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 gain ins...
Published in: | ICES Journal of Marine Science |
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Oxford University Press
2022
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Online Access: | https://hdl.handle.net/10037/27852 https://doi.org/10.1093/icesjms/fsac127 |
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ftunivtroemsoe:oai:munin.uit.no:10037/27852 2023-05-15T14:57:12+02:00 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 Halldor Barkley, Amanda Estevez-Barcia, Daniel Nygaard, Rasmus Healey, Brian Steingrund, Petur Johansen, Torild Albert, Ole Thomas Boje, Jesper 2022-07-18 https://hdl.handle.net/10037/27852 https://doi.org/10.1093/icesjms/fsac127 eng eng Oxford University Press ICES Journal of Marine Science Vihtakari, Elvarsson, Treble, Nogueira, Hedges, Hussey, Wheeland, Roy, Ofstad, Hallfredsson, Barkley, Estevez-Barcia, Nygaard, Healey, Steingrund, Johansen, Albert, Boje. Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset. ICES Journal of Marine Science. 2022;79(6):1902-1917 FRIDAID 2093833 doi:10.1093/icesjms/fsac127 1054-3139 1095-9289 https://hdl.handle.net/10037/27852 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 CC-BY Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1093/icesjms/fsac127 2022-12-22T00:02:49Z 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 <50 cm body length migrate at higher 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. Article in Journal/Newspaper Arctic Baffin Bay Baffin Bay Baffin Davis Strait Greenland Kara Sea Newfoundland North Atlantic Northeast Atlantic Northwest Atlantic University of Tromsø: Munin Open Research Archive Arctic Newfoundland Kara Sea Baffin Bay Greenland ICES Journal of Marine Science 79 6 1902 1917 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
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 <50 cm body length migrate at higher 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 |
Article in Journal/Newspaper |
author |
Vihtakari, Mikko Elvarsson, Bjarki Pór Treble, Margaret Nogueira, Adriana Hedges, Kevin Hussey, Nigel E. Wheeland, Laura Roy, Denis Ofstad, Lise Helen Hallfredsson, Elvar Halldor Barkley, Amanda Estevez-Barcia, Daniel Nygaard, Rasmus Healey, Brian Steingrund, Petur Johansen, Torild Albert, Ole Thomas Boje, Jesper |
spellingShingle |
Vihtakari, Mikko Elvarsson, Bjarki Pór Treble, Margaret Nogueira, Adriana Hedges, Kevin Hussey, Nigel E. Wheeland, Laura Roy, Denis Ofstad, Lise Helen Hallfredsson, Elvar Halldor 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 |
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 Halldor 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 |
Oxford University Press |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/27852 https://doi.org/10.1093/icesjms/fsac127 |
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_relation |
ICES Journal of Marine Science Vihtakari, Elvarsson, Treble, Nogueira, Hedges, Hussey, Wheeland, Roy, Ofstad, Hallfredsson, Barkley, Estevez-Barcia, Nygaard, Healey, Steingrund, Johansen, Albert, Boje. Migration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataset. ICES Journal of Marine Science. 2022;79(6):1902-1917 FRIDAID 2093833 doi:10.1093/icesjms/fsac127 1054-3139 1095-9289 https://hdl.handle.net/10037/27852 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2022 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
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_ |
1766329286726254592 |