Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration
Consistent individual differences in behaviour have been well documented in a variety of animal taxa, but surprisingly little is known about the fitness and life-history consequences of such individual variation. In wild salmonids, the timing of fry emergence from gravel spawning nests has been sugg...
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Uppsala universitet, Fysiologi
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ftuppsalauniv:oai:DiVA.org:uu-252010 2023-05-15T15:31:11+02:00 Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration Larsen, Martin H. Johnsson, Jorgen I. Winberg, Svante Wilson, Alexander D. M. Hammenstig, David Thörnqvist, Per-Ove Midwood, Jonathan D. Aarestrup, Kim Hoglund, Erik 2015 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-252010 https://doi.org/10.1371/journal.pone.0119127 eng eng Uppsala universitet, Fysiologi PLOS ONE, 2015, 10:3, http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-252010 doi:10.1371/journal.pone.0119127 PMID 25747862 ISI:000350689400046 info:eu-repo/semantics/openAccess Physiology Fysiologi Article in journal info:eu-repo/semantics/article text 2015 ftuppsalauniv https://doi.org/10.1371/journal.pone.0119127 2023-02-23T21:56:00Z Consistent individual differences in behaviour have been well documented in a variety of animal taxa, but surprisingly little is known about the fitness and life-history consequences of such individual variation. In wild salmonids, the timing of fry emergence from gravel spawning nests has been suggested to be coupled with individual behavioural traits. Here, we further investigate the link between timing of spawning nest emergence and behaviour of Atlantic salmon (Salmo salar), test effects of social rearing environment on behavioural traits in fish with different emergence times, and assess whether behavioural traits measured in the laboratory predict growth, survival, and migration status in the wild. Atlantic salmon fry were sorted with respect to emergence time from artificial spawning nest into three groups: early, intermediate, and late. These emergence groups were hatchery-reared separately or in co-culture for four months to test effects of social rearing environment on behavioural traits. Twenty fish from each of the six treatment groups were then subjected to three individual-based behavioural tests: basal locomotor activity, boldness, and escape response. Following behavioural characterization, the fish were released into a near-natural experimental stream. Results showed differences in escape behaviour between emergence groups in a net restraining test, but the social rearing environment did not affect individual behavioural expression. Emergence time and social environment had no significant effects on survival, growth, and migration status in the stream, although migration propensity was 1.4 to 1.9 times higher for early emerging individuals that were reared separately. In addition, despite individuals showing considerable variation in behaviour across treatment groups, this was not translated into differences in growth, survival, and migration status. Hence, our study adds to the view that fitness (i.e., growth and survival) and life-history predictions from laboratory measures of behaviour ... Article in Journal/Newspaper Atlantic salmon Salmo salar Uppsala University: Publications (DiVA) PLOS ONE 10 3 e0119127 |
institution |
Open Polar |
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Uppsala University: Publications (DiVA) |
op_collection_id |
ftuppsalauniv |
language |
English |
topic |
Physiology Fysiologi |
spellingShingle |
Physiology Fysiologi Larsen, Martin H. Johnsson, Jorgen I. Winberg, Svante Wilson, Alexander D. M. Hammenstig, David Thörnqvist, Per-Ove Midwood, Jonathan D. Aarestrup, Kim Hoglund, Erik Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration |
topic_facet |
Physiology Fysiologi |
description |
Consistent individual differences in behaviour have been well documented in a variety of animal taxa, but surprisingly little is known about the fitness and life-history consequences of such individual variation. In wild salmonids, the timing of fry emergence from gravel spawning nests has been suggested to be coupled with individual behavioural traits. Here, we further investigate the link between timing of spawning nest emergence and behaviour of Atlantic salmon (Salmo salar), test effects of social rearing environment on behavioural traits in fish with different emergence times, and assess whether behavioural traits measured in the laboratory predict growth, survival, and migration status in the wild. Atlantic salmon fry were sorted with respect to emergence time from artificial spawning nest into three groups: early, intermediate, and late. These emergence groups were hatchery-reared separately or in co-culture for four months to test effects of social rearing environment on behavioural traits. Twenty fish from each of the six treatment groups were then subjected to three individual-based behavioural tests: basal locomotor activity, boldness, and escape response. Following behavioural characterization, the fish were released into a near-natural experimental stream. Results showed differences in escape behaviour between emergence groups in a net restraining test, but the social rearing environment did not affect individual behavioural expression. Emergence time and social environment had no significant effects on survival, growth, and migration status in the stream, although migration propensity was 1.4 to 1.9 times higher for early emerging individuals that were reared separately. In addition, despite individuals showing considerable variation in behaviour across treatment groups, this was not translated into differences in growth, survival, and migration status. Hence, our study adds to the view that fitness (i.e., growth and survival) and life-history predictions from laboratory measures of behaviour ... |
format |
Article in Journal/Newspaper |
author |
Larsen, Martin H. Johnsson, Jorgen I. Winberg, Svante Wilson, Alexander D. M. Hammenstig, David Thörnqvist, Per-Ove Midwood, Jonathan D. Aarestrup, Kim Hoglund, Erik |
author_facet |
Larsen, Martin H. Johnsson, Jorgen I. Winberg, Svante Wilson, Alexander D. M. Hammenstig, David Thörnqvist, Per-Ove Midwood, Jonathan D. Aarestrup, Kim Hoglund, Erik |
author_sort |
Larsen, Martin H. |
title |
Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration |
title_short |
Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration |
title_full |
Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration |
title_fullStr |
Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration |
title_full_unstemmed |
Effects of Emergence Time and Early Social Rearing Environment on Behaviour of Atlantic Salmon : Consequences for Juvenile Fitness and Smolt Migration |
title_sort |
effects of emergence time and early social rearing environment on behaviour of atlantic salmon : consequences for juvenile fitness and smolt migration |
publisher |
Uppsala universitet, Fysiologi |
publishDate |
2015 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-252010 https://doi.org/10.1371/journal.pone.0119127 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
PLOS ONE, 2015, 10:3, http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-252010 doi:10.1371/journal.pone.0119127 PMID 25747862 ISI:000350689400046 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1371/journal.pone.0119127 |
container_title |
PLOS ONE |
container_volume |
10 |
container_issue |
3 |
container_start_page |
e0119127 |
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