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福尔马林、敌百虫、硫酸铜对苏氏圆腹仔鱼的急性毒性实验。在水温28-30℃下,福尔马林对苏氏圆腹仔鱼24h和48h半致死浓度分别为98.3mg/L和83.9mg/L,安全浓度为18.3mg/L;敌百虫24h和48h半致死浓度分别为7.7mg/L和3.7mg/L,安全浓度为0.26mg/L;硫酸铜24h和48h半致死浓度分别为0.28mg/L和0.22mg/L,安全浓度为0.04mg/L。其仔鱼鱼苗对所选用的三种药物的敏感顺序为:硫酸铜>敌百虫>福尔马林。
Acute Toxicity Experiment of Formalin, Trichlorfon and Copper Sulphate on. At the water temperature of 28-30 ℃, the lethal concentrations of formalin to Cyperus rotundus 24h and 48h were 98.3mg / L and 83.9mg / L, respectively. The safe concentration was 18.3mg / L. For trichlorfon 24h and 48h semi-lethal concentration of 7.7mg / L and 3.7mg / L, safe concentration of 0.26mg / L; copper sulfate 24h and 48h semi-lethal concentrations were 0.28mg / L and 0.22mg / L, safe concentration of 0.04mg / L. The sensitivity of the larvae fry to the three selected drugs is copper sulfate> trichlorfon> formalin.