Abstract
The study is aimed to optimize the stocking density for growth and survival rate of mudskipper (Pseudapocryptes elongatus) in biofloc systems. The experiment design was completely randomized with three replications of four stocking density including: 100, 200, 300 and 400 inds/m3. Fish were stocked in 0.5 m3 tanks containing 0.35 m3 of 15‰brackish water in biofloc system (C:N ratio =15:1). The body weight and length of initial fish was 2.07±0.04 gand 8.17±0.36 cm, respectively. After 56 days of culture, the body length and weight of fish at 100 and 200 inds/m3 were higher, FCR lower and were significantly different (p0.05). Fish biomass at 200 inds/m3 was 2.6 kg/m3, was not significantly different compared to 300 and 400 inds/m3, but significantly different compared to 100 ind/m3 (1.3 kg/m3). In conclusion, tank culture of mudskipper applied bio-floc technology at stocking density of 200 inds/m3 was appropriate.
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