Heavy metals accumulation in muscles of Psettodes erumei, Carangoides fulvoguttatus and Thunnus tonggol in Boushehr waters

Document Type : Animal environment

Authors

1 Department of Aquaculture, Faculty of Veterinary Medicine, Shiraz University, Shiraz, Iran

2 Department of Fisheries, Faculty of Marine Sciences, Marine and Marine Science University of Chabahar, Chabahar, Iran

Abstract

Heavy metals are the most important contaminants that aggregate in the aquatics body through food chain. The purpose of this study was to compare the concentration of heavy metals (Pb, Fe, Zn, Cr, Ni and Cd) in the muscle of Psettodes erumei, Carangoides fulvoguttatus and Thunnus tonggol in Boushehr, and also to compare these concentrations with global standards. 30 Samples of the investigated fishes were obtained from daily hunting of fishermen in Boushehr. Then the muscle tissues were washed, separated and following acid digestion, the measurement of heavy metals concentration was performed by Atomic absorption spectrometry. The mean of metal concentration of Zn, Pb, Cd, Ni, Fe and Cr for Psettodes erume were 3.11±0.14, 3.20±0.10, 2.64±0.21, 0.36±0.01, 15.44±0.33 and 0.40±0.05 ppb respectively and for Carangoides fulvoguttatus were 1.24±0.07, 0.33±0.01, 0.02±0, 32.35±0, 11.49±0 and 0.61±0.06 ppb respectively and for Thunnus tonggol were 2.34±0.14, 1.82±0.12, 0.02±0, 0.27±0, 13.37±0.07 and 0.30±0.01 ppb respectively. Statistical analysis of the results indicated that significant differences in concentration of Fe, Zn and Pb between different fishes (P<0.05). While concentrations of Cr in between different fishes had no significant differences (P>0.05). The results of this investigation showed that the concentration of heavy metals including Zn, Cr, Fe and Ni in the fish muscle were less than the amounts reported by WHO.

Keywords

References

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Journal of Animal Environment
Volume 10, Issue 2
July 2018
Pages 129-134

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