Measurement of heavy metal concentrations Cd, Pb, Zn in bivalve shells Saccostrea cucullata and Solen brevis Inter-tidal areas of the Bandar-e-Lengeh and Bushehr

In this study, concentration of Cd, Zn and Pb metals has been surveyed with sampling of surface sediment, Saccostrea cucullata and Solen brevis from six stations at Bandare Lengeh and Bushehr in fall 2010 and spring 2011 respectively. The results obtained show that the pattern of metals accumulation in surface sediment in Bandare Lengeh was Pb>Zn>Cd, whilethe average concentration of heavy metals in surface sediment in Bushehr was Zn>Pb>Cd. The findings also indicated that there is a significant and positive correlation between Zn and Pb concentrations in soft tissue and shell in the both of two species and their concentrations in sediment respectively. It is noticeable that there was no observed a similar pattern for Cd metals in both of two species, so that in Saccostrea cucullata there was showed a positive and significant correlation between soft tissue of oyster and sediment, while in Solen brevis there was recorded a positive and significant correlation between Cd concentrations in the shell of Solen brevis and sediment.