration, la vitesse de déplacement, les taux de survie et les prédateurs présumés, et déterminer l'interaction et la résidence aux sites d'aquaculture. Le réseau a été utilisé pour déterminer le passage de : saumons d'écloserie (n = 340) relâchés dans la rivière Magaguadavic en 2018, 2019 et 2021, gaspareaux sauvages (n = 30) de la rivière Sainte-Croix en 2021 et saumons atlantiques d'aquaculture relâchés en milieu naturel (n=99) en 2021. Plus récemment, le réseau receveur a soutenu des projets adjacents sur l'utilisation de la région par le requin blanc et la maraîche ainsi que la résidence du maquereau, du hareng et du chabot sur les sites d'élevage. Les récepteurs aident également d'autres chercheurs à détecter le bar rayé, le saumon de l'intérieur de la baie de Fundy, l'esturgeon et de nombreuses autres espèces. Le placement du réseau se poursuivra jusqu'en 2025 inclusivement avec l'objectif à plus long terme de déployer un réseau couvrant l'embouchure de la baie de Fundy.
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Ryan","surname":"Hill","organization":"University of New Brunswick - Fredericton","position":null,"email":"christopher.hill@unb.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Tyler","surname":"Lynn","organization":"Maliseet Nation Conservation Council","position":null,"email":"tyler.lynn@mncc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Hardie","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"david.hardie@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Jason","surname":"Daniels","organization":"Atlantic Salmon Federation","position":null,"email":"jdaniels@asf.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Susan","surname":"Farquharson","organization":"Atlantic Canada Fish Farmers Association","position":null,"email":"s.farquharson@atlanticfishfarmers.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Jonathan","surname":"Carr","organization":"Atlantic Salmon Federation","position":null,"email":"jcarr@asf.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Glenn","surname":"Crossin","organization":"Dalhousie University","position":null,"email":"glenn.crossin@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content 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University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Ryan","surname":"Stanley","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"ryan.stanley@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"William","surname":"DeVoe","organization":"Maine Department of Marine Resources","position":null,"email":"william.devoe@maine.gov","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Susan","surname":"Heaslip","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"susan.heaslip@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content 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CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":870,"records":269431518},{"year":2025,"downloads":3257,"records":3124080547},{"year":2024,"downloads":3502,"records":1790793162},{"year":2023,"downloads":2540,"records":75892345},{"year":2022,"downloads":1208,"records":268840}],"tags":null,"disable_extensions":null,"records":948},{"id":"4b0fd78e-c074-4b7b-a716-adf7e3917776","url":"https://members.oceantrack.org/ipt/resource?r=otndfo-nafcdfonenewfoundl","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndfo-nafcdfonenewfoundl","published":"2023-09-23T02:51:54.000Z","created":"2019-02-20T16:21:00.000Z","updated":"2025-11-07T21:38:06.162Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":350228,"absence":0,"dropped":0,"Occurrence":348012,"DNADerivedData":0,"MeasurementOrFact":2233},"extent":"POLYGON((-124.137016666667 -32.02095,115.22015 -32.02095,115.22015 52.4839,-124.137016666667 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DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/pomdkm","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Department of Fisheries and Oceans Canada (DFO) DFO NE Newfoundland Acoustic Array and Atlantic Cod Tagging, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=JBC).\nAbstract:An extensive network comprising approximately 30 arrays of acoustic receivers (Vemco VR2/VR2W) has been deployed in nearshore waters off the NE coast of Newfoundland; the receivers are in the water throughout the year to provide continuous monitoring and data are uploaded once/twice per year depending on accessibility. Several hundred cod equipped with coded V16 and V13 pingers (including some with depth/temperature sensor tags) have been released inshore and offshore over the past 5 yrs along with >35,000 conventionally (Floy) tagged cod. The primary purpose of the research is to investigate cod stock structure and movement patterns and estimate exploitation rates in support of assessments of the status of the cod stock in NAFO Divs 2J3KL. This is a SPERA project dataset.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data 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Peter","surname":"Klimley","organization":"University of California, Davis","position":null,"email":"apklimley@ucdavis.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Andrew","surname":"Rypel","organization":"University of California, Davis","position":null,"email":"rypel@ucdavis.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Nann","surname":"Fangue","organization":"University of California, Davis","position":null,"email":"nafangue@ucdavis.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"John","surname":"Brattey","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":472,"records":107964127},{"year":2025,"downloads":2756,"records":904809606},{"year":2024,"downloads":3450,"records":1166563147},{"year":2023,"downloads":2607,"records":259884379},{"year":2022,"downloads":1960,"records":1590098},{"year":2021,"downloads":229,"records":188330}],"tags":null,"disable_extensions":null,"records":826},{"id":"bdbfda38-c0fd-483c-85eb-4202baff1e52","url":"http://ipt.iobis.org/obiscanada/resource?r=trawl-catch-and-species-abundance-from-the-2020-gulf-of-alaska-international-year-of-the-salmon-expedition","archive":"https://ipt.iobis.org/obiscanada/archive.do?r=trawl-catch-and-species-abundance-from-the-2020-gulf-of-alaska-international-year-of-the-salmon-expedition","published":"2022-12-16T18:06:37.000Z","created":"2021-12-08T20:05:41.824Z","updated":"2025-11-08T02:01:51.680Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":5458,"absence":0,"dropped":245,"Occurrence":5528,"DNADerivedData":0,"MeasurementOrFact":6920},"extent":"POLYGON((-147.5000038518 46.3783379576263,-125.414188537838 46.3783379576263,-125.414188537838 54.5483499242334,-147.5000038518 54.5483499242334,-147.5000038518 46.3783379576263))","title":"Trawl Catch and Species Abundance from the 2020 Gulf of Alaska International Year of the Salmon Expedition","citation":"Neville, C., Somov, A., Esenkulova, S., & LaForge, R. (2022). Trawl Catch and Species Abundance data from the 2020 Gulf of Alaska International Year of the Salmon Expedition [Data set]. North Pacific Anadromous Fish Commission. https://doi.org/10.21966/4J6T-GB64","citation_id":"https://doi.org/10.21966/4J6T-GB64","abstract":"Fish species abundance data and species-specific length and weight data was collected in the Gulf of Alaska using a midwater trawl net. These data were collected as part of the International Year of the Salmon (IYS) High Seas Expedition conducted in March and April 2020, to further improve the understanding of factors impacting salmon marine winter survival. Trawl sets were conducted using a research trawl net with a 3 mm codend mesh size. A total of 52 tows were conducted, and for each tow the total species-specific weight and catch numbers were recorded. This dataset only contains data on salmonids and larger bycatch species that have been identified to a species level and verified by the data provider. A total of 566 salmon were caught in 29 out of 52 trawl sets, including 234 Chum Salmon, 118 Coho Salmon, 51 Sockeye Salmon, 136 Pink Salmon, 26 Chinook Salmon and 1 Steelhead Trout. All salmon were identified to species level, fitted with a floy tag on the caudal peduncle (to identify the specimen) and measured for fork length, standard length and weight. Where possible, sex and maturation stage are recorded. Larger bycatch species are enumerated, and their length (fork, total, standard, mantle or bell diameter), wet weight, sex and maturation stage (where possible) is recorded.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"6ae5ad4f-2a01-43bd-9fb4-cc9c7f38f105","url":"http://ipt.vliz.be/obiscanada/rss.do","website":"http://ipt.vliz.be/obiscanada","active":true},"institutes":[{"name":"Fisheries and Oceans Canada","oceanexpert_id":19196,"oceanexpert_parent_id":null},{"name":"Hakai Institute","oceanexpert_id":20121,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Chrys","surname":"Neville","organization":"Fisheries and Oceans Canada","position":"Research Biologist","email":"chrys.neville@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":19196,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Aleksey","surname":"Somov","organization":"Russian Federal Fisheries Research Institute for Fisheries and Oceanography","position":"Fisheries Biologist","email":"aleksey.somov@tinro-center.ru","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Svetlana","surname":"Esenkulova","organization":"Pacific Salmon Foundation","position":"Biologist","email":"svesen@uvic.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Rebecca","surname":"LaForge","organization":"Fisheries and Oceans Canada","position":"Fisheries Technician","email":null,"url":null,"organization_oceanexpert_id":19196,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Chrys","surname":"Neville","organization":"Fisheries and Oceans Canada","position":"Research 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Technician","email":null,"url":null,"organization_oceanexpert_id":19196,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Chrys","surname":"Neville","organization":"Fisheries and Oceans Canada","position":"Research Biologist","email":"chrys.neville@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":19196,"type_display":"Metadata Provider"},{"role":null,"type":"metadataProvider","givenname":"Aleksey","surname":"Somov","organization":"Russian Federal Fisheries Research Institute for Fisheries and Oceanography","position":"Fisheries Biologist","email":"aleksey.somov@tinro-center.ru","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"distributor","type":"associatedParty","givenname":"Tim","surname":"van der Stap","organization":"Hakai Institute","position":"Research 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Distribution","thesaurus":"n/a"},{"keyword":"Salmon","thesaurus":"n/a"},{"keyword":"Oceans","thesaurus":"n/a"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":1741,"records":1009599},{"year":2025,"downloads":3661,"records":12230697},{"year":2024,"downloads":4395,"records":17044440},{"year":2023,"downloads":3668,"records":13167285},{"year":2022,"downloads":3317,"records":9459575},{"year":2021,"downloads":83,"records":369732}],"tags":null,"disable_extensions":null,"records":611},{"id":"42fbe736-2c09-45e3-a48c-5370c999f389","url":"https://www.dassh.ac.uk/ipt/resource?r=dasshdt00000002","archive":"https://www.dassh.ac.uk/ipt/archive.do?r=dasshdt00000002","published":"2019-10-16T09:59:28.000Z","created":"2023-10-20T13:14:34.920Z","updated":"2025-11-10T18:36:31.032Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":2072,"absence":4,"dropped":2,"Occurrence":2017,"DNADerivedData":0,"MeasurementOrFact":18301},"extent":"POLYGON((-16.866666666667 32.735413,15.071944 32.735413,15.071944 68.911606,-16.866666666667 68.911606,-16.866666666667 32.735413))","title":"1743-2010 National Marine Aquarium (NMA) United Kingdom Marine Fish Recording Scheme","citation":"National Marine Aquarium, Plymouth (2018): 1743-2010 National Marine Aquarium (NMA) United Kingdom Marine Fish Recording Scheme. v3.0. Marine Biological Association. Dataset/Samplingevent. https://doi.org/10.17031/2x2hau","citation_id":"https://doi.org/10.17031/2x2hau","abstract":"Records of rare fish sightings and catches submitted to the National Marine Aquarium, Plymouth.","intellectualrights":"This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC) 4.0 License","feed":{"id":"d5d261ce-9955-4c5d-a10b-64bb1d88a3dc","url":"https://www.dassh.ac.uk/ipt/rss.do","website":"https://www.dassh.ac.uk/ipt","active":true},"institutes":null,"contacts":[{"role":null,"type":"creator","givenname":null,"surname":null,"organization":"National Marine Aquarium, Plymouth","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":null,"surname":null,"organization":"Data Archive for Marine Species and Habitats (DASSH)","position":null,"email":"dassh.enquiries@MBA.ac.uk","url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":null,"surname":null,"organization":"Data Archive for Marine Species and Habitats (DASSH)","position":null,"email":"dassh.enquiries@MBA.ac.uk","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"user","type":"associatedParty","givenname":"Data","surname":"Team","organization":null,"position":null,"email":"data@mba.ac.uk","url":null,"organization_oceanexpert_id":null,"type_display":"User"}],"nodes":[{"id":"f92d5d7f-47a6-4605-9fd0-a8538dfde3fd","name":"OBIS UK"}],"keywords":[{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"}],"downloads":[{"year":2026,"downloads":14971,"records":411809},{"year":2025,"downloads":17593,"records":4697427},{"year":2024,"downloads":16663,"records":6533747},{"year":2023,"downloads":1478,"records":1006508}],"tags":null,"disable_extensions":null,"records":587},{"id":"ce28c897-d3e7-40d9-bf93-bd87c4aff63c","url":"https://members.oceantrack.org/ipt/resource?r=otndalnssouthernuplandsal","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndalnssouthernuplandsal","published":"2025-08-27T11:35:35.000Z","created":"2019-02-20T16:20:36.000Z","updated":"2025-09-16T11:16:37.944Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":370737,"absence":0,"dropped":80,"Occurrence":369953,"DNADerivedData":0,"MeasurementOrFact":2407},"extent":"POLYGON((9.34132 63.37402,14.5968 63.37402,14.5968 67.1721,9.34132 67.1721,9.34132 63.37402))","title":"NS Southern Upland Salmon Tagging","citation":"Halfyard, E.A. 2008. Early marine migration and survival of Atlantic Salmon smolts from Nova Scotia's Southern Upland.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/jsxvro","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Ocean Tracking Network (OTN) NS Southern Upland Salmon Tagging, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=WRS).\nAbstract:To investigate late riverine, estuarine and early marine migration and survival of wild Atlantic salmon smolts/post-smolts, we tagged 35 wild salmon smolts in each of 4 Nova Scotia Southern Upland rivers (Total of 140 smolts). The rivers where fish were tagged (and 64 receivers deployed) were; The LaHave River, The Gold River (Chester), The West River (Sheet Harbour) and The St. Mary's River. 