Abstract
This research is aimed to find suitable density for growth and survival rate of black tiger shrimp larvae and postlarvae (PL) using biofloc technology. The experiment is completely randomized design with three replications of four treatments which are stocking densities of 150, 200, 250, and 300 larvae/liter. The biofloc medium in composite tanks is 500 L water at 30‰ salinity modified with molasses at C/N ratio of 25:1. The results showed that the environmental factors, bacterial density, bioflocs during rearing in treatment of 150 and 200 larvae/litter were appropriate for the development of larval and postlarval tiger shrimp. At treatment of 150 larvae/litter yielded significantly higher PL-15 length (12.37±0.21 mm), and survival (61.2±4.3%) (p0.05). Production (112,515±7,118 PL/m3) in treatment of 200 larvae/litter was significantly higher (p0.05). It can be concluded that nursing larvae of the black tiger shrimp in biofloc system at 200 larvae/litter is the most suitable.
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