Data/hora: 06/06/2024 10:05:59

Provedor de dados: | 5
País: | France
Título: | Aerobic scope explains individual variation in feeding capacity
Autores: | Auer, Sonya K.; Salin, Karine; Anderson, Graeme J.; Metcalfe, Neil B.
Data: | 2015-11
Ano: | 2015
Palavras-chave: | Energy metabolism; Fitness; Food intake; Maximum metabolic rate; Salmo trutta; Standard metabolic rate.
Resumo: | Links between metabolism and components of fitness such as growth, reproduction and survival can depend on food availability. A high standard metabolic rate (SMR; baseline energy expenditure) or aerobic scope (AS; the difference between an individual's maximum and SMR) is often beneficial when food is abundant or easily accessible but can be less important or even disadvantageous when food levels decline. While the mechanisms underlying these context-dependent associations are not well understood, they suggest that individuals with a higher SMR or AS are better able to take advantage of high food abundance. Here we show that juvenile brown trout (Salmo trutta) with a higher AS were able to consume more food per day relative to individuals with a lower AS. These results help explain why a high aerobic capacity can improve performance measures such as growth rate at high but not low levels of food availability.
Tipo: | Text
Idioma: | Inglês

Identificador:

https://archimer.ifremer.fr/doc/00414/52505/53324.pdf

https://archimer.ifremer.fr/doc/00414/52505/53325.pdf

DOI:10.1098/rsbl.2015.0793

https://archimer.ifremer.fr/doc/00414/52505/

Editor: | Royal Soc
Formato: | application/pdf
Fonte: | Biology Letters (1744-9561) (Royal Soc), 2015-11 , Vol. 11 , N. 11 , P. 20150793 (1-3)

Fonte:

2015 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

info:eu-repo/semantics/openAccess

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