The acute toxicity and chronic toxicity of four successive generations of moin macrocopa that were exposed in DBP and TBTC concentrations was studied in laboratory condition for further understanding the influence and the successive toxicity of environmental hormonal substance of freshwater zooplankton and the dynamics influence of individual and population of freshwater cladoceras after the EH into the freshwater ecosystem. The moina macrocopa are exposed to 6 different mass concentrations of DBP and TBTC....