Occurrence of Elysia grandifolia (Mollusca, Gastropoda), and its radionuclide content from Tarapur coastal waters, west coast of India

Occurrence, morphological features, feeding habits, metal and radionuclide content of an opisthobranch sacoglossan Elysia grandifolia Kelaart have been reported. Mn was highest in E. grandifolia whereas Zn was most abundant in eggs. Radionuclide super(131)I was most abundant in tissues 1.4 Bq/g dry weight and in eggs 0.8 Bq/g dry weight. Radionuclide super(60)Co in eggs was, 1.0 Bq/g dry weight and in tissues, 0.08 Bq/g dry weight. Possibility of using the species and eggs as indicators for super(131)I and super(60)Co radionuclides in marine environment is discussed.