目的探讨植物杀螺药血水草生物碱(eca)对鱼类的毒性作用。
Objective to understand the acute toxicity of a plant-derived molluscicide Eomecon Chionantha Hance alkaloids ECA to fish.
无论如何，正是进化的方式，一些鱼类产生了对PC B毒性的抵抗力。
As is the way of evolution, however, some fish species have developed resistance to PCB poisoning.
在实验室条件下，研究了酸性水对几种主要淡水鱼类的毒性影响。
Under laboratory conditions, the toxicity of acid water on several major freshwater fishes were studied.
由于无机单聚体铝对鱼类有致毒作用，因此，光解作用的结果使水体中铝的毒性增加。
Since the monomeric inorganic aluminium is toxic to fish, the result of the transformation will increase the toxicity of aquatic aluminium.
本文以微核测定研究湘江底泥铜含量对鱼类血细胞的毒性作用。
The present paper is dealing with the pernicious effects on the blood cells ofthe fishes poisoned by copper in the base mud of the Xiang River.
方法-用水毒理学方法测定它们对3种鱼类的24hLC50，并将洗涤剂溶液存放15d和30d后测定其对鱼类的急性毒性。
Methods The 24 h LC50 were determined by methods of water toxicology and the acute toxicity was examined after the detergents being de1xited for 15 days and 30 days.
方法-用水毒理学方法测定它们对3种鱼类的24hLC50，并将洗涤剂溶液存放15d和30d后测定其对鱼类的急性毒性。
Methods The 24 h LC50 were determined by methods of water toxicology and the acute toxicity was examined after the detergents being de1xited for 15 days and 30 days.
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