Journal article
Stock structure of Atlantic herring Clupea harengus in the Norwegian Sea and adjacent waters
Marine Research Institute Reykjavik1
Institute of Marine Research2
Icelandic Food Research3
University of Iceland4
Faroe Marine Research Institute5
University of the Faroe Islands6
Division of Industrial Food Research, National Food Institute, Technical University of Denmark7
National Food Institute, Technical University of Denmark8
Síldarvinnslan hf9
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.
Language: | English |
---|---|
Publisher: | Inter-Research |
Year: | 2015 |
Pages: | 219-230 |
ISSN: | 16161599 and 01718630 |
Types: | Journal article |
DOI: | 10.3354/meps11114 |