Climate change threatens Chinook salmon throughout their life cycle
Abstract Widespread declines in Atlantic and Pacific salmon ( Salmo salar and Oncorhynchus spp.) have tracked recent climate changes, but managers still lack quantitative projections of the viability of any individual population in response to future climate change. To address this gap, we assembled...
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2021
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crspringernat:10.1038/s42003-021-01734-w 2023-05-15T18:09:52+02:00 Climate change threatens Chinook salmon throughout their life cycle Crozier, Lisa G. Burke, Brian J. Chasco, Brandon E. Widener, Daniel L. Zabel, Richard W. 2021 http://dx.doi.org/10.1038/s42003-021-01734-w http://www.nature.com/articles/s42003-021-01734-w.pdf http://www.nature.com/articles/s42003-021-01734-w en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Communications Biology volume 4, issue 1 ISSN 2399-3642 General Agricultural and Biological Sciences General Biochemistry, Genetics and Molecular Biology Medicine (miscellaneous) journal-article 2021 crspringernat https://doi.org/10.1038/s42003-021-01734-w 2022-01-04T15:02:21Z Abstract Widespread declines in Atlantic and Pacific salmon ( Salmo salar and Oncorhynchus spp.) have tracked recent climate changes, but managers still lack quantitative projections of the viability of any individual population in response to future climate change. To address this gap, we assembled a vast database of survival and other data for eight wild populations of threatened Chinook salmon ( O. tshawytscha ). For each population, we evaluated climate impacts at all life stages and modeled future trajectories forced by global climate model projections. Populations rapidly declined in response to increasing sea surface temperatures and other factors across diverse model assumptions and climate scenarios. Strong density dependence limited the number of salmon that survived early life stages, suggesting a potentially efficacious target for conservation effort. Other solutions require a better understanding of the factors that limit survival at sea. We conclude that dramatic increases in smolt survival are needed to overcome the negative impacts of climate change for this threatened species. Article in Journal/Newspaper Salmo salar Springer Nature (via Crossref) Pacific Communications Biology 4 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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English |
topic |
General Agricultural and Biological Sciences General Biochemistry, Genetics and Molecular Biology Medicine (miscellaneous) |
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General Agricultural and Biological Sciences General Biochemistry, Genetics and Molecular Biology Medicine (miscellaneous) Crozier, Lisa G. Burke, Brian J. Chasco, Brandon E. Widener, Daniel L. Zabel, Richard W. Climate change threatens Chinook salmon throughout their life cycle |
topic_facet |
General Agricultural and Biological Sciences General Biochemistry, Genetics and Molecular Biology Medicine (miscellaneous) |
description |
Abstract Widespread declines in Atlantic and Pacific salmon ( Salmo salar and Oncorhynchus spp.) have tracked recent climate changes, but managers still lack quantitative projections of the viability of any individual population in response to future climate change. To address this gap, we assembled a vast database of survival and other data for eight wild populations of threatened Chinook salmon ( O. tshawytscha ). For each population, we evaluated climate impacts at all life stages and modeled future trajectories forced by global climate model projections. Populations rapidly declined in response to increasing sea surface temperatures and other factors across diverse model assumptions and climate scenarios. Strong density dependence limited the number of salmon that survived early life stages, suggesting a potentially efficacious target for conservation effort. Other solutions require a better understanding of the factors that limit survival at sea. We conclude that dramatic increases in smolt survival are needed to overcome the negative impacts of climate change for this threatened species. |
format |
Article in Journal/Newspaper |
author |
Crozier, Lisa G. Burke, Brian J. Chasco, Brandon E. Widener, Daniel L. Zabel, Richard W. |
author_facet |
Crozier, Lisa G. Burke, Brian J. Chasco, Brandon E. Widener, Daniel L. Zabel, Richard W. |
author_sort |
Crozier, Lisa G. |
title |
Climate change threatens Chinook salmon throughout their life cycle |
title_short |
Climate change threatens Chinook salmon throughout their life cycle |
title_full |
Climate change threatens Chinook salmon throughout their life cycle |
title_fullStr |
Climate change threatens Chinook salmon throughout their life cycle |
title_full_unstemmed |
Climate change threatens Chinook salmon throughout their life cycle |
title_sort |
climate change threatens chinook salmon throughout their life cycle |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s42003-021-01734-w http://www.nature.com/articles/s42003-021-01734-w.pdf http://www.nature.com/articles/s42003-021-01734-w |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Salmo salar |
genre_facet |
Salmo salar |
op_source |
Communications Biology volume 4, issue 1 ISSN 2399-3642 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s42003-021-01734-w |
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Communications Biology |
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4 |
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1 |
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1766182546980208640 |