OXYGEN CONSUMPTION UNDER COPPER AND ZINC STRESS IN PERNA VIRIDIS

Abstract

The rate of oxygen consumption by Perna viridis pre-exposed to copper and zinc was studied.Those test induviduals pre-exposed to various zinc concentrations showed variability in Oxygen consumption irrespective of concentrations and pre exposure period. while those animals  pre-exposed to various copper concentrations regesterd decrease in oxygen consumption at concentrations above 0.06 p.p.m. copper pre- exposure to concentrations below 0.02 p.p.m. copper did not result in any cleare cu change in the rate of oxygen consumption.