HEAVY METAL LEVELS IN WATER, SEDIMENT AND BIOACCUMULATION INDEX IN FISH (Chrysicthys walkeri) FROM WARRI RIVER

Bioaccumulation of any heavy metal above its maximum limits invariably results tothe detrimental health an organism. This present study was carried out to evaluatethe levels eight metals (Fe, Pb, Mn, Ni, Cu, Zn, Cr and Cd) in surface water,sediment bioaccumulation index (Chrysicthys walkeri) from Warri River, DeltaState, Nigeria. Samples were collected between the period July September,2015 two designated stations. The order mean rank profile, insurface water, sediment fish Pb>Mn>Fe>Zn>Cr>Cd>Ni>Cu;Fe>Zn>Ni>Cu>Mn>Cd>Pb>Cr Pb>Ni>Zn>Mn>Cd>Fe>Cr>Cu respectively.When compared with regulatory standards WHO, FAO FEPA threshold limitmost for both Tissue.The BI ? 1.0 indicating possibility ofecological concern. These findings implies that River is polluted andconsumption these fishes could have grave consequences even theexcellent condition factor fishes. Therefore, input pollutants into this rivershould be monitored avoid associated risks