Stock structure of Atlantic herring Clupea harengus in the Norwegian Sea and adjacent waters

The genetic structure of Atlantic herring Clupea harengus L. was investigated in its north-easterly distribution in the Norwegian Sea and adjacent waters, using 23 neutral and one non-neutral (Cpa111) microsatellite loci. Fish from the suspected 2 main populations-the Norwegian spring-spawning herri...

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Bibliographic Details
Published in:Marine Ecology Progress Series
Main Authors: Pampoulie, Christophe, Slotte, Aril, Oskarsson, Guomundur J., Helyar, Sarah J., Jonsson, Asbjorn, Olafsdottir, Guobjorg, Skirnisdottir, Sigurlaug, Libungan, Lisa Anne, Jacobsen, Jan Arge, Joensen, Horaldur, Nielsen, Henrik Hauch, Sigurosson, Sindri Karl, Danielsdottir, Anna Kristin
Format: Article in Journal/Newspaper
Language:English
Published: 2015
Subjects:
Atlantic herring
Norwegian Sea
Norwegian fjords
Microsatellite Ioci
Adaptatin
Gene flow
Online Access:https://orbit.dtu.dk/en/publications/6de71bbf-2c82-41f6-8e68-ad15fb77462e
https://doi.org/10.3354/meps11114
https://backend.orbit.dtu.dk/ws/files/107916456/m522p219.pdf
https://backend.orbit.dtu.dk/ws/files/107916457/m522p219_supp.pdf
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Summary:The genetic structure of Atlantic herring Clupea harengus L. was investigated in its north-easterly distribution in the Norwegian Sea and adjacent waters, using 23 neutral and one non-neutral (Cpa111) microsatellite loci. Fish from the suspected 2 main populations-the Norwegian spring-spawning herring (NSSH) and the Icelandic summer-spawning herring (ISSH)-were collected at spawning locations in their respective spawning seasons from 2009 to 2012. Samples were also collected from Norwegian autumn spawning locations, from different local Norwegian fjords such as the inner part of Trondheimsfjorden, Lindas pollene, Landvikvannet and Lusterfjorden, as well as from suspected Faroese spawning components. The observed level of genetic differentiation was significant but low (F-ST = 0.007) and mostly attributable to the differentiation of the local Norwegian fjord populations. The locus Cpa111, which was detected to putatively be under positive selection, exhibited the highest F-ST value (0.044). The observed genetic patterns were robust to exclusion of this locus. Landvikvannet herring was also genetically distinguishable from the 3 other fjord populations. In addition, the present study does not support genetic structuring among the ISSH and the NSSH.

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