Background: Contamination of aquatic ecosystems (e.g. lakes, rivers, streams, etc.) with metals has been receiving increased worldwide attention due to their harmful effects on human health and other organisms in the environment. Therefore, the aims of this study was investigation of Pb, Cd, Zn, and Cu bioaccumulation in the muscle, liver, gill, and skin of common carp (C. carpio) and silver carp (H. molitrix) in Gheshlagh Dam in Sanandaj City.
Materials and Methods: The study was cross- sectional. A total of 30 fish individuals belonging to of common carp and silver carp were analyzed for Cd, Pb, Cr, Cu, Ni, Zn, and Fe in the edible muscle, gill, liver, and skin organs, metal concentrations in the organs were given as µg g-1 wet weight. Metal concentrations were assayed using Shimadzu AA 6600 atomic absorption spectrophotometer. The data was analyzed using SPSS software (version 16 SPSS, Chicago, IL).
Results: The results of this study showed that the highest and lowest metal concentrations were in gill and skin respectively. Moreover, the results of one-way ANOVA in two species showed that the difference was significant in Cd, Pb and Zn in the liver Zn in the gill Pb, Cr, and Zn in the muscle and Pb, Ni, and Zn in the muscle of both species (p < 0.05).
Conclusion: The results of this study showed that the metal concentrations (exception Pb in H. molitrix) in muscle of common carp (C. carpio) and silver carp was lower than FAO standard, that these two fish species are health.