This study was carried out with the aim of using Saccostrea gigas for biological monitoring heavy metals (Cu and Pb) on the Khor- Musa. Samples of oysters and sediments were collected from the intertidal zone at five different stations in Jan 2011. Sediment and tissue samples were oven dried and acid digested. The metal contents of samples were analyzed using an atomic absorption spectrophotometer. The results showed that Cu and Pb concentrations in the sediment samples are as follows: 17.79 ±1.60 and 6.04 ± 0.95 μg.g-1dw respectively. The metals concentration in the soft tissues of oyster was determined as 518.5 ±16.36 and 9.58 ±1.14 μg.g-1dw for Cu and Pb respectively. Similarly, Cu and Pb concentrations in the shells were found to be at 1.94 ± 0.19 and 2.49 ± 0.51 μg.g-1dw respectively. A Significant correlation was found between Cu and Pb concentration in soft tissue and sediment samples. Similarly correlations between metals contents of sediments and hard tissues were found to be significant,suggesting that the soft tissue of S. gigas should be a useful tool for Cu and Pb monitoring in the study area.
کلید واژگان :Heavy metals, Saccostrea gigas, Biomonitoring, Persian Gulf
ارزش ریالی : 600000 ریال
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