The study of behavioral and histopathology acute toxicity of Copper (CuSO4) to Rutilus rutilus caspicus

The research was accomplished in order to study of behavioral and histopathological effects of Copper to Rutilus rutilus caspicus. The studied was performed by Water Static Method during 96 hours. 15 fish with average weight 2±0.5 g were encountered with different concentrations (0,. 0.1, 0.2, 0.3, 0.4 mg/l) of Copper. A group of fish was considered as control. Under stable condition and aeration, the lethal concentrations were detected 0.4 mg/l. Results indicate, there was significant differences between lethal rate with each other when copper concentration was increased (p<0.05). The experiments revealed, in the high concentration of Copper nominal signs of toxicity as convulsion, air gulping and opened operculum were happened. Histopathological findings were showed that, major lesions in tissues were hemorrhage, hyperemia, hyperplasia and edema and cells necrosis.