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Effects of salinity on growth performance of early juveniles of Spotted scat (Scatophagus argus)

This study aimed to determine the appropriate salinity range for early juvenile of spotted scat fish (Scatophagus argus). The experiment included 7 treatments of salinity as 5, 10, 15, 20, 25, 30, and 35‰. The experiment was randomly set up in 100L tanks in triplicate. The fish was stocked at 1 ind./L of stocking density with the initial weight, body length and body high were 0.022 ± 0.002 g, 7.83 ± 1.84 mm, and 4.26 ± 0.35 mm, respectively. After 20 days of rearing, no significant difference in fish growth performance (DWG and SGRW; DDG and SGRD; DLG and SGRL) was observed among treatments (p > 0.05). The fish survival ranged from 56.7 to 98.9%, and was statistically different among treatments (p<0.05). In which, the highest survival rates were recorded at 5 and 10‰ of salinity (98.9 and 90.6%, respectively) (p<0.05).