Coping with a changing environment: The effects of early life stress
Ongoing rapid domestication of Atlantic salmon implies that individuals are subjected to evolutionarily novel stressors encountered under conditions of artificial rearing, requiring new levels and directions of flexibility in physiological and behavioural coping mechanisms. Phenotypic plasticity to...
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Online Access: | http://hdl.handle.net/11250/2426683 https://doi.org/10.1098/rsos.160382 |
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ftntnutrondheimi:oai:ntnuopen.ntnu.no:11250/2426683 2023-05-15T15:32:34+02:00 Coping with a changing environment: The effects of early life stress Vindas, Marco Antonio Madaro, Angelico Fraser, Thomas Höglund, Erik Olsen, Rolf Erik Øverli, Øyvind Kristiansen, Tore S 2016-11-28T14:16:14Z http://hdl.handle.net/11250/2426683 https://doi.org/10.1098/rsos.160382 eng eng The Royal Society Royal Society Open Science 2016, 3:160382(10) urn:issn:2054-5703 http://hdl.handle.net/11250/2426683 https://doi.org/10.1098/rsos.160382 cristin:1403808 http://creativecommons.org/licenses/by/4.0/ CC-BY 10 Royal Society Open Science Peer reviewed Journal article 2016 ftntnutrondheimi https://doi.org/10.1098/rsos.160382 2019-09-17T06:52:04Z Ongoing rapid domestication of Atlantic salmon implies that individuals are subjected to evolutionarily novel stressors encountered under conditions of artificial rearing, requiring new levels and directions of flexibility in physiological and behavioural coping mechanisms. Phenotypic plasticity to environmental changes is particularly evident at early life stages. We investigated the performance of salmon, previously subjected to an unpredictable chronic stress (UCS) treatment at an early age (10 month old parr), over several months and life stages. The UCS fish showed overall higher specific growth rates compared with unstressed controls after smoltification, a particularly challenging life stage, and after seawater transfer. Furthermore, subjecting fish to acute stress at the end of the experiment, we found that UCS groups had an overall lower hypothalamic catecholaminergic and brain stem serotonergic response to stress compared with control groups. In addition, serotonergic activity was negatively correlated with final growth rates, which implies that serotonin responsive individuals have growth disadvantages. Altogether, our results may imply that a subdued monoaminergic response in stressful farming environments may be beneficial, because in such situations individuals may be able to reallocate energy from stress responses into other life processes, such as growth. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. Article in Journal/Newspaper Atlantic salmon NTNU Open Archive (Norwegian University of Science and Technology) Royal Society Open Science 3 10 160382 |
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Open Polar |
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NTNU Open Archive (Norwegian University of Science and Technology) |
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ftntnutrondheimi |
language |
English |
description |
Ongoing rapid domestication of Atlantic salmon implies that individuals are subjected to evolutionarily novel stressors encountered under conditions of artificial rearing, requiring new levels and directions of flexibility in physiological and behavioural coping mechanisms. Phenotypic plasticity to environmental changes is particularly evident at early life stages. We investigated the performance of salmon, previously subjected to an unpredictable chronic stress (UCS) treatment at an early age (10 month old parr), over several months and life stages. The UCS fish showed overall higher specific growth rates compared with unstressed controls after smoltification, a particularly challenging life stage, and after seawater transfer. Furthermore, subjecting fish to acute stress at the end of the experiment, we found that UCS groups had an overall lower hypothalamic catecholaminergic and brain stem serotonergic response to stress compared with control groups. In addition, serotonergic activity was negatively correlated with final growth rates, which implies that serotonin responsive individuals have growth disadvantages. Altogether, our results may imply that a subdued monoaminergic response in stressful farming environments may be beneficial, because in such situations individuals may be able to reallocate energy from stress responses into other life processes, such as growth. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited. |
format |
Article in Journal/Newspaper |
author |
Vindas, Marco Antonio Madaro, Angelico Fraser, Thomas Höglund, Erik Olsen, Rolf Erik Øverli, Øyvind Kristiansen, Tore S |
spellingShingle |
Vindas, Marco Antonio Madaro, Angelico Fraser, Thomas Höglund, Erik Olsen, Rolf Erik Øverli, Øyvind Kristiansen, Tore S Coping with a changing environment: The effects of early life stress |
author_facet |
Vindas, Marco Antonio Madaro, Angelico Fraser, Thomas Höglund, Erik Olsen, Rolf Erik Øverli, Øyvind Kristiansen, Tore S |
author_sort |
Vindas, Marco Antonio |
title |
Coping with a changing environment: The effects of early life stress |
title_short |
Coping with a changing environment: The effects of early life stress |
title_full |
Coping with a changing environment: The effects of early life stress |
title_fullStr |
Coping with a changing environment: The effects of early life stress |
title_full_unstemmed |
Coping with a changing environment: The effects of early life stress |
title_sort |
coping with a changing environment: the effects of early life stress |
publisher |
The Royal Society |
publishDate |
2016 |
url |
http://hdl.handle.net/11250/2426683 https://doi.org/10.1098/rsos.160382 |
genre |
Atlantic salmon |
genre_facet |
Atlantic salmon |
op_source |
10 Royal Society Open Science |
op_relation |
Royal Society Open Science 2016, 3:160382(10) urn:issn:2054-5703 http://hdl.handle.net/11250/2426683 https://doi.org/10.1098/rsos.160382 cristin:1403808 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1098/rsos.160382 |
container_title |
Royal Society Open Science |
container_volume |
3 |
container_issue |
10 |
container_start_page |
160382 |
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1766363057636769792 |