Tolerance of Physocypria kraepelini (Crustacean, Ostracoda) to water-borne ammonia, phosphate and pH value  

作　　者：YU Na, CHEN Shimei, LI Erchao, CHEN Jiayan, CHEN Liqiao School of Life Science, East China Normal University, Shanghai 200062, China 

出　　处：《Journal of Environmental Sciences》2009年第11期1575-1580,共6页环境科学学报（英文版）

基　　金：supported by the National Science Foundation of China (No. 30700064);the Fund of Research for Selecting Young Excellent Teachers in University of Shanghai (No. 79001351);the Jiangsu Provincial Key Laboratory of Coastal Wetland Bioresource and Environmental Protection

摘　　要：This study evaluated the median lethal concentration （LC50） and safe concentration of water-borne ammonia, phosphate and pH value on Physocypria kraepelini, a freshwater Ostracoda with a static renewal test system. The results indicated that the LC50 values of ammonia for P. kraepelini were 1026.71, 859.98, 771.79 and 583.82 mg/L at 24, 48, 72 and 96 h exposure, respectively, and the safe concentration range of ammonia for the long-term survival of P. kraepelini was less than 58.38 mg/L. The safe range of pH value for the survival of P. kraepelini was from 6.59 to 7.61. P. kraepelini has a high tolerance to ammonia, phosphate and pH value which are the main environmental factors in the serious eutrophication water.This study evaluated the median lethal concentration （LC50） and safe concentration of water-borne ammonia, phosphate and pH value on Physocypria kraepelini, a freshwater Ostracoda with a static renewal test system. The results indicated that the LC50 values of ammonia for P. kraepelini were 1026.71, 859.98, 771.79 and 583.82 mg/L at 24, 48, 72 and 96 h exposure, respectively, and the safe concentration range of ammonia for the long-term survival of P. kraepelini was less than 58.38 mg/L. The safe range of pH value for the survival of P. kraepelini was from 6.59 to 7.61. P. kraepelini has a high tolerance to ammonia, phosphate and pH value which are the main environmental factors in the serious eutrophication water.

关 键 词：AMMONIUM PHOSPHATE Physocypria kraepelini 

分 类 号：X824[环境科学与工程—环境工程]