Fig. 1. Mitochondrial enzyme activities in red muscle (A,B), white muscle (C,D) and liver (E,F) of goldfish exposed to three acclimation temperatures (4, 20, 35°C) and three diets (fasted, control and high fat diet). Values are expressed as means + s.e.m., and are labelled with different letters to indicate statistical significance according to a Kruskall–Wallis test followed by a Mann–Whitney U-test, with N=5–7 for each treatment. CS, citrate synthase; COX, cytochrome oxidase.