Cod recruitment is strongly affected by climate when stock biomass is low
Abstract Stocks of Atlantic cod (Gadus morhua) have been declining over much of the North Atlantic for the past 30 years, owing to a combination of overfishing and adverse changes in their environment. In a previous study, environmental effects were introduced as an extra parameter in the stock-recr...
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Oxford University Press (OUP)
2005
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Online Access: | http://dx.doi.org/10.1016/j.icesjms.2004.07.029 http://academic.oup.com/icesjms/article-pdf/62/3/339/29151161/62-3-339.pdf |
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croxfordunivpr:10.1016/j.icesjms.2004.07.029 2024-09-15T17:55:28+00:00 Cod recruitment is strongly affected by climate when stock biomass is low Brander, Keith M. 2005 http://dx.doi.org/10.1016/j.icesjms.2004.07.029 http://academic.oup.com/icesjms/article-pdf/62/3/339/29151161/62-3-339.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 62, issue 3, page 339-343 ISSN 1095-9289 1054-3139 journal-article 2005 croxfordunivpr https://doi.org/10.1016/j.icesjms.2004.07.029 2024-08-12T04:25:28Z Abstract Stocks of Atlantic cod (Gadus morhua) have been declining over much of the North Atlantic for the past 30 years, owing to a combination of overfishing and adverse changes in their environment. In a previous study, environmental effects were introduced as an extra parameter in the stock-recruit relationship, where they act as a multiplier, independent of the level of spawning-stock biomass (SSB). Using a non-parametric pooled analysis of all cod stocks on the European Shelf south of 62°N, it is shown here that environmental variability (as represented by the North Atlantic Oscillation) only has a significant effect on recruitment when the spawning stock is low. This has implications for fisheries management strategies, and for rates of stock recovery, which will be very dependent on environmental conditions. Article in Journal/Newspaper atlantic cod Gadus morhua North Atlantic North Atlantic oscillation Oxford University Press ICES Journal of Marine Science 62 3 339 343 |
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Open Polar |
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Oxford University Press |
op_collection_id |
croxfordunivpr |
language |
English |
description |
Abstract Stocks of Atlantic cod (Gadus morhua) have been declining over much of the North Atlantic for the past 30 years, owing to a combination of overfishing and adverse changes in their environment. In a previous study, environmental effects were introduced as an extra parameter in the stock-recruit relationship, where they act as a multiplier, independent of the level of spawning-stock biomass (SSB). Using a non-parametric pooled analysis of all cod stocks on the European Shelf south of 62°N, it is shown here that environmental variability (as represented by the North Atlantic Oscillation) only has a significant effect on recruitment when the spawning stock is low. This has implications for fisheries management strategies, and for rates of stock recovery, which will be very dependent on environmental conditions. |
format |
Article in Journal/Newspaper |
author |
Brander, Keith M. |
spellingShingle |
Brander, Keith M. Cod recruitment is strongly affected by climate when stock biomass is low |
author_facet |
Brander, Keith M. |
author_sort |
Brander, Keith M. |
title |
Cod recruitment is strongly affected by climate when stock biomass is low |
title_short |
Cod recruitment is strongly affected by climate when stock biomass is low |
title_full |
Cod recruitment is strongly affected by climate when stock biomass is low |
title_fullStr |
Cod recruitment is strongly affected by climate when stock biomass is low |
title_full_unstemmed |
Cod recruitment is strongly affected by climate when stock biomass is low |
title_sort |
cod recruitment is strongly affected by climate when stock biomass is low |
publisher |
Oxford University Press (OUP) |
publishDate |
2005 |
url |
http://dx.doi.org/10.1016/j.icesjms.2004.07.029 http://academic.oup.com/icesjms/article-pdf/62/3/339/29151161/62-3-339.pdf |
genre |
atlantic cod Gadus morhua North Atlantic North Atlantic oscillation |
genre_facet |
atlantic cod Gadus morhua North Atlantic North Atlantic oscillation |
op_source |
ICES Journal of Marine Science volume 62, issue 3, page 339-343 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1016/j.icesjms.2004.07.029 |
container_title |
ICES Journal of Marine Science |
container_volume |
62 |
container_issue |
3 |
container_start_page |
339 |
op_container_end_page |
343 |
_version_ |
1810431759038283776 |