2010 was the first year for all river tagging projects, with the exception of the West River, upon which it was year #3.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Eddie","surname":"Halfyard","organization":"Ocean Tracking Network","position":null,"email":"eahalfyard@hotmail.com","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Don","surname":"Bowen","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"don.bowen@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Jamie","surname":"Gibson","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"jamie.gibson@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Dave","surname":"Hebert","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"david.hebert@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Sara","surname":"Iverson","organization":"Dalhousie University","position":null,"email":"sara.iverson@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Eddie","surname":"Halfyard","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":342,"records":76580397},{"year":2025,"downloads":2547,"records":264540706},{"year":2024,"downloads":3245,"records":128743006},{"year":2023,"downloads":2531,"records":28672082},{"year":2022,"downloads":1863,"records":345955},{"year":2021,"downloads":196,"records":35788}],"tags":null,"disable_extensions":null,"records":478},{"id":"0820b10a-5710-4e90-b9ed-a2ad7c7ec742","url":"https://www.marine.csiro.au/ipt/resource?r=imos_atf_ad","archive":"https://www.marine.csiro.au/ipt/archive.do?r=imos_atf_ad","published":"2022-06-08T01:58:14.000Z","created":null,"updated":"2025-11-09T18:41:40.843Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":28626,"Occurrence":1546540,"DNADerivedData":0,"MeasurementOrFact":15060},"extent":"POLYGON((-146.59 -46.84,168.22 -46.84,168.22 20.15,-146.59 20.15,-146.59 -46.84))","title":"IMOS - Animal Tracking Facility - Acoustic Tracking - Quality Controlled Detections (2007 -2021)","citation":"Users of IMOS data are required to clearly acknowledge the source material by including the following statement:\n\n\"Australia’s Integrated Marine Observing System (IMOS) is enabled by the National Collaborative Research Infrastructure Strategy (NCRIS).\nIt is operated by a consortium of institutions as an unincorporated joint venture, with the University of Tasmania as Lead Agent.\"","citation_id":null,"abstract":"Over the last decade, the Integrated Marine Observing System’s Animal Tracking Facility (IMOS ATF) has established a permanent array of acoustic receivers around Australia to detect the movements of tagged marine animals in coastal waters. Simultaneously, IMOS ATF developed a centralised national database (https://animaltracking.aodn.org.au/) to encourage collaborative research across the user community and provide unprecedented opportunities to quantify individual behaviour across a broad range of taxa. Here we present the database and quality control procedures developed to collate 67 million valid detections from 1891 receiving stations. This dataset consists of detection data for 7800 tags deployed on 154 species (fish, sharks, rays, reptiles, and mammals), with distances traveled ranging from a few to thousands of kilometres. This dataset of acoustic detections constitutes a valuable resource facilitating meta-analysis of animal movement, distributions, and habitat use, and is important for relating species distribution shifts with environmental covariates.\nThis copy of the IMOS ATF data is of the valid detections downloaded via the IMOS Animal Tracking Portal at https://animaltracking.aodn.org.au/detection. This dataset has been summarized by reducing the detection records to the count of detections per animal per site per day (UTC). The DwC field organismId has been used to record the transmitter serial number. The initial deployment/release of the animal has also been added to the dataset via EMoF using an occurrenceId of the transmitter tag with a postfix of '-release'. Parameters include transmitter type, length and weight of the released animal.\nDownloads of the detection, deployments and receiver stations are from https://animaltracking.aodn.org.au/detection accessed in 2021-01-04","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"42683bd2-2415-405b-8ddf-f7e9ca0d339e","url":"https://www.marine.csiro.au/ipt/rss.do","website":"https://www.marine.csiro.au/ipt","active":true},"institutes":[{"name":"Integrated Marine Observing System","oceanexpert_id":11456,"oceanexpert_parent_id":18077},{"name":"CSIRO Oceans and Atmosphere Information and Data Centre, Hobart","oceanexpert_id":17014,"oceanexpert_parent_id":19301},{"name":"CSIRO National Collections and Marine Infrastructure","oceanexpert_id":20942,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Xavier","surname":"Hoenner","organization":"Australian Ocean Data Network, Integrated Marine Observing System University of Tasmania,","position":"Research Scientist","email":null,"url":null,"organization_oceanexpert_id":11456,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Xavier","surname":"Hoenner","organization":"Australian Ocean Data Network, Integrated Marine Observing System University of Tasmania,","position":"Research Scientist","email":null,"url":null,"organization_oceanexpert_id":11456,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Dave","surname":"Watts","organization":"CSIRO Oceans and Atmosphere","position":"OBIS Australia Data manager","email":"dave.watts@csiro.au","url":"http://www.obis.org.au/","organization_oceanexpert_id":17014,"type_display":"Metadata Provider"},{"role":"publisher","type":"associatedParty","givenname":null,"surname":"OBIS Australia Node manager","organization":"CSIRO National Collections and Marine Infrastructure Data Centre","position":"OBIS Australia Data Manager","email":"obisau@csiro.au","url":"http://www.obis.org.au","organization_oceanexpert_id":20942,"type_display":"Publisher"}],"nodes":[{"id":"2a57cd59-6799-4579-955e-27c9af97aea4","name":"OBIS Australia"}],"keywords":[{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":9287,"records":310669040},{"year":2025,"downloads":13412,"records":3596628435},{"year":2024,"downloads":13579,"records":4926471504},{"year":2023,"downloads":6521,"records":3795660055},{"year":2022,"downloads":6949,"records":2688160208},{"year":2021,"downloads":9949,"records":2270448435},{"year":2020,"downloads":1844,"records":762632717},{"year":2019,"downloads":336,"records":87072235}],"tags":null,"disable_extensions":null,"records":391},{"id":"7bd0e1a6-dc41-4e1e-abe7-0eec0dd92317","url":"http://ipt.iobis.org/obis-deepsea/resource?r=fish_and_benthic_data_around_bermuda","archive":"https://ipt.iobis.org/obis-deepsea/archive.do?r=fish_and_benthic_data_around_bermuda","published":"2021-09-06T07:18:39.000Z","created":"2021-09-01T11:51:06.548Z","updated":"2025-11-10T00:59:41.443Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":166,"absence":0,"dropped":0,"Occurrence":1820,"DNADerivedData":0,"MeasurementOrFact":2430},"extent":"POLYGON((-65.1822 31.9318,-64.1839 31.9318,-64.1839 32.9395,-65.1822 32.9395,-65.1822 31.9318))","title":"Nekton Bermuda data and additional material","citation":null,"citation_id":null,"abstract":"Abstract of the project\nFish data\n“Shallow coral reef ecosystems worldwide are affected by local and global anthropogenic stressors. Exploring fish assemblages on deeper reefs is therefore important to examine their connectivity, and to help understand the biodiversity, ecology, distinctiveness, evolutionary history and threats in this sparsely studied environment. Conducting visual surveys on the Bermuda slope and a nearby seamount at depths from 15 to 300 m, we document decreasing fish biomass and diversity with increasing depth. Fish assemblages were primarily depth-stratified, with distinct suites of species inhabiting shallow (<30 m depth) and upper (60 m) and lower (90 m) mesophotic coral ecosystems, and confirming the presence of a distinct rariphotic (∼150–300 m) assemblage. We also report evidence of anthropogenic pressures throughout our surveyed depths. Our results highlight the novelty of deeper reef fish faunas, therefore suggesting limited applicability of the deep reef refuge hypothesis, and showcase the vulnerability of deep reefs to targeted fishing pressure and invasive species.”\nStefanoudis, P.V., Gress, E., Pitt, J.M., Smith, S.R., Kincaid, T., Rivers, M., Andradi-Brown, D.A., Rowlands, G., Woodall, L.C. and Rogers, A.D., 2019. Depth-dependent structuring of reef fish assemblages from the shallows to the rariphotic zone. Frontiers in Marine Science, 6, p.307, https://doi.org/10.3389/fmars.2019.00307.\n\nBenthic data\n“Worldwide coral reefs face catastrophic damage due to a series of anthropogenic stressors. Investigating how coral reefs ecosystems are connected, in particular across depth, will help us understand if deeper reefs harbour distinct communities. Here, we explore changes in benthic community structure across 15–300 m depths using technical divers and submersibles around Bermuda. We report high levels of floral and faunal differentiation across depth, with distinct assemblages occupying each depth surveyed, except 200–300 m, corresponding to the lower rariphotic zone. Community turnover was highest at the boundary depths of mesophotic coral ecosystems (30–150 m) driven largely by taxonomic turnover and to a lesser degree by ordered species loss (nestedness). Our work highlights the biologically unique nature of benthic communities in the mesophotic and rariphotic zones, and their limited connectivity to shallow reefs, thus emphasizing the need to manage and protect deeper reefs as distinct entities.”\nStefanoudis, P.V., Rivers, M., Smith, S.R., Schneider, C.W., Wagner, D., Ford, H., Rogers, A.D. and Woodall, L.C., 2019. Low connectivity between shallow, mesophotic and rariphotic zone benthos. Royal Society open science, 6(9), p.190958, https://doi.org/10.1098/rsos.190958.\nProject PI\nLucy Woodall\n\nGeographical coverage\n31.9318-32.9395 N, 64.1839-65.9676 W\n\nData manager\nParis Stefanoudis","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"286288a8-ecdf-4d62-9159-85f22a72f4ec","url":"http://ipt.iobis.org/obis-deepsea/rss.do","website":"http://ipt.iobis.org/obis-deepsea","active":true},"institutes":[{"name":"Senckenberg Gesellschaft für Naturforschung","oceanexpert_id":6271,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Hanieh","surname":"Saeedi","organization":"Senckenberg Research Institute and Natural History Museum","position":"Data manger deep-sea node","email":"hanieh.saeedi@senckenberg.de","url":null,"organization_oceanexpert_id":6271,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Paris","surname":"Stefanoudis","organization":"Nekton Begbroke Science Park","position":"Data Manager","email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Nico","surname":"Fassbender","organization":"Nekton Begbroke Science Park","position":"Data manager","email":"nico@nektonmission.org","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"user","type":"associatedParty","givenname":"Hanieh","surname":"Saeedi","organization":null,"position":null,"email":"hanieh.saeedi@senckenberg.de","url":null,"organization_oceanexpert_id":null,"type_display":"User"}],"nodes":[{"id":"6f3223e3-50a6-4ba5-b02c-0037ae3863ce","name":"OBIS Deep Sea"}],"keywords":[{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"}],"downloads":[{"year":2026,"downloads":4432,"records":306237},{"year":2025,"downloads":6046,"records":4145817},{"year":2024,"downloads":6883,"records":5781010},{"year":2023,"downloads":3984,"records":4482585},{"year":2022,"downloads":3764,"records":3227124},{"year":2021,"downloads":3243,"records":1061055}],"tags":null,"disable_extensions":null,"records":303},{"id":"724eb292-104f-4e8f-8f26-ffa45a1a3be5","url":"https://ipt.inbo.be/resource?r=2013_albertkanaal","archive":"https://ipt.inbo.be/archive.do?r=2013_albertkanaal","published":"2026-06-08T14:20:02.000Z","created":"2024-09-25T09:15:28.747Z","updated":"2026-06-08T14:46:02.391Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":2,"Occurrence":152761,"DNADerivedData":0,"MeasurementOrFact":885},"extent":"POLYGON((-8.9012 42.21486,8.97537 42.21486,8.97537 60.12148037,-8.9012 60.12148037,-8.9012 42.21486))","title":"2013_ALBERTKANAAL - Acoustic telemetry data for European eel (Anguilla anguilla) and hatched Salmon (Salmo salar) in the Albert canal (Belgium)","citation":"Baeyens R, Vergeynst J, De Maerteleire N, Desmet P, Gelaude E, Milotic T, Mouton A, Pauwels I, Pieters S, Reyserhove L, Robberecht K, Verhelst P, Coeck J (2026). 2013_ALBERTKANAAL - Acoustic telemetry data for European eel (Anguilla anguilla) and hatched Salmon (Salmo salar) in the Albert canal (Belgium). Version 1.5. Research Institute for Nature and Forest (INBO). Occurrence dataset. https://doi.org/10.14284/431","citation_id":"https://doi.org/10.14284/431","abstract":"\nThis is an acoustic telemetry dataset published by the Research Institute for Nature and Forest (INBO). It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network (https://lifewatch.be/en/fish-acoustic-receiver-network) for the project/study 2013_albertkanaal, using VEMCO tags (V7, V9, V13) and receivers (VR2AR, VR2Tx, VR2W). In total 161 female individuals of European eel (Anguilla anguilla) and 134 (hatched) smolts of Atlantic salmon (Salmo salar) were captured, tagged and released between 2013 and 2017, to study the effect of shipping locks and hydropower plants on their downstream migration in the Albert canal.
Navigation locks play an important role for ship navigation on canals and other regulated waterways worldwide. Unfortunately, these structures may severely impact the aquatic ecosystem and freshwater fish in particular. In Belgium (Europe), the Albert canal connecting the Meuse river to the Scheldt river, is an important migration route for European eel (critically endangered) and Atlantic salmon (vulnerable). During their downstream migration these fish are hampered by six subsequent navigation lock complexes present in the canal. Three of which are by-passed by a small channel leading to a hydropower plant with large Archimedes screw turbines. In the coming years, three more such hydropower plants are to be installed next to three of six ship lock complexes. The Archimedes screws function both as pump and turbine (hydropower generator). Two dimensional fine scale positioning, as well as impact assessment through assessment of fish injury and mortality at the Archimedes screws, was performed to better understand the overall impact of these anthropogenic structures on diadromous fish, such as eel and salmon.
This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch. The study was commissioned by the Vlaamse Waterweg NV.
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (https://lifewatch.be/etn/) and are available in Baeyens et al. (2020, https://doi.org/10.14284/431).
