PRODUCTIVITY AND ECONOMICS OF SHRIMP (Penaeus monodon, FABRICIUS) CULTURE IN LOW SALINITY WATERS

Black tiger shrimp, Penaeus monodon (Fabricius) is a non-piscine organism becomes most important aquatic resource of Bangladesh in the last decades. Traditionally it cultured 15-30 ppt salinity. Effect different low salinity on its survival, growth, production and economic return was observed three levels 10 ppt, 7 5 for 110 days. Juvenile shrimps (approximately 5g each) were stocked at 4 m-2 density. It that had no significant effect survival P. monodon. However, reduced (p< 0.05) negative impact individual average growth rate, weight gain per 14 days, unit area (ton/ ha.) thus return. This study revealed although culture possible salinity, higher ensures better