Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock
The temperature–size rule predicts that climate warming will lead to faster growth rates for juvenile fishes but lower adult body size. Testing this prediction is central to understanding the effects of climate change on population dynamics. We use fisheries-independent data (1999–2019) to test pred...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
2022
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Online Access: | http://dx.doi.org/10.1139/cjfas-2021-0315 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0315 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0315 |
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crcansciencepubl:10.1139/cjfas-2021-0315 2024-06-23T07:51:44+00:00 Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock Oke, Krista B. Mueter, Franz Litzow, Michael A. 2022 http://dx.doi.org/10.1139/cjfas-2021-0315 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0315 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0315 en eng Canadian Science Publishing https://creativecommons.org/licenses/by/4.0/deed.en_GB Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 10, page 1655-1666 ISSN 0706-652X 1205-7533 journal-article 2022 crcansciencepubl https://doi.org/10.1139/cjfas-2021-0315 2024-06-06T04:11:18Z The temperature–size rule predicts that climate warming will lead to faster growth rates for juvenile fishes but lower adult body size. Testing this prediction is central to understanding the effects of climate change on population dynamics. We use fisheries-independent data (1999–2019) to test predictions of age-specific climate effects on body size in eastern Bering Sea walleye pollock ( Gadus chalcogrammus). This stock supports one of the largest food fisheries in the world but is experiencing exceptionally rapid warming. Our results support the predictions that weight-at-age increases with temperature for young age classes (ages 1, 3, and 4) but decreases with temperature for old age classes (ages 7–15). Simultaneous demonstrations of larger juveniles and smaller adults with warming have thus far been rare, but pollock provide a striking example in a fish of exceptional ecological and commercial importance. The age-specific response to temperature was large enough (0.5–1 SD change in log weight-at-age) to have important implications for pollock management, which must estimate current and future weight-at-age to calculate allowable catch, and for the Bering Sea pollock fishery. Article in Journal/Newspaper Bering Sea Canadian Science Publishing Bering Sea Canadian Journal of Fisheries and Aquatic Sciences |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
English |
description |
The temperature–size rule predicts that climate warming will lead to faster growth rates for juvenile fishes but lower adult body size. Testing this prediction is central to understanding the effects of climate change on population dynamics. We use fisheries-independent data (1999–2019) to test predictions of age-specific climate effects on body size in eastern Bering Sea walleye pollock ( Gadus chalcogrammus). This stock supports one of the largest food fisheries in the world but is experiencing exceptionally rapid warming. Our results support the predictions that weight-at-age increases with temperature for young age classes (ages 1, 3, and 4) but decreases with temperature for old age classes (ages 7–15). Simultaneous demonstrations of larger juveniles and smaller adults with warming have thus far been rare, but pollock provide a striking example in a fish of exceptional ecological and commercial importance. The age-specific response to temperature was large enough (0.5–1 SD change in log weight-at-age) to have important implications for pollock management, which must estimate current and future weight-at-age to calculate allowable catch, and for the Bering Sea pollock fishery. |
format |
Article in Journal/Newspaper |
author |
Oke, Krista B. Mueter, Franz Litzow, Michael A. |
spellingShingle |
Oke, Krista B. Mueter, Franz Litzow, Michael A. Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock |
author_facet |
Oke, Krista B. Mueter, Franz Litzow, Michael A. |
author_sort |
Oke, Krista B. |
title |
Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock |
title_short |
Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock |
title_full |
Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock |
title_fullStr |
Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock |
title_full_unstemmed |
Warming leads to opposite patterns in weight-at-age for young versus old age classes of Bering Sea walleye pollock |
title_sort |
warming leads to opposite patterns in weight-at-age for young versus old age classes of bering sea walleye pollock |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/cjfas-2021-0315 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0315 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0315 |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 10, page 1655-1666 ISSN 0706-652X 1205-7533 |
op_rights |
https://creativecommons.org/licenses/by/4.0/deed.en_GB |
op_doi |
https://doi.org/10.1139/cjfas-2021-0315 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1802642862791196672 |