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RECORD NUMBER: 299 OF 845

OLS Field Name OLS Field Data
Main Title Effect of Cadmium Body Burdens in Adult 'Crassostrea virginica' on Fecundity and Viability of Larvae.
Author Zaroogian, G. E. ; Morrison, G. ;
CORP Author Environmental Research Lab., Narragansett, RI.
Year Published 1981
Report Number ERLN-194 ;EPA-600/J-81-119;
Stock Number PB82-223850
Additional Subjects Cadmium ; Oysters ; Toxicology ; Metals ; Larvae ; Concentration(Composition) ; Reproduction(Biology) ; Salinity ; Temperature ; Shellfish ; Reprints ; Heavy metals ; Crassostrea virginica
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NTIS  PB82-223850 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 7p
Abstract Adult oysters (Crassostrea virginica) were treated for a minimum of 33 weeks with ambient (control), 5, and 15 micrograms Cd/kg seawater at ambient salinity and temperature. After the oysters were induced to spawn, all possible cross-fertilizations between treatments were obtained by mixing the appropriate sperm suspension with the selected egg-seawater treatments. Despite cadmium concentrations as high as 270 micrograms Cd/kg dry weight in the total soft parts, oysters spawned heavily. A minimum of 93% of the embryos resulting from control parents developed into normal larvae when incubated in ambient seawater. As much as 29% of the embryos from control parents failed to develop, or developed into abnormal larvae upon incubation in 15 micrograms Cd/kg seawater. Twenty-four percent of the embryos resulting from the parents treated with seawater containing 15 micrograms Cd/kg developed into abnormal larvae when incubated in seawater containing 15 micrograms Cd/kg. Under the conditions of this study, it appears that seawater containing 15 micrograms/kg of cadmium has a greater impact on embryonic development than on gametogenisis.
Supplementary Notes Pub. in Bulletin of Environmental Contamination and Toxicology, v27 p344-348 1981.
NTIS Title Notes Journal article.
Title Annotations Reprint: Effect of Cadmium Body Burdens in Adult 'Crassostrea virginica' on Fecundity and Viability of Larvae.
PUB Date Free Form 1981
Category Codes 6T; 6F; 57Y; 68D
NTIS Prices PC A02/MF A01
Primary Description 600/05
Document Type NT
Cataloging Source NTIS/MT
Control Number 323816723
Origin NTIS
Type CAT