Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts
Two measures of productivity for fish stocks (recruitment and stock–recruit residuals) within two large marine ecosystems (Gulf of Alaska and eastern Bering Sea – Aleutian Islands) showed significant positive covariation within several groups of species and significant negative covariation between c...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Online Access: | http://dx.doi.org/10.1139/f07-069 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-069 |
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crcansciencepubl:10.1139/f07-069 2024-06-23T07:51:45+00:00 Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts Mueter, Franz J Boldt, Jennifer L Megrey, Bernard A Peterman, Randall M 2007 http://dx.doi.org/10.1139/f07-069 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-069 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 64, issue 6, page 911-927 ISSN 0706-652X 1205-7533 journal-article 2007 crcansciencepubl https://doi.org/10.1139/f07-069 2024-06-06T04:11:16Z Two measures of productivity for fish stocks (recruitment and stock–recruit residuals) within two large marine ecosystems (Gulf of Alaska and eastern Bering Sea – Aleutian Islands) showed significant positive covariation within several groups of species and significant negative covariation between certain others. For example, stock–recruit residuals of gadids (Gadidae) in the Bering Sea were inversely related to those of shelf flatfishes (Pleuronectidae), suggesting that environmental forcing affects these groups in opposite ways. Salmon (Oncorhynchus spp.), Pacific herring (Clupea pallasii), and groundfish stocks each showed strong patterns of covariation within these taxonomic groups and within ecosystems, and both salmon and groundfish stocks showed positive covariation between the two ecosystems. However, we found little evidence of covariation between salmon and herring stocks or between these stocks and demersal stocks. Recruitment and stock–recruit residuals in individual stocks did not show a consistent response to known climatic regime shifts. However, combined indices of productivity across stocks showed decadal-scale variability (regime-like patterns), suggesting that both pelagic productivity (mostly salmon) and demersal productivity increased in response to the well-documented 1976–1977 climatic regime shift, whereas the 1988–1989 regime shift produced inconsistent or short-lived responses. Article in Journal/Newspaper Bering Sea Alaska Aleutian Islands Canadian Science Publishing Bering Sea Gulf of Alaska Pacific Canadian Journal of Fisheries and Aquatic Sciences 64 6 911 927 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
Two measures of productivity for fish stocks (recruitment and stock–recruit residuals) within two large marine ecosystems (Gulf of Alaska and eastern Bering Sea – Aleutian Islands) showed significant positive covariation within several groups of species and significant negative covariation between certain others. For example, stock–recruit residuals of gadids (Gadidae) in the Bering Sea were inversely related to those of shelf flatfishes (Pleuronectidae), suggesting that environmental forcing affects these groups in opposite ways. Salmon (Oncorhynchus spp.), Pacific herring (Clupea pallasii), and groundfish stocks each showed strong patterns of covariation within these taxonomic groups and within ecosystems, and both salmon and groundfish stocks showed positive covariation between the two ecosystems. However, we found little evidence of covariation between salmon and herring stocks or between these stocks and demersal stocks. Recruitment and stock–recruit residuals in individual stocks did not show a consistent response to known climatic regime shifts. However, combined indices of productivity across stocks showed decadal-scale variability (regime-like patterns), suggesting that both pelagic productivity (mostly salmon) and demersal productivity increased in response to the well-documented 1976–1977 climatic regime shift, whereas the 1988–1989 regime shift produced inconsistent or short-lived responses. |
format |
Article in Journal/Newspaper |
author |
Mueter, Franz J Boldt, Jennifer L Megrey, Bernard A Peterman, Randall M |
spellingShingle |
Mueter, Franz J Boldt, Jennifer L Megrey, Bernard A Peterman, Randall M Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts |
author_facet |
Mueter, Franz J Boldt, Jennifer L Megrey, Bernard A Peterman, Randall M |
author_sort |
Mueter, Franz J |
title |
Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts |
title_short |
Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts |
title_full |
Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts |
title_fullStr |
Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts |
title_full_unstemmed |
Recruitment and survival of Northeast Pacific Ocean fish stocks: temporal trends, covariation, and regime shifts |
title_sort |
recruitment and survival of northeast pacific ocean fish stocks: temporal trends, covariation, and regime shifts |
publisher |
Canadian Science Publishing |
publishDate |
2007 |
url |
http://dx.doi.org/10.1139/f07-069 http://www.nrcresearchpress.com/doi/pdf/10.1139/f07-069 |
geographic |
Bering Sea Gulf of Alaska Pacific |
geographic_facet |
Bering Sea Gulf of Alaska Pacific |
genre |
Bering Sea Alaska Aleutian Islands |
genre_facet |
Bering Sea Alaska Aleutian Islands |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 64, issue 6, page 911-927 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f07-069 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
64 |
container_issue |
6 |
container_start_page |
911 |
op_container_end_page |
927 |
_version_ |
1802642876657565696 |