Skip to main content
Research article - Peer-reviewed, 2014

Behaviour, physiology and carotenoid pigmentation in Arctic charr Salvelinus alpinus

Brännäs, Eva; Nilsson, Jan; Magnhagen, Carin; Backström, Tobias

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

Authors' information

Brännäs, Eva
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies
Nilsson, Jan
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies
Backström, Tobias
Swedish University of Agricultural Sciences, Department of Wildlife, Fish and Environmental Studies

UKÄ Subject classification

Ecology
Forest Science

Publication Identifiers

DOI: https://doi.org/10.1111/jfb.12240

URI (permanent link to this page)

https://res.slu.se/id/publ/56289