Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice
The ling, Molva molva , is a commercially exploited demersal gadid fish distributed throughout the Northeast Atlantic. Here, we provide the first study of population genetic structure by genotyping 6 geographically distinct samples with 11 microsatellite DNA markers. The results rejected the hypothe...
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fthighwire:oai:open-archive.highwire.org:icesjms:72/2/635 2023-05-15T16:49:45+02:00 Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice Blanco Gonzalez, Enrique Knutsen, Halvor Jorde, Per Erik Glover, Kevin Alan Bergstad, Odd Aksel 2015-01-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/72/2/635 https://doi.org/10.1093/icesjms/fsu135 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/72/2/635 http://dx.doi.org/10.1093/icesjms/fsu135 Copyright (C) 2015, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer Original Articles TEXT 2015 fthighwire https://doi.org/10.1093/icesjms/fsu135 2015-02-28T22:17:52Z The ling, Molva molva , is a commercially exploited demersal gadid fish distributed throughout the Northeast Atlantic. Here, we provide the first study of population genetic structure by genotyping 6 geographically distinct samples with 11 microsatellite DNA markers. The results rejected the hypothesis of a single ling stock in the Northeast Atlantic, and rather suggested the existence of two or more groups, with the main grouping represented by a western (comprising Rockall and Iceland) and an eastern group (Faroe Bank, Norway). Significant genetic differences coincide with an expanse of deep water that probably limits connectivity facilitated by migration. Retention in gyres and directional oceanic circulation may also prevent drift and admixture during planktonic life stages. On the other hand, the apparent absence of genetic differentiation within the eastern part of the distribution range indicates gene flow, perhaps by larval drift and migration, over considerable distances. Our findings should contribute to improving stock assessments and monitoring and thus fisheries management advice for the ling. Text Iceland Northeast Atlantic HighWire Press (Stanford University) Norway Faroe Bank ENVELOPE(-8.667,-8.667,60.917,60.917) ICES Journal of Marine Science 72 2 635 641 |
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HighWire Press (Stanford University) |
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English |
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Original Articles |
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Original Articles Blanco Gonzalez, Enrique Knutsen, Halvor Jorde, Per Erik Glover, Kevin Alan Bergstad, Odd Aksel Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice |
topic_facet |
Original Articles |
description |
The ling, Molva molva , is a commercially exploited demersal gadid fish distributed throughout the Northeast Atlantic. Here, we provide the first study of population genetic structure by genotyping 6 geographically distinct samples with 11 microsatellite DNA markers. The results rejected the hypothesis of a single ling stock in the Northeast Atlantic, and rather suggested the existence of two or more groups, with the main grouping represented by a western (comprising Rockall and Iceland) and an eastern group (Faroe Bank, Norway). Significant genetic differences coincide with an expanse of deep water that probably limits connectivity facilitated by migration. Retention in gyres and directional oceanic circulation may also prevent drift and admixture during planktonic life stages. On the other hand, the apparent absence of genetic differentiation within the eastern part of the distribution range indicates gene flow, perhaps by larval drift and migration, over considerable distances. Our findings should contribute to improving stock assessments and monitoring and thus fisheries management advice for the ling. |
format |
Text |
author |
Blanco Gonzalez, Enrique Knutsen, Halvor Jorde, Per Erik Glover, Kevin Alan Bergstad, Odd Aksel |
author_facet |
Blanco Gonzalez, Enrique Knutsen, Halvor Jorde, Per Erik Glover, Kevin Alan Bergstad, Odd Aksel |
author_sort |
Blanco Gonzalez, Enrique |
title |
Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice |
title_short |
Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice |
title_full |
Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice |
title_fullStr |
Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice |
title_full_unstemmed |
Genetic analyses of ling (Molva molva) in the Northeast Atlantic reveal patterns relevant to stock assessments and management advice |
title_sort |
genetic analyses of ling (molva molva) in the northeast atlantic reveal patterns relevant to stock assessments and management advice |
publisher |
Oxford University Press |
publishDate |
2015 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/72/2/635 https://doi.org/10.1093/icesjms/fsu135 |
long_lat |
ENVELOPE(-8.667,-8.667,60.917,60.917) |
geographic |
Norway Faroe Bank |
geographic_facet |
Norway Faroe Bank |
genre |
Iceland Northeast Atlantic |
genre_facet |
Iceland Northeast Atlantic |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/72/2/635 http://dx.doi.org/10.1093/icesjms/fsu135 |
op_rights |
Copyright (C) 2015, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsu135 |
container_title |
ICES Journal of Marine Science |
container_volume |
72 |
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2 |
container_start_page |
635 |
op_container_end_page |
641 |
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1766039943259357184 |