Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon
Atlantic salmon salmo salar L. parr were reared for 3 months under standard hatchery conditions or in a structurally enriched tank (containing plants, rocks and novel objects). Half of each of these fish had prior exposure to live prey in the form of live bloodworm while the other half were fed hatc...
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crwiley:10.1111/j.1095-8649.2003.00208.x 2024-06-23T07:51:18+00:00 Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon Brown, C. Davidson, T. Laland, K. 2003 http://dx.doi.org/10.1111/j.1095-8649.2003.00208.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.00208.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.00208.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 63, issue s1, page 187-196 ISSN 0022-1112 1095-8649 journal-article 2003 crwiley https://doi.org/10.1111/j.1095-8649.2003.00208.x 2024-06-11T04:47:42Z Atlantic salmon salmo salar L. parr were reared for 3 months under standard hatchery conditions or in a structurally enriched tank (containing plants, rocks and novel objects). Half of each of these fish had prior exposure to live prey in the form of live bloodworm while the other half were fed hatchery‐pellets. After 12 days all fish were tested on a novel live prey item (brine shrimp). A significant interaction between the two factors (prior exposure to live prey and rearing condition) revealed that foraging performance was only enhanced in fish that had been reared in a complex environment and exposed to live prey. It appears that the ability to generalize from one live prey type to another is only enhanced in fish that had been reared in an enriched environment. The findings support the assertion that the provision of enriched environments in combination with exposure to live prey prior to release may significantly improve the post‐release survival rates of hatchery‐reared fishes. As both the environmental enrichment and the prior foraging experience procedures were comparatively simple, the provision of such pre‐release experiences are likely to prove cost effective to hatcheries. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 63 187 196 |
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Open Polar |
collection |
Wiley Online Library |
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crwiley |
language |
English |
description |
Atlantic salmon salmo salar L. parr were reared for 3 months under standard hatchery conditions or in a structurally enriched tank (containing plants, rocks and novel objects). Half of each of these fish had prior exposure to live prey in the form of live bloodworm while the other half were fed hatchery‐pellets. After 12 days all fish were tested on a novel live prey item (brine shrimp). A significant interaction between the two factors (prior exposure to live prey and rearing condition) revealed that foraging performance was only enhanced in fish that had been reared in a complex environment and exposed to live prey. It appears that the ability to generalize from one live prey type to another is only enhanced in fish that had been reared in an enriched environment. The findings support the assertion that the provision of enriched environments in combination with exposure to live prey prior to release may significantly improve the post‐release survival rates of hatchery‐reared fishes. As both the environmental enrichment and the prior foraging experience procedures were comparatively simple, the provision of such pre‐release experiences are likely to prove cost effective to hatcheries. |
format |
Article in Journal/Newspaper |
author |
Brown, C. Davidson, T. Laland, K. |
spellingShingle |
Brown, C. Davidson, T. Laland, K. Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon |
author_facet |
Brown, C. Davidson, T. Laland, K. |
author_sort |
Brown, C. |
title |
Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon |
title_short |
Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon |
title_full |
Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon |
title_fullStr |
Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon |
title_full_unstemmed |
Environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared Atlantic salmon |
title_sort |
environmental enrichment and prior experience of live prey improve foraging behaviour in hatchery‐reared atlantic salmon |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1111/j.1095-8649.2003.00208.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fj.1095-8649.2003.00208.x https://onlinelibrary.wiley.com/doi/pdf/10.1111/j.1095-8649.2003.00208.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 63, issue s1, page 187-196 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/j.1095-8649.2003.00208.x |
container_title |
Journal of Fish Biology |
container_volume |
63 |
container_start_page |
187 |
op_container_end_page |
196 |
_version_ |
1802642349697794048 |