Marine fish cultureis still in its infancy in Brazil. For several years the snook Centropomusparallelus and the flounder Paralicithys orbignyanus were consideredfor aquaculture, but their commercial application has not yet been achieved.However, once technology for culture of cobia Rachycentron canadum becameavailable, several private companies showed interest for marine fish culture.Besides traditional rearing technologes, cobia is suitable for open ocean culturein cages. This species shows fast growth rates, fish can achieve 4 or 8 kg withinone year of age and its flesh is highly appreciated. Shrimp farming has beenquestioned for environmental issues, use of fish oil and fish meal, and spreadingdiseases. Rearing shrimp in systems without water exchange, know as ZEAH (ZeroExchange Aerobic Heterotrophic Culture systems) or bioflocs applies methodsthat minimize these problems, contributing for the development of sustainableshrimp farming.
