The study was conducted to evaluate growth, survivability, and proximate composition of Lizaparsia at different salinities to adopt as a potential aquaculture species in salinity intruded coastal areas ofBangladesh. The experiment was carried out at laboratory conditions in rectangular tanks (25 L) with fivedifferent salinities viz. 0, 5, 10, 15 and 20 ppt correspondingly considered as T1(control), T2, T3, T4 andT5. Fingerlings were collected from the Pashur river and stocked at 10 individual/25L tank. After 90 days ofculture period, growth was found significantly different among the treatments. Average weight gain washighest inT2 (1.76±0.19) and lowest inT5 (0.91±0.15). Interestingly survival rate was found 100(%) in alltreatment. Specific growth rate was 0.829±0.10, 1.162±0.14, 0.744±0.2, 0.736±0.10 and 0.605±0.15respectively in T1, T2, T3, T4 and T5. Average daily gain was found higher in T1 (0.059± 0.006g/d),compared to other treatment. The average food conversion ratios were 0.78±0.06, 1±0.00, 0.69±0.06,0.78±0.22 and 1.035±0.25 in T1, T2, T3, T4 and T5 in five tanks, respectively. Better water qualityparameters were observed in T2. The temperature ranged from 28-30.3ºC, pH from 7.21-7.64, DO from5.01-5.68 ppm, hardness from 184.55-237.65mg/l and total ammonia nitrogen (TAN) ranged from 0.52-0.85mg/l. No significant change was observed in the proximate composition of fish reared at different salinities.Finally, it could be concluded that L. parsia can tolerate a wide range of salinity and can be cultured even infreshwater, thus might be a potential species for coastal aquaculture.
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