“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod
Abstract With the decline of many of the world’s fisheries, increased regulation, including marine protected areas (MPA), forms an increasingly important role in promoting sustainable resource use. Here, we present a novel “real-time” genetic monitoring programme used to protect the depleted Norwegi...
Published in: | ICES Journal of Marine Science |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Oxford University Press (OUP)
2017
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsx224 http://academic.oup.com/icesjms/article-pdf/75/3/1093/31236946/fsx224.pdf |
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croxfordunivpr:10.1093/icesjms/fsx224 2024-06-09T07:42:45+00:00 “Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod Johansen, Torild Westgaard, Jon-Ivar Seliussen, Bjørghild B Nedreaas, Kjell Dahle, Geir Glover, Kevin A Kvalsund, Roger Aglen, Asgeir Grant, Stewart 2017 http://dx.doi.org/10.1093/icesjms/fsx224 http://academic.oup.com/icesjms/article-pdf/75/3/1093/31236946/fsx224.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by/4.0/ ICES Journal of Marine Science volume 75, issue 3, page 1093-1104 ISSN 1054-3139 1095-9289 journal-article 2017 croxfordunivpr https://doi.org/10.1093/icesjms/fsx224 2024-05-10T13:14:23Z Abstract With the decline of many of the world’s fisheries, increased regulation, including marine protected areas (MPA), forms an increasingly important role in promoting sustainable resource use. Here, we present a novel “real-time” genetic monitoring programme used to protect the depleted Norwegian coastal cod stock (NCC) in an MPA during the spawning season, while a fishery targeted at the sustainable Northeast Arctic cod stock (NEAC) operates immediately outside. In the period 2009–2016, >6800 cod from the fishery were genotyped with the PanI locus that is discriminatory between these two stocks. The estimated fraction of NEAC increased during the study period until 2014; however, it did not exceed 70% for any sustained period. Therefore, the MPA remained closed for commercial harvest. Genetic analysis of eggs revealed a distinctly lower fraction of NEAC than in the catch from the adult stock, both immediately outside and within the MPA itself. We suggest that this discrepancy is likely to reflect differences in spawning areas used by NCC and NEAC. Estimated fractions of NEAC/NCC using PanI, otolith classification, and 39 single nucleotide polymorphisms were similar, thus validating the use of PanI to estimate NEAC/NCC composition. Article in Journal/Newspaper Arctic cod Arctic atlantic cod Northeast Arctic cod Oxford University Press Arctic ICES Journal of Marine Science 75 3 1093 1104 |
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Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract With the decline of many of the world’s fisheries, increased regulation, including marine protected areas (MPA), forms an increasingly important role in promoting sustainable resource use. Here, we present a novel “real-time” genetic monitoring programme used to protect the depleted Norwegian coastal cod stock (NCC) in an MPA during the spawning season, while a fishery targeted at the sustainable Northeast Arctic cod stock (NEAC) operates immediately outside. In the period 2009–2016, >6800 cod from the fishery were genotyped with the PanI locus that is discriminatory between these two stocks. The estimated fraction of NEAC increased during the study period until 2014; however, it did not exceed 70% for any sustained period. Therefore, the MPA remained closed for commercial harvest. Genetic analysis of eggs revealed a distinctly lower fraction of NEAC than in the catch from the adult stock, both immediately outside and within the MPA itself. We suggest that this discrepancy is likely to reflect differences in spawning areas used by NCC and NEAC. Estimated fractions of NEAC/NCC using PanI, otolith classification, and 39 single nucleotide polymorphisms were similar, thus validating the use of PanI to estimate NEAC/NCC composition. |
author2 |
Grant, Stewart |
format |
Article in Journal/Newspaper |
author |
Johansen, Torild Westgaard, Jon-Ivar Seliussen, Bjørghild B Nedreaas, Kjell Dahle, Geir Glover, Kevin A Kvalsund, Roger Aglen, Asgeir |
spellingShingle |
Johansen, Torild Westgaard, Jon-Ivar Seliussen, Bjørghild B Nedreaas, Kjell Dahle, Geir Glover, Kevin A Kvalsund, Roger Aglen, Asgeir “Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod |
author_facet |
Johansen, Torild Westgaard, Jon-Ivar Seliussen, Bjørghild B Nedreaas, Kjell Dahle, Geir Glover, Kevin A Kvalsund, Roger Aglen, Asgeir |
author_sort |
Johansen, Torild |
title |
“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod |
title_short |
“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod |
title_full |
“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod |
title_fullStr |
“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod |
title_full_unstemmed |
“Real-time” genetic monitoring of a commercial fishery on the doorstep of an MPA reveals unique insights into the interaction between coastal and migratory forms of the Atlantic cod |
title_sort |
“real-time” genetic monitoring of a commercial fishery on the doorstep of an mpa reveals unique insights into the interaction between coastal and migratory forms of the atlantic cod |
publisher |
Oxford University Press (OUP) |
publishDate |
2017 |
url |
http://dx.doi.org/10.1093/icesjms/fsx224 http://academic.oup.com/icesjms/article-pdf/75/3/1093/31236946/fsx224.pdf |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic cod Arctic atlantic cod Northeast Arctic cod |
genre_facet |
Arctic cod Arctic atlantic cod Northeast Arctic cod |
op_source |
ICES Journal of Marine Science volume 75, issue 3, page 1093-1104 ISSN 1054-3139 1095-9289 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/icesjms/fsx224 |
container_title |
ICES Journal of Marine Science |
container_volume |
75 |
container_issue |
3 |
container_start_page |
1093 |
op_container_end_page |
1104 |
_version_ |
1801371473085988864 |