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Hg,Cu,Cd,Zn 对真鲷仔鱼的急性毒性研究
引用本文:蓝伟光,陈霓.Hg,Cu,Cd,Zn 对真鲷仔鱼的急性毒性研究[J].海洋科学,1991,15(5):56-60.
作者姓名:蓝伟光  陈霓
作者单位:厦门水产学院 361021 (蓝伟光),厦门水产学院 361021(陈霓)
基金项目:福建省自然科学基资助课题
摘    要:本文采用静水生物试验法测定了Hg,Cu,Cd,Zn对真鲷仔鱼(2周龄)的急性毒性。结果表明:Hg,Cu,Cd,Zn对真鲷仔鱼24h的LC_(50)分别为0.025,0.31,5.00和3.70 mg/L,48h的LC_(50)分别为0.016,0.24,1.72和2.22mg/L,72h的LC_(50)分别为0.006,0.11,O.56和0.92mg/L,96h的LC_(50)分别为O.004,0.07,0.27和0.44 mg/L。Hg,Cu对真鲷仔鱼的影响极为显著,Zn,Cd的影响虽然很大,但比Hg,Cu低得多。Cd的毒性比Zn强,但毒理作用较为缓慢。4种重金属的毒性顺序为Hg>Cu>Cd>Zn。

关 键 词:仔鱼  真鲷  毒性      
收稿时间:1991/2/19 0:00:00

ACUTE TOXICITY OF Hg, Cu, Cd, Zn TO LARVAE OF RED SEA BREAM, CHRYSOPHRYS MAJOR
Lan Weiguang and Chen Ni.ACUTE TOXICITY OF Hg, Cu, Cd, Zn TO LARVAE OF RED SEA BREAM, CHRYSOPHRYS MAJOR[J].Marine Sciences,1991,15(5):56-60.
Authors:Lan Weiguang and Chen Ni
Abstract:The acute toxicity of mercury, copper, cadmium and zinc to larvae of red sea bream (Chrysophrys major) were determined in static bioassay tests. The 24h LC50 values of Hg, Cu, Cd, Zn for larvae of red sea bream were 0.025, 0.31, 5.00, and 3.70 mg/L, the 48h LC50 values of Hg, Cu, Cd, Zn were 0.016,0.24,1.72 and 2.22 mg/L, the 72h LC50 values, of Hg, Cu, Cd and Zn were 0.006, 0.11, 0.56 and 0.92mg/L, the 96h LC50 values of Hg Cu, Cd and Zn were 0.004, 0.07, 0.27, and 0.44mg/L. Mercury and copper sensitivity of larvae of red sea bream are very remarkable. Zinc and cadmium sensitivity are also higher, but much lower than mercury and copper. Cadmium toxicity to larvae of red sea bream was stronger than zinc, but its effect was slower than zinc. The sequential sensitivity of the Jour heavy metals is Hg > Cu > Cd > Zn.
Keywords:Acute toxicity  Mercury  Copper  Cadmium  Zinc  Larvae  Red Sea "bream  Chrysophrys major
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