【摘要】 室温条件下,用静水生物测试法,分别用硫酸铜和高锰酸钾对似刺鳊鮈幼鱼的进行急性毒性试验。结果显示,硫酸铜和高锰酸钾对似刺鳊鮈幼鱼24h的LC50值分别为0.6148mg/L和1.5987mg/L;48h的LC50值分别为0.5517mg/L和1.1637mg/L;72h的LC50值分别为0.4950mg/L和0.9906mg/L;96h的LC50值分别为0.4698mg/L和0.9828mg/L。硫酸铜和高锰酸钾对似刺鳊鮈幼鱼的安全浓度分别为0.04698mg/L和0.09828mg/L。似刺鳊鮈幼鱼对硫酸铜和高锰酸钾的耐受力:高锰酸钾>硫酸铜。似刺鳊鮈人工养殖疾病防治过程中,硫酸铜和高锰酸钾消毒药液须慎用。更多还原

【Abstract】 Acute toxicity of CuSO4 and KMnO4 to the larva of Paracanthobrama guichenoti for the first time were studied by biological toxic test method. The results showed that the 24 h LC50 values of CuSO4 and KMnO4 to the larva of Paracanthobrama guichenoti were 0.6148 mg/L and 1.5987 mg/L; the 48 h LC50 values were 0.5517 mg/L and 1.1637 mg/L; the 72 h LC50 values were 0.4950 mg/L and 0.9906 mg/L; the 96 h LC50 values were 0.4698 mg/L and 0.9828 mg/L; The safe concentrations were 0.04698 mg/L and 0.09828 mg/L respectively. The sensibility of larval of Paracanthobrama guichenoti to Copper sulphate was higher than that of potassium permanganate. The results indicated that CuSO4 and KMnO4 should were used carefully in aquaculture.更多还原