High salinity concentration environment induced nephrotoxicity in common carp (cyprinus carpio) fishes


Recent year’s Iraqi inland water suffered from several water crisis resembling in shortage of waters levels in Tigris and Euphrates river system, the main source of water in Iraq. Therefore, the continuous water crisis led to increase the salinity concentration of Tigris and Euphrates water, which observed significantly in south regions of Iraq. The present study was conducted to investigate the histopathological changes in kidney of common carp fish that cultured in high salinity concentration environment in Al Basra governorate, Iraq at October, 2018. 40 fishes sample were obtained from five fish ponds (eight fishes each pond) in north region of AL-Basra governorate, Iraq. Kidney samples were collected for histopathology examination. The kidney samples showed nephrotoxicity resembling in necrosis of renal tubules and proliferative lesion in glomeruli of affected kidneys. In conclusion, during October, 2018 water crisis, the fish that cultured in ponds with high salinity environment supplied from Tigris and Euphrates Rivers in Al Basra governorate, Iraq induced severe nephrotoxicity in kidneys of 70% of examined fishes.


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