Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset
Marine fisheries are often allocated to stocks that reflect pragmatic considerations and may not represent the species' spatial population structure, increasing the risk of mismanagement and unsustainable harvesting. Here we compile mark-recapture data collected across the North Atlantic to gai...
Published in: | ICES Journal of Marine Science |
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Online Access: | https://scholar.uwindsor.ca/ibiopub/186 https://doi.org/10.1093/icesjms/fsac127 https://scholar.uwindsor.ca/context/ibiopub/article/1185/viewcontent/fsac127.pdf |
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ftunivwindsor:oai:scholar.uwindsor.ca:ibiopub-1185 2024-06-23T07:50:05+00:00 Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset Vihtakari, Mikko Elvarsson, Bjarki Pór Treble, Margaret Nogueira, Adriana Hedges, Kevin Hussey, Nigel E. Wheeland, Laura Roy, Denis Ofstad, Lise Helen Hallfredsson, Elvar H. Barkley, Amanda Estevez-Barcia, Daniel Nygaard, Rasmus Healey, Brian Steingrund, Petur Johansen, Torild Albert, Ole Thomas Boje, Jesper 2022-08-01T07:00:00Z application/pdf https://scholar.uwindsor.ca/ibiopub/186 https://doi.org/10.1093/icesjms/fsac127 https://scholar.uwindsor.ca/context/ibiopub/article/1185/viewcontent/fsac127.pdf unknown Scholarship at UWindsor https://scholar.uwindsor.ca/ibiopub/186 doi:10.1093/icesjms/fsac127 https://scholar.uwindsor.ca/context/ibiopub/article/1185/viewcontent/fsac127.pdf http://creativecommons.org/licenses/by/4.0/ Integrative Biology Publications biogeography distribution fisheries population structure Reinhardtius hippoglossoides tagging Integrative Biology text 2022 ftunivwindsor https://doi.org/10.1093/icesjms/fsac127 2024-06-04T14:21:51Z Marine fisheries are often allocated to stocks that reflect pragmatic considerations and may not represent the species' spatial population structure, increasing the risk of mismanagement and unsustainable harvesting. Here we compile mark-recapture data collected across the North Atlantic to gain insight into the spatial population structure of Greenland halibut (Reinhardtius hippoglossoides), an issue that has been unresolved for decades. The dataset contains 168130 fish tagged from 1952 to 2021, with 5466 (3.3%) recaptured individuals. Our results indicate that fish tagged at rates, suggesting that mark-recapture studies on adult individuals underestimate population-level migration rates. We find evidence for migrations across management units in the North Atlantic indicating two regional offshore populations: one in the Northeast Atlantic, where the West Nordic and Northeast Arctic stocks, currently managed separately, likely belong to a single population that spans from the Kara Sea to Southeast Greenland; and one in the Northwest Atlantic where migration was observed between the Newfoundland and Labrador stock and the Northwest Arctic stock in Davis Strait and Baffin Bay. Our findings indicate complex population structure with implications for international and domestic fisheries management of this long-lived species. Text Arctic Baffin Bay Baffin Bay Baffin Davis Strait Greenland Kara Sea Newfoundland North Atlantic Northeast Atlantic Northwest Atlantic University of Windsor, Ontario: Scholarship at UWindsor Arctic Newfoundland Kara Sea Baffin Bay Greenland ICES Journal of Marine Science 79 6 1902 1917 |
institution |
Open Polar |
collection |
University of Windsor, Ontario: Scholarship at UWindsor |
op_collection_id |
ftunivwindsor |
language |
unknown |
topic |
biogeography distribution fisheries population structure Reinhardtius hippoglossoides tagging Integrative Biology |
spellingShingle |
biogeography distribution fisheries population structure Reinhardtius hippoglossoides tagging Integrative Biology Vihtakari, Mikko Elvarsson, Bjarki Pór Treble, Margaret Nogueira, Adriana Hedges, Kevin Hussey, Nigel E. Wheeland, Laura Roy, Denis Ofstad, Lise Helen Hallfredsson, Elvar H. Barkley, Amanda Estevez-Barcia, Daniel Nygaard, Rasmus Healey, Brian Steingrund, Petur Johansen, Torild Albert, Ole Thomas Boje, Jesper Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset |
