Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou)
Abstract Brophy, D., and King, P. A. 2007. Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou). – ICES Journal of Marine Science, 64: 1136–1144. Oceanographic modelling studies suggest that blue whiting (Micromesistius poutas...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsm080 http://academic.oup.com/icesjms/article-pdf/64/6/1136/29152355/fsm080.pdf |
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croxfordunivpr:10.1093/icesjms/fsm080 2024-04-07T07:54:45+00:00 Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou) Brophy, Deirdre King, Pauline A. 2007 http://dx.doi.org/10.1093/icesjms/fsm080 http://academic.oup.com/icesjms/article-pdf/64/6/1136/29152355/fsm080.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 64, issue 6, page 1136-1144 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2007 croxfordunivpr https://doi.org/10.1093/icesjms/fsm080 2024-03-08T03:10:30Z Abstract Brophy, D., and King, P. A. 2007. Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou). – ICES Journal of Marine Science, 64: 1136–1144. Oceanographic modelling studies suggest that blue whiting (Micromesistius poutassou) larvae released on the Northeast Atlantic spawning grounds split into two branches, one following a northerly drift trajectory and the second drifting towards the south. This mechanism is proposed to restrict gene flow between northern and southern stock components. This study examined larval growth histories recorded in otoliths of adult blue whiting from three regions of the main spawning area and three feeding areas for evidence of divergent dispersal pathways. Increment measurements show that fish from the south of the spawning area on average grew significantly faster as larvae than those from the north of the spawning area, confirming that blue whiting spawning west of Ireland and Scotland do not form a randomly mixing unit, and that larval dispersal influences the subsequent distribution of spawning adults. Larval otolith growth rates in feeding blue whiting from the Bay of Biscay were significantly faster than those of fish from the Norwegian Sea feeding grounds, showing that mixing of fish from these areas is limited. Fish from the Bay of Biscay grew faster as larvae than fish from all regions of the main spawning area. The results support the proposed split in the blue whiting stock and signal caution for managing the fishery. Article in Journal/Newspaper Northeast Atlantic Norwegian Sea Oxford University Press Norwegian Sea ICES Journal of Marine Science 64 6 1136 1144 |
institution |
Open Polar |
collection |
Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
topic |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography Brophy, Deirdre King, Pauline A. Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou) |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Brophy, D., and King, P. A. 2007. Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou). – ICES Journal of Marine Science, 64: 1136–1144. Oceanographic modelling studies suggest that blue whiting (Micromesistius poutassou) larvae released on the Northeast Atlantic spawning grounds split into two branches, one following a northerly drift trajectory and the second drifting towards the south. This mechanism is proposed to restrict gene flow between northern and southern stock components. This study examined larval growth histories recorded in otoliths of adult blue whiting from three regions of the main spawning area and three feeding areas for evidence of divergent dispersal pathways. Increment measurements show that fish from the south of the spawning area on average grew significantly faster as larvae than those from the north of the spawning area, confirming that blue whiting spawning west of Ireland and Scotland do not form a randomly mixing unit, and that larval dispersal influences the subsequent distribution of spawning adults. Larval otolith growth rates in feeding blue whiting from the Bay of Biscay were significantly faster than those of fish from the Norwegian Sea feeding grounds, showing that mixing of fish from these areas is limited. Fish from the Bay of Biscay grew faster as larvae than fish from all regions of the main spawning area. The results support the proposed split in the blue whiting stock and signal caution for managing the fishery. |
format |
Article in Journal/Newspaper |
author |
Brophy, Deirdre King, Pauline A. |
author_facet |
Brophy, Deirdre King, Pauline A. |
author_sort |
Brophy, Deirdre |
title |
Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou) |
title_short |
Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou) |
title_full |
Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou) |
title_fullStr |
Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou) |
title_full_unstemmed |
Larval otolith growth histories show evidence of stock structure in Northeast Atlantic blue whiting (Micromesistius poutassou) |
title_sort |
larval otolith growth histories show evidence of stock structure in northeast atlantic blue whiting (micromesistius poutassou) |
publisher |
Oxford University Press (OUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1093/icesjms/fsm080 http://academic.oup.com/icesjms/article-pdf/64/6/1136/29152355/fsm080.pdf |
geographic |
Norwegian Sea |
geographic_facet |
Norwegian Sea |
genre |
Northeast Atlantic Norwegian Sea |
genre_facet |
Northeast Atlantic Norwegian Sea |
op_source |
ICES Journal of Marine Science volume 64, issue 6, page 1136-1144 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsm080 |
container_title |
ICES Journal of Marine Science |
container_volume |
64 |
container_issue |
6 |
container_start_page |
1136 |
op_container_end_page |
1144 |
_version_ |
1795671484463579136 |