Bio-accumulation of Copper, Zinc, Iron and Manganese in Oyster Saccostrea cucullata, Snail Cerithium rubus and Clam Tellina angulata from the Bombay Coast


  • L. Krishna Kumari
  • Vijayalakshmi R. Nair
  • C. M. Moraes


Bio-accumulation, oyster, clam, snail, coastal waters


Metal content was determined in three groups of molluscs - an oyster Saccostrea cucullata, snail Cerithium rubus and clam Tellina angulata from three sites along the Bombay coast. Seasonal difference in copper content was significant in S. c. and C. r. Sexwise, iron content was high in male and manganese in female oysters. In T. a male specimens showed maximum zinc content. Stationwise, difference in copper and iron was significant in C. r. In general, copper and zinc accumulation was high in S. c, manganese in C. r and iron in T. a. Similarly, copper and zinc in S. c and copper in C. r were found occasionally higher than accepted health standards.