【摘要】 在水温(27±1)℃、盐度25±1、PH值为7.90~8.10、溶解氧>6.00 mg/L条件下,采用静水法进行了高锰酸钾、聚维酮碘、甲醛、戊二醛、敌百虫、乙酸铜等6种药物对双斑东方鲀幼鱼急性毒性试验。结果表明:高锰酸钾、聚维酮碘、甲醛、戊二醛、敌百虫和乙酸铜对双斑东方鲀幼鱼半致死浓度(24、48、72、96 h)分别为(1.88、1.84、1.76、1.75 mg/L)、(23.30、22.55、20.34、19.50 mg/L)、(11.27、7.06、6.38、5.57 mg/L)、(9.25、9.03、7.03、5.48 mg/L)、(16.85、14.19、10.23、7.92 mg/L)和(10.54、8.78、6.13、5.46 mg/L),安全浓度分别为0.53、6.34、0.83、2.58、3.02和1.83 mg/L。双斑东方鲀幼鱼对6种药物耐受能力的强弱依次为:聚维酮碘>敌百虫>戊二醛>乙酸铜>甲醛>高锰酸钾。实际生产上应严格按照药物安全浓度控制药物的使用。更多还原

【Abstract】 The acute toxicity of six common drugs,including potassium permanganate,povidone-iodine,formaldehyde,glutaraldehyde,trichlorfon and cupric acetate,to Fugu bimaculatus were studied at water temperature of（27 ± 1） ℃,salinity of 25 ± 1,p H of 7.90 8.10 and dissolved oxygen level of above 6.0 mg/L using static bioassay test.The results showed that the median lethal concentration(LC₅₀) of potassium permanganate to F.bimaculatus for 24,48,72 and 96 h were 1.88,1.84,1.76 and 1.75 mg/L,respectively; the 24,48,72 and 96 h LC₅₀ of povidone-iodine were 23.30,22.55,20.34 and 19.50 mg/L;the 24,48,72 and 96 h LC₅₀ of formaldehyde were 11.27,7.06,6.38 and 5.57 mg/L; the 24,48,72 and 96 h LC₅₀ of glutaraldehyde were 9.25,9.03,7.03 and 5.48 mg/L; the 24,48,72 and 96 h LC₅₀ of trichlorfon were 16.85,14.19,10.23 and 7.92 mg/L; the 24,48,72 and 96 h LC₅₀ of cupric acetate were 10.54,8.78,6.13 and 5.46 mg/L.The safe concentration was found to be 0.53 mg/L in potassium permanganate,6.34 mg/L in povidone-iodine,0.83 mg/L in formaldehyde,2.58 mg/L in glutaraldehyde,3.02 mg/L in trichlorfon and 1.83 mg/L in cupric acetate.Order of sensitivities of six drugs to F.bimaculatus was: povidone-iodine > trichlorfon > glutaraldehyde > cupric acetate > formaldehyde > potassium permanganate.The using of six drugs should be controlled strictly in fugu aquaculture production according to safe concentration.更多还原