FILTRATION IN SOME TROPICAL INTERTIDAL BIVALVES EXPOSED TO MERCURY AND CADMIUM MIXTURES

Abstract

Three species of intertidal filter feeding bivalves; M odiolus carvalhoi, M odiolus sp. and Donax spiculum, exposed to mercury and cadmium filtered significantly less volume of water under individual metal and metal mixture stress. Mercury and cadmium in mixtures interacted additively and more than additively (Synergism) in depressing the
filtration rate of the bivalves.