摘要
采用静水生物毒性试验法测定了Cu2+、食盐对金鱼幼鱼的急性毒性作用及安全浓度评价,浓度梯度按等对数间距设置,半致死浓度采用直线内插法进行计算。获得了Cu2+和食盐对金鱼幼鱼24 h、48 h、96 h的LC50值分别为0.50,0.450,0.266 mg/L和13.404,10.308,7.042。提出了Cu2+和食盐对金鱼幼鱼安全浓度分别为0.00266 mg/L和0.704 mg/L。为金鱼幼鱼防病治病、水质管理及环境保护提供了依据。
Acute toxic effects of Cu^2＋ and table salt on juvenile goldfish and safe concentration of table salt were investigated. The LC50 of Cu^2＋ on 24 h, 48 h, 72 h and 96 h were 0.50, 0. 450, 0. 375 and 0.266 rag/L, and that of table salt were 13. 404, 10. 308, 8. 553, and 7. 042 mg/L. The safe concentration of Cu^2＋ and table salt were 0. 002 66 and 0. 704 mg/L. The results provide useful information for goldfish disease prevention, water quality control and environmental protection.
出处
《上海水产大学学报》
CSCD
北大核心
2008年第1期109-112,共4页
Journal of Shanghai Fisheries University
基金
上海市科技兴农重点攻关项目[沪农攻字(2003)第8-4号]
