The performance advantage of a high resting metabolic rate in juvenile salmon is habitat dependent

The Journal of Animal Ecology
Donald ReidN B Metcalfe

Abstract

1. Basal levels of metabolism vary significantly among individuals in many taxa, but the effects of this on fitness are generally unknown. Resting metabolic rate (RMR) in juvenile salmon and trout is positively related to dominance status and ability to obtain a feeding territory, but it is not clear how this translates into performance in natural conditions. 2. The relationships between RMR, dominance, territoriality and growth rates of yearling Atlantic salmon Salmo salar were examined in relation to predictability in food supply and habitat complexity, using replicate sections of a large-scale controlled semi-natural stream. 3. Estimated RMR was a strong predictor of dominance, and under conditions of a predictable food supply in a structurally simple habitat, high estimated RMR fish obtained the best feeding territories and grew faster. 4. When the spatial distribution of food was made less predictable, dominant (high estimated RMR) fish were still able to occupy the most profitable feeding locations by periodically moving location to track the changes in food availability, but RMR was no longer a predictor of growth rate. Moreover, when a less predictable food supply was combined with a visually more complex (and realistic...Continue Reading

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Citations

Jun 13, 2013·Trends in Ecology & Evolution·Shaun S KillenPaolo Domenici
Nov 19, 2015·Journal of Fish Biology·N B MetcalfeS S Killen
Nov 19, 2015·Journal of Fish Biology·E J Eliason, A P Farrell
Nov 20, 2013·The Journal of Animal Ecology·Grethe RobertsenSigurd Einum
Jun 14, 2016·Conservation Physiology·Taylor D WardSteven J Cooke
Dec 19, 2014·Biology Letters·Vincent CareauKatherine L Buchanan
May 4, 2016·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Jason R TrebergEva C Enders
Oct 26, 2016·Ecology and Evolution·Peter A BiroFrancesca Santostefano
Oct 24, 2019·The Journal of Animal Ecology·Jean-Michel MatteJames W A Grant
Nov 25, 2016·Behavioral Ecology and Sociobiology·Joacim Näslund, Jörgen I Johnsson
Dec 28, 2018·Biological Reviews of the Cambridge Philosophical Society·Kimberley J MathotShinichi Nakagawa
Jan 16, 2019·Nature Communications·Ingerid J HagenSten Karlsson
Dec 25, 2017·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Ling-Qing ZengShi-Jian Fu
Jul 21, 2017·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Ling-Qing ZengShi-Jian Fu
May 28, 2021·Biological Reviews of the Cambridge Philosophical Society·Kim Birnie-GauvinKim Aarestrup
May 12, 2021·Molecular Ecology·Darryl McLennanNeil B Metcalfe
Jul 14, 2021·BMC Biology·Mark P PolinskiKyle A Garver
Sep 16, 2021·Proceedings. Biological Sciences·Louise C ArcherThomas E Reed
Dec 4, 2021·PloS One·Matilda L AnderssonP Anders Nilsson

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