Pacific salmon abundance trends and climate change
Abstract Irvine, J. R., and Fukuwaka, M. 2011. Pacific salmon abundance trends and climate change. – ICES Journal of Marine Science, 68: 1122–1130. Understanding reasons for historical patterns in salmon abundance could help anticipate future climate-related changes. Recent salmon abundance in the n...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsq199 http://academic.oup.com/icesjms/article-pdf/68/6/1122/29141392/fsq199.pdf |
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croxfordunivpr:10.1093/icesjms/fsq199 2024-05-19T07:47:24+00:00 Pacific salmon abundance trends and climate change Irvine, James R. Fukuwaka, Masa-aki 2011 http://dx.doi.org/10.1093/icesjms/fsq199 http://academic.oup.com/icesjms/article-pdf/68/6/1122/29141392/fsq199.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by-nc/2.5/ ICES Journal of Marine Science volume 68, issue 6, page 1122-1130 ISSN 1095-9289 1054-3139 journal-article 2011 croxfordunivpr https://doi.org/10.1093/icesjms/fsq199 2024-04-25T07:59:09Z Abstract Irvine, J. R., and Fukuwaka, M. 2011. Pacific salmon abundance trends and climate change. – ICES Journal of Marine Science, 68: 1122–1130. Understanding reasons for historical patterns in salmon abundance could help anticipate future climate-related changes. Recent salmon abundance in the northern North Pacific Ocean, as indexed by commercial catches, has been among the highest on record, with no indication of decline; the 2009 catch was the highest to date. Although the North Pacific Ocean continues to produce large quantities of Pacific salmon, temporal abundance patterns vary among species and areas. Currently, pink and chum salmon are very abundant overall and Chinook and coho salmon are less abundant than they were previously, whereas sockeye salmon abundance varies among areas. Analyses confirm climate-related shifts in abundance, associated with reported ecosystem regime shifts in approximately 1947, 1977, and 1989. We found little evidence to support a major shift after 1989. From 1990, generally favourable climate-related marine conditions in the western North Pacific Ocean, as well as expanding hatchery operations and improving hatchery technologies, are increasing abundances of chum and pink salmon. In the eastern North Pacific Ocean, climate-related changes are apparently playing a role in increasing chum and pink salmon abundances and declining numbers of coho and Chinook salmon. Article in Journal/Newspaper Pink salmon Oxford University Press ICES Journal of Marine Science 68 6 1122 1130 |
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Abstract Irvine, J. R., and Fukuwaka, M. 2011. Pacific salmon abundance trends and climate change. – ICES Journal of Marine Science, 68: 1122–1130. Understanding reasons for historical patterns in salmon abundance could help anticipate future climate-related changes. Recent salmon abundance in the northern North Pacific Ocean, as indexed by commercial catches, has been among the highest on record, with no indication of decline; the 2009 catch was the highest to date. Although the North Pacific Ocean continues to produce large quantities of Pacific salmon, temporal abundance patterns vary among species and areas. Currently, pink and chum salmon are very abundant overall and Chinook and coho salmon are less abundant than they were previously, whereas sockeye salmon abundance varies among areas. Analyses confirm climate-related shifts in abundance, associated with reported ecosystem regime shifts in approximately 1947, 1977, and 1989. We found little evidence to support a major shift after 1989. From 1990, generally favourable climate-related marine conditions in the western North Pacific Ocean, as well as expanding hatchery operations and improving hatchery technologies, are increasing abundances of chum and pink salmon. In the eastern North Pacific Ocean, climate-related changes are apparently playing a role in increasing chum and pink salmon abundances and declining numbers of coho and Chinook salmon. |
format |
Article in Journal/Newspaper |
author |
Irvine, James R. Fukuwaka, Masa-aki |
spellingShingle |
Irvine, James R. Fukuwaka, Masa-aki Pacific salmon abundance trends and climate change |
author_facet |
Irvine, James R. Fukuwaka, Masa-aki |
author_sort |
Irvine, James R. |
title |
Pacific salmon abundance trends and climate change |
title_short |
Pacific salmon abundance trends and climate change |
title_full |
Pacific salmon abundance trends and climate change |
title_fullStr |
Pacific salmon abundance trends and climate change |
title_full_unstemmed |
Pacific salmon abundance trends and climate change |
title_sort |
pacific salmon abundance trends and climate change |
publisher |
Oxford University Press (OUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1093/icesjms/fsq199 http://academic.oup.com/icesjms/article-pdf/68/6/1122/29141392/fsq199.pdf |
genre |
Pink salmon |
genre_facet |
Pink salmon |
op_source |
ICES Journal of Marine Science volume 68, issue 6, page 1122-1130 ISSN 1095-9289 1054-3139 |
op_rights |
http://creativecommons.org/licenses/by-nc/2.5/ |
op_doi |
https://doi.org/10.1093/icesjms/fsq199 |
container_title |
ICES Journal of Marine Science |
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68 |
container_issue |
6 |
container_start_page |
1122 |
op_container_end_page |
1130 |
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1799487809752399872 |