Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles
Abstract Objective Arctic Grayling Thymallus arcticus are Holarctically distributed, with a single native population in the conterminous United States occurring in the Big Hole River, Montana, where water temperatures can fluctuate throughout the year from 8°C to 18°C. A gradual increase in mean wat...
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crwiley:10.1002/tafs.10453 2024-09-15T17:52:38+00:00 Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles Carrillo‐Longoria, Javier‐Alonso Gaylord, Gibson Andrews, Lukas Powell, Madison National Institutes of Health National Science Foundation 2023 http://dx.doi.org/10.1002/tafs.10453 https://afspubs.onlinelibrary.wiley.com/doi/am-pdf/10.1002/tafs.10453 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10453 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor Transactions of the American Fisheries Society volume 153, issue 1, page 3-22 ISSN 0002-8487 1548-8659 journal-article 2023 crwiley https://doi.org/10.1002/tafs.10453 2024-07-09T04:15:28Z Abstract Objective Arctic Grayling Thymallus arcticus are Holarctically distributed, with a single native population in the conterminous United States occurring in the Big Hole River, Montana, where water temperatures can fluctuate throughout the year from 8°C to 18°C. A gradual increase in mean water temperature has been reported in this river over the past 20 years due to riparian habitat changes and climate change effects. We hypothesized that exposing Arctic Grayling to higher temperatures would result in lower survival, decreased growth, and increased stress responses. Methods Over a 144‐day trial, Arctic Grayling juveniles were subjected to water temperatures ranging from 8°C to 26°C to measure the effects on growth, survival, gene expression, and antioxidant enzyme activity. Result Fish growth increased with increasing water temperature up to 18°C, beyond which survival was reduced. Fish did not survive at temperatures above 22°C. In response to temperatures above 16°C, 3.0‐fold and 1.5‐fold increases in gene expression were observed for superoxide dismutase ( SOD ) and glutathione peroxidase ( GPx ), respectively, but no changes were seen in the gene expression ratio of heat shock protein 70 to heat shock protein 90. Activities of the SOD and GPx enzymes also rose at temperatures above 16°C, indicating heightened oxidative stress. Catalase gene expression and enzyme activity decreased with rising temperatures, suggesting a preference for the GPx pathway, as GPx could also be providing help with lipid peroxidation. An increase in thiobarbituric acid reactive substances was also recorded, which corresponded with rising temperatures. Conclusion Our findings thus underscore the vulnerability of Arctic Grayling to minor changes in water temperature. Further increases in mean water temperature could significantly compromise the survival of Arctic Grayling in the Big Hole River. Article in Journal/Newspaper Arctic grayling Climate change Thymallus arcticus Wiley Online Library Transactions of the American Fisheries Society 153 1 3 22 |
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English |
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Abstract Objective Arctic Grayling Thymallus arcticus are Holarctically distributed, with a single native population in the conterminous United States occurring in the Big Hole River, Montana, where water temperatures can fluctuate throughout the year from 8°C to 18°C. A gradual increase in mean water temperature has been reported in this river over the past 20 years due to riparian habitat changes and climate change effects. We hypothesized that exposing Arctic Grayling to higher temperatures would result in lower survival, decreased growth, and increased stress responses. Methods Over a 144‐day trial, Arctic Grayling juveniles were subjected to water temperatures ranging from 8°C to 26°C to measure the effects on growth, survival, gene expression, and antioxidant enzyme activity. Result Fish growth increased with increasing water temperature up to 18°C, beyond which survival was reduced. Fish did not survive at temperatures above 22°C. In response to temperatures above 16°C, 3.0‐fold and 1.5‐fold increases in gene expression were observed for superoxide dismutase ( SOD ) and glutathione peroxidase ( GPx ), respectively, but no changes were seen in the gene expression ratio of heat shock protein 70 to heat shock protein 90. Activities of the SOD and GPx enzymes also rose at temperatures above 16°C, indicating heightened oxidative stress. Catalase gene expression and enzyme activity decreased with rising temperatures, suggesting a preference for the GPx pathway, as GPx could also be providing help with lipid peroxidation. An increase in thiobarbituric acid reactive substances was also recorded, which corresponded with rising temperatures. Conclusion Our findings thus underscore the vulnerability of Arctic Grayling to minor changes in water temperature. Further increases in mean water temperature could significantly compromise the survival of Arctic Grayling in the Big Hole River. |
author2 |
National Institutes of Health National Science Foundation |
format |
Article in Journal/Newspaper |
author |
Carrillo‐Longoria, Javier‐Alonso Gaylord, Gibson Andrews, Lukas Powell, Madison |
spellingShingle |
Carrillo‐Longoria, Javier‐Alonso Gaylord, Gibson Andrews, Lukas Powell, Madison Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles |
author_facet |
Carrillo‐Longoria, Javier‐Alonso Gaylord, Gibson Andrews, Lukas Powell, Madison |
author_sort |
Carrillo‐Longoria, Javier‐Alonso |
title |
Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles |
title_short |
Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles |
title_full |
Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles |
title_fullStr |
Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles |
title_full_unstemmed |
Effect of temperature on growth, survival, and chronic stress responses of Arctic Grayling juveniles |
title_sort |
effect of temperature on growth, survival, and chronic stress responses of arctic grayling juveniles |
publisher |
Wiley |
publishDate |
2023 |
url |
http://dx.doi.org/10.1002/tafs.10453 https://afspubs.onlinelibrary.wiley.com/doi/am-pdf/10.1002/tafs.10453 https://afspubs.onlinelibrary.wiley.com/doi/pdf/10.1002/tafs.10453 |
genre |
Arctic grayling Climate change Thymallus arcticus |
genre_facet |
Arctic grayling Climate change Thymallus arcticus |
op_source |
Transactions of the American Fisheries Society volume 153, issue 1, page 3-22 ISSN 0002-8487 1548-8659 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#am http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1002/tafs.10453 |
container_title |
Transactions of the American Fisheries Society |
container_volume |
153 |
container_issue |
1 |
container_start_page |
3 |
op_container_end_page |
22 |
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1810294691941318656 |