Development of aquaculture techniques for commercially important crustaceans, particularly at hatchery and nursery stages, Captive breeding of marine ornamentals, The biology and culture of tropical copepods, Custacean nutrition, digestive physiology and formulated feed development, Toxicology of nitrogenous wastes to commercially important crustaceans, Ecophysiology and behaviour of marine larvae and juveniles; biological rhythms, Aquaculture recirculating systems and effluent water treatment through advanced filtration