Partitioning of locomotor and feeding metabolism in sablefish (Anoplopoma fimbria)

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Abstract
The swimming, feeding, and standard metabolic rates of the sablefish (Anoplopoma fimbria) were determined using tunnel and mass respirometers. Swimming metabolic rate was measured for fish in both digestive and nondigestive states. Comparison of power–performance curves for fed and starved states suggested that sablefish were able to allocate oxygen supply preferentially to locomotor muscles and suppress the oxygen demand of digestion when active. Reduced blood flow to the stomach, liver, and spleen during exercise has been observed in other species and may provide a physiological mechanism to explain the results obtained with sablefish.