FERTILIZED EGG PRODUCTION IN NON-BREEDING SEASON OF CULTURED RED SPOTTED GROUPER, Epinephelus akaara BY USING ADAPTIVE PHYSIOLOGY

Abstract

Photoperiod and water temperature are potent environmental factors for regulation of gonadal development and spawningin fish. As a preliminary investigation into the effect of environmental factors control for gonadal development by usingadaptive physiological characteristics, we examined the involvement of photoperiod and water temperature in ovariandevelopment and fertilized egg production in non-breeding of Epinphelus akaara.adaptive physiological characteristics, we examined the involvement of photoperiod and water temperature in ovariandevelopment and fertilized egg production in non-breeding of Epinphelus akaara.