Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis
Information on stock identification and spatial stock structure provide a basis for understanding fish population dynamics and improving fisheries management. In this study otolith shape analysis was used to study the stock structure of blue whiting (Micromesistius poutassou) in the northeast Atlant...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Canadian Science Publishing
2016
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Online Access: | https://archimer.ifremer.fr/doc/00334/44508/44202.pdf https://doi.org/10.1139/cjfas-2015-0332 https://archimer.ifremer.fr/doc/00334/44508/ |
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ftarchimer:oai:archimer.ifremer.fr:44508 2023-05-15T17:41:14+02:00 Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis Mahe, Kelig Oudard, Clemence Mille, Tiphaine Keating, James P Gonçalves, Patricia Clausen, Lotte Worsøe Petursdottir, G Rasmussen, H Meland, E Mullins, E Pinnegar, Jk Hoines, A Trenkel, Verena 2016-02 application/pdf https://archimer.ifremer.fr/doc/00334/44508/44202.pdf https://doi.org/10.1139/cjfas-2015-0332 https://archimer.ifremer.fr/doc/00334/44508/ eng eng Canadian Science Publishing info:eu-repo/grantAgreement/EC/FP7/264933/EU//EURO-BASIN https://archimer.ifremer.fr/doc/00334/44508/44202.pdf doi:10.1139/cjfas-2015-0332 https://archimer.ifremer.fr/doc/00334/44508/ Published by NRC Research Press info:eu-repo/semantics/openAccess restricted use Canadian Journal of Fisheries and Aquatic Sciences (0706-652X) (Canadian Science Publishing), 2016-02 , Vol. 73 , N. 9 , P. 1363-1371 Micromesistius poutassou forme de l’otolithe descripteurs de Fourier discrimination de stock nord-est de l’Océan atlantique otolith shape Fourier descriptors stock discrimination northeast atlantic text Publication info:eu-repo/semantics/article 2016 ftarchimer https://doi.org/10.1139/cjfas-2015-0332 2021-09-23T20:28:27Z Information on stock identification and spatial stock structure provide a basis for understanding fish population dynamics and improving fisheries management. In this study otolith shape analysis was used to study the stock structure of blue whiting (Micromesistius poutassou) in the northeast Atlantic using 1693 samples from mature fish collected between 37°N and 75°N and 20°W and 25°E. The results indicated two stocks located north and south of ICES Divisions VIa and VIb (54°5 to 60°5 N, 4° to 11°W). The central area corresponds to the spawning area west of Scotland. Sampling year effects and misclassification in the linear discriminant analysis suggested exchanges between the northern and southern stocks. The results corroborate previous studies indicating a structuring of the blue whiting stock into two stocks, with some degree of mixing in the central overlap area. L’identification et la connaissance de la structuration spatiale de stocks sont essentielles pour étudier la dynamique des populations de poissons et ainsi gérer les pêcheries. Dans cette étude, la forme des otolithes a été employée pour comprendre la structuration des stocks des merlans bleus (Micromesistius poutassou) dans le nord-est de l’Océan Atlantique a` partir de 1693 poissons matures échantillonnés entre 37°N–75°N et 20°O–25°E. Les résultats indiquent la présence de deux stocks situés au nord et au sud, respectivement, des divisions VIa et VIb du CIEM (de 54°5N a` 60°5N, de 4°O a` 11°O). La zone centrale correspond a` la zone de frai a` l’ouest de l’Écosse. Les effets du facteur année d’échantillonnage et la mauvaise classification dans l’analyse linéaire discriminante suggère des échanges entre les composants nordique et méridionale. Ces résultats corroborent des études antérieures indiquant une structuration des merlans bleus en deux stocks avec un certain niveau de mélange dans la zone de chevauchement. Article in Journal/Newspaper Northeast Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Canadian Journal of Fisheries and Aquatic Sciences 73 9 1363 1371 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Micromesistius poutassou forme de l’otolithe descripteurs de Fourier discrimination de stock nord-est de l’Océan atlantique otolith shape Fourier descriptors stock discrimination northeast atlantic |
spellingShingle |
