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dc.contributor.authorWestgaard, Jon-Ivar
dc.contributor.authorJohansen, Torild
dc.contributor.authorSøvik, Guldborg
dc.date.accessioned2023-10-04T11:09:25Z
dc.date.available2023-10-04T11:09:25Z
dc.date.created2023-03-07T11:58:41Z
dc.date.issued2023
dc.identifier.citationICES Journal of Marine Science. 2023, 80 (4), 766-774.
dc.identifier.issn1054-3139
dc.identifier.urihttps://hdl.handle.net/11250/3094109
dc.description.abstractInvestigations of genetic stock structure sometimes reveal a mismatch between management units and biological units. In Scandinavian waters, Norway lobster (Nephrops norvegicus) is divided into two management units (the Skagerrak–Kattegat and the Norwegian Deep). We have tested the population genetic structure of Nephrops within this region using microsatellite DNA markers, and compared the structure with the present management units. Our study suggests no population genetic structure of Nephrops within the Skagerrak, Kattegat, and Norwegian Deep region, whereas a shallow genetic structure was detected on a larger geographical scale when comparing outgroup samples from Scotland and Iceland. We found indications of sex-biased dispersal as the overall genetic differences were larger for females. Ocean current patterns suggest that Nephrops stocks in the region may be connected by larval drift. The two areas differ in fishing pressure, monitoring, assessment, and regulations, which is an argument for maintaining the present two-areas management regime despite the evidence for one biological population.
dc.language.isoeng
dc.titleGenetic population structure in Norway lobster (Nephrops norvegicus): management regime under panmixia
dc.title.alternativeGenetic population structure in Norway lobster (Nephrops norvegicus): management regime under panmixia
dc.typePeer reviewed
dc.typeJournal article
dc.description.versionpublishedVersion
dc.source.pagenumber766-774
dc.source.volume80
dc.source.journalICES Journal of Marine Science
dc.source.issue4
dc.identifier.doi10.1093/icesjms/fsad009
dc.identifier.cristin2131900
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2


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