Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Effects of Environmental Factors on Radiocadmium Uptake by Four Species of Marine Bivalves.
Author Jackim, E. ; Morrison, G. ; Steele, R. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Year Published 1976
Report Number EPA/600/J-77/158;
Stock Number PB-299 299
Additional Subjects Cadium ; Toxicology ; Temperature ; Salinity ; Sediments ; Zinc ; Reprints ; Concentration(Composition) ; Radioactive isotopes ; Metals ; Water pollution ; Nucula proxima ; Bioaccumulation ; Mya arenaria ; Mytilus edulis ; Mulinia lateralis ; Toxic substances
Library Call Number Additional Info Location Last
NTIS  PB-299 299 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/23/1988
Collation 8p
Temperature, salinity, bottom-sediment type, and zinc concentration all influenced Cd uptake by 4 marine bivalves (Mya arenaria, Mytilus edulis, Mulinia lateralis and Nucula proxima) in short-term static assay systems using 109Cd as a tracer. The experimental system consisted of aquaria containing 20 1 of seawater maintained under controlled light and temperature conditions. The water contained either 5 or 20 micrograms/l Cd and tracer. Distribution and kinetics of the metal were monitored in the water column and organisms. The results demonstrate that Cd uptake rates differed widely among the organisms tested. An increase in temperature increased Cd uptake rate by all test organisms. A decrease in salinity increased Cd uptake by all organisms tested. The presence of bottom sediment depresses Cd accumulation in some benthic animals. Zinc in concentrations of 0.5 mg/l substantially decreased Cd uptake by Mytilus edulis and Mulinia lateralis. It is suggested that all important species and environmental variables be considered when studying heavy-metal uptake by marine organisms or when establishing water-quality criteria.