摘要：Heavy metals concentration of Zn, Cr, Cd and Cu in liver, gills and muscles of the two fish species lago omanensis and Auxis thazar were determined using flammable Atomic Absorption Spectrophotometer (AAS). Fish species were collected from the northern Gulf of Aqaba during the period from June 2015 - Jan 2016. Liver were found to be the major organ of bioaccumulation for Zn, Cr, Cd and Cu for Auxis thazar, while muscles were found to be the lowest organ of bioaccumulations. However, gills were found to be the site of bioaccumulation for Cu, Cr and Zn in Iago omanensis and the lowest concentrations were observed in muscles. The results showed that fish species had significant statistical differences for all the heavy metal concentrations studied, high concentrations of Cu was in Iago omanensis, whereas, the higher concentrations of Cr, Zn and Cd was in Auxis thazar. Fish length had a very weak relationship on most of the heavy metal concentrations for the two fish studied.
