| Main Title |
Seasonal Chronic Toxicity of Chlorination to the American Oyster, 'Crassostrea virginica' (G). |
| Author |
Scott, Geoffrey I. ;
Middaugh, Douglas P. ;
|
| CORP Author |
Environmental Research Lab., Gulf Breeze, FL. ;South Carolina Univ., Columbia. Belle W. Baruch Inst. for Marine Biology and Coastal Research. |
| Year Published |
1978 |
| Report Number |
EPA/600/J-78/074 ;CONTRIB-360; |
| Stock Number |
PB-290 074 |
| Additional Subjects |
Oysters ;
Toxicology ;
Chlorination ;
Chlorine ;
Shellfish ;
Exposures ;
Seasonal variations ;
Bioassay ;
Concentration(Composition) ;
Temperature ;
Halogens ;
Physiological effects ;
Invertebrates ;
Tables(Data) ;
Toxic substances ;
Crassostrea virginica ;
Reprints ;
Water pollution effects(Animals)
|
| Holdings |
| Library |
Call Number |
Additional Info |
Location |
Last
Modified |
Checkout
Status |
| NTIS |
PB-290 074 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| Collation |
21p |
| Abstract |
Lethal and sublethal effects of chlorination to adult oysters (Crassostrea virginica) were observed during chronic exposures on a seasonal basis. Results show that chronic exposures of oysters to chlorine-produced oxidants (CPO's) can produce mortality at high concentrations and severe sublethal effects at lower levels. Toxicity varies from season to season and is related to seasonal changes in measured CPO concentrations, temperature, and the physiological condition of the oyster. Sublethal effects appear to be related to reductions in feeding and increased avoidance of CPO's. This results in reduced tissue production, causing severe reductions in the size of gonadal tissues and increased dependence in glycogen reserves during exposures to CPO's. |
