FN Archimer Export Format PT J TI Aerobic scope explains individual variation in feeding capacity BT AF AUER, Sonya K. SALIN, Karine ANDERSON, Graeme J. METCALFE, Neil B. AS 1:1;2:1;3:1;4:1; FF 1:;2:;3:;4:; C1 Univ Glasgow, Inst Biodivers Anim Hlth & Comparat Med, Glasgow G12 8QQ, Lanark, Scotland. C2 UNIV GLASGOW, UK IF 2.823 TC 51 UR https://archimer.ifremer.fr/doc/00414/52505/53324.pdf https://archimer.ifremer.fr/doc/00414/52505/53325.pdf LA English DT Article DE ;energy metabolism;fitness;food intake;maximum metabolic rate;Salmo trutta;standard metabolic rate AB 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. PY 2015 PD NOV SO Biology Letters SN 1744-9561 PU Royal Soc VL 11 IS 11 UT 000364850900012 DI 10.1098/rsbl.2015.0793 ID 52505 ER EF