【摘要】 试验测定了不同温度条件下Ｃｕ２＋对中国林蛙蝌蚪的急性毒性．结果表明，在水温为９～１３℃、１８℃和２４℃条件下，Ｃｕ２＋对１０ｄ龄中国林蛙蝌蚪９６ｈ的ＬＣ５０分别为５．０１、３．８０和２．９９ｍｇ·Ｌ－１，致死阈浓度分别为４．０、２．５和１．６ｍｇ·Ｌ－１，而在９６ｈ内的无可观察效应浓度分别为２．５、１．６和１．０ｍｇ·Ｌ－１．１８℃条件下Ｃｕ２＋对２０ｄ龄中国林蛙蝌蚪的９６ｈＬＣ５０为２．１７ｍｇ·Ｌ－１．更多还原

【Abstract】 The acute toxicity of Cu 2+ to Rana chensinensis tadpole was determined under various water temperature. The results showed that, at 9～13,18 and 24℃, its 96h LC 50 for 10 days old tadpole was 5.01,3.80 and 2.99mg·L -1 ,respectively. The lethal concentration, was 4.0,2.5 and 1.6mg·L -1 , and the no observed effect concentration(NOEC) in 96hours was 2.5,1.6 and 1.0mg·L -1 , respectively. The 96h LC 50 for 20 days old tadpole was 2.17mg·L -1 at 18℃.更多还原