\n ","intellectualrights":"To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0)","feed":{"id":"2b52ff52-bd4f-4800-97b6-882bc7698a22","url":"https://ipt.inbo.be/rss.do","website":"https://ipt.inbo.be","active":true},"institutes":[{"name":"Vlaamse Overheid - Instituut voor Natuur- en Bosonderzoek","oceanexpert_id":17039,"oceanexpert_parent_id":null},{"name":"Universiteit Gent","oceanexpert_id":19328,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Raf","surname":"Baeyens","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Jenna","surname":"Vergeynst","organization":"Ghent University","position":null,"email":null,"url":null,"organization_oceanexpert_id":19328,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Nico","surname":"De Maerteleire","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Peter","surname":"Desmet","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Emilie","surname":"Gelaude","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Tanja","surname":"Milotic","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Ans","surname":"Mouton","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Ine","surname":"Pauwels","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Sébastien","surname":"Pieters","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Lien","surname":"Reyserhove","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Karen","surname":"Robberecht","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Pieterjan","surname":"Verhelst","organization":"Ghent University","position":null,"email":null,"url":null,"organization_oceanexpert_id":19328,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Johan","surname":"Coeck","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ine","surname":"Pauwels","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Peter","surname":"Desmet","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":"peter.desmet@inbo.be","url":null,"organization_oceanexpert_id":17039,"type_display":"Metadata Provider"}],"nodes":[{"id":"4bf79a01-65a9-4db6-b37b-18434f26ddfc","name":"EurOBIS"}],"keywords":[{"keyword":"Acoustic telemetry","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Telemetry","thesaurus":"ETN Context"},{"keyword":"animal movement","thesaurus":"n/a"},{"keyword":"animal tracking","thesaurus":"n/a"},{"keyword":"biologging","thesaurus":"n/a"},{"keyword":"hydropower","thesaurus":"n/a"},{"keyword":"impact assessment","thesaurus":"n/a"},{"keyword":"LifeWatch","thesaurus":"n/a"},{"keyword":"migration barriers","thesaurus":"n/a"},{"keyword":"shipping canals","thesaurus":"n/a"},{"keyword":"VEMCO","thesaurus":"n/a"},{"keyword":"Migration","thesaurus":"CSA Technology Research Database Master Thesaurus"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"}],"downloads":[{"year":2026,"downloads":374,"records":33815829},{"year":2025,"downloads":2599,"records":383583315},{"year":2024,"downloads":1002,"records":157844839}],"tags":null,"disable_extensions":null,"records":294},{"id":"e5947aa3-8d18-425b-958e-36fe264bf2c8","url":"https://members.oceantrack.org/ipt/resource?r=otnntnuntnurivernidelvapr","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnntnuntnurivernidelvapr","published":"2026-06-15T16:44:23.000Z","created":"2019-02-20T16:20:40.000Z","updated":"2026-06-15T17:34:07.506Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":142492,"absence":0,"dropped":0,"Occurrence":142212,"DNADerivedData":0,"MeasurementOrFact":1065},"extent":"POLYGON((10.3491 63.3832,10.42727 63.3832,10.42727 63.45153,10.3491 63.45153,10.3491 63.3832))","title":"NTNU River Nidelva Project","citation":"Davidsen, J.G., Arnekleiv, J.V., Koksvik, J.I. 2012. Migration of anadromous brown trout between river and fjord, Nidelva, Norway.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and Norwegian University of Science and Technology (NTNU) NTNU River Nidelva Project, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=RNP).\n
Abstract:The purpose of the River Nidelva project is to monitor the migration of anadromous brown trout between river and fjord. Hatchery-reared sea trout are tracked in order to monitor their willingness to migrate to the ocean. Adult sea trout of wild origin are tagged and tracked for 14 months in order to map their movements between freshwater and saline habitats.
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"OTN","position":"Data Manager","email":"otndc@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Jan Grimsrud","surname":"Davidsen","organization":"Norwegian University of Science and Technology","position":null,"email":"jan.davidsen@ntnu.no","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Jo Vegar","surname":"Arnekleiv","organization":"Norwegian University of Science and Technology","position":null,"email":"jo.arnekleiv@ntnu.no","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Jan Ivar","surname":"Koksvik","organization":"Norwegian University of Science and Technology","position":null,"email":"jan.koksvik@ntnu.no","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Jan Grimsrud","surname":"Davidsen","organization":"Norwegian University of Science and Technology","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":294,"records":11098859},{"year":2025,"downloads":2445,"records":294443722},{"year":2024,"downloads":3251,"records":466859221},{"year":2023,"downloads":2473,"records":105057952},{"year":2022,"downloads":1768,"records":399372},{"year":2021,"downloads":176,"records":39424}],"tags":null,"disable_extensions":null,"records":224},{"id":"b46bbf90-245d-4a32-b18a-e934fd7b0ff3","url":"https://members.oceantrack.org/ipt/resource?r=otnuwasheffectsofultravio","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnuwasheffectsofultravio","published":"2026-06-09T15:44:55.000Z","created":"2019-02-20T16:17:13.000Z","updated":"2026-06-09T16:00:32.873Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":2652,"absence":0,"dropped":0,"Occurrence":1799,"DNADerivedData":0,"MeasurementOrFact":834},"extent":"POLYGON((-127.49274 47.73783,-121.97974 47.73783,-121.97974 50.90033,-127.49274 50.90033,-127.49274 47.73783))","title":"Effects of ultraviolet radiation exposure on salmon smolt mortality","citation":"Melnychuk MC, Walters CJ, Christensen V, Bothwell ML, and Welch DW. 2012. Effects of solar ultraviolet radiation exposure on early ocean survival and fry-to-smolt growth of juvenile salmon.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and University of Washington (UWash) Effects of ultraviolet radiation exposure on salmon smolt mortality, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.MLNCHK).\n
Abstract:Marine survival rates of many juvenile salmon populations have declined in recent decades. Although several potential causes have been proposed, there has been little conclusive evidence for which factors are responsible or not responsible for these declines. We experimen- tally addressed the hypothesis that exposure of coho salmon Oncorhynchus kisutch or sockeye salmon O. nerka to solar ultraviolet-B radiation (UVB) during freshwater rearing of fry and parr life-history stages increases mortality at the time of smoltification and ocean entry. Juvenile coho and sockeye salmon were reared in outdoor hatchery tanks either exposed to full spectrum sun- light or shielded from UVB radiation by plastic screens for up to 9 mo prior to release. Smolts were tagged with acoustic transmitters and detected with hydrophone receivers during their downriver and early ocean migration. Survival of treatment groups was compared using Cormack-Jolly- Seber and Burnham mark-recapture models. While exposure to UVB resulted in decreased growth of juvenile coho salmon, survivorship during the early marine period was unaffected by the UVB treatment for both populations. This first attempt to experimentally address the hypo - thesis of impaired survival resulting from solar UVB radiation has shown that other factors are more likely responsible for observed declines in salmon marine survival rates. Taken directly from Melnychuk MC, Walters CJ, Christensen V, Bothwell ML, and Welch DW. 2012. Effects of solar ultraviolet radiation exposure on early ocean survival and fry-to-smolt growth of juvenile salmon. Marine Ecology Progress Series 457: 251–264. doi:10.3354/meps09426
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"OTN","position":"Data Manager","email":"otndc@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Mike","surname":"Melnychuk","organization":"University of Washington","position":null,"email":"mmel@u.washington.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Max","surname":"Bothwell","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"max.bothwell@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Carl","surname":"Walters","organization":"University of British Columbia","position":null,"email":"c.walters@oceans.ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Villy","surname":"Christensen","organization":"University of British Columbia","position":null,"email":"v.christensen@oceans.ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Scott","surname":"Hinch","organization":"University of British Columbia","position":null,"email":"scott.hinch@ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Mike","surname":"Melnychuk","organization":"Marine Stewardship Council","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":317,"records":327876},{"year":2025,"downloads":2554,"records":4497500},{"year":2024,"downloads":3311,"records":6523457},{"year":2023,"downloads":2719,"records":2636668},{"year":2022,"downloads":1872,"records":1132583},{"year":2021,"downloads":193,"records":114759}],"tags":null,"disable_extensions":null,"records":198},{"id":"de1b9e9a-d29a-4052-8706-29849dc7a8f3","url":"https://members.oceantrack.org/ipt/resource?r=otnosunoakestags","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnosunoakestags","published":"2026-06-09T15:44:45.000Z","created":"2019-02-20T16:23:54.000Z","updated":"2026-06-09T16:01:44.344Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":4137,"absence":0,"dropped":0,"Occurrence":3862,"DNADerivedData":0,"MeasurementOrFact":328},"extent":"POLYGON((-124.34367 44.36097,-123.73072 44.36097,-123.73072 46.56961,-124.34367 46.56961,-124.34367 44.36097))","title":"Noakes Tags","citation":"Noakes, David 2009. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and Oregon State University (OSU) Noakes Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.NOAK).\n
Abstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Oregon State University","oceanexpert_id":13818,"oceanexpert_parent_id":null},{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"OTN","position":"Data Manager","email":"otndc@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"David","surname":"Noakes","organization":"Oregon State University","position":null,"email":"david.noakes@oregonstate.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"David","surname":"Noakes","organization":"Oregon State University","position":null,"email":null,"url":null,"organization_oceanexpert_id":13818,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":212,"records":788660},{"year":2025,"downloads":2414,"records":9189706},{"year":2024,"downloads":3211,"records":12494516},{"year":2023,"downloads":2629,"records":3156748},{"year":2022,"downloads":1773,"records":291651},{"year":2021,"downloads":175,"records":28700}],"tags":null,"disable_extensions":null,"records":164},{"id":"8a5040ba-4284-4146-a727-30375d243846","url":"https://members.oceantrack.org/ipt/resource?r=otndalspg-atlanticsalmonm","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndalspg-atlanticsalmonm","published":"2025-11-05T20:58:04.000Z","created":"2023-09-22T17:22:39.799Z","updated":"2025-11-07T22:46:09.540Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":6699,"absence":0,"dropped":0,"Occurrence":6212,"DNADerivedData":0,"MeasurementOrFact":948},"extent":"POLYGON((-67.38 46.33,-56.578 46.33,-56.578 51.51897,-67.38 51.51897,-67.38 46.33))","title":"SPG - Atlantic salmon migration, survival and disease","citation":"Crossin, G., Bailey, M., Hutchings, J, Whoriskey, F. 2019. Interactions between migration, marine survival and disease susceptibility in Atlantic salmon.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/ajqudl","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Dalhousie University (DAL) SPG - Atlantic salmon migration, survival and disease, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=V2LATSLM).\nAbstract:Healthy, sustainable Atlantic salmon (Salmo salar) stocks are important economically, ecologically, and culturally to Canada. However, many populations have been severely decreasing since the 1980s, leading to an endangered listing for many populations by the Committee on the Status of Endangered Wildlife in Canada (COSEWIC). Currently, the greatest impacts to their survival have been linked to juvenile survival upon entry into the marine environment. In this Strategic Partnership Grant proposal, we will use acoustic telemetry and cutting edge genomic techniques to address several strategic issues. Firstly, with our partners at Fisheries and Oceans Canada (DFO) and at the Atlantic Salmon Federation (ASF), we will examine the role of naturally occurring pathogens in mediating the migration behaviour and mortality of juvenile salmon in populations throughout the Maritimes, Quebec, and Newfoundland & Labrador. Secondly, we will examine the interactions of wild salmon with aquaculture net-pens throughout the region by quantifying residency patterns, migration pathways, and mortality near net-pens. In parallel, we will characterize pathogen profiles in water samples collected near net-pens, and by opportunistically sampling net-pen escapees, which are frequently caught in a fish-ladder on a river in New Brunswick, we will compare disease profiles of aquaculture and wild salmon in the same river. Thirdly, we will examine the effects of hatchery rearing on the behaviour and survival of juveniles salmon. Hatchery rearing is commonly used for salmon supplementation, and by comparing hatchery and wild fish in the same river, we will explore whether hatchery fish have different susceptibilities to pathogens and altered migration behaviour. Ultimately, we will use the data that we collect from these studies to develop models that examine the degree to which mortality can be explained by aquaculture and/or hatchery operations versus natural environmental variation, and whether these are actually preventing the recovery of Atlantic salmon populations. These issues are of paramount importance to DFO and ASF, given that the Species at Risk Act stipulates that recovery strategies must address the threats identified by COSEWIC.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Dalhousie University","oceanexpert_id":5711,"oceanexpert_parent_id":null},{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Glenn","surname":"Crossin","organization":"Dalhousie University","position":null,"email":"glenn.crossin@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Megan","surname":"Bailey","organization":"Dalhousie University","position":null,"email":"megan.bailey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Jeff","surname":"Hutchings","organization":"Dalhousie University","position":null,"email":"jeff.hutchings@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Marc","surname":"Trudel","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"marc.trudel@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Hardie","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"david.hardie@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Kristi","surname":"Miller-Saunders","organization":"Fisheries and Oceans Canada, Pacific Biological Station","position":null,"email":"kristi.saunders@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Martha","surname":"Robertson","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"martha.robertson@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Jonathan","surname":"Carr","organization":"Atlantic Salmon Federation","position":null,"email":"jcarr@asf.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Martin","surname":"Castonguay","organization":"Fisheries and Oceans Canada, Maurice Lamontagne Institute","position":null,"email":"martin.castonguay@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Richard","surname":"Davis","organization":"Dalhousie University","position":null,"email":"richard.davis@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Dave","surname":"Hebert","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"david.hebert@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Michel","surname":"Legault","organization":"Ministère des Forêts, de la Faune et des Parcs du Québec","position":null,"email":"michel.legault@mffp.gouv.qc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Eliane","surname":"Valiquette","organization":"Quebec Ministere des Ressources Naturelles et de la Faune","position":null,"email":"eliane.valiquette@mffp.gouv.qc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Glenn","surname":"Crossin","organization":"Dalhousie University","position":null,"email":null,"url":null,"organization_oceanexpert_id":5711,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":229,"records":1394816},{"year":2025,"downloads":2480,"records":15161234},{"year":2024,"downloads":3247,"records":20167694},{"year":2023,"downloads":714,"records":4467392}],"tags":null,"disable_extensions":null,"records":162},{"id":"afab2616-cc64-45a6-b04c-a5354ddec25e","url":"https://members.oceantrack.org/ipt/resource?r=otndalapoqnmatulti_k-bras","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndalapoqnmatulti_k-bras","published":"2026-06-15T14:24:02.000Z","created":"2023-09-20T17:22:38.775Z","updated":"2026-06-15T15:15:54.847Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":222265,"absence":0,"dropped":0,"Occurrence":221791,"DNADerivedData":0,"MeasurementOrFact":1280},"extent":"POLYGON((-71.17886 43.0244,-58.91703 43.0244,-58.91703 47.05213,-71.17886 47.05213,-71.17886 43.0244))","title":"Apoqnmatulti'k - Bras D'Or Lake","citation":"Iverson, S., Denny, S., Whoriskey, F., Bradford, R., Lennox, R., Jeddore, S. 2018. Apoqnmatulti'k - Use of Mi'kmaw, Local, and Western knowledge to study aquatic species in Bras d'Or Lake.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and Dalhousie University (DAL) Apoqnmatulti'k - Bras D'Or Lake, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=BDLSPG).\n
Abstract:Apoqnmatulti'k (Mi'kmaw for we help each other) is a multi-year collaborative research initiative that looks at the health and resilience of fish and other aquatic species in Mi'kma'ki. Guided by Etuaptmumk, or Two-Eyed Seeing, Apoqnmatulti'k pairs Mi'kmaw and local ways of knowing with western scientific methods to co-design and execute tracking programs to document the movements and habitat use of valued species in Pitu'pa'q (Bras d'Or Lake). Project partners include Mi'kmaw rights holders and technical advisors, local knowledge holders, commercial fishers, academia, and government. The project promotes the access, transfer and ownership of knowledge to these communities in support of their decision-making processes. The Bras d'Or Lake is one of two study sites covered under the project. The other is situated in Pekwitapa'qek (Bay of Fundy).
