铜和锌联合施用对胡子鲶的毒性。
The toxicity to Clarias lazera of copper and zinc applied jointly.
作者信息
Hilmy A M, el Domiaty N A, Daabees A Y, Alsarha A
机构信息
Department of Zoology, Faculty of Science, Alexandria University, Egypt.
出版信息
Comp Biochem Physiol C Comp Pharmacol Toxicol. 1987;87(2):309-14. doi: 10.1016/0742-8413(87)90013-2.
PMID:2888573
Abstract
- The acute toxicity to juvenile Clarias lazera of a mixture of copper and zinc over a 96 hr exposure period was determined. Fish were exposed to the summation of half the 96 hr TLm value of each toxicant. 2. Percentage survival was much reduced indicating that the metals potentiate each others lethal action. 3. Comparison between metal residues in fish exposed to copper and zinc or to their mixture showed that the uptake of one metal was decreased by the presence of the other. 4. Toxic effects of the mixture on the physiological parameters studied were mainly attributable to copper, indicating that the presence of zinc did not influence the mode of action of copper.
摘要
- 测定了铜和锌混合物在96小时暴露期内对幼年非洲胡鲶的急性毒性。鱼被暴露于每种毒物96小时半数致死浓度值一半的总和之下。2. 存活率大幅降低，表明这些金属增强了彼此的致死作用。3. 对暴露于铜、锌或其混合物中的鱼体内金属残留量的比较表明，另一种金属的存在会降低一种金属的吸收。4. 混合物对所研究生理参数的毒性作用主要归因于铜，这表明锌的存在并未影响铜的作用方式。
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