Main Title |
Studies on the Depuration of Cadmium and Copper by the American Oyster 'Crassostrea virginica'. |
Author |
Zaroogian, Gerald E. ;
|
CORP Author |
Environmental Research Lab., Narragansett, RI. |
Year Published |
1979 |
Report Number |
EPA-600/J-79-135 ;ERLN-J135; |
Stock Number |
PB81-233793 |
Additional Subjects |
Cadmium ;
Copper ;
Oysters ;
Toxicology ;
Metals ;
Shellfish ;
Water pollution ;
Reprints ;
Depuration ;
Crassostrea virginica ;
Heavy metals ;
Toxic substances
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB81-233793 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
9p |
Abstract |
Few studies concerned with the accumulation of trace metals by the oyster have dealt with depuration. Depuration, or a loss of metal, has been observed during gametogenesis. Spawning has also been implicated in metal loss from the oyster. Some depuration studies have been performed under controlled conditions while others have been performed under natural conditions. In most studies, some depuration of metals was observed. The effect of seawater temperature on metal depuration from the oyster remains uncertain. Shuster and Pringle (1969) reported that metal depuration proceeded more slowly at seawater temperatures of 4-12 degrees than at 20 degrees. The study of Cunningham and Tripp (1975) indicated that mercury clearance in oysters was greater when temperature was held constant at 25 plus or minus 2 degrees C than in a declining temperature regime (25 to 5 degrees C). However, Mandelli (1975) reported that winter conditions were more favorable for copper depletion in oysters. This study was an attempt to establish under laboratory conditions whether treated oysters would depurate accumulated cadmium and copper when returned to cleaner waters containing natural concentrations of these metals. In addition, an attempt was made to determine if cadmium accumulation would promote copper loss in the oyster. |
Supplementary Notes |
Pub. in Bull. Environm. Contam. Toxicol. 23, p117-122 1979. |
NTIS Title Notes |
Journal article. |
Title Annotations |
Reprint: Studies on the Depuration of Cadmium and Copper by the American Oyster 'Crassostrea virginica'. |
PUB Date Free Form |
1979 |
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 |
323802300 |
Origin |
NTIS |
Type |
CAT |