Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar )
Successful transitions from relying on yolk to exogenous feeding may be strongly influenced by temperature conditions experienced both during embryonic development, through effects on juvenile phenotype, and during initiation of feeding. Here we simultaneously assess these two effects of temperature...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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crcansciencepubl:10.1139/f2011-056 2023-12-17T10:27:18+01:00 Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar ) Skoglund, Helge Einum, Sigurd Forseth, Torbjørn Barlaup, Bjørn Torgeir 2011 http://dx.doi.org/10.1139/f2011-056 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2011-056 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2011-056 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 68, issue 8, page 1470-1479 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2011 crcansciencepubl https://doi.org/10.1139/f2011-056 2023-11-19T13:39:07Z Successful transitions from relying on yolk to exogenous feeding may be strongly influenced by temperature conditions experienced both during embryonic development, through effects on juvenile phenotype, and during initiation of feeding. Here we simultaneously assess these two effects of temperature treatments (2, 5, 8, and 12 °C) in Atlantic salmon ( Salmo salar ). Fry emerging from low incubation temperatures were smaller and had metabolized more energy prior to emergence, but had larger yolk sacs and higher mass specific energy levels, than those experiencing higher temperatures. After emergence, activity, feeding, and growth increased significantly with increasing temperature, but fry were able to initiate feeding and maintain positive growth at all four temperatures. Larger energy stores may provide an advantage when emerging at cold temperatures with a low potential for feeding activity, whereas having a large body size, which is primarily of importance in competitive interactions, may be less important owing to cryptic feeding and sheltering at low temperatures. However, the adaptive significance of the observed phenotypic response to incubation temperature remains untested. Article in Journal/Newspaper Atlantic salmon Salmo salar Canadian Science Publishing (via Crossref) Canadian Journal of Fisheries and Aquatic Sciences 68 8 1470 1479 |
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Open Polar |
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Canadian Science Publishing (via Crossref) |
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English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
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Aquatic Science Ecology, Evolution, Behavior and Systematics Skoglund, Helge Einum, Sigurd Forseth, Torbjørn Barlaup, Bjørn Torgeir Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar ) |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Successful transitions from relying on yolk to exogenous feeding may be strongly influenced by temperature conditions experienced both during embryonic development, through effects on juvenile phenotype, and during initiation of feeding. Here we simultaneously assess these two effects of temperature treatments (2, 5, 8, and 12 °C) in Atlantic salmon ( Salmo salar ). Fry emerging from low incubation temperatures were smaller and had metabolized more energy prior to emergence, but had larger yolk sacs and higher mass specific energy levels, than those experiencing higher temperatures. After emergence, activity, feeding, and growth increased significantly with increasing temperature, but fry were able to initiate feeding and maintain positive growth at all four temperatures. Larger energy stores may provide an advantage when emerging at cold temperatures with a low potential for feeding activity, whereas having a large body size, which is primarily of importance in competitive interactions, may be less important owing to cryptic feeding and sheltering at low temperatures. However, the adaptive significance of the observed phenotypic response to incubation temperature remains untested. |
format |
Article in Journal/Newspaper |
author |
Skoglund, Helge Einum, Sigurd Forseth, Torbjørn Barlaup, Bjørn Torgeir |
author_facet |
Skoglund, Helge Einum, Sigurd Forseth, Torbjørn Barlaup, Bjørn Torgeir |
author_sort |
Skoglund, Helge |
title |
Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar ) |
title_short |
Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar ) |
title_full |
Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar ) |
title_fullStr |
Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar ) |
title_full_unstemmed |
Phenotypic plasticity in physiological status at emergence from nests as a response to temperature in Atlantic salmon ( Salmo salar ) |
title_sort |
phenotypic plasticity in physiological status at emergence from nests as a response to temperature in atlantic salmon ( salmo salar ) |
publisher |
Canadian Science Publishing |
publishDate |
2011 |
url |
http://dx.doi.org/10.1139/f2011-056 http://www.nrcresearchpress.com/doi/full-xml/10.1139/f2011-056 http://www.nrcresearchpress.com/doi/pdf/10.1139/f2011-056 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 68, issue 8, page 1470-1479 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/f2011-056 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
container_volume |
68 |
container_issue |
8 |
container_start_page |
1470 |
op_container_end_page |
1479 |
_version_ |
1785579120961257472 |