Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar
The social environment can affect the development of behavioural phenotypes in fish, and it is important to understand such effects when rearing fish in artificial environments. Here, the authors test the effects of spatial isolation on social interaction propensity and brain development in hatchery...
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ftslunivuppsala:oai:pub.epsilon.slu.se:28502 2023-05-15T15:31:09+02:00 Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar Guo, Haoyu Näslund, Joacim Thomassen, Søren Larsen, Martin H. 2022 application/pdf https://pub.epsilon.slu.se/28502/ https://pub.epsilon.slu.se/28502/1/guo-h-et-al-20220822.pdf en eng eng https://pub.epsilon.slu.se/28502/1/guo-h-et-al-20220822.pdf Guo, Haoyu and Näslund, Joacim and Thomassen, Søren and Larsen, Martin H. (2022). Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar. Journal of Fish Biology [Research article] Fish and Aquacultural Science Fish and Wildlife Management Research article NonPeerReviewed 2022 ftslunivuppsala 2022-08-25T16:13:50Z The social environment can affect the development of behavioural phenotypes in fish, and it is important to understand such effects when rearing fish in artificial environments. Here, the authors test the effects of spatial isolation on social interaction propensity and brain development in hatchery-reared Atlantic salmon Salmo salar L. Salmon reared in isolation generally stayed further away from a conspecific in a standardized intruder test than conspecifics reared together in groups. Isolated salmon also tended to be more active in an intruder test, albeit non-significantly so, but this pattern was not detected in open-field tests without an intruding conspecific. The cerebellar brain region was relatively smaller in isolated salmon, suggesting that the brain was developing differently in these fish. Therefore, some features of the behavioural and neural phenotype are affected by rearing in isolation. These effects should be considered when rearing salmon, particularly for experimental purposes as it may affect results of laboratory studies on behavioural expression and brain size. Article in Journal/Newspaper Atlantic salmon Salmo salar Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
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Open Polar |
collection |
Swedish University of Agricultural Sciences (SLU): Epsilon Open Archive |
op_collection_id |
ftslunivuppsala |
language |
English |
topic |
Fish and Aquacultural Science Fish and Wildlife Management |
spellingShingle |
Fish and Aquacultural Science Fish and Wildlife Management Guo, Haoyu Näslund, Joacim Thomassen, Søren Larsen, Martin H. Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar |
topic_facet |
Fish and Aquacultural Science Fish and Wildlife Management |
description |
The social environment can affect the development of behavioural phenotypes in fish, and it is important to understand such effects when rearing fish in artificial environments. Here, the authors test the effects of spatial isolation on social interaction propensity and brain development in hatchery-reared Atlantic salmon Salmo salar L. Salmon reared in isolation generally stayed further away from a conspecific in a standardized intruder test than conspecifics reared together in groups. Isolated salmon also tended to be more active in an intruder test, albeit non-significantly so, but this pattern was not detected in open-field tests without an intruding conspecific. The cerebellar brain region was relatively smaller in isolated salmon, suggesting that the brain was developing differently in these fish. Therefore, some features of the behavioural and neural phenotype are affected by rearing in isolation. These effects should be considered when rearing salmon, particularly for experimental purposes as it may affect results of laboratory studies on behavioural expression and brain size. |
format |
Article in Journal/Newspaper |
author |
Guo, Haoyu Näslund, Joacim Thomassen, Søren Larsen, Martin H. |
author_facet |
Guo, Haoyu Näslund, Joacim Thomassen, Søren Larsen, Martin H. |
author_sort |
Guo, Haoyu |
title |
Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar |
title_short |
Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar |
title_full |
Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar |
title_fullStr |
Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar |
title_full_unstemmed |
Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar |
title_sort |
social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile atlantic salmon salmo salar |
publishDate |
2022 |
url |
https://pub.epsilon.slu.se/28502/ https://pub.epsilon.slu.se/28502/1/guo-h-et-al-20220822.pdf |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
https://pub.epsilon.slu.se/28502/1/guo-h-et-al-20220822.pdf Guo, Haoyu and Näslund, Joacim and Thomassen, Søren and Larsen, Martin H. (2022). Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar. Journal of Fish Biology [Research article] |
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