Original scientific paper
Evaluation of acute toxicity of copper cyanide to freshwater fish, Catla catla (Hamilton)
Hosetti BASALING
; Toxicology Division, PG Dept Zoology, Bioscience Complex, Jnana sahyadri, Kuvempu University, Shankaragatta- 57745, Shimoga, Karnataka State, India
Dube PRAVEEN
Abstract
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..
Keywords
Behaviour; Catla catla; Copper cyanide; LC50; Oxygen consumption
Hrčak ID:
70833
URI
Publication date:
13.7.2011.
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