非离子氨氮对罗氏沼虾幼体的毒性研究  

Studies on Toxicity of Ammonia nitrogen to Larvae of Macrobrachium rosenbergii

作　　者：孙振中[1] 刘淑梅[1] 戚隽渊[1] 吴维宁[1] 林惠山[1] 

机构地区：[1]上海市水产研究所

出　　处：《水产科技情报》1999年第4期174-176,共3页Fisheries Science & Technology Information

摘　　要：通过非离子氨氮对罗氏沼虾幼体的急性致毒试验表明：Ⅴ期幼体９６ｈ的半致死浓度（ＬＣ５０）值为１．１４ｍｇ／Ｌ，安全浓度（ＳＣ）值为０．１１ｍｇ／Ｌ；Ⅸ期幼体９６ｈ的ＬＣ５０值为１．４０ｍｇ／Ｌ，ＳＣ值为０．１４ｍｇ／Ｌ，建议在育苗期间加强水质管理，有效地控制水体中非离子氨氮的浓度。The acute toxicity test of ammonia nitrogen to larvae Macrobrachium rosenbergii was carried out in this paper. The results showed that the semi lethal concentration ( LC 50 ) of 96 h of the fifth zoea stage ( Z 5 ) was 1.14 mg/L, the safety concentration ( SC ) was 0.11 mg/L; and the LC 50 of 96 h of Z 9 and SC were 1.40 mg/L and 0.14 mg/L respectively . The report suggests that the available concentration of ammonia nitrogen was below 0.10 mg/L.

关 键 词：非离子氨氮 罗氏沼虾 幼体 毒性试验 育苗 虾 

分 类 号：S966.121[农业科学—水产养殖]