Range of Some Heavy Metals in Flesh Tissues of Chrysichthys auratus of Jaja Creek, Niger Delta Zone, Nigeria

Studies on the range of heavy metal compound on the flesh tissues of Chrysichthys auratus was carried out for a period of 12 months (January December, 2005) in Jaja Creek, Niger Delta Zone, Nigeria. The fish species were collected from the local fishers and treated before the determination of the heavy metal was carried out, using Atomic Absorption Spectrophotometer (AAS). The analysis indicated that the concentrations of Zn, Fe, Mg and Cu were higher the flesh tissues of the species. Also higher trends of metals were observed in the wet season than the dry season. However, the levels of concentration did not show a serious deterioration of the fish species as the limits were within the approved limit, but constant tissue around the vicinity