Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic
Recently, there have been reports of increased abundance and landings of European hake in the northern part of the species range. Biological studies are however scarce and information about finer scale population structure important for stock assessments and fishery management is largely lacking. He...
Published in: | ICES Journal of Marine Science |
---|---|
Main Authors: | , , , , , , , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Oxford University Press (OUP)
2017
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1093/icesjms/fsw249 http://academic.oup.com/icesjms/article-pdf/74/5/1300/31244951/fsw249.pdf |
id |
croxfordunivpr:10.1093/icesjms/fsw249 |
---|---|
record_format |
openpolar |
spelling |
croxfordunivpr:10.1093/icesjms/fsw249 2024-06-09T07:48:29+00:00 Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic Westgaard, Jon-Ivar Staby, Arved Aanestad Godiksen, Jane Geffen, Audrey J. Svensson, Anders Charrier, Gregory Svedäng, Henrik André, Carl Grant, Stewart 2017 http://dx.doi.org/10.1093/icesjms/fsw249 http://academic.oup.com/icesjms/article-pdf/74/5/1300/31244951/fsw249.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 74, issue 5, page 1300-1310 ISSN 1054-3139 1095-9289 journal-article 2017 croxfordunivpr https://doi.org/10.1093/icesjms/fsw249 2024-05-10T13:16:42Z Recently, there have been reports of increased abundance and landings of European hake in the northern part of the species range. Biological studies are however scarce and information about finer scale population structure important for stock assessments and fishery management is largely lacking. Here, we report on a population genetic study using neutral and outlier SNP loci assessing population structure in hake in the north-eastern parts of its range in the Atlantic. Hake samples from localities along the west coast of Norway, the Kattegat, the northern North Sea, and one locality in the Bay of Biscay were analysed using 53 SNPs, six of which were outliers potentially influenced by natural selection. We detected small-scale structure among northern samples, all of which were also distinct from Bay of Biscay hake, with the exception of a few individuals from the North Sea and the coast of Norway who clustered genetically together with Bay of Biscay hake. Our findings suggest that the present management unit of a single northern stock of hake is not biologically correct, and that there is more detail in the fine-scale population structure indicating that independent population dynamics could be expected in response to fishing patterns or changing environmental conditions. Article in Journal/Newspaper Northeast Atlantic Oxford University Press Hake ENVELOPE(15.612,15.612,66.797,66.797) Kattegat ENVELOPE(9.692,9.692,63.563,63.563) Norway ICES Journal of Marine Science 74 5 1300 1310 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Recently, there have been reports of increased abundance and landings of European hake in the northern part of the species range. Biological studies are however scarce and information about finer scale population structure important for stock assessments and fishery management is largely lacking. Here, we report on a population genetic study using neutral and outlier SNP loci assessing population structure in hake in the north-eastern parts of its range in the Atlantic. Hake samples from localities along the west coast of Norway, the Kattegat, the northern North Sea, and one locality in the Bay of Biscay were analysed using 53 SNPs, six of which were outliers potentially influenced by natural selection. We detected small-scale structure among northern samples, all of which were also distinct from Bay of Biscay hake, with the exception of a few individuals from the North Sea and the coast of Norway who clustered genetically together with Bay of Biscay hake. Our findings suggest that the present management unit of a single northern stock of hake is not biologically correct, and that there is more detail in the fine-scale population structure indicating that independent population dynamics could be expected in response to fishing patterns or changing environmental conditions. |
author2 |
Grant, Stewart |
format |
Article in Journal/Newspaper |
author |
Westgaard, Jon-Ivar Staby, Arved Aanestad Godiksen, Jane Geffen, Audrey J. Svensson, Anders Charrier, Gregory Svedäng, Henrik André, Carl |
spellingShingle |
Westgaard, Jon-Ivar Staby, Arved Aanestad Godiksen, Jane Geffen, Audrey J. Svensson, Anders Charrier, Gregory Svedäng, Henrik André, Carl Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic |
author_facet |
Westgaard, Jon-Ivar Staby, Arved Aanestad Godiksen, Jane Geffen, Audrey J. Svensson, Anders Charrier, Gregory Svedäng, Henrik André, Carl |
author_sort |
Westgaard, Jon-Ivar |
title |
Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic |
title_short |
Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic |
title_full |
Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic |
title_fullStr |
Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic |
title_full_unstemmed |
Large and fine scale population structure in European hake (Merluccius merluccius) in the Northeast Atlantic |
title_sort |
large and fine scale population structure in european hake (merluccius merluccius) in the northeast atlantic |
publisher |
Oxford University Press (OUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1093/icesjms/fsw249 http://academic.oup.com/icesjms/article-pdf/74/5/1300/31244951/fsw249.pdf |
long_lat |
ENVELOPE(15.612,15.612,66.797,66.797) ENVELOPE(9.692,9.692,63.563,63.563) |
geographic |
Hake Kattegat Norway |
geographic_facet |
Hake Kattegat Norway |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
ICES Journal of Marine Science volume 74, issue 5, page 1300-1310 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsw249 |
container_title |
ICES Journal of Marine Science |
container_volume |
74 |
container_issue |
5 |
container_start_page |
1300 |
op_container_end_page |
1310 |
_version_ |
1801380244231290880 |