“…However, few studies have attempted to evaluate biological aspects of fish such as metabolic parameters, like health or welfare when exposed to short‐term temperature variations. Generally, studies on temperature perform the acclimation procedure at a gradual temperature (on average 1°C/day) and evaluate fish status after a long period of exposure to constant temperature (between 15 and 60 days) or do a quick acclimatization (1°C every 1 or 2 hr) and evaluate the fish status in periods between 12 and 24 hr after acclimatization (Dalvi et al, ; Kır, Sunar, & Altındağ, ; Lushchak & Bagnyukova, ; Peng, Cao, & Fu, ). Many studies showed that temperature influences animal physiological parameters such as metabolic rate, specific dynamic action, heart and ventilatory rates and growth (Dalvi et al, ; Frisk, Skov, & Steffensen, ; Frisk, Steffensen, & Skov, ; Jobling, ; Portner & Knust, ).…”