| This study was conducted under static condition to evaluate the acute toxicity of endosulfan to zoea and postlarvae of Macrobrochium rosenbergii, meanwhile the effect of endosulfan on the activities of alkaline phosphatase (AKP), acid phosphatase (ACP)and Na+/K+-ATPase in postlarvae were studied. It turned out that 24, 48 h LC50 and safe concentration (SC) of endosulfan for Z5, Z7, Z9 were followed as 2.086, 0.391, 0.004 滋g/L; 2.985, 0.843, 0.02 滋g/L; 4.430, 2.000, 0.123 滋g/L; 24, 48, 72, 96 h LC50 for postlarvae were 5.479, 1.853, 0.617, 0.471 滋g/L, respectively; toxicity of ensoulfan to Z5, Z7, Z9 and postlarvae were followed as SCZ5>SCZ7>SCP4>SCZ9.There was no significant difference between treatments and control group on levels of ACP and AKP activities in postlarva exposed to endosulfan from 0.010 to 6.982 滋g/L, but AKP activities in postlarvae exposed to endoulfan 0.264~6.982 滋g/L were lower than control group; Na+/K+-ATPase activities in postlarvae exposed to endosulfan 0.010~0.264 滋g/L were significant higher than control. |
