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Evaluation of acute toxicity of copper cyanide to freshwater fish, Catla catla (Hamilton)

Author(s): Hosetti BASALING | Dube PRAVEEN

Journal: Journal of Central European Agriculture
ISSN 1332-9049

Volume: 12;
Issue: 1;
Start page: 135;
Date: 2011;
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Keywords: behaviour | catla catla | copper cyanide | lc50 | oxygen consumption

The acute toxicity of copper cyanide to the juveniles of Indian major carp Catla catla (2±0.5 cm) was evaluated under static renewal conditions. The concentrations of copper cyanide that killed 50% of the carp fingerlings within 96-h (96-h LC50) was found to be 0.76 ± 0.04 mg/L. Fishes exhibited abnormal swimming activity, followed by frequent gill flapping, loss of equilibrium, gulping of air, hyperactivity, convolutions. The respiratory rate of the fish got severely affected (-63.41%± 0.002) when exposed to copper cyanide.
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