Seasonal reorganization of nitrogen metabolism in an Indian airbreathing teleosts, Channa punctatus (Bloch).

ABSTRACT

Channa punctatus, an air-breathing freshwater teleost, mobilizes more protein for its energy requirement during summer and spawning months, as revealed by the data on endogenous nitrogen excretion in the form of ammonia-N, urea-N, free amino acids, creatinine and creatine.