Water and O. niloticus fish samples were collected monthly;during the period from June 2010 to May 2011;from an illegal fish farm located in Sabal drainage canal (SDC),Al-Minufiya Province,Egypt.SDC is the largest drain in Al-Minufiya
Province, Egypt,which extends for more than 62 km,and pours into Rossetta
Branch of the River Nile,at Tamalay village.SDCd epthand width ranged between
3 and4m,and between 5and9m,respectively.