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dc.contributor.authorO'Sullivan, Ronan James
dc.contributor.authorOzerov, Mikhail
dc.contributor.authorBolstad, Geir Hysing
dc.contributor.authorGilbey, John
dc.contributor.authorJacobsen, Jan Arge
dc.contributor.authorErkinaro, Jaakko
dc.contributor.authorRikardsen, Audun H.
dc.contributor.authorHindar, Kjetil
dc.contributor.authorAykanat, Tutku
dc.date.accessioned2022-10-20T07:07:45Z
dc.date.available2022-10-20T07:07:45Z
dc.date.issued2022-10-18
dc.description.abstractWhile it is known that the oceans around the Faroe Islands support an Atlantic salmon (Salmo salar) feeding ground, the relative use of this resource by different age classes and populations remains largely unexplored. Using genetic stock identification and run–reconstruction modelling, we observed a consistent pattern whereby the proportion of multi-sea winter salmon (MSW—fish that have spent multiple winters at sea) for a reporting group was substantially greater around the Faroes than the MSW proportion among that group’s corresponding pre-fisheries abundance. Surprisingly, MSW fish from Ireland and the United Kingdom were as likely to occur around the Faroes as were MSW fish from more north-eastern regions. While 1SW salmon (single sea-winter fish) from Ireland and the United Kingdom as well as Southern Norway occurred in similar proportions around the Faroes, 1SW fish from the north-eastern regions were virtually absent. Our results indicate that the oceans around the Faroes host a predominantly MSW feeding ground and use of this resource varies across age classes and reporting groups. Furthermore, these results suggest that MSW fish from some reporting groups preferentially migrate to the Faroes. Variation in spatial resource use may help buffer salmon populations against localized negative changes in marine conditions via portfolio effects. Keywords: age class structure, Faroe Islands, migration, phenotypic diversity, Salmo salar, spatial variation in resource use.en_US
dc.identifier.citationO'Sullivan, Ozerov M, Bolstad GH, Gilbey J, Jacobsen JA, Erkinaro J, Rikardsen A, Hindar K, Aykanat T. Genetic stock identification reveals greater use of an oceanic feeding ground around the Faroe Islands by multi-sea winter Atlantic salmon, with variation in use across reporting groups. ICES Journal of Marine Science. 2022en_US
dc.identifier.cristinIDFRIDAID 2062736
dc.identifier.doi10.1093/icesjms/fsac182
dc.identifier.issn1054-3139
dc.identifier.issn1095-9289
dc.identifier.urihttps://hdl.handle.net/10037/27091
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.subjectVDP::Matematikk og naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural scienses: 400::Zoology and botany: 480en_US
dc.titleGenetic stock identification reveals greater use of an oceanic feeding ground around the Faroe Islands by multi-sea winter Atlantic salmon, with variation in use across reporting groupsen_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)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)