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。
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.
出处
《海洋科学》
CAS
CSCD
北大核心
1991年第5期56-60,共5页
Marine Sciences
基金
福建省自然科学基资助课题
关键词
仔鱼
真鲷
毒性
汞
铜
镉
Acute toxicity, Mercury, Copper, Cadmium, Zinc, Larvae, Red Sea 'bream, Chrysophrys major
