Bioaccumulation of Heavy Metals Ni and Cd Concentrations in the Tissues of Skeletal Coral family, Poritidae and Surrounding Sediments in the South of Qeshm Island, The Persian Gulf

The following research was conducted to study the concentration of Ni and Cd in skeletons and sediments of dominant hard coral family and Poritidae in Zeyton Park, Naz Islands and Shibderaz stations, South of Qeshm Island Persian Gulf. The analysis of these heavy metals in digested samples of skeletons and sediments was done applying Graphite furnace Atomic Absorbtion Spectophotometry SHIMADZU, AA 670 for measuring the levels of Cd and Flame Atomic Absorbtion Spectophotometry SHIMADZU, AA 670 for measuring the levels of Ni.The concentration of Ni in skeleton of coral family Poritidae in Shib-deraz station 29/95, in Naz Islands 27/94 in Zeyton Park 26/16 and the concentration of Ni in sediments of coral in Zeyton Park station 27/91 in Naz Islands station 25/70 and in Shib-deraz station 25/50.The results indicated that there are significant statistical differences toward concentration of Ni in skeleton of coral family Poritidae among Zeyton Park, Naz Islands Shib-deraz stations (P<0.001). But Cd concentration is not significant (P=./992) In addition, considering the concentration of Ni and Cd in sediments of coral familie Poritidae there are significant differences (P<0.05 and P<0.001 respectively). Long term pollution monitoring by heavy metals is of great importance in managing coastal areas. So, concerning the immense importance of coral ecosystem in southern Qeshm Islands and the result of this research, corals can be suggested as a pollution biomonitor