Metabolic rate in fish is related to body weight and to temperature. In these studies with
gilthead sea bream, European sea bass and white grouper, energy loss at starvation was
measured at a temperature of 23.3F2.3 jC, and at this range, the temperature effect was
found to be very small compared to the size effect. No significant differences could be found among the three fish species concerning the exponent b of the metabolic body weight (kg)b, which was on average 0.80, giving a strong indication, that this might be a common value for a number of fish species. There were however, differences concerning metabolic rates
among the fish. The daily energy loss during starvation for white grouper was only 24.9 kJ compared to 35.3 and 40 kJ for European sea bass and gilthead sea bream when referring to a common metabolic weight of (kg)0.80. Since during those measurements fish could move freely in the tank, the lower value for grouper is an indication of its sedentary life style.
Metabolic rate in fish is related to body weight and to temperature. In these studies with
gilthead sea bream, European sea bass and white grouper, energy loss at starvation was
measured at a temperature of 23.3F2.3 jC, and at this range, the temperature effect was
found to be very small compared to the size effect. No significant differences could be found among the three fish species concerning the exponent b of the metabolic body weight (kg)b, which was on average 0.80, giving a strong indication, that this might be a common value for a number of fish species. There were however, differences concerning metabolic rates
among the fish. The daily energy loss during starvation for white grouper was only 24.9 kJ compared to 35.3 and 40 kJ for European sea bass and gilthead sea bream when referring to a common metabolic weight of (kg)0.80. Since during those measurements fish could move freely in the tank, the lower value for grouper is an indication of its sedentary life style.
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