Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation
Juvenile Atlantic salmon Salmo salar were shown experimentally to make adaptive behavioural decisions as a short‐term response to changes in food availability and predation risk. Restricted food availability caused an increase in activity, whereas activity was decreased under predation threat. Altho...
Published in: | Journal of Fish Biology |
---|---|
Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2003
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1046/j.1095-8649.2003.00228.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1095-8649.2003.00228.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1095-8649.2003.00228.x |
id |
crwiley:10.1046/j.1095-8649.2003.00228.x |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1046/j.1095-8649.2003.00228.x 2024-09-15T17:55:48+00:00 Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation Vehanen, T. 2003 http://dx.doi.org/10.1046/j.1095-8649.2003.00228.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1095-8649.2003.00228.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1095-8649.2003.00228.x en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Journal of Fish Biology volume 63, issue 4, page 1034-1045 ISSN 0022-1112 1095-8649 journal-article 2003 crwiley https://doi.org/10.1046/j.1095-8649.2003.00228.x 2024-08-13T04:17:34Z Juvenile Atlantic salmon Salmo salar were shown experimentally to make adaptive behavioural decisions as a short‐term response to changes in food availability and predation risk. Restricted food availability caused an increase in activity, whereas activity was decreased under predation threat. Although changes in activity were not more pronounced among the hunger‐motivated fish, suggesting that they were not balancing risk and hunger, hungrier fish spent less time in refuges in the presence of a predator, indicating that they were more willing to take risks than satiated fish. Aggressive interactions among juvenile Atlantic salmon were decreased by predation threat, but were highest when predators were absent and food was abundant. Article in Journal/Newspaper Atlantic salmon Salmo salar Wiley Online Library Journal of Fish Biology 63 4 1034 1045 |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Juvenile Atlantic salmon Salmo salar were shown experimentally to make adaptive behavioural decisions as a short‐term response to changes in food availability and predation risk. Restricted food availability caused an increase in activity, whereas activity was decreased under predation threat. Although changes in activity were not more pronounced among the hunger‐motivated fish, suggesting that they were not balancing risk and hunger, hungrier fish spent less time in refuges in the presence of a predator, indicating that they were more willing to take risks than satiated fish. Aggressive interactions among juvenile Atlantic salmon were decreased by predation threat, but were highest when predators were absent and food was abundant. |
format |
Article in Journal/Newspaper |
author |
Vehanen, T. |
spellingShingle |
Vehanen, T. Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation |
author_facet |
Vehanen, T. |
author_sort |
Vehanen, T. |
title |
Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation |
title_short |
Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation |
title_full |
Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation |
title_fullStr |
Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation |
title_full_unstemmed |
Adaptive flexibility in the behaviour of juvenile Atlantic salmon: short‐term responses to food availability and threat from predation |
title_sort |
adaptive flexibility in the behaviour of juvenile atlantic salmon: short‐term responses to food availability and threat from predation |
publisher |
Wiley |
publishDate |
2003 |
url |
http://dx.doi.org/10.1046/j.1095-8649.2003.00228.x https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1046%2Fj.1095-8649.2003.00228.x https://onlinelibrary.wiley.com/doi/pdf/10.1046/j.1095-8649.2003.00228.x |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_source |
Journal of Fish Biology volume 63, issue 4, page 1034-1045 ISSN 0022-1112 1095-8649 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1046/j.1095-8649.2003.00228.x |
container_title |
Journal of Fish Biology |
container_volume |
63 |
container_issue |
4 |
container_start_page |
1034 |
op_container_end_page |
1045 |
_version_ |
1810432036239835136 |