Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon
Abstract Omega‐3 long‐chain polyunsaturated fatty acids ( n − 3 LC‐PUFA) are essential micronutrients for optimal functioning of cellular metabolism and for somatic growth of all vertebrates including fishes. In addition, n − 3 LC‐PUFA could also play a key role in response of fishes and other ectot...
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Online Access: | http://dx.doi.org/10.1111/1365-2435.13860 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13860 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.13860 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13860 |
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crwiley:10.1111/1365-2435.13860 2024-09-15T17:56:34+00:00 Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon Závorka, Libor Crespel, Amelie Dawson, Neal J. Papatheodoulou, Magdalene Killen, Shaun S. Kainz, Martin J. Austrian Science Fund 2021 http://dx.doi.org/10.1111/1365-2435.13860 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13860 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.13860 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13860 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Functional Ecology volume 35, issue 9, page 1960-1971 ISSN 0269-8463 1365-2435 journal-article 2021 crwiley https://doi.org/10.1111/1365-2435.13860 2024-08-13T04:13:09Z Abstract Omega‐3 long‐chain polyunsaturated fatty acids ( n − 3 LC‐PUFA) are essential micronutrients for optimal functioning of cellular metabolism and for somatic growth of all vertebrates including fishes. In addition, n − 3 LC‐PUFA could also play a key role in response of fishes and other ectothermic vertebrates to changing temperatures. An important, but largely overlooked, consequence of climate change is the reduced availability of dietary n − 3 LC‐PUFA in aquatic food webs. Changes in availability of dietary n − 3 LC‐PUFA have recently been proposed as a major driver of novel adaptations and diversification of consumers. Yet, there is only limited knowledge about how n − 3 LC‐PUFA depletion in aquatic food webs will affect the performance of wild fishes. Here we combine biochemistry and physiology at the cellular level with physiological and cognitive processes at the whole‐animal level to test how ecologically relevant deprivation of n − 3 LC‐PUFA affects performance of wild juvenile Atlantic salmon Salmo salar . We found that juvenile salmon had a limited capacity to maintain the fatty acid profile of both muscle and brain under an n − 3 LC‐PUFA‐deficient diet. Despite these findings, brain tissues showed remarkable functional stability in mitochondrial metabolism, and we found no effect of diet on learning ability. However, we found that mitochondrial efficiency in muscles and the somatic growth were reduced under an n − 3 LC‐PUFA‐deficient diet. Importantly, we discovered that the somatic growth of juvenile salmon within both treatments decreased with increasing rate of DHA synthesis and retention. Since DHA is essential for functioning of cellular metabolism, which together with body size are traits closely related to fitness of wild fishes, we suggest that the trade‐off between growth rate and accumulation of DHA could play a critical role in resilience of juvenile salmon to the ongoing rapid environmental change. A free Plain Language Summary can be found within the Supporting Information of this ... Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Functional Ecology 35 9 1960 1971 |
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Wiley Online Library |
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crwiley |
language |
English |
description |
Abstract Omega‐3 long‐chain polyunsaturated fatty acids ( n − 3 LC‐PUFA) are essential micronutrients for optimal functioning of cellular metabolism and for somatic growth of all vertebrates including fishes. In addition, n − 3 LC‐PUFA could also play a key role in response of fishes and other ectothermic vertebrates to changing temperatures. An important, but largely overlooked, consequence of climate change is the reduced availability of dietary n − 3 LC‐PUFA in aquatic food webs. Changes in availability of dietary n − 3 LC‐PUFA have recently been proposed as a major driver of novel adaptations and diversification of consumers. Yet, there is only limited knowledge about how n − 3 LC‐PUFA depletion in aquatic food webs will affect the performance of wild fishes. Here we combine biochemistry and physiology at the cellular level with physiological and cognitive processes at the whole‐animal level to test how ecologically relevant deprivation of n − 3 LC‐PUFA affects performance of wild juvenile Atlantic salmon Salmo salar . We found that juvenile salmon had a limited capacity to maintain the fatty acid profile of both muscle and brain under an n − 3 LC‐PUFA‐deficient diet. Despite these findings, brain tissues showed remarkable functional stability in mitochondrial metabolism, and we found no effect of diet on learning ability. However, we found that mitochondrial efficiency in muscles and the somatic growth were reduced under an n − 3 LC‐PUFA‐deficient diet. Importantly, we discovered that the somatic growth of juvenile salmon within both treatments decreased with increasing rate of DHA synthesis and retention. Since DHA is essential for functioning of cellular metabolism, which together with body size are traits closely related to fitness of wild fishes, we suggest that the trade‐off between growth rate and accumulation of DHA could play a critical role in resilience of juvenile salmon to the ongoing rapid environmental change. A free Plain Language Summary can be found within the Supporting Information of this ... |
author2 |
Austrian Science Fund |
format |
Article in Journal/Newspaper |
author |
Závorka, Libor Crespel, Amelie Dawson, Neal J. Papatheodoulou, Magdalene Killen, Shaun S. Kainz, Martin J. |
spellingShingle |
Závorka, Libor Crespel, Amelie Dawson, Neal J. Papatheodoulou, Magdalene Killen, Shaun S. Kainz, Martin J. Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon |
author_facet |
Závorka, Libor Crespel, Amelie Dawson, Neal J. Papatheodoulou, Magdalene Killen, Shaun S. Kainz, Martin J. |
author_sort |
Závorka, Libor |
title |
Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon |
title_short |
Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon |
title_full |
Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon |
title_fullStr |
Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon |
title_full_unstemmed |
Climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon |
title_sort |
climate change‐induced deprivation of dietary essential fatty acids can reduce growth and mitochondrial efficiency of wild juvenile salmon |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/1365-2435.13860 https://onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13860 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/1365-2435.13860 https://besjournals.onlinelibrary.wiley.com/doi/pdf/10.1111/1365-2435.13860 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Functional Ecology volume 35, issue 9, page 1960-1971 ISSN 0269-8463 1365-2435 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1111/1365-2435.13860 |
container_title |
Functional Ecology |
container_volume |
35 |
container_issue |
9 |
container_start_page |
1960 |
op_container_end_page |
1971 |
_version_ |
1810432767769444352 |