| Histopathological of tissue lesions caused by acute toxicity of copper on two species of fresh water fish |
| Paper ID : 1025-ICIAQUA |
| Authors |
|
mohammad farhangi *1, hojjatallah jafaryan2 1GONBAD KAVOUS UNIVERSITY 2Gonbad Kavous Universtiy |
| Abstract |
| Fish is an indicator to measure the freshwater contamination by heavy metals because they occupy different trophic levels in an aquatic ecosystem. The experiments were conducted to study of acute toxicity of Copper on tissue changes of Cyprinus carpio and Rutilus caspicus after 96h. 13 fishes with average weight of 2±0.5g to Rutilus caspicus and 20±2.2g Cyprinus carpio were exposed to different concentrations of copper salt respectively. The fish were encountered in lethal concentrations of Copper (0.4mgL-1 and 0.45mgL-1 to Rutilus caspicus and Cyprinus carpio respectively). A group of fish was considered as control samples. Histopathological findings showed that major lesions were hemorrhage, hyperemia, hyperplasia and epithelial cells necrosis in total fish. Also in the lesion fish were observed degenerated tubules of their kidney, expansion of Bowman's capsule and hepatocytes necrosis. The results of these studies may provide guidance to selection of acute toxicity to be considered in the field of biomonitoring efforts designed to detect the bioavailability of copper sulfate and early warning indicators of this heavy metal toxicity in Caspian Sea fishes. |
| Keywords |
| Histopathological, Bio indicator, Toxicity, Copper, Fresh water |
| Status: Abstract Accepted (Poster Presentation) |