Acute Toxicity of Cypermethrin to Freshwater Fish Oreochromis niloticus: Influence of Aquatic Weed and Turbidity of Water

被引:2
|
作者
Majumder, Rajib [1 ]
Kaviraj, Anilava [2 ]
机构
[1] Vivekananda Mahavidyalaya, Dept Zool, Hooghly 712405, WB, India
[2] Univ Kalyani, Dept Zool, Kalyani 741235, WB, India
来源
关键词
Cypermethrin; LC50; Tilapia; Azolla; Turbidity; ACTIVE INGREDIENTS; DAPHNIA-MAGNA;
D O I
10.1007/s40009-020-00944-w
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Cypermethrin is a common pollutant of freshwater ecosystem in India. In this study, static bioassays were conducted to evaluate how toxicity of Cypermethrin to freshwater fish Oreochromis niloticus changed with hydro-biological conditions of water. 72-h LC50 of Cypermethrin to O. niloticus was found as 5.05 mu g/L. The LC50 value significantly increased in the presence of the aquatic weed Azolla pinnata (150 g/10L). Toxicity of Cypermethrin to fish also reduced with the increase in turbidity of water. It was concluded that determination of lethality of Cypermethrin to fish should be based on ambient conditions of the medium.
引用
收藏
页码:5 / 7
页数:3
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