ArticleJournal of fish biology2022
Social isolation affects intra-specific interaction behaviour and reduces the size of the cerebellar brain region in juvenile Atlantic salmon Salmo salar.
Article in Journal of fish biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Coercive mating has no impact on spatial learning, cognitive flexibility, and fecundity in female porthole livebearers (Poeciliopsis gracilis).Journal of fish biology · 2025Article
- Beyond the mosaic model of brain evolution: Rearing environment defines local and global plasticity.Annals of the New York Academy of Sciences · 2024Article
- Ontogeny and social context regulate the circadian activity patterns of Lake Malawi cichlids.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2024Article
- Multiple faces of stress in the zebrafish (Frontiers in physiology · 2024Article
- 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 · 2022Article
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Authors and funding
4 authors.
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Abstract
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.
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