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Abstract
The study on effects of salinities and densities on growth, survival of larvae greasyback shrimp were investigated with the aim of evaluting to define their optimal ranges in rearing system. Each different trials were conducted for 1 month. In experiment 1: the larvae were stocked at different rearing salinities (27‰, 30‰ và 33‰). The experiment 2: the larvae were stocked at different rearing densities (150, 200, 250 inds. L-2). Results showed that, the final average length, survival rate higher in the salinity at 30‰ (6.54mm and 34.30%, respectively) than the salinity at 27‰ (6.21 mm and 29.00%, respectively), metamorphorsis time period from Nauplii to Postlarvae 20 and population variety rate were lower than all treatments (p<0.05). Both growth and survival rates (7.13 mm and 33.50%, respectively) were higher at the lowest density. Results showed that the choice of appropriate salinity at 30‰ and stocking density at 200 inds. L-2 are important for commercial rearing.