Causes and consequences of life-history variation in North American stocks of Pacific cod
<qd> Ormseth, O. A., and Norcross, B. L. 2009. Causes and consequences of life-history variation in North American stocks of Pacific cod. – ICES Journal of Marine Science, 66: 349–357. </qd>Life-history strategies of four Pacific cod ( Gadus macrocephalus ) stocks in the eastern North Pa...
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fthighwire:oai:open-archive.highwire.org:icesjms:66/2/349 2023-05-15T15:27:08+02:00 Causes and consequences of life-history variation in North American stocks of Pacific cod Ormseth, Olav A. Norcross, Brenda L. 2009-03-01 00:00:00.0 text/html http://icesjms.oxfordjournals.org/cgi/content/short/66/2/349 https://doi.org/10.1093/icesjms/fsn156 en eng Oxford University Press http://icesjms.oxfordjournals.org/cgi/content/short/66/2/349 http://dx.doi.org/10.1093/icesjms/fsn156 Copyright (C) 2009, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer ICES/PICES Early Career Scientists Symposium TEXT 2009 fthighwire https://doi.org/10.1093/icesjms/fsn156 2009-03-30T07:45:01Z <qd> Ormseth, O. A., and Norcross, B. L. 2009. Causes and consequences of life-history variation in North American stocks of Pacific cod. – ICES Journal of Marine Science, 66: 349–357. </qd>Life-history strategies of four Pacific cod ( Gadus macrocephalus ) stocks in the eastern North Pacific Ocean are outlined. Southern stocks grew and matured quicker, but reached smaller maximum size and had shorter lifespans than northern stocks. The trade-offs resulted in similar lifetime reproductive success among all stocks. Growth was highly dependent on latitude, but not on temperature, possibly because of differences in the duration of the growing season. Comparisons with Atlantic cod ( Gadus morhua ) revealed similar latitude/growth relationships among Atlantic cod stocks grouped by geographic region. In Pacific cod, greater size and longevity in the north appeared to be adaptations to overcome environmental constraints on growth and to maintain fitness. An egg production-per-recruit model suggested that the life-history strategy of northern Pacific cod stocks made them less resilient to fishing activity and age truncation than southern stocks. Text atlantic cod Gadus morhua HighWire Press (Stanford University) Pacific ICES Journal of Marine Science 66 2 349 357 |
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Open Polar |
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HighWire Press (Stanford University) |
op_collection_id |
fthighwire |
language |
English |
topic |
ICES/PICES Early Career Scientists Symposium |
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ICES/PICES Early Career Scientists Symposium Ormseth, Olav A. Norcross, Brenda L. Causes and consequences of life-history variation in North American stocks of Pacific cod |
topic_facet |
ICES/PICES Early Career Scientists Symposium |
description |
<qd> Ormseth, O. A., and Norcross, B. L. 2009. Causes and consequences of life-history variation in North American stocks of Pacific cod. – ICES Journal of Marine Science, 66: 349–357. </qd>Life-history strategies of four Pacific cod ( Gadus macrocephalus ) stocks in the eastern North Pacific Ocean are outlined. Southern stocks grew and matured quicker, but reached smaller maximum size and had shorter lifespans than northern stocks. The trade-offs resulted in similar lifetime reproductive success among all stocks. Growth was highly dependent on latitude, but not on temperature, possibly because of differences in the duration of the growing season. Comparisons with Atlantic cod ( Gadus morhua ) revealed similar latitude/growth relationships among Atlantic cod stocks grouped by geographic region. In Pacific cod, greater size and longevity in the north appeared to be adaptations to overcome environmental constraints on growth and to maintain fitness. An egg production-per-recruit model suggested that the life-history strategy of northern Pacific cod stocks made them less resilient to fishing activity and age truncation than southern stocks. |
format |
Text |
author |
Ormseth, Olav A. Norcross, Brenda L. |
author_facet |
Ormseth, Olav A. Norcross, Brenda L. |
author_sort |
Ormseth, Olav A. |
title |
Causes and consequences of life-history variation in North American stocks of Pacific cod |
title_short |
Causes and consequences of life-history variation in North American stocks of Pacific cod |
title_full |
Causes and consequences of life-history variation in North American stocks of Pacific cod |
title_fullStr |
Causes and consequences of life-history variation in North American stocks of Pacific cod |
title_full_unstemmed |
Causes and consequences of life-history variation in North American stocks of Pacific cod |
title_sort |
causes and consequences of life-history variation in north american stocks of pacific cod |
publisher |
Oxford University Press |
publishDate |
2009 |
url |
http://icesjms.oxfordjournals.org/cgi/content/short/66/2/349 https://doi.org/10.1093/icesjms/fsn156 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_relation |
http://icesjms.oxfordjournals.org/cgi/content/short/66/2/349 http://dx.doi.org/10.1093/icesjms/fsn156 |
op_rights |
Copyright (C) 2009, International Council for the Exploration of the Sea/Conseil International pour l'Exploration de la Mer |
op_doi |
https://doi.org/10.1093/icesjms/fsn156 |
container_title |
ICES Journal of Marine Science |
container_volume |
66 |
container_issue |
2 |
container_start_page |
349 |
op_container_end_page |
357 |
_version_ |
1766357596523986944 |