Abstract
This study was conducted to estimate the concentration of some Heavy metals, (cadmium, lead, zinc, iron, manganese, selenium and nickel) in the muscles of three different categories in the weight and length of fish Hamri Barbus luteus (Heckel) collected from the Euphrates River from Saddat- Al- Hindiya Region dam , during October 2009 to September 2010 . and estimated the concentrations of Heavy metals in river water ( dissolved and particulate phase) , And also study of some physical and chemical properties of water river temperature of the air and water, pH, Electrical Conductivity (E.C.) , Salinity, Speed of Flow, Dissolved Oxygen (D.O.), Biological Demand of Oxygen (B.O.D.) Total Suspended Substances, Total Dissolved Substances, Total Hardness and the Hardness of Calcium, Magnesium and plant nutrients (nitrate , nitrite and phosphate) , which were variety depending on the heterogeneity of months studied.