Oxygen consumption as related to body size in juvenile steelhead, Salmo gairdneri Richardson

Abstract

The routine metabolism and metabolic rate of young steelhead ranging in weight from 1.5 to 75 g were determined by the sealed jar method. The water temperature was 9.5 to 10 °C. A regression line was fitted by statistical analysis to the logarithmic values of the data of fishes ranging in weight from 10 to 75 g. The equation was determined to be M = 0.6175 W 0.795 with b = 0.795 ± 0.15. This observed b-value agrees with the slope value found in the literature for salmonids. The dependence of oxygen consumption and body size is once more demonstrated.