Industrial effluent are the major sources of heavy metal pollution and it is released into fresh waterbodies. Heavy metals cause several ill effects to aquatic ecosystem and organisms including fish. The acute toxicity (LC50 ) of Zinc against fresh water food fish, Catla catla for 96 hr was found to be 15.0196 mg/L for Zinc. Furthermore, the exposed fish showed behavioural changes include hyperactivity, loss of equilibrium, rapid swimming, disturbed opercular movements, increased surface activity and loss of equilibrium. The result also revealed that mortality rate depends upon concentrations of heavy metals and duration of exposure.
Probit analysis, LC50, Zinc chloride, Catla catla
Mukul Sinha "Acute Toxicity of Heavy Metal, Zinc in Fresh Water Fish, Catla catla" Iconic Research And Engineering Journals Volume 2 Issue 7 2019 Page 138-140
Mukul Sinha "Acute Toxicity of Heavy Metal, Zinc in Fresh Water Fish, Catla catla" Iconic Research And Engineering Journals, 2(7)