Brännäs, Eva
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
Abstract
The behaviour during an exploration task and the response to a confinement stress of Arctic charr Salvelinus alpinus were evaluated. Behaviour of individuals during 90 min of exploration was classified into high and low activity. High-activity individuals had higher plasma cortisol levels following stress compared to low-activity individuals. This indicates that high- and low-activity individuals correspond to reactive and proactive stress-coping styles. Further, a pigmentation analysis showed that high-activity individuals had a higher number of carotenoid spots cm(-2) than low-activity individuals. Thus, carotenoid pigmentation, as melanin pigmentation in other salmonids, could be linked to stress-coping style in S. alpinus. (C) 2013 The Fisheries Society of the British Isles
Keywords
activity; confinement stress; stress-coping style
Published in
Journal of Fish Biology
2014, volume: 84, number: 1, pages: 1-9
Publisher: WILEY-BLACKWELL
SLU Authors
Nilsson, Jan
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
Magnhagen, Carin
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
Backström, Tobias
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
- Department of Wildlife, Fish and Environmental Studies, Swedish University of Agricultural Sciences
UKÄ Subject classification
Ecology
Forest Science
Publication identifier
- DOI: https://doi.org/10.1111/jfb.12240
Permanent link to this page (URI)
https://res.slu.se/id/publ/56289