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Dalhousie University","oceanexpert_id":5711,"oceanexpert_parent_id":null},{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data 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http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":442,"records":37275553},{"year":2025,"downloads":2624,"records":466683124},{"year":2024,"downloads":3335,"records":543425187},{"year":2023,"downloads":750,"records":120853839}],"tags":null,"disable_extensions":null,"records":154},{"id":"a35dcafc-03f8-4abc-85b2-4c14b32c8dab","url":"https://ipt.vliz.be/eurobis/resource?r=2011_warnow","archive":"https://ipt.vliz.be/eurobis/archive.do?r=2011_warnow","published":"2026-06-08T15:49:04.000Z","created":"2026-04-30T16:00:58.604Z","updated":"2026-06-08T21:42:29.082Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":0,"Occurrence":8225,"DNADerivedData":0,"MeasurementOrFact":292},"extent":"POLYGON((-8.89921 42.21458,12.176556 42.21458,12.176556 54.179721,-8.89921 54.179721,-8.89921 42.21458))","title":"2011_Warnow: Silver eel migration in the Warnow catchment","citation":"Frankowski J, Dorow M, Reckordt M, Ubl C (2026). 2011_Warnow: Silver eel migration in the Warnow catchment. Version 1.4. Flanders Marine Institute. Occurrence dataset. https://doi.org/10.14284/736","citation_id":"https://doi.org/10.14284/736","abstract":"\nThis is an acoustic telemetry dataset containing animal (fish) tracking data collected for the project 2011_Warnow. In total 143 female individuals of Anguilla anguilla and 3 female individuals of Anguilla rostrata in their silver eel stage were captured, tagged and released in late 2011. Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network Data Platform (https://lifewatch.be/etn/).
Migration patterns of 146 female silver eels on their way through fresh and brackish water stretches of the Warnow River into the Baltic Sea were studied using acoustic telemetry. The majority of eels (77%) regained their expected downstream migration behaviour after a median rehabilitation time of 2 days. Positive rheotactic behaviour was observed for 23% of tagged eels after release, probably influenced by experimental procedures. The observed silver eel escapement rate was 63%. Two migratory groups were classified by significantly different migratory speed, time of residence in brackish waters and biometric silvering characteristics. Although the classification of silvering stages is based on these measures, the proportions of these stages did not reflect the observed differences in migratory behaviour. In the context of a permanent silver eel descent in the freshwater part of the Warnow River, a permanent escapement was likewise occurring into the Baltic Sea.
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License","feed":{"id":"e3dad797-a123-4e78-8473-5b0a295d3685","url":"http://ipt.vliz.be/eurobis/rss.do","website":"http://ipt.vliz.be/eurobis","active":true},"institutes":null,"contacts":[{"role":null,"type":"creator","givenname":"Jens","surname":"Frankowski","organization":"Mecklenburg-Vorpommern Research Centre for Agriculture and Fisheries","position":null,"email":"j.frankowski@lfa.mvnet.de","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Malte","surname":"Dorow","organization":"Mecklenburg-Vorpommern Research Centre for Agriculture and Fisheries","position":null,"email":"m.dorow@lfa.mvnet.de","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Melanie","surname":"Reckordt","organization":"Mecklenburg-Vorpommern Research Centre for Agriculture and Fisheries","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Claus","surname":"Ubl","organization":"Deutscher Fischerei-Verband e.V","position":null,"email":"info@deutscher-fischerei-verband.de","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Malte","surname":"Dorow","organization":"Mecklenburg-Vorpommern Research Centre for Agriculture and Fisheries","position":null,"email":"m.dorow@lfa.mvnet.de","url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":null,"surname":null,"organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"}],"nodes":[{"id":"4bf79a01-65a9-4db6-b37b-18434f26ddfc","name":"EurOBIS"}],"keywords":[{"keyword":"Acoustic data","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic detection","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic tags","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Tags","thesaurus":"ETN Context"},{"keyword":"Acoustic telemetry","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Telemetry","thesaurus":"ETN Context"},{"keyword":"Acoustic tracking","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic tracking","thesaurus":"CAB Thesaurus"},{"keyword":"ANE","thesaurus":"ASFA Geoterms"},{"keyword":"Germany","thesaurus":"ASFA Geoterms"},{"keyword":"Mecklenburg-Vorpommern","thesaurus":"ASFA Geoterms"},{"keyword":"Animal Project","thesaurus":"ETN Context"},{"keyword":"Catadromous fish","thesaurus":"ASFA Thesaurus List"},{"keyword":"Catadromous migrations","thesaurus":"ASFA Thesaurus List"},{"keyword":"Catadromous migrations","thesaurus":"CAB Thesaurus"},{"keyword":"Catadromous species","thesaurus":"CAB Thesaurus"},{"keyword":"Tracking","thesaurus":"ASFA Thesaurus List"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"}],"downloads":[{"year":2026,"downloads":122,"records":747354}],"tags":null,"disable_extensions":null,"records":146},{"id":"b0dd257d-fc59-4621-ad78-99bf3c872a0d","url":"http://ipt.iobis.org/afrobis/resource?r=elmo","archive":"https://ipt.iobis.org/afrobis/archive.do?r=elmo","published":"2020-12-02T14:08:28.000Z","created":null,"updated":"2026-09-08T16:53:36.596Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":0,"Occurrence":146,"DNADerivedData":0,"MeasurementOrFact":1314},"extent":"POLYGON((-34.2718 18.4599,-26.841456 18.4599,-26.841456 32.893689,-34.2718 32.893689,-34.2718 18.4599))","title":"Elasmobranch sightings along the South African coastline","citation":"Schroeter, L.S. 2016. ELMO (South African Elasmobranch Monitoring). Citizen Science","citation_id":null,"abstract":"\nElasmobranch sightings along the South African coastline submitted through the ELMO (South African Elasmobranch Monitoring) citizen science project. Data include underwater, terrestrial and aerial observations.
\n ","intellectualrights":"This [DATA(BASE)-NAME] is made available under the Open Data Commons Attribution License: http://www.opendatacommons.org/licenses/by/1.0/.","feed":{"id":"052e40a0-84f9-4623-bccf-59ba8aa05a57","url":"http://ipt.iobis.org/afrobis/rss.do","website":"http://ipt.iobis.org/afrobis","active":true},"institutes":null,"contacts":[{"role":null,"type":"creator","givenname":"Lisa","surname":"Schroeter","organization":"ELMO (South African Elasmobranch Monitoring)","position":null,"email":"lschroeter@posteo.de","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Lisa","surname":"Schroeter","organization":"ELMO (South African Elasmobranch Monitoring)","position":null,"email":"lschroeter@posteo.de","url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Lisa","surname":"Schroeter","organization":"ELMO (South African Elasmobranch Monitoring)","position":null,"email":"lschroeter@posteo.de","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"publisher","type":"associatedParty","givenname":"Ursula","surname":"von St Ange","organization":"AfrOBIS","position":null,"email":"uvstange@csir.co.za","url":null,"organization_oceanexpert_id":null,"type_display":"Publisher"}],"nodes":[{"id":"14fc439c-707d-41d6-a3d4-b9d2696205fe","name":"AfrOBIS"}],"keywords":[{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"}],"downloads":[{"year":2026,"downloads":1500,"records":27906},{"year":2025,"downloads":3834,"records":339309},{"year":2024,"downloads":4828,"records":471746},{"year":2023,"downloads":3375,"records":365169},{"year":2022,"downloads":2636,"records":261019},{"year":2021,"downloads":3095,"records":291597},{"year":2020,"downloads":928,"records":97268},{"year":2019,"downloads":153,"records":10769}],"tags":["https://rs.obis.org/obis/vocabulary/DatasetType/CitizenScience"],"disable_extensions":null,"records":146},{"id":"05d3a928-d9de-4855-ac9c-137d12d3a3cb","url":"https://ipt.inbo.be/resource?r=2015_phd_verhelst_eel","archive":"https://ipt.inbo.be/archive.do?r=2015_phd_verhelst_eel","published":"2026-06-08T14:25:38.000Z","created":"2024-09-25T09:15:26.367Z","updated":"2026-06-08T14:55:02.449Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":0,"Occurrence":81324,"DNADerivedData":0,"MeasurementOrFact":272},"extent":"POLYGON((-9.03621 38.44412,8.95263 38.44412,8.95263 58.60499,-9.03621 58.60499,-9.03621 38.44412))","title":"2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium)","citation":"Verhelst P, Reubens J, Coeck J, De Maerteleire N, Desmet P, Gelaude E, Mouton A, Pieters S, Reyserhove L, Robberechts K, Moens T (2026). 2015_PHD_VERHELST_EEL - Acoustic telemetry data for European eel (Anguilla anguilla) in the Scheldt estuary and southern North Sea (Belgium). Version 1.4. Ghent University. Occurrence dataset. https://doi.org/10.14284/434","citation_id":"https://doi.org/10.14284/434","abstract":"\nThis is an acoustic telemetry dataset published by Ghent University. It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network (https://lifewatch.be/en/fish-acoustic-receiver-network) for the project/study 2015_phd_verhelst_eel, using VEMCO tags (V13) and receivers (VR2AR, VR2Tx, VR2W). In total 136 female individuals of European eel (Anguilla anguilla) were captured, tagged and released between 2015 and 2018 in the Scheldt estuary, to study their migration behaviour - especially their use of selective tidal stream transport - in a tidal system without migration barriers.
Large estuaries with a complete salinity gradient from a tidal freshwater zone to marine have become rare due to water regulating constructions such as sluices, shipping locks, water pumping stations and dams. However, the Scheldt estuary in Belgium still has an extensive estuary of ca 160 km. Diadromous fish have to overcome substantial distances which come with a high energetic cost. Due to the high energetic cost of migration and the low adult survival, some of these species have developed semelparity. Consequently, a bioenergetic trade-off between migration and reproduction may exist for semelparous fish species, especially since many will stop feeding during migration: the smaller the energy expenditure during migration, the larger the amount of energy that may remain available for gonad maturation. An example where migration can have important bioenergetic repercussions is migration through strong tidal systems. To reduce energy loss in such systems, fish may perform selective tidal stream transport (STST): an animal ascends into the water column with the appropriate tide and rests on or in the bottom during the opposite tide. However, the use of STST by silver European eels is still controversial. In this study, we found strong evidence that silver European eels apply STST. The results illustrate that eels can distinguish between ebb and flood and suggest that tides play a role in orientation, either directly or indirectly. The general migration speed was higher in the downstream part of the estuary compared to the upstream part, while tidal migration speed was equal in both parts, indicating that eels migrated more consistently in the downstream part. The results of this study give insight in how a diadromous species migrates through an estuary and underline the importance of the tides.
This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch.
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (https://lifewatch.be/etn/) and are available in Verhelst et al. (2020, https://doi.org/10.14284/434).
