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Dominance and stress signalling of carotenoid pigmentation in Arctic charr (Salvelinus alpinus): Lateralization effects?

Backström, Tobias and Heynen, Martina and Brännäs, Eva and Nilsson, Jan and Magnhagen, Carin (2015). Dominance and stress signalling of carotenoid pigmentation in Arctic charr (Salvelinus alpinus): Lateralization effects? Physiology & behavior. 138, 52-57
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Official URL: http://dx.doi.org/10.1016/j.physbeh.2014.10.003

Abstract

Social conflicts are usually solved by agonistic interactions where animals use cues to signal dominance or subordinance. Pigmentation change is a common cue used for signalling. In our study, the involvement of carotenoid-based pigmentation in signalling was investigated in juvenile Arctic charr (Salvelinus alpinus). Size-matched pairs were analysed for pigmentation both before and after being tested for competitive ability. We found that dominant individuals had fewer carotenoid-based spots on the right and left sides as well as lower plasma cortisol levels compared to subordinate individuals. Further, the number of spots on both sides was positively associated with plasma cortisol levels. These results indicate that carotenoid-based pigmentation in Arctic charr signals dominance and stress coping style. Further, it also appears as if carotenoid-based pigmentation is lateralized in Arctic charr, and that the right side signals aggression and dominance whereas the left side signals stress responsiveness.

Authors/Creators:Backström, Tobias and Heynen, Martina and Brännäs, Eva and Nilsson, Jan and Magnhagen, Carin
Title:Dominance and stress signalling of carotenoid pigmentation in Arctic charr (Salvelinus alpinus): Lateralization effects?
Series/Journal:Physiology & behavior (0031-9384)
Year of publishing :2015
Volume:138
Page range:52-57
Number of Pages:6
Publisher:Elsevier
ISSN:0031-9384
Language:English
Publication Type:Journal article
Refereed:Yes
Article category:Scientific peer reviewed
Version:Accepted version
Full Text Status:Public
Agris subject categories.:M Aquatic sciences and fisheries > M40 Aquatic ecology
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
(A) Swedish standard research categories 2011 > 4 Agricultural Sciences > 401 Agricultural, Forestry and Fisheries > Fish and Aquacultural Science
Agrovoc terms:aggressive behaviour, carotenoids, dominance of animals, pigmentation, salvelinus alpinus
Keywords:aggression, carotenoid, dominance, lateralization, pigmentation, stress coping style
URN:NBN:urn:nbn:se:slu:epsilon-e-2822
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-2822
Additional ID:
Type of IDID
Web of Science (WoS)000348882900007
ID Code:12472
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:04 Aug 2015 08:05
Metadata Last Modified:07 Mar 2016 10:30

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