Metal Accumulation in the Edible Marine Snail Turbo Coronatus (Gmelin) from Different Locations in Bahrain PDF

Keywords

Turban shell, spatial, temporal, metal accumulation, Bahrain

Abstract

The concentration of seven trace metals (Fe, Ni, Zn, Mn, Pb, Cu, Cd) in the soft tissue of Turbo coronatus (Gmelin) from five nearshore areas were studied. The mean concentration of each trace metal in the edible marine snail exhibited significant spatial variations. The highest concentration of Zn, Mn, Cu and Cd occurred at Jazirat Al-Shaikh (Askar), Al-Jadoom, Al-Qulayah, and Fasht Al-Jarim, respectively. However, maximum Fe level was recorded at Fasht Al-Jarim. In addition, the metal concentration showed significant seasonal variation. The highest concentration of Zn and Cd was in September and March, respectively, when algae was assumed to be abundant. The elevated values of Zn (47.77 ug g) and Cd (1.29 ugg') could be associated with spawning season.