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(INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Tom","surname":"Moens","organization":"Ghent University","position":null,"email":null,"url":null,"organization_oceanexpert_id":19328,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Pieterjan","surname":"Verhelst","organization":"Ghent University","position":null,"email":null,"url":null,"organization_oceanexpert_id":19328,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Peter","surname":"Desmet","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":"peter.desmet@inbo.be","url":null,"organization_oceanexpert_id":17039,"type_display":"Metadata Provider"}],"nodes":[{"id":"4bf79a01-65a9-4db6-b37b-18434f26ddfc","name":"EurOBIS"}],"keywords":[{"keyword":"Acoustic telemetry","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Telemetry","thesaurus":"ETN 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http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"}],"downloads":[{"year":2026,"downloads":287,"records":17482189},{"year":2025,"downloads":2405,"records":191626561},{"year":2024,"downloads":972,"records":79364268}],"tags":null,"disable_extensions":null,"records":136},{"id":"bf2ff431-c12b-40ca-9548-218d248c8daf","url":"https://members.oceantrack.org/ipt/resource?r=otnodfwheringtags","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnodfwheringtags","published":"2024-11-05T20:58:55.000Z","created":"2019-02-20T16:17:19.000Z","updated":"2025-11-13T01:05:11.034Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":754,"absence":0,"dropped":0,"Occurrence":493,"DNADerivedData":0,"MeasurementOrFact":214},"extent":"POLYGON((-124.43723 45.60329,-122.0426 45.60329,-122.0426 46.6002777777778,-124.43723 46.6002777777778,-124.43723 45.60329))","title":"Hering Tags","citation":"Hering, David . Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/7p6y4j","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Oregon Department of Fish and Wildlife (ODFW) Hering Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.HERG).\nAbstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"David","surname":"Hering","organization":"Oregon Department of Fish and Wildlife","position":null,"email":"david_hering@nps.gov","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"David","surname":"Hering","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":166,"records":79895},{"year":2025,"downloads":2334,"records":1144264},{"year":2024,"downloads":3165,"records":1576424},{"year":2023,"downloads":2417,"records":536721},{"year":2022,"downloads":1731,"records":186822},{"year":2021,"downloads":176,"records":18832}],"tags":null,"disable_extensions":null,"records":107},{"id":"f3f5f40c-de45-4f03-b8d7-a4600ae33211","url":"https://ipt.inbo.be/resource?r=2012_leopoldkanaal","archive":"https://ipt.inbo.be/archive.do?r=2012_leopoldkanaal","published":"2026-06-08T14:03:40.000Z","created":"2024-09-25T09:15:29.510Z","updated":"2026-06-08T14:27:27.119Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":2,"Occurrence":110734,"DNADerivedData":0,"MeasurementOrFact":208},"extent":"POLYGON((2.917725 51.2396828,8.9453 51.2396828,8.9453 58.59352,2.917725 58.59352,2.917725 51.2396828))","title":"2012_LEOPOLDKANAAL - Acoustic telemetry data for European eel (Anguilla anguilla) in a polder area in Flanders (Belgium)","citation":"Verhelst P, Buysse D, Baeyens R, De Maerteleire N, Desmet P, Gelaude E, Jacobs Y, Milotic T, Mouton A, Reyserhove L, Robberechts K, Coeck J (2026). 2012_LEOPOLDKANAAL - Acoustic telemetry data for European eel (Anguilla anguilla) in a polder area in Flanders (Belgium). Version 1.6. Research Institute for Nature and Forest (INBO). Occurrence dataset. https://doi.org/10.14284/428","citation_id":"https://doi.org/10.14284/428","abstract":"\nThis is an acoustic telemetry dataset published by the Research Institute for Nature and Forest (INBO). It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network (https://lifewatch.be/en/fish-acoustic-receiver-network) for the project/study 2012_leopoldkanaal, using VEMCO tags (V7, V13) and receivers (VR2AR, VR2W). In total 104 female individuals of European eel (Anguilla anguilla) were captured, tagged and released in 2011 and 2012, to study their movement behaviour during the yellow eel stage and migration behaviour during the silver eel stage for 4 years in Meetjesland, a polder area in Flanders, Belgium.
Polder areas are lowland systems below sea level that are drained for agricultural and urbanization purposes. Hence, they are characterised by water regulating structures such as dykes, water pumping stations and weirs. They are characterised by a network of canals, connected ponds and ditches, resulting in a high habitat diversity and thus many potential growth areas. When the water level rises beyond a certain threshold during precipitation events, water is pumped from the polder area into the sea to maintain a specific water level. Not only does this result in irregular water flows, water pumping stations have already shown to negatively affect fish passing through them by various injuries and mortalities. In this tracking study, we investigated the movement and ranging behaviour of resident, yellow eels to understand their spatio-temporal habitat use in the polder. Second, we analysed what routes migrating silver eels take, what environmental factors influence this migration and to what extent they are delayed by the migration barriers.
This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch. The study was commissioned by the Agency of Nature and Forest (ANB).
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (https://lifewatch.be/etn/) and are available in Verhelst et al. (2020, https://doi.org/10.14284/428).
\n ","intellectualrights":"To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0)","feed":{"id":"2b52ff52-bd4f-4800-97b6-882bc7698a22","url":"https://ipt.inbo.be/rss.do","website":"https://ipt.inbo.be","active":true},"institutes":[{"name":"Universiteit Gent, Marine Biology research group","oceanexpert_id":11235,"oceanexpert_parent_id":19328},{"name":"Vlaamse Overheid - Instituut voor Natuur- en Bosonderzoek","oceanexpert_id":17039,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Pieterjan","surname":"Verhelst","organization":"Universiteit Gent; Faculteit Wetenschappen; Vakgroep Biologie; Onderzoeksgroep Mariene Biologie","position":null,"email":null,"url":null,"organization_oceanexpert_id":11235,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"David","surname":"Buysse","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Raf","surname":"Baeyens","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Nico","surname":"De Maerteleire","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Peter","surname":"Desmet","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Emilie","surname":"Gelaude","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Yves","surname":"Jacobs","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Tanja","surname":"Milotic","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Ans","surname":"Mouton","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Lien","surname":"Reyserhove","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Karen","surname":"Robberechts","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Johan","surname":"Coeck","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Johan","surname":"Coeck","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Peter","surname":"Desmet","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":"peter.desmet@inbo.be","url":null,"organization_oceanexpert_id":17039,"type_display":"Metadata Provider"}],"nodes":[{"id":"4bf79a01-65a9-4db6-b37b-18434f26ddfc","name":"EurOBIS"}],"keywords":[{"keyword":"Acoustic telemetry","thesaurus":"ASFA Thesaurus List"},{"keyword":"Home range","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Telemetry","thesaurus":"ETN Context"},{"keyword":"animal movement","thesaurus":"n/a"},{"keyword":"animal tracking","thesaurus":"n/a"},{"keyword":"biologging","thesaurus":"n/a"},{"keyword":"impact assessment","thesaurus":"n/a"},{"keyword":"LifeWatch","thesaurus":"n/a"},{"keyword":"migration barriers","thesaurus":"n/a"},{"keyword":"VEMCO","thesaurus":"n/a"},{"keyword":"Migration","thesaurus":"CSA Technology Research Database Master Thesaurus"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"}],"downloads":[{"year":2026,"downloads":235,"records":23914198},{"year":2025,"downloads":2393,"records":268805730},{"year":2024,"downloads":970,"records":111313637}],"tags":null,"disable_extensions":null,"records":104},{"id":"205f1a46-6e59-488e-a674-92c02cffb67c","url":"https://members.oceantrack.org/ipt/resource?r=otnkrsresidencetimeandsur","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnkrsresidencetimeandsur","published":"2023-09-22T15:58:54.000Z","created":"2019-02-20T16:20:44.000Z","updated":"2025-11-10T13:31:17.351Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":332,"absence":0,"dropped":0,"Occurrence":200,"DNADerivedData":0,"MeasurementOrFact":497},"extent":"POLYGON((-124.5401 49.11707,-122.29969 49.11707,-122.29969 52.0666,-124.5401 52.0666,-124.5401 49.11707))","title":"Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016","citation":"Welch, D., Rechisky, E., Porter, A., Winchell, P. 2016. Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016. Kintama Research Services.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/ea3dmj","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Kintama Research Services (KRS) Residence Time and Survival of Fraser River (Chilko) Chinook Salmon in the Strait of Georgia, 2016, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.CCS).\nAbstract:Marine survival of Fraser River Chinook salmon stocks has decreased to <1% in recent years and lack of information on downstream and early marine survival hampers their effective management. We conducted a small acoustic telemetry pilot study on 100 Chilko River Chinook that were reared at Chehalis Hatchery B.C. and then transported and released into the Chilko River. The project goals were to estimate freshwater survival, investigate residence timing in the Strait of Georgia, and begin to investigate early marine survival. Because marine acoustic receiver arrays capable of detecting smolts implanted with small 180 kHz acoustic tags only monitor the northern exit from the Strait of Georgia, residence time and early marine survival could only be potentially estimated if smolts migrated north before tag batteries expired five months after ocean entry. Freshwater survival of acoustic-tagged Chinook to the Fraser River mouth (49%) was comparable to other populations or species which migrate the same distance downstream; however, their downstream migration rate 18 km/day) was dramatically slower than that of wild Chilko Lake sockeye, which migrate rapidly to the ocean after exit from Chilko Lake (100-170 km/day). It is unknown whether this behavioural difference is the result of their hatchery origin and transport to Chilko Lake. Only one fish was detected in the Strait of Georgia and none were detected exiting. Combined with the results from trawl surveys, the complete lack of detections in the Discovery Islands and Johnstone Strait suggest that Chilko Chinook do not migrate directly north after river exit. Instead, they likely remain in the Strait of Georgia for at least several months. It is unclear if smolts eventually exited the Strait via the southern route, died during their summer residence, or simply ceased migration to take up residence. An animation of the movements of the Chilko Lake Chinook smolts released in 2016 is available on our website (http://kintama.com/visualizations/).","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"custodianSteward","type":"associatedParty","givenname":"Aswea","surname":"Porter","organization":"Kintama Research Services","position":null,"email":"aswea.porter@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Custodian Steward"},{"role":"contentProvider","type":"associatedParty","givenname":"Tony","surname":"Farrell","organization":"University of British Columbia","position":null,"email":"farrellt@interchange.ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Dave","surname":"Patterson","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"pattersond@pac.dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Scott","surname":"Hinch","organization":"University of British Columbia","position":null,"email":"scott.hinch@ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Steven","surname":"Cooke","organization":"Carleton University","position":null,"email":"steven.cooke@carleton.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"David","surname":"Welch","organization":"Kintama Research Services Ltd","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":183,"records":35405},{"year":2025,"downloads":2376,"records":469740},{"year":2024,"downloads":3200,"records":645490},{"year":2023,"downloads":2484,"records":323874},{"year":2022,"downloads":1751,"records":176600},{"year":2021,"downloads":212,"records":21200}],"tags":null,"disable_extensions":null,"records":98},{"id":"96c68fd3-790b-418b-9ba1-2b3762f0172b","url":"https://members.oceantrack.org/ipt/resource?r=otncbubrasdorlakesarray","archive":"https://members.oceantrack.org/ipt/archive.do?r=otncbubrasdorlakesarray","published":"2023-09-22T16:17:55.000Z","created":"2019-02-20T16:17:28.000Z","updated":"2025-11-11T03:57:02.446Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":4916,"absence":0,"dropped":0,"Occurrence":4615,"DNADerivedData":0,"MeasurementOrFact":390},"extent":"POLYGON((-60.990277 45.6591102,-56.73393 45.6591102,-56.73393 51.48399,-60.990277 51.48399,-60.990277 45.6591102))","title":"OTN Bras d'Or Lakes Array","citation":"Hatcher, B. 2011. Bras d'Or Lakes Array, Cape Breton, Nova Scotia, Canada. . Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/q0lblp","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Cape Breton University (CBU) OTN Bras d'Or Lakes Array, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=BDL).\nAbstract:The Bras d'Or Lakes Array will use OTN theory and technology to determine the ecological connections between Canada's inland sea (the Bras d'Or estuary of Cape Breton), its watershed, the Scotian Shelf, the Gulf of Saint Lawrence and the NW Atlantic Ocean. The intent is to fully instrument the sites of exchange between the major river catchements of the watershed and the estuary, the channels linking the major basins of the estuary, and all channels of exchange between the estuary and the surrounding ocean. Motile anadromous, catadromous, and marine species of significance (e.g., Atlantic salmon, American eel, Atlantic cod) will be acoustic tagged in rivers, bays, banks, and basins of the Bras d'Or to track their movements within the estuary and its watershed, and between the estuary and the surrounding OTN arenas of the NW Atlantic Ocean. The Bras d'Or Lakes Array will be located throughout the Bras d'Or estuary, including all channels connecting the estuarine waters to those of the surrounding ocean, the channels connecting the major basins of the estuary, and the mouths of the main rivers flowing into the estuary. The initial array is composed of 15 stations. An additional 11 sites are proposed for subsequent years, depending on the results obtained during the first tagging experiments.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Bruce","surname":"Hatcher","organization":"Cape Breton University","position":null,"email":"bruce_hatcher@cbu.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Martin Esteban","surname":"Leguizamon Velez","organization":"Cape Breton University","position":null,"email":"melv70@msn.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Jonathan","surname":"Carr","organization":"Atlantic Salmon Federation","position":null,"email":"jcarr@asf.