Groupers are popular food fish farmed in South East Asia and have potential to become an important cultivable species owing to their fast growth, efficienv feed conveosion and high market price. Commercially important species contributing to the grouper fishery mainly includes Epinephelus diacanthus E. bleekeri, E. chlorostigma, E. malabaricus and E. tauvina. A major bottleneck in the large scale onshore culture activities of groupers in our country is the lack of adequate number of hatchery produced seed of groupers since wild seed availability is highly fluctuating and unpredictable. In...