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
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB82-223850 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
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 |