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Martin","surname":"Castonguay","organization":"Fisheries and Oceans Canada, Maurice Lamontagne Institute","position":null,"email":"martin.castonguay@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Bruce","surname":"Hatcher","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":281,"records":1017762},{"year":2025,"downloads":2532,"records":11461256},{"year":2024,"downloads":3304,"records":15102626},{"year":2023,"downloads":2579,"records":3575222},{"year":2022,"downloads":1904,"records":182836},{"year":2021,"downloads":213,"records":20186}],"tags":null,"disable_extensions":null,"records":94},{"id":"e0f45753-759a-4bc2-ab24-26dba4376707","url":"https://members.oceantrack.org/ipt/resource?r=otndfo-bioinnerbayoffundy","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndfo-bioinnerbayoffundy","published":"2025-08-27T11:28:46.000Z","created":"2019-02-20T16:21:48.000Z","updated":"2025-09-15T15:41:59.728Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":1115462,"absence":0,"dropped":28,"Occurrence":1114934,"DNADerivedData":0,"MeasurementOrFact":1145},"extent":"POLYGON((-70.56533 42.523,12.94055 42.523,12.94055 65.32898,-70.56533 65.32898,-70.56533 42.523))","title":"Inner Bay of Fundy Striped Bass","citation":"Bradford, R., LeBlanc, P. 2012. Innner Bay of Fundy Atlantic Salmon Acoustic Telemetry Tag Releases.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/bftrsn","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Department of Fisheries and Oceans Canada (DFO) Inner Bay of Fundy Striped Bass, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=IBFS).\nAbstract:The Shubenacadie-Stewiacke rivers system is an important spawning and wintering area for Bay of Fundy (BoF) Striped Bass. BoF Striped Bass support economically and culturally significant indigenous food fisheries and a large recreational angling fishery. The effects of these fisheries on population status are difficult to assess because of data deficiencies concerning removal rates. This principal objective of this project is to monitor inter-annual total mortality (Z) of striped bass that are > the minimum legal retention size of 68 cm Total Length and to relate the annual rates of annual recruitments as estimated from young-of-the-year abundance surveys and fishery-independent indices of number at age. Acoustic tags with expected operational times exceeding 6 years are used to track individual fish through several spawning and over-wintering cycles. Hydrophones are deployed during April to July in the spawning areas in tidal waters and maintained through the calendar year in the non-tidal section of the Shubenacadie River to monitor annual returns to the spawning and wintering grounds respectively. The acoustic tags and hydrophone array are as well used to support a number of other research and monitoring initiatives including Striped Bass-Atlantic Salmon interactions, and American eel and Atlantic tomcod migration studies.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking 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Peter","surname":"Klimley","organization":"University of California, Davis","position":null,"email":"apklimley@ucdavis.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Andrew","surname":"Rypel","organization":"University of California, Davis","position":null,"email":"rypel@ucdavis.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Nann","surname":"Fangue","organization":"University of California, Davis","position":null,"email":"nafangue@ucdavis.edu","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Arnold","surname":"Ammann","organization":"National Oceanic and Atmospheric Administration","position":null,"email":"arnold.ammann@gmail.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Rod","surname":"Bradford","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":514,"records":344721010},{"year":2025,"downloads":2762,"records":1877653280},{"year":2024,"downloads":3543,"records":2088253354},{"year":2023,"downloads":2599,"records":464376649},{"year":2022,"downloads":1917,"records":632412},{"year":2021,"downloads":201,"records":64903}],"tags":null,"disable_extensions":null,"records":80},{"id":"a4c50c8c-e853-45c5-b5b5-30907ec9a8bb","url":"https://ipt-obis.gbif.us/resource?r=dgomb_invertebrates","archive":"https://ipt-obis.gbif.us/archive.do?r=dgomb_invertebrates","published":"2023-08-18T16:31:55.000Z","created":"2023-08-18T16:31:58.502Z","updated":"2025-11-11T04:43:39.329Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":5,"absence":0,"dropped":0,"Occurrence":163,"DNADerivedData":0,"MeasurementOrFact":89},"extent":"POLYGON((-92.00016 23.50047,-85.49994 23.50047,-85.49994 25.50039,-92.00016 25.50039,-92.00016 23.50047))","title":"The Deepwater Program: Northern Gulf of Mexico Continental Slope Habitat and Benthic Ecology - DgoMB: Invertebrates","citation":"Wolff G, Rowe G, Kennicutt M, Presley B, Bernhard J, Morse J, Montagna P, Nowlin W, Bryant W, Wade T (2023). The Deepwater Program: Northern Gulf of Mexico Continental Slope Habitat and Benthic Ecology - DgoMB: Meios. Version 1.3. United States Geological Survey. Samplingevent dataset. https://ipt-obis.gbif.us/resource?r=dgomb_meio&v=1.3","citation_id":null,"abstract":"A research program has been initiated by the Minerals Management Service (Contract No. 1435-01-99-CT-30991) to gain better knowledge of the benthic communities of the deep Gulf of Mexico entitled “The Deepwater Program: Northern Gulf of Mexico Continental Slope Habitat and Benthic Ecology.”\nIncreasing exploration and exploitation of fossil hydrocarbon resources in the deep-sea prompted the Minerals Management Service of the U.S. Department of the Interior to support an investigation of the structure and function of the assemblages of organisms that live in association with the sea floor in the deep-sea. The program, Deep Gulf of Mexico Benthos or DGoMB, is studying the northern Gulf of Mexico (GOM) continental slope from water depths of 300 meters on the upper continental slope out to greater than 3,000 meters water depth seaward of the base of the Sigsbee and Florida Escarpments. The study is focused on areas that are the most likely targets of future resource exploration and exploitation. However, to develop a Gulf-wide perspective of deep-sea communities, sampling in areas beyond those thought to be potential areas for exploration has been included in the study design. A major enhancement in the program is the extension of the transects onto the abyssal plain of the central Gulf of Mexico through collaborative studies with Mexican scientists. This additional work effort will allow assessment of benthic communities structure and function throughout the basin by sampling the deepest habitats in the region.\nThe program is designed to gain a better ability to predict variations in the structure and function of animal assemblages in relation to water depth, geographic location, time and overlying water mass. Biological studies are integrated with measurements of physical and chemical hydrographic parameters, sediment geochemical properties and geological characteristics that are known to influence benthic community distributions and dynamics. Eight (8) hypotheses are being tested on the basis of measures of benthic community structure. It is hypothesized that community structure varies as a function of: 1) water depth, 2) geographic location (east vs. west), 3) association with canyons, 4) association with mid-slope basins, 5) sea surface primary productivity, 6) proximity to hydrocarbon seeps, 7) time (seasonal and interannual scales), and 8) association with the base of escarpments.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License","feed":{"id":"8112d75b-7e78-4641-9e09-9a2cc7db7375","url":"https://ipt-obis.gbif.us/rss.do","website":"https://ipt-obis.gbif.us","active":true},"institutes":[{"name":"U.S. Geological Survey HQ","oceanexpert_id":12976,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Gary","surname":"Wolff","organization":"Texas A&M University","position":"Research 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http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":1114,"records":27675},{"year":2025,"downloads":2738,"records":369564},{"year":2024,"downloads":3669,"records":515892},{"year":2023,"downloads":1028,"records":150269}],"tags":null,"disable_extensions":null,"records":79},{"id":"1a491271-92d7-4dbf-ad47-6f60a4d45385","url":"https://ipt.vliz.be/eurobis/resource?r=2004_gudena","archive":"https://ipt.vliz.be/eurobis/archive.do?r=2004_gudena","published":"2026-06-08T15:48:25.000Z","created":"2026-04-30T13:50:54.423Z","updated":"2026-06-08T21:43:09.599Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":68,"Occurrence":1509,"DNADerivedData":0,"MeasurementOrFact":204},"extent":"POLYGON((-28.5376 38.5716,10.35937256 38.5716,10.35937256 56.61897787,-28.5376 56.61897787,-28.5376 38.5716))","title":"2004_Gudena: Silver eel migration in the Gudena River, Denmark","citation":"Aarestrup K, Thorstad E B, Koed A, Svendsen J C, Jepsen N, Pedersen M I, Økland F (2026). 2004_Gudena: Silver eel migration in the Gudena River, Denmark. Version 1.2. Flanders Marine Institute. Occurrence dataset. https://doi.org/10.14284/734","citation_id":"https://doi.org/10.14284/734","abstract":"\nThe population of European silver eel (Anguilla anguilla) has declined tremendously in the last decades. The cause of this decline is unknown, and it is necessary to investigate the migratory behaviour and survival rates of silver eels during the reproductive migration in order to understand if the decline is related to factors acting during that migration. We estimated survival and progression rates of European silver eel migrating in the lower part of the River Gudenaa and during the first phase of the marine migration in the Randers Fjord in Denmark. Fifty migrating silver eel (total body length: 56 to 84 cm) were captured, and each was equipped with an acoustic transmitter. Their migration was subsequently monitored using an array of automatic listening stations, and progression rate and mortality in the river, inner part of the fjord and outer part of the fjord were estimated.
Survival was high in fresh water. However, 60% of eels were lost in the inner and outer fjord, supporting the hypothesis that mortality is large in the early phase of the marine migration and that fishing may be a major cause of mortality of silver eels. There was no indication that the slowest-migrating individuals were more prone to fishing mortality than the faster-migrating individuals. Progression rate increased as the eels proceeded downriver and out of the fjord. The migration was predominantly nocturnal, both in the river and fjord. Based on the available evidence, a considerable increase in eel survival in the river–fjord system will be needed in order to fulfill the goals in the European Union recovery plan for eels.
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network Data Platform (https://lifewatch.be/etn/).
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY 4.0) License","feed":{"id":"e3dad797-a123-4e78-8473-5b0a295d3685","url":"http://ipt.vliz.be/eurobis/rss.do","website":"http://ipt.vliz.be/eurobis","active":true},"institutes":null,"contacts":[{"role":null,"type":"creator","givenname":"Kim","surname":"Aarestrup","organization":"Technical University of Denmark; National Institute of Aquatic Resources","position":null,"email":"kaa@aqua.dtu.dk","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Eva Bonsak","surname":"Thorstad","organization":"Norwegian Institute for Nature Research","position":null,"email":"Eva.Thorstad@nina.no","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Anders","surname":"Koed","organization":"Technical University of Denmark; National Institute of Aquatic Resources","position":null,"email":"ak@aqua.dtu.dk","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Jon Christian","surname":"Svendsen","organization":"Technical University of Denmark; National Institute of Aquatic Resources","position":null,"email":"jos@aqua.dtu.dk","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Niels","surname":"Jepsen","organization":"Technical University of Denmark; National Institute of Aquatic Resources","position":null,"email":"nj@aqua.dtu.dk","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Michael Ingemann","surname":"Pedersen","organization":"Technical University of Denmark; National Institute of Aquatic Resources","position":null,"email":"mip@aqua.dtu.dk","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Finn","surname":"Økland","organization":"Norwegian Institute for Nature Research","position":null,"email":"Finn.Okland@nina.no","url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Kim","surname":"Aarestrup","organization":"Technical University of Denmark; National Institute of Aquatic Resources","position":null,"email":"kaa@aqua.dtu.dk","url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":null,"surname":null,"organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":null,"type":"associatedParty","givenname":"Kim","surname":"Aarestrup","organization":"Technical University of Denmark; National Institute of Aquatic Resources","position":null,"email":"kaa@aqua.dtu.dk","url":null,"organization_oceanexpert_id":null,"type_display":"Associated Party"}],"nodes":[{"id":"4bf79a01-65a9-4db6-b37b-18434f26ddfc","name":"EurOBIS"}],"keywords":[{"keyword":"Acoustic data","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic detection","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic devices","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic tags","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Tags","thesaurus":"ETN Context"},{"keyword":"Acoustic telemetry","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Telemetry","thesaurus":"ETN Context"},{"keyword":"Acoustic tracking","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic tracking","thesaurus":"CAB Thesaurus"},{"keyword":"Animal Project","thesaurus":"ETN Context"},{"keyword":"Catadromous fish","thesaurus":"ASFA Thesaurus List"},{"keyword":"Catadromous migrations","thesaurus":"ASFA Thesaurus List"},{"keyword":"Catadromous migrations","thesaurus":"CAB Thesaurus"},{"keyword":"Catadromous species","thesaurus":"CAB Thesaurus"},{"keyword":"Denmark","thesaurus":"ASFA Geoterms"},{"keyword":"Network Project","thesaurus":"ETN Context"},{"keyword":"Survival rate","thesaurus":"ASFA Thesaurus List"},{"keyword":"Tracking","thesaurus":"ASFA Thesaurus List"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":116,"records":138992}],"tags":null,"disable_extensions":null,"records":68},{"id":"6d519257-c75f-4c36-bc25-8deb17d0b07b","url":"https://members.oceantrack.org/ipt/resource?r=otnacadiaufrobisherbayca","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnacadiaufrobisherbayca","published":"2026-06-15T15:06:47.000Z","created":"2019-02-20T16:16:56.000Z","updated":"2026-06-15T15:19:15.372Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":825,"absence":0,"dropped":0,"Occurrence":687,"DNADerivedData":0,"MeasurementOrFact":183},"extent":"POLYGON((-68.85868333 48.56319,-53.88946 48.56319,-53.88946 63.73828,-68.85868333 63.73828,-68.85868333 48.56319))","title":"Frobisher Bay, Canada","citation":"Spares, A. 2008.Frobisher Bay, NU, Canada: Arctic Char tagging. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and Dalhousie University (DAL) Frobisher Bay, Canada, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=FRO).\n
Abstract:This study described the marine migration distribution, movements, diet, mortality and duration of anadromous Arctic char relative to migration temporal phase and environmental conditions (salinity, temperature and prey availability, tides) in inner Frobisher Bay (63o N 68o W), a macrotidal estuary on southeastern Baffin Island, Nunavut, Canada. Of the 33 char acoustically tracked in 2009, 15 (45%) ventured beyond 10 km of either of the Armshow or Sylvia Grinnell river mouths and 9 (27%) were detected in both rivers’ estuaries. Marine mortality was estimated at 24.2% with 62.5% of the mortalities occurring within the Sylvia Grinnell River estuary. Assuming an emigration date of June 18th in both 2008 and 2009, marine migration duration was 46 to 78 days. Mean durations were 59±6 in 2008, 65±7 in 2009 and 63±7 days combined. Tracking revealed migrant movements into the intertidal zone with the flood and ebb of the tide. Most detections were in surface waters (0 to 3 m). Inter/sub-tidal movements and consecutive repetitive dives (maximum 52.8 m) resulted in extreme body temperature shifts (-0.2 to18.1oC). Approximately half of intertidal and subtidal detections were between 9 to13oC, and 1 to 3oC, respectively. Stomach contents and deep diving suggested feeding in both inter/sub-tidal zones. We suggest that char tolerate cold water at depth to capture prey in the subtidal zone, then seek warmer water to enhance feeding/digestion physiology.
