Rearing of Seabass (Lates calcarifer) in tank–based Recirculation Aquaculture System (RAS)
Adi Susanto, Elka Sigit, Zaenal Arifin
Center for brackish water aquaculture
Abstract
Sea bass (Lates carcarifer) has been raised in brackish water as well as freswaeter ponds and marine cages. The increasing demand of bigger size jevenile is the consequecy of rapid expanding of open sea cage culture. Juvenile production in Resiculation Aquaculture System (RAS) was tested to meet the demand of approximately 100 g of fish. RAS was set-up using numerous component such as settlement tank, physical filtration, biofilter and pure oxygen injection. Result indicated that daily growth rate was 1.21 gram with final body weight of 122 gram and survival rate of 94,3 %. Water quality was in range of acceptable value execpt dissolved oxygen that fluctuated from 3 ppm to saturated.
Keywords: Sea bass, RAS
Topic: Agricultural Development