Micromesistius poutassou forme de l’otolithe descripteurs de Fourier discrimination de stock nord-est de l’Océan atlantique otolith shape Fourier descriptors stock discrimination northeast atlantic Mahe, Kelig Oudard, Clemence Mille, Tiphaine Keating, James P Gonçalves, Patricia Clausen, Lotte Worsøe Petursdottir, G Rasmussen, H Meland, E Mullins, E Pinnegar, Jk Hoines, A Trenkel, Verena Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis |
topic_facet |
Micromesistius poutassou forme de l’otolithe descripteurs de Fourier discrimination de stock nord-est de l’Océan atlantique otolith shape Fourier descriptors stock discrimination northeast atlantic |
description |
Information on stock identification and spatial stock structure provide a basis for understanding fish population dynamics and improving fisheries management. In this study otolith shape analysis was used to study the stock structure of blue whiting (Micromesistius poutassou) in the northeast Atlantic using 1693 samples from mature fish collected between 37°N and 75°N and 20°W and 25°E. The results indicated two stocks located north and south of ICES Divisions VIa and VIb (54°5 to 60°5 N, 4° to 11°W). The central area corresponds to the spawning area west of Scotland. Sampling year effects and misclassification in the linear discriminant analysis suggested exchanges between the northern and southern stocks. The results corroborate previous studies indicating a structuring of the blue whiting stock into two stocks, with some degree of mixing in the central overlap area. L’identification et la connaissance de la structuration spatiale de stocks sont essentielles pour étudier la dynamique des populations de poissons et ainsi gérer les pêcheries. Dans cette étude, la forme des otolithes a été employée pour comprendre la structuration des stocks des merlans bleus (Micromesistius poutassou) dans le nord-est de l’Océan Atlantique a` partir de 1693 poissons matures échantillonnés entre 37°N–75°N et 20°O–25°E. Les résultats indiquent la présence de deux stocks situés au nord et au sud, respectivement, des divisions VIa et VIb du CIEM (de 54°5N a` 60°5N, de 4°O a` 11°O). La zone centrale correspond a` la zone de frai a` l’ouest de l’Écosse. Les effets du facteur année d’échantillonnage et la mauvaise classification dans l’analyse linéaire discriminante suggère des échanges entre les composants nordique et méridionale. Ces résultats corroborent des études antérieures indiquant une structuration des merlans bleus en deux stocks avec un certain niveau de mélange dans la zone de chevauchement. |
format |
Article in Journal/Newspaper |
author |
Mahe, Kelig Oudard, Clemence Mille, Tiphaine Keating, James P Gonçalves, Patricia Clausen, Lotte Worsøe Petursdottir, G Rasmussen, H Meland, E Mullins, E Pinnegar, Jk Hoines, A Trenkel, Verena |
author_facet |
Mahe, Kelig Oudard, Clemence Mille, Tiphaine Keating, James P Gonçalves, Patricia Clausen, Lotte Worsøe Petursdottir, G Rasmussen, H Meland, E Mullins, E Pinnegar, Jk Hoines, A Trenkel, Verena |
author_sort |
Mahe, Kelig |
title |
Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis |
title_short |
Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis |
title_full |
Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis |
title_fullStr |
Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis |
title_full_unstemmed |
Identifying blue whiting (Micromesistius poutassou) stock structure in the Northeast Atlantic by otolith shape analysis |
title_sort |
identifying blue whiting (micromesistius poutassou) stock structure in the northeast atlantic by otolith shape analysis |
publisher |
Canadian Science Publishing |
publishDate |
2016 |
url |
https://archimer.ifremer.fr/doc/00334/44508/44202.pdf https://doi.org/10.1139/cjfas-2015-0332 https://archimer.ifremer.fr/doc/00334/44508/ |
genre |
Northeast Atlantic |
genre_facet |
Northeast Atlantic |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences (0706-652X) (Canadian Science Publishing), 2016-02 , Vol. 73 , N. 9 , P. 1363-1371 |
op_relation |
info:eu-repo/grantAgreement/EC/FP7/264933/EU//EURO-BASIN https://archimer.ifremer.fr/doc/00334/44508/44202.pdf doi:10.1139/cjfas-2015-0332 https://archimer.ifremer.fr/doc/00334/44508/ |
op_rights |
Published by NRC Research Press info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1139/cjfas-2015-0332 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
73 |
container_issue |
9 |
container_start_page |
1363 |
op_container_end_page |
1371 |
_version_ |
1766142685706452992 |