\n ","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"OTN","position":"Data Manager","email":"otndc@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Aaron","surname":"Spares","organization":"Dalhousie University","position":null,"email":"ar592287@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Robert S.","surname":"Gregory","organization":"Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre","position":null,"email":"robert.gregory@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Aaron","surname":"Spares","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":173,"records":114097},{"year":2025,"downloads":2363,"records":1607927},{"year":2024,"downloads":3162,"records":2196400},{"year":2023,"downloads":2435,"records":605321},{"year":2022,"downloads":1760,"records":108255},{"year":2021,"downloads":185,"records":11285}],"tags":null,"disable_extensions":null,"records":61},{"id":"0291d647-fea2-4c10-a84f-149649e6f79c","url":"https://members.oceantrack.org/ipt/resource?r=otnkrskintamaresearchserv","archive":"https://members.oceantrack.org/ipt/archive.do?r=otnkrskintamaresearchserv","published":"2024-08-30T12:48:40.000Z","created":"2019-02-20T16:22:29.000Z","updated":"2025-11-09T21:49:11.666Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":1165,"absence":0,"dropped":0,"Occurrence":897,"DNADerivedData":0,"MeasurementOrFact":250},"extent":"POLYGON((-127.48401 48.27411,-124.03596 48.27411,-124.03596 50.85885,-127.48401 50.85885,-127.48401 48.27411))","title":"Kintama Research Services: Seymour River steelhead smolts.","citation":"Welch, D, Rechisky, E, Porter, A. 2015. Comparative Marine Survival of Seymour Steelhead and Testing Performance of 180 kHz Small Acoustic Tags in the Salish Sea. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/ejaqus","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Kintama Research Services (KRS) Kintama Research Services: Seymour River steelhead smolts., consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.KRS).\nAbstract:Fifty Seymour River steelhead smolts were double-tagged with VEMCO V9 and V4 acoustic transmitters, and then released in Malaspina Strait (east side of Texada Island in the Strait of Georgia) to migrate over acoustic arrays in the Salish Sea. The V9 transmitters allowed us to estimate early-marine survival through the northern Strait of Georgia and Discovery Islands, and provided a baseline estimate against which to evaluate the detection performance of the V4 transmitter (VEMCO’s newest, smallest transmitter). Cumulative survival over the ~170 km from release to Johnstone Strait was 46% (SE=7.0%). Detection efficiency of the V4 was 74% (SE=10%) at the Discovery Island subarray compared to 100% for the V9 tags. Since the subarray was fully functional and the tags were operating within their warranted lifespan, we consider this to be a useful first estimate of what can be achieved with the V4 tags.An animation of the movements of the Seymour River steelhead smolts released in 2015 is available on our website (http://kintama.com/visualizations/).","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"David","surname":"Welch","organization":"Kintama Research Services","position":null,"email":"david.welch@kintama.com","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Scott","surname":"Hinch","organization":"University of British Columbia","position":null,"email":"scott.hinch@ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"David","surname":"Welch","organization":"Kintama Research Services Ltd","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":204,"records":181883},{"year":2025,"downloads":2403,"records":2178811},{"year":2024,"downloads":3214,"records":2901124},{"year":2023,"downloads":2631,"records":755495},{"year":2022,"downloads":1775,"records":89500},{"year":2021,"downloads":215,"records":10750}],"tags":null,"disable_extensions":null,"records":50},{"id":"45f2f095-cd87-4b6c-8aea-06cc3a46d421","url":"https://members.oceantrack.org/ipt/resource?r=otndfobalfrytags","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndfobalfrytags","published":"2025-11-06T22:28:08.000Z","created":"2019-02-20T16:23:24.000Z","updated":"2025-11-07T20:06:38.259Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":186,"absence":0,"dropped":0,"Occurrence":88,"DNADerivedData":0,"MeasurementOrFact":80},"extent":"POLYGON((-127.48298 48.3479666666667,-123.233187 48.3479666666667,-123.233187 50.86918,-127.48298 50.86918,-127.48298 48.3479666666667))","title":"Balfry Tags","citation":"Balfry, Shannon. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/pmvczs","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Vancouver Aquarium (VanAqua) Balfry Tags, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NEP.BALF).\nAbstract:The Pacific Ocean Shelf Tracking (POST) project was designed to develop and promote the application of acoustic tagging technology to study the life history of Pacific salmon and other species migrating along the continental shelf of western North America. POST envisioned the eventual creation of a permanent continental-scale telemetry system, however, during its existence more limited pilot-scale arrays were deployed, primarily concentrated in the Pacific Northwest. These included several acoustic receiver curtains between Vancouver Island and the mainland, creating an excellent means by which to monitor coastal marine animal migrations, especially by juvenile salmonids (smolts) migrating to sea (see projects QCS, JDF and NSOG). In addition to arrays on the continental shelf, POST equipment was deployed upstream and in the estuaries of several major salmon-producing rivers. POST arrays, and POST data, were incorporated into the OTN in 2012. The integration of these arrays, their equipment and the associated animal tagging projects into OTN's global network allowed for international, widespread monitoring of important species within the Northeast Pacific Ocean. Tracking data generated from the POST arrays can be applied to the development of fishery management policies aimed at the sustainable harvest of resources, and to the understanding and conservation of other marine and diadromous species. Additional details about specific tracking projects which were originally a part of POST are only available by contacting the associated researcher.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Shannon","surname":"Balfry","organization":"Vancouver Aquarium","position":null,"email":"shannon.balfry@vanaqua.org","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"Scott","surname":"Hinch","organization":"University of British Columbia","position":null,"email":"scott.hinch@ubc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Fred","surname":"Whoriskey","organization":"Dalhousie University","position":null,"email":"fwhoriskey@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Shannon","surname":"Balfry","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":202,"records":17742},{"year":2025,"downloads":2398,"records":213496},{"year":2024,"downloads":3210,"records":284709},{"year":2023,"downloads":2632,"records":141776},{"year":2022,"downloads":1772,"records":71480},{"year":2021,"downloads":211,"records":8440}],"tags":null,"disable_extensions":null,"records":40},{"id":"384580a6-e811-427d-a7a0-1319f6d013a8","url":"https://ipt.inbo.be/resource?r=2011_rivierprik","archive":"https://ipt.inbo.be/archive.do?r=2011_rivierprik","published":"2026-06-08T13:59:14.000Z","created":"2024-09-25T09:15:30.294Z","updated":"2026-06-08T14:05:26.912Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":0,"Occurrence":5505,"DNADerivedData":0,"MeasurementOrFact":117},"extent":"POLYGON((3.4313904305 50.7917709035,4.1060977142 50.7917709035,4.1060977142 51.1042459773,3.4313904305 51.1042459773,3.4313904305 50.7917709035))","title":"2011_RIVIERPRIK - Acoustic telemetry data for river lamprey (Lampetra fluviatilis) in the upper Scheldt river (Belgium)","citation":"Buysse D, Mouton A, Baeyens R, De Maerteleire N, Desmet P, Gelaude E, Jacobs Y, Pauwels I, Reyserhove L, Coeck J (2026). 2011_RIVIERPRIK - Acoustic telemetry data for river lamprey (Lampetra fluviatilis) in the upper Scheldt river (Belgium). Version 1.5. Research Institute for Nature and Forest (INBO). Occurrence dataset. https://doi.org/10.14284/429","citation_id":"https://doi.org/10.14284/429","abstract":"\nThis is an acoustic telemetry dataset published by the Research Institute for Nature and Forest (INBO). It contains animal (fish) tracking data collected by what later became the Permanent Belgian Acoustic Receiver Network (https://lifewatch.be/en/fish-acoustic-receiver-network) for the project/study 2011_rivierprik, using VEMCO tags (V7, V8) and receivers (VR2, VR2W). In total 39 adult individuals of river lamprey (Lampetra fluviatilis) were captured, tagged and released in 2011 and 2012, to study the effect of weirs and shipping locks on their upstream spawning migration in the tidal and/or non-tidal part of the Scheldt river and its tributaries.
The disruption of longitudinal and lateral connectivity of rivers has led to ecological catastrophes such as the extinction of several diadromous fish species. River lamprey is an important indicator species for the integrity of ecosystems and connectivity within and between catchment areas. In the highly fragmented Scheldt river basin first restoration actions are undertaken, such as the building of nature-like bypasses. The migration patterns in the river catchment and their behaviour at a tidal barrier, lock-weir complexes and fish bypasses (passage timing and delay) in the upper Scheldt river show that the disrupted water management of the river and in consequence of its barriers and bypasses are one keys to (un)successful spawning migration in the catchment, beside spawning habitat deterioration.
The study was commissioned by the Vlaamse Waterweg NV.
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (https://lifewatch.be/etn/) and are available in Buysse et al. (2020, https://doi.org/10.14284/429).
\n ","intellectualrights":"To the extent possible under law, the publisher has waived all rights to these data and has dedicated them to the Public Domain (CC0 1.0)","feed":{"id":"2b52ff52-bd4f-4800-97b6-882bc7698a22","url":"https://ipt.inbo.be/rss.do","website":"https://ipt.inbo.be","active":true},"institutes":[{"name":"Vlaamse Overheid - Instituut voor Natuur- en Bosonderzoek","oceanexpert_id":17039,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"David","surname":"Buysse","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Ans","surname":"Mouton","organization":"Research Institute for Nature and Forest 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(INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Yves","surname":"Jacobs","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Ine","surname":"Pauwels","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Lien","surname":"Reyserhove","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"creator","givenname":"Johan","surname":"Coeck","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"David","surname":"Buysse","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Peter","surname":"Desmet","organization":"Research Institute for Nature and Forest (INBO)","position":null,"email":"peter.desmet@inbo.be","url":null,"organization_oceanexpert_id":17039,"type_display":"Metadata Provider"}],"nodes":[{"id":"4bf79a01-65a9-4db6-b37b-18434f26ddfc","name":"EurOBIS"}],"keywords":[{"keyword":"Acoustic telemetry","thesaurus":"ASFA Thesaurus List"},{"keyword":"Spawning migrations","thesaurus":"ASFA Thesaurus List"},{"keyword":"Acoustic Telemetry","thesaurus":"ETN Context"},{"keyword":"animal movement","thesaurus":"n/a"},{"keyword":"animal tracking","thesaurus":"n/a"},{"keyword":"biologging","thesaurus":"n/a"},{"keyword":"impact assessment","thesaurus":"n/a"},{"keyword":"migration barriers","thesaurus":"n/a"},{"keyword":"river lamprey","thesaurus":"n/a"},{"keyword":"VEMCO","thesaurus":"n/a"},{"keyword":"Migration","thesaurus":"CSA Technology Research Database Master Thesaurus"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"}],"downloads":[{"year":2026,"downloads":122,"records":669029},{"year":2025,"downloads":2244,"records":12600146},{"year":2024,"downloads":942,"records":5303727}],"tags":null,"disable_extensions":null,"records":39},{"id":"78bf6b7f-555c-4bf7-8d81-a766c5bc736e","url":"https://members.oceantrack.org/ipt/resource?r=otndalnsbluesharktracking","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndalnsbluesharktracking","published":"2025-11-05T20:58:06.000Z","created":"2019-02-20T16:22:13.000Z","updated":"2025-11-06T01:21:21.482Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":9383,"absence":0,"dropped":0,"Occurrence":7458,"DNADerivedData":0,"MeasurementOrFact":566},"extent":"POLYGON((-73.7604 40.4593,-58.72768 40.4593,-58.72768 48.8537,-73.7604 48.8537,-73.7604 40.4593))","title":"OTN NS Blue Shark Tracking","citation":"Whoriskey, F., Davis, B. 2013. Ocean Tracking Network Nova Scotia Blue Shark Tracking. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/i96vq0","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Dalhousie University (DAL) OTN NS Blue Shark Tracking, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NSBS).\nAbstract:In the Northwest Atlantic, the Ocean Tracking Network (OTN), in collaboration with Dalhousie University, is using an acoustic telemetry infrastructure to monitor the habitat use, movements, and survival of juvenile blue sharks (Prionace glauca). This infrastructure includes state-of-the-art acoustic receivers and oceanographic monitoring equipment, and autonomous marine vehicles carrying oceanographic sensors and mobile acoustic receivers. Long-life acoustic tags (n=40) implanted in the experimental animals will provide long-term spatial resolution of shark movements and distribution, trans-boundary migrations, site fidelity, and the species’ response to a changing ocean. This study will facilitate interspecific comparisons, documentation of intra- and interspecific interactions, and permit long-term monitoring of this understudied predator in the Northwest Atlantic. The study will also provide basic and necessary information to better inform fisheries managers and policy makers. This is pertinent given the recent formulation of the Canadian Plan of Action for Shark Conservation.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Dalhousie University","oceanexpert_id":5711,"oceanexpert_parent_id":null},{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null},{"name":"Fisheries and Oceans Canada","oceanexpert_id":19196,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking 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Canada","position":null,"email":"ryan.stanley@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":19196,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Kim","surname":"Émond","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"kim.emond@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":19196,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Brian","surname":"Gervelis","organization":"INSPIRE Environmental","position":null,"email":"brian@inspireenvironmental.com","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"William","surname":"Hoffman","organization":"Massachusetts Division of Marine Fisheries","position":null,"email":"bill.hoffman@mass.gov","url":null,"organization_oceanexpert_id":null,"type_display":"Content 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http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: 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48.8537,-73.7604 48.8537,-73.7604 40.4593))","title":"/ACADIA Minas Passage of the Bay of Fundy fish Acoustic Telemetry","citation":"Broome, J., Stokesbury, M., Redden, A., Bradford, R. 2009. 3-D Acoustic Tracking of Fish, Sediment-Laden Ice and Large Wood Debris in the Minas Passage of the Bay of Fundy.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":"https://doi.org/10.14286/y8m8ct","abstract":"This is the OBIS extraction of the Ocean Tracking Network and Acadia University (Acadia U) /ACADIA Minas Passage of the Bay of Fundy fish Acoustic Telemetry, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=NSP).