Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters
Abstract Jónsdóttir, I. G., Marteinsdottir, G., and Campana, S. E. 2007. Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters. – ICES Journal of Marine Science, 64: 000–000. Otolith chemistry and length-at-age were used to estimate the contribution of...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsm157 http://academic.oup.com/icesjms/article-pdf/64/9/1749/29128447/fsm157.pdf |
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croxfordunivpr:10.1093/icesjms/fsm157 2024-05-12T08:03:54+00:00 Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters Jónsdóttir, Ingibjörg G. Marteinsdottir, Gudrun Campana, Steven E. 2007 http://dx.doi.org/10.1093/icesjms/fsm157 http://academic.oup.com/icesjms/article-pdf/64/9/1749/29128447/fsm157.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 64, issue 9, page 1749-1759 ISSN 1095-9289 1054-3139 Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2007 croxfordunivpr https://doi.org/10.1093/icesjms/fsm157 2024-04-18T08:15:40Z Abstract Jónsdóttir, I. G., Marteinsdottir, G., and Campana, S. E. 2007. Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters. – ICES Journal of Marine Science, 64: 000–000. Otolith chemistry and length-at-age were used to estimate the contribution of different spawning components to the harvested stock of cod (Gadus morhua) at two of their main feeding grounds northwest and east of Iceland. Spawning cod were sampled at different spawning locations around Iceland in spring of 2002 and 2003. Significant differences were detected between cod from the different spawning locations. Cod of unknown stock origin were also sampled at two of the main feeding grounds in October of the same years. Analyses based on maximum likelihood were used to estimate the proportion of each spawning group in the mixed stock catches using otolith chemistry and fish length-at-age. Attempts to use otolith shape to estimate the contribution of the spawning groups to the mixed harvested stock were, however, unsuccessful. The results indicated that spawning locations northwest and north of Iceland, as well as in water deeper than 125 m south of Iceland, contributed the most to the harvested stock. Cod spawning shallower than 125 m south of Iceland did not contribute to the feeding grounds in October of 2002 and 2003. Therefore, exploitation of the feeding stock mixtures seems to be based on spawning components that have previously been considered to be of minor importance to the Icelandic cod stock. Article in Journal/Newspaper Gadus morhua Iceland Oxford University Press ICES Journal of Marine Science 64 9 1749 1759 |
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Open Polar |
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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 Jónsdóttir, Ingibjörg G. Marteinsdottir, Gudrun Campana, Steven E. Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters |
topic_facet |
Ecology Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography |
description |
Abstract Jónsdóttir, I. G., Marteinsdottir, G., and Campana, S. E. 2007. Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters. – ICES Journal of Marine Science, 64: 000–000. Otolith chemistry and length-at-age were used to estimate the contribution of different spawning components to the harvested stock of cod (Gadus morhua) at two of their main feeding grounds northwest and east of Iceland. Spawning cod were sampled at different spawning locations around Iceland in spring of 2002 and 2003. Significant differences were detected between cod from the different spawning locations. Cod of unknown stock origin were also sampled at two of the main feeding grounds in October of the same years. Analyses based on maximum likelihood were used to estimate the proportion of each spawning group in the mixed stock catches using otolith chemistry and fish length-at-age. Attempts to use otolith shape to estimate the contribution of the spawning groups to the mixed harvested stock were, however, unsuccessful. The results indicated that spawning locations northwest and north of Iceland, as well as in water deeper than 125 m south of Iceland, contributed the most to the harvested stock. Cod spawning shallower than 125 m south of Iceland did not contribute to the feeding grounds in October of 2002 and 2003. Therefore, exploitation of the feeding stock mixtures seems to be based on spawning components that have previously been considered to be of minor importance to the Icelandic cod stock. |
format |
Article in Journal/Newspaper |
author |
Jónsdóttir, Ingibjörg G. Marteinsdottir, Gudrun Campana, Steven E. |
author_facet |
Jónsdóttir, Ingibjörg G. Marteinsdottir, Gudrun Campana, Steven E. |
author_sort |
Jónsdóttir, Ingibjörg G. |
title |
Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters |
title_short |
Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters |
title_full |
Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters |
title_fullStr |
Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters |
title_full_unstemmed |
Contribution of different spawning components to the mixed stock fishery for cod in Icelandic waters |
title_sort |
contribution of different spawning components to the mixed stock fishery for cod in icelandic waters |
publisher |
Oxford University Press (OUP) |
publishDate |
2007 |
url |
http://dx.doi.org/10.1093/icesjms/fsm157 http://academic.oup.com/icesjms/article-pdf/64/9/1749/29128447/fsm157.pdf |
genre |
Gadus morhua Iceland |
genre_facet |
Gadus morhua Iceland |
op_source |
ICES Journal of Marine Science volume 64, issue 9, page 1749-1759 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsm157 |
container_title |
ICES Journal of Marine Science |
container_volume |
64 |
container_issue |
9 |
container_start_page |
1749 |
op_container_end_page |
1759 |
_version_ |
1798846031494905856 |