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dc.contributor.authorVihtakari, Mikko
dc.contributor.authorElvarsson, Bjarki Pór
dc.contributor.authorTreble, Margaret
dc.contributor.authorNogueira, Adriana
dc.contributor.authorHedges, Kevin
dc.contributor.authorHussey, Nigel E.
dc.contributor.authorWheeland, Laura
dc.contributor.authorRoy, Denis
dc.contributor.authorOfstad, Lise Helen
dc.contributor.authorHallfredsson, Elvar Halldor
dc.contributor.authorBarkley, Amanda
dc.contributor.authorEstevez-Barcia, Daniel
dc.contributor.authorNygaard, Rasmus
dc.contributor.authorHealey, Brian
dc.contributor.authorSteingrund, Petur
dc.contributor.authorJohansen, Torild
dc.contributor.authorAlbert, Ole Thomas
dc.contributor.authorBoje, Jesper
dc.date.accessioned2022-12-19T08:02:51Z
dc.date.available2022-12-19T08:02:51Z
dc.date.issued2022-07-18
dc.description.abstractMarine 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.en_US
dc.identifier.citationVihtakari, 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):1902-1917en_US
dc.identifier.cristinIDFRIDAID 2093833
dc.identifier.doi10.1093/icesjms/fsac127
dc.identifier.issn1054-3139
dc.identifier.issn1095-9289
dc.identifier.urihttps://hdl.handle.net/10037/27852
dc.language.isoengen_US
dc.publisherOxford University Pressen_US
dc.relation.journalICES Journal of Marine Science
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2022 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleMigration patterns of Greenland halibut in the North Atlantic revealed by a compiled mark-recapture dataseten_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)