topic_facet |
biogeography distribution fisheries population structure Reinhardtius hippoglossoides tagging Integrative Biology |
description |
Marine fisheries are often allocated to stocks that reflect pragmatic considerations and may not represent the species' spatial population structure, increasing the risk of mismanagement and unsustainable harvesting. Here we compile mark-recapture data collected across the North Atlantic to gain insight into the spatial population structure of Greenland halibut (Reinhardtius hippoglossoides), an issue that has been unresolved for decades. The dataset contains 168130 fish tagged from 1952 to 2021, with 5466 (3.3%) recaptured individuals. Our results indicate that fish tagged at rates, suggesting that mark-recapture studies on adult individuals underestimate population-level migration rates. We find evidence for migrations across management units in the North Atlantic indicating two regional offshore populations: one in the Northeast Atlantic, where the West Nordic and Northeast Arctic stocks, currently managed separately, likely belong to a single population that spans from the Kara Sea to Southeast Greenland; and one in the Northwest Atlantic where migration was observed between the Newfoundland and Labrador stock and the Northwest Arctic stock in Davis Strait and Baffin Bay. Our findings indicate complex population structure with implications for international and domestic fisheries management of this long-lived species. |
format |
Text |
author |
Vihtakari, Mikko Elvarsson, Bjarki Pór Treble, Margaret Nogueira, Adriana Hedges, Kevin Hussey, Nigel E. Wheeland, Laura Roy, Denis Ofstad, Lise Helen Hallfredsson, Elvar H. Barkley, Amanda Estevez-Barcia, Daniel Nygaard, Rasmus Healey, Brian Steingrund, Petur Johansen, Torild Albert, Ole Thomas Boje, Jesper |
author_facet |
Vihtakari, Mikko Elvarsson, Bjarki Pór Treble, Margaret Nogueira, Adriana Hedges, Kevin Hussey, Nigel E. Wheeland, Laura Roy, Denis Ofstad, Lise Helen Hallfredsson, Elvar H. Barkley, Amanda Estevez-Barcia, Daniel Nygaard, Rasmus Healey, Brian Steingrund, Petur Johansen, Torild Albert, Ole Thomas Boje, Jesper |
author_sort |
Vihtakari, Mikko |
title |
Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset |
title_short |
Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset |
title_full |
Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset |
title_fullStr |
Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset |
title_full_unstemmed |
Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset |
title_sort |
migration patterns of greenland halibut in the north atlantic revealed by a compiled mark-recapture dataset |
publisher |
Scholarship at UWindsor |
publishDate |
2022 |
url |
https://scholar.uwindsor.ca/ibiopub/186 https://doi.org/10.1093/icesjms/fsac127 https://scholar.uwindsor.ca/context/ibiopub/article/1185/viewcontent/fsac127.pdf |
geographic |
Arctic Newfoundland Kara Sea Baffin Bay Greenland |
geographic_facet |
Arctic Newfoundland Kara Sea Baffin Bay Greenland |
genre |
Arctic Baffin Bay Baffin Bay Baffin Davis Strait Greenland Kara Sea Newfoundland North Atlantic Northeast Atlantic Northwest Atlantic |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Davis Strait Greenland Kara Sea Newfoundland North Atlantic Northeast Atlantic Northwest Atlantic |
op_source |
Integrative Biology Publications |
op_relation |
https://scholar.uwindsor.ca/ibiopub/186 doi:10.1093/icesjms/fsac127 https://scholar.uwindsor.ca/context/ibiopub/article/1185/viewcontent/fsac127.pdf |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsac127 |
container_title |
ICES Journal of Marine Science |
container_volume |
79 |
container_issue |
6 |
container_start_page |
1902 |
op_container_end_page |
1917 |
_version_ |
1802640843516936192 |