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Bull Environ Contam Toxicol. 2015 Feb;94(2):164-70. doi: 10.1007/s00128-014-1454-8. Epub 2015 Jan 7.

Biochemical and histological changes in fish, spotted scat (Scatophagus argus) exposed to diazinon.

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Faculty of Marine Sciences, Chabahar Maritime University, Chabahar, Iran.


Pesticide accumulates in aquatic ecosystems and exerts toxic effects on aquatic animals. In this study, stress parameters and tissue histopathology under acute diazinon exposure were investigated in fish, scat (Scatophagus argus). Spotted scat was exposed to different diazinon concentrations (0, 10, 20, 30 μg L(-1)) for 24, 48, 72, 96 h. Cortisol and glucose levels showed a significant increase after exposure to different diazinon concentration with increase in exposure time. The electrolytes (K(+), Cl(-), Ca(2+), Na(+)) and glucose were differentially affected during the exposure to diazinon. Gill and kidney tissues showed many histopathological changes in diazinon-exposed fish. These results suggest that the release of spotted scat (S. argus) into the diazinon-contaminated regions may alter their physiology and jeopardize their survival.

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