\nAbstract:The first of three installations of in-stream tidal power infrastructure in the Minas Passage of the inner Bay of Fundy was deployed in November 2009. Little is known about the impact of turbine operation on the survival and behaviour of fishes moving through the Passage. To address the potential for fish-turbine interactions near the deployed OpenHydro turbine, we are using animal tracking technology developed by Vemco of Halifax, Nova Scotia, to track fish movement, behaviour and environmental preferences over a scale of kilometres. This project will provide real in-situ measurements of the direction, depth and velocity of tagged fishes moving through the Passage. Three species of concern will be tagged during 2010: Atlantic sturgeon, striped bass and American eels. Fishes tagged with acoustic transmitting tags will broadcast unique signals that will be archived by an array of acoustic hydrophone receivers in the Minas Passage. A dense array of receivers located at the OpenHydro turbine site will provide fine scale information on movements and behaviour of fish in relation to an operating tidal turbine. In addition a line of receivers spanning the Passage, placed in co-operation with OTN and Acadia University, will provide information on the spatial and temporal distribution and movement of fish in the Passage. To enhance the assessment of the risk to fishes of direct contact with the turbine, in situ data will be used to refine mathematical hydrodynamic models that predict how objects like fish move in the Passage and potentially interact with turbine infrastructure. This information will be valuable in identifying mitigation measures that may be taken to lessen any negative effects of in-stream turbine infrastructure on fish behaviour and survival.","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Dalhousie University","oceanexpert_id":5711,"oceanexpert_parent_id":null},{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null},{"name":"Fisheries and Oceans Canada","oceanexpert_id":19196,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data 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Trout","citation":"Halfyard, E.A., MacMillan, J. 2009. Assessing estuarine ecology of anadromous brook charr in the West River, Sheet Harbour.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"This is the OBIS extraction of the Ocean Tracking Network and Ocean Tracking Network (OTN) West River, Sheet Harbour, Brook Trout, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=ABC).\nAbstract:This project examined the estuarine migration, behaviour, habitat use and general ecology of brook charr while in estuarine and coastal habitats. This was a two year project (2009 & 2010) and ran concurrent to the West River Sheet Harbour Atlantic Salmon smolt tracking project (WRS).","intellectualrights":"This work is licensed under a Creative Commons Attribution (CC-BY) 4.0 License","feed":{"id":"484069ae-da92-43bc-835b-86ed774b95c6","url":"https://oceantrack.org/ipt/rss.do","website":"https://oceantrack.org/ipt","active":true},"institutes":[{"name":"Ocean Tracking Network","oceanexpert_id":18704,"oceanexpert_parent_id":null}],"contacts":[{"role":null,"type":"creator","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"https://members.oceantrack.org","organization_oceanexpert_id":null,"type_display":"Creator"},{"role":null,"type":"contact","givenname":"Ocean Tracking Network","surname":"Data Centre","organization":"Ocean Tracking Network","position":"Data Manager","email":"otndc@dal.ca","url":"http://members.oceantrack.org","organization_oceanexpert_id":18704,"type_display":"Contact"},{"role":null,"type":"metadataProvider","givenname":"Jonathan","surname":"Pye","organization":"Ocean Tracking Network","position":"Data Manager","email":"jonathan.pye@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Metadata Provider"},{"role":"principalInvestigator","type":"associatedParty","givenname":"Eddie","surname":"Halfyard","organization":"Ocean Tracking Network","position":null,"email":"eahalfyard@hotmail.com","url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"},{"role":"contentProvider","type":"associatedParty","givenname":"John","surname":"MacMillan","organization":"Government of Nova Scotia","position":null,"email":"macmiljl@gov.ns.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Aaron","surname":"Spares","organization":"Dalhousie University","position":null,"email":"ar592287@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Eddie","surname":"Halfyard","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Observation","thesaurus":"GBIF Dataset Subtype Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":197,"records":728610},{"year":2025,"downloads":2394,"records":9192134},{"year":2024,"downloads":3222,"records":12454731},{"year":2023,"downloads":2430,"records":2875090},{"year":2022,"downloads":1742,"records":56208},{"year":2021,"downloads":191,"records":6112}],"tags":null,"disable_extensions":null,"records":32},{"id":"d5d038ac-e400-4381-8283-a0ef9efa9dae","url":"https://members.oceantrack.org/ipt/resource?r=otndfo-bioscotianshelfsno","archive":"https://members.oceantrack.org/ipt/archive.do?r=otndfo-bioscotianshelfsno","published":"2026-06-15T18:33:32.000Z","created":"2023-09-23T01:32:43.231Z","updated":"2026-06-15T22:26:14.603Z","core":"event","extensions":["measurementorfact","occurrence"],"statistics":{"Event":26645,"absence":0,"dropped":0,"Occurrence":25991,"DNADerivedData":0,"MeasurementOrFact":1502},"extent":"POLYGON((-87.1041 30.07407,-59.08555 30.07407,-59.08555 49.29557,-87.1041 49.29557,-87.1041 30.07407))","title":"Scotian Shelf Snow Crab Tagging","citation":"Zisserson, B., Choi, J., Cook, A., Cameron, B. 2013. Scotian Shelf snow crab tagging.. Accessed via the Ocean Tracking Network OBIS IPT on INSERT DATE","citation_id":null,"abstract":"\nThis is the OBIS extraction of the Ocean Tracking Network and Department of Fisheries and Oceans Canada (DFO) Scotian Shelf Snow Crab Tagging, consisting of the release tagging metadata, i.e. the location and date when the tagged animal was released, and summarized detection events of tagged individuals.\n If readers are interested in the source dataset they may also inquire with the project PIs as listed here or on the OTN web site (https://members.oceantrack.org/project?ccode=ZSC).\n
Abstract:The snow crab (Chionoecetes opilio) is the third most important fishery species in terms of landing value in Nova Scotia. Based on fishery landings, snow crabs are thought to segregate by sex and size. The species is migratory, based on the seasonal disappearance and reappearance of crabs in different geographical areas, and limited tagging studies that have been conducted to date. However, the tagging studies necessary to document the scale and scope of such migrations have not yet been conducted. Information about the migratory movements of the species will be very important to managers as they determine quotas for fisheries in the different crab fishing zones (geographical management areas). At present, snow crab movements are too poorly understood to assist in developing management regimes for the species. This project involves the tagging and release of snow crab onto the Scotian Shelf by the Department of Fisheries and Oceans along with subsequent deployments of acoustic receivers in order to track their movements. Additional receivers have been deployed in the area through collaboration with industrial partners. Tagging has occurred in several areas off Cape Breton, Halifax and within St. Anne's Bank MPA.
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Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Robert","surname":"Lennox","organization":"Dalhousie University","position":null,"email":"robert.lennox@dal.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"contentProvider","type":"associatedParty","givenname":"Harri","surname":"Pettitt-Wade","organization":"Department of Fisheries and Oceans Canada","position":null,"email":"harri.pettitt-wade@dfo-mpo.gc.ca","url":null,"organization_oceanexpert_id":null,"type_display":"Content Provider"},{"role":"principalInvestigator","type":"personnel","givenname":"Brent","surname":"Cameron","organization":null,"position":null,"email":null,"url":null,"organization_oceanexpert_id":null,"type_display":"Principal Investigator"}],"nodes":[{"id":"68f83ea7-69a7-44fd-be77-3c3afd6f3cf8","name":"OTN-OBIS"}],"keywords":[{"keyword":"ACOUSTIC TAGS","thesaurus":"n/a"},{"keyword":"EARTH SCIENCE > BIOLOGICAL CLASSIFICATION > ANIMALS/VERTEBRATES > FISH","thesaurus":"Global Change Master Directory (GCMD)"},{"keyword":"Occurrence","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type.xml"},{"keyword":"Samplingevent","thesaurus":"GBIF Dataset Type Vocabulary: http://rs.gbif.org/vocabulary/gbif/dataset_type_2015-07-10.xml"}],"downloads":[{"year":2026,"downloads":222,"records":4062744},{"year":2025,"downloads":2427,"records":61087830},{"year":2024,"downloads":3278,"records":82874192},{"year":2023,"downloads":707,"records":18318056}],"tags":null,"disable_extensions":null,"records":27},{"id":"64e038e6-795c-418e-b617-7c81e4dcb293","url":"https://ipt.inbo.be/resource?r=2015_dijle","archive":"https://ipt.inbo.be/archive.do?r=2015_dijle","published":"2026-06-08T14:21:49.000Z","created":"2024-09-25T09:15:27.679Z","updated":"2026-06-08T14:28:53.202Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":0,"Occurrence":9953,"DNADerivedData":0,"MeasurementOrFact":78},"extent":"POLYGON((2.78573 50.970103,4.72155 50.970103,4.72155 51.64202,2.78573 51.64202,2.78573 50.970103))","title":"2015_DIJLE - Acoustic telemetry data for five fish species in the Dijle river (Belgium)","citation":"Vermeersch S, Pauwels I, Baeyens R, De Maerteleire N, Desmet P, Gelaude E, Milotic T, Pieters S, Reyserhove L, Robberechts K, Verhelst P, Coeck J (2026). 2015_DIJLE - Acoustic telemetry data for five fish species in the Dijle river (Belgium). Version 1.3. Research Institute for Nature and Forest (INBO). Occurrence dataset. https://doi.org/10.14284/430","citation_id":"https://doi.org/10.14284/430","abstract":"\nThis is an acoustic telemetry dataset published by the Research Institute for Nature and Forest (INBO). It contains animal (fish) tracking data collected by the Permanent Belgian Acoustic Receiver Network (https://lifewatch.be/en/fish-acoustic-receiver-network) for the project/study 2015_dijle, using VEMCO tags (V7, V13) and receivers (VR2AR, VR2W). In total 26 adult individuals of five local wild fish species (Anguilla anguilla, Cyprinus carpio, Platichthys flesus, Rutilus rutilus, Silurus glanis) were captured, tagged and released in 2015, to study the effect of a specific barrier on their upstream/downstream migration in the Dijle basin.
Fish migrating from the sea to the Dijle river (or vice versa) are obstructed by a weir in the city of Mechelen which is designed to prevent tides from entering further inland. To mitigate this problem, fish-friendly weir management was implemented, the effect of which was measured in this study with acoustic telemetry. In 2015, 26 individuals of five fish species - European eel (Anguilla anguilla), common carp (Cyprinus carpio), flounder (Platichthys flesus), roach (Rutilus rutilus) and wels catfish (Silurus glanis) - were captured, tagged and tracked in the areas up- and downstream of the weir. 3 wels catfish tagged for the 2014_demer study were also detected. Results of the evaluated weir passages by fish showed that 21 of 29 fish were able to pass the weir at specific hydrological conditions and weir management options. The number of passages differed between species, but happened always in the periods that higher passage could be expected following their lifestyle. The study indicates the importance and benefits of a fish-friendly weir management.
This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch. The study was commissioned by the Vlaamse Waterweg NV.
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (https://lifewatch.be/etn/) and are available in Vermeersch et al. (2020, https://doi.org/10.14284/430).
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http://rs.gbif.org/vocabulary/gbif/dataset_subtype.xml"}],"downloads":[{"year":2026,"downloads":503,"records":1766111},{"year":2025,"downloads":2612,"records":23312541},{"year":2024,"downloads":1011,"records":9615095}],"tags":null,"disable_extensions":null,"records":26},{"id":"17e661a3-9078-494d-9135-2e73ec11328d","url":"https://ipt.vliz.be/eurobis/resource?r=2014_nene","archive":"https://ipt.vliz.be/eurobis/archive.do?r=2014_nene","published":"2026-06-08T15:49:45.000Z","created":"2026-04-30T13:40:58.830Z","updated":"2026-06-08T21:41:10.282Z","core":"occurrence","extensions":["measurementorfact"],"statistics":{"Event":0,"absence":0,"dropped":0,"Occurrence":506,"DNADerivedData":0,"MeasurementOrFact":57},"extent":"POLYGON((-0.462327 52.501359,0.213339 52.501359,0.213339 52.807336,-0.462327 52.807336,-0.462327 52.501359))","title":"2014_Nene: Downstream migration of silver eel Anguilla anguilla in the River Nene in 2014","citation":"Reeds J, Carter L, Bolland J (2026). 2014_Nene: Downstream migration of silver eel Anguilla anguilla in the River Nene in 2014. Version 1.2. Flanders Marine Institute. Occurrence dataset. https://doi.org/10.14284/732","citation_id":"https://doi.org/10.14284/732","abstract":"\nThere is a paucity of data to assess escapement rates of silver eel from Anglian Northern Rivers. Since eel regulations were introduced in 2007 technology has improved to assist with gaining estimates of this. The River Nene holds a significant eel population; it is also one of the most modified and heavily regulated rivers in the UK. By assessing silver eel migration down the Nene system and subsequent escapement to the North Sea important information on the rivers capability to produce silver eels that are capable of contributing to the spawning stock can be discerned. This will feed back into local and national eel management plans when targeting future eel habitat improvement schemes. Eels used in this study were captured, tagged and released to complete their downstream journey. They were tracked using remote telemetry sensors at set locations at in-river structures.
This is an acoustic telemetry dataset containing animal (fish) tracking data collected for the project 2014_Nene. In total 19 individuals of Anguilla anguilla in their silver eel stage were captured, tagged and released in late 2014. Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network Data Platform (https://lifewatch.be/etn/).
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Longitudinal and lateral connectivity of rivers is necessary for fish to successfully fulfill their life cycle. In Flanders, fish are obstructed in their essential free migrations by weirs, sluices, mills, and pumping stations, which are needed to control the water level. The Demer river drains the eastern part of the Scheldt basin. Fish migrating from the sea to the Demer river are obstructed by three hydraulic constructions. In this study we aimed to evaluate the possibilities for fish migration around the most upstream of these three constructions, the Grote Steunbeer in the city of Diest. Therefore, behaviour of two sea lamprey (Petromyzon marinus), two roach (Rutilus rutilus), nine Wels catfish (Silurus glanis) and three chub (Squalius cephalus) was investigated by acoustic telemetry in the areas up-, downstream and around the fish migration barrier. The results indicated that free upstream fish migration in the Demer river is obstructed by the Grote Steunbeer barrier in its current state, and that adaptations to this barrier should get priority as the tributary of the Zwarte beek only partly offers an alternative route for fish to qualitative spawning habitats upstream.
This dataset was collected using infrastructure provided by VLIZ and INBO funded by the Research Foundation - Flanders (FWO) as part of the Belgian contribution to LifeWatch. The study was commissioned by the Flemish Environment Agency (VMM).
Data have been standardized to Darwin Core using the etn package and are downsampled to the first detection per hour. The original data are managed in the European Tracking Network data platform (https://lifewatch.be/etn/) and are available in Pauwels et al. (2020, https://doi.org/10.14284/432).
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