Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss
Abstract Increasing temperatures and changes in food resources owing to climate change may alter the growth and migratory behavior of organisms. This is particularly important for salmonid species like Oncorhynchus mykiss , where some individuals remain in freshwater to mature (nonanadromous Rainbow...
Published in: | Transactions of the American Fisheries Society |
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crwiley:10.1080/00028487.2012.728162 2024-09-09T19:33:09+00:00 Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss Benjamin, Joseph R. Connolly, Patrick J. Romine, Jason G. Perry, Russell W. U.S. Geological Survey 2012 http://dx.doi.org/10.1080/00028487.2012.728162 https://onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2012.728162 https://onlinelibrary.wiley.com/doi/full-xml/10.1080/00028487.2012.728162 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2012.728162 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 142, issue 1, page 208-220 ISSN 0002-8487 1548-8659 journal-article 2012 crwiley https://doi.org/10.1080/00028487.2012.728162 2024-06-18T04:10:45Z Abstract Increasing temperatures and changes in food resources owing to climate change may alter the growth and migratory behavior of organisms. This is particularly important for salmonid species like Oncorhynchus mykiss , where some individuals remain in freshwater to mature (nonanadromous Rainbow Trout) and others migrate to sea (anadromous Steelhead). Whether one strategy is adopted over the other may depend on the individual's growth and size. In this study, we explored (1) how water temperature in Beaver Creek, a tributary to the Methow River, Washington, may increase under four climate scenarios, (2) how these thermal changes may alter the life history trajectory followed by O. mykiss (i.e., when and if to smolt), and (3) how changes in food quality or quantity might interact with increasing temperatures. We combined bioenergetic and state‐dependent life history models parameterized for O. mykiss in Beaver Creek to mimic baseline life history trajectories. Based on our simulations, when mean water temperature was increased by 0.6°C there was a reduction in life history diversity and a 57% increase in the number of individuals becoming smolts. When mean temperature was increased by 2.7°C, it resulted in 87% fewer smolts than in the baseline and fewer life history trajectories expressed. A reduction in food resources led to slower growth, more life history trajectories, and a greater proportion of smolts. In contrast, when food resources were increased, fish grew faster, which reduced the proportion of smolts and life history diversity. Our modeling suggests that warmer water temperatures associated with climate change could decrease the life history diversity of O. mykiss in the central portion of their range and thereby reduce resiliency to other disturbances. In addition, changes in food resources could mediate or exacerbate the effect of water temperature on the life history trajectories of O. mykiss . Article in Journal/Newspaper Beaver Creek Wiley Online Library Transactions of the American Fisheries Society 142 1 208 220 |
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Open Polar |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Increasing temperatures and changes in food resources owing to climate change may alter the growth and migratory behavior of organisms. This is particularly important for salmonid species like Oncorhynchus mykiss , where some individuals remain in freshwater to mature (nonanadromous Rainbow Trout) and others migrate to sea (anadromous Steelhead). Whether one strategy is adopted over the other may depend on the individual's growth and size. In this study, we explored (1) how water temperature in Beaver Creek, a tributary to the Methow River, Washington, may increase under four climate scenarios, (2) how these thermal changes may alter the life history trajectory followed by O. mykiss (i.e., when and if to smolt), and (3) how changes in food quality or quantity might interact with increasing temperatures. We combined bioenergetic and state‐dependent life history models parameterized for O. mykiss in Beaver Creek to mimic baseline life history trajectories. Based on our simulations, when mean water temperature was increased by 0.6°C there was a reduction in life history diversity and a 57% increase in the number of individuals becoming smolts. When mean temperature was increased by 2.7°C, it resulted in 87% fewer smolts than in the baseline and fewer life history trajectories expressed. A reduction in food resources led to slower growth, more life history trajectories, and a greater proportion of smolts. In contrast, when food resources were increased, fish grew faster, which reduced the proportion of smolts and life history diversity. Our modeling suggests that warmer water temperatures associated with climate change could decrease the life history diversity of O. mykiss in the central portion of their range and thereby reduce resiliency to other disturbances. In addition, changes in food resources could mediate or exacerbate the effect of water temperature on the life history trajectories of O. mykiss . |
author2 |
U.S. Geological Survey |
format |
Article in Journal/Newspaper |
author |
Benjamin, Joseph R. Connolly, Patrick J. Romine, Jason G. Perry, Russell W. |
spellingShingle |
Benjamin, Joseph R. Connolly, Patrick J. Romine, Jason G. Perry, Russell W. Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss |
author_facet |
Benjamin, Joseph R. Connolly, Patrick J. Romine, Jason G. Perry, Russell W. |
author_sort |
Benjamin, Joseph R. |
title |
Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss |
title_short |
Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss |
title_full |
Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss |
title_fullStr |
Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss |
title_full_unstemmed |
Potential Effects of Changes in Temperature and Food Resources on Life History Trajectories of Juvenile Oncorhynchus mykiss |
title_sort |
potential effects of changes in temperature and food resources on life history trajectories of juvenile oncorhynchus mykiss |
publisher |
Wiley |
publishDate |
2012 |
url |
http://dx.doi.org/10.1080/00028487.2012.728162 https://onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2012.728162 https://onlinelibrary.wiley.com/doi/full-xml/10.1080/00028487.2012.728162 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1080/00028487.2012.728162 |
genre |
Beaver Creek |
genre_facet |
Beaver Creek |
op_source |
Transactions of the American Fisheries Society volume 142, issue 1, page 208-220 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1080/00028487.2012.728162 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
142 |
container_issue |
1 |
container_start_page |
208 |
op_container_end_page |
220 |
_version_ |
1809902585301172224 |