Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar )
The mechanisms that underlie thermal tolerance in aquatic ectotherms remain unresolved. Triploid fish have been reported to exhibit lower thermal tolerance than diploids, offering a potential model organism to better understand the physiological drivers of thermal tolerance. Here, we compared triplo...
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Online Access: | https://doi.org/10.1242/jeb.166975 http://www.ncbi.nlm.nih.gov/pubmed/29361579 http://ecite.utas.edu.au/131403 |
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ftunivtasecite:oai:ecite.utas.edu.au:131403 2023-05-15T15:30:36+02:00 Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ) Bowden, AJ Andrewartha, SJ Elliott, NG Frappell, PB Clark, TD 2018 application/pdf https://doi.org/10.1242/jeb.166975 http://www.ncbi.nlm.nih.gov/pubmed/29361579 http://ecite.utas.edu.au/131403 en eng Company Of Biologists Ltd http://ecite.utas.edu.au/131403/1/131403 - Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon.pdf http://dx.doi.org/10.1242/jeb.166975 Bowden, AJ and Andrewartha, SJ and Elliott, NG and Frappell, PB and Clark, TD, Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ), Journal of Experimental Biology, 221 Article jeb.166975. ISSN 0022-0949 (2018) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/29361579 http://ecite.utas.edu.au/131403 Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Refereed Article PeerReviewed 2018 ftunivtasecite https://doi.org/10.1242/jeb.166975 2019-12-13T22:29:21Z The mechanisms that underlie thermal tolerance in aquatic ectotherms remain unresolved. Triploid fish have been reported to exhibit lower thermal tolerance than diploids, offering a potential model organism to better understand the physiological drivers of thermal tolerance. Here, we compared triploid and diploid juvenile Atlantic salmon ( Salmo salar ) in freshwater to investigate the proposed link between aerobic capacity and thermal tolerance. We measured specific growth rates (SGR) and resting (aerobic) metabolic rates (RMR) in freshwater at 3, 7 and 9 weeks of acclimation to either 10, 14 or 18C. Additionally, maximum metabolic rates (MMR) were measured at 3 and 7 weeks of acclimation, and critical thermal maxima (CT max ) were measured at 9 weeks. Mass, SGR, and RMR differed between ploidies across all temperatures at the beginning of the acclimation period, but all three metrics converged between ploidies by week 7. Aerobic scope (MMR RMR) remained consistent across ploidies, acclimation temperatures, and time. At 9 weeks, CT max was independent of ploidy, but correlated positively with acclimation temperature despite the similar aerobic scope between acclimation groups. Our findings suggest that acute thermal tolerance is not modulated by aerobic scope, and the altered genome of triploid Atlantic salmon does not translate to reduced thermal tolerance of juvenile fish in freshwater. Article in Journal/Newspaper Atlantic salmon Salmo salar eCite UTAS (University of Tasmania) Journal of Experimental Biology |
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eCite UTAS (University of Tasmania) |
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English |
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Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
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Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture Bowden, AJ Andrewartha, SJ Elliott, NG Frappell, PB Clark, TD Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ) |
topic_facet |
Agricultural and Veterinary Sciences Fisheries Sciences Aquaculture |
description |
The mechanisms that underlie thermal tolerance in aquatic ectotherms remain unresolved. Triploid fish have been reported to exhibit lower thermal tolerance than diploids, offering a potential model organism to better understand the physiological drivers of thermal tolerance. Here, we compared triploid and diploid juvenile Atlantic salmon ( Salmo salar ) in freshwater to investigate the proposed link between aerobic capacity and thermal tolerance. We measured specific growth rates (SGR) and resting (aerobic) metabolic rates (RMR) in freshwater at 3, 7 and 9 weeks of acclimation to either 10, 14 or 18C. Additionally, maximum metabolic rates (MMR) were measured at 3 and 7 weeks of acclimation, and critical thermal maxima (CT max ) were measured at 9 weeks. Mass, SGR, and RMR differed between ploidies across all temperatures at the beginning of the acclimation period, but all three metrics converged between ploidies by week 7. Aerobic scope (MMR RMR) remained consistent across ploidies, acclimation temperatures, and time. At 9 weeks, CT max was independent of ploidy, but correlated positively with acclimation temperature despite the similar aerobic scope between acclimation groups. Our findings suggest that acute thermal tolerance is not modulated by aerobic scope, and the altered genome of triploid Atlantic salmon does not translate to reduced thermal tolerance of juvenile fish in freshwater. |
format |
Article in Journal/Newspaper |
author |
Bowden, AJ Andrewartha, SJ Elliott, NG Frappell, PB Clark, TD |
author_facet |
Bowden, AJ Andrewartha, SJ Elliott, NG Frappell, PB Clark, TD |
author_sort |
Bowden, AJ |
title |
Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ) |
title_short |
Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ) |
title_full |
Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ) |
title_fullStr |
Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ) |
title_full_unstemmed |
Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ) |
title_sort |
negligible differences in metabolism and thermal tolerance between diploid and triploid atlantic salmon ( salmo salar ) |
publisher |
Company Of Biologists Ltd |
publishDate |
2018 |
url |
https://doi.org/10.1242/jeb.166975 http://www.ncbi.nlm.nih.gov/pubmed/29361579 http://ecite.utas.edu.au/131403 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://ecite.utas.edu.au/131403/1/131403 - Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon.pdf http://dx.doi.org/10.1242/jeb.166975 Bowden, AJ and Andrewartha, SJ and Elliott, NG and Frappell, PB and Clark, TD, Negligible differences in metabolism and thermal tolerance between diploid and triploid Atlantic salmon ( Salmo salar ), Journal of Experimental Biology, 221 Article jeb.166975. ISSN 0022-0949 (2018) [Refereed Article] http://www.ncbi.nlm.nih.gov/pubmed/29361579 http://ecite.utas.edu.au/131403 |
op_doi |
https://doi.org/10.1242/jeb.166975 |
container_title |
Journal of Experimental Biology |
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1766361055967051776 |