METABOLIC RECOVERY FROM EXHAUSTIVE EXERCISE IN RAINBOW-TROUT

Exercise to exhaustion results in severe metabolic, acid-base, and end ocrine disturbances to fish. Recovery metabolism from this type of act ivity may place limits on performance, since the time requirements for restoration of high energy stores (e.g. glycogen, high energy phospha tes) will ultimately determine the frequency of maximal performance. T his article reviews the types of metabolic, acid base, and endocrine d isturbances associated with exhaustive exercise in rainbow trout, the mechanism(s) of recovery, and their regulation. In particular, the rol es of catecholamines and cortisol in regulating recovery metabolism ar e explored.