title: Tolerance of Physocypria kraepelini (Crustacean, Ostracoda) to water-borne ammonia, phosphate and pH value.
abstract: 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.
authors.affiliation: School of Life Science, East China Normal University, Shanghai 200062, China. nyu@bio.ecnu.edu.cn
authors.forename: Na
authors.initials: N
authors.lastname: Yu
authors.forename: Shimei
authors.initials: S
authors.lastname: Chen
authors.forename: Erchao
authors.initials: E
authors.lastname: Li
authors.forename: Jiayan
authors.initials: J
authors.lastname: Chen
authors.forename: Liqiao
authors.initials: L
authors.lastname: Chen
mesh_terms: D000641:Ammonia / Q000633:toxicity*; D000818:Animals; D003445:Crustacea / Q000187:drug effects* / Q000254:growth & development / Q000378:metabolism; D005068:Eutrophication; D006863:Hydrogen-Ion Concentration; D010710:Phosphates / Q000633:toxicity*; D016019:Survival Analysis; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D010710:Phosphates; D014874:Water Pollutants, Chemical; D000641:Ammonia