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RECORD NUMBER: 1616 OF 1860

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)
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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.
Supplementary Notes Pub. in Water Chlorination: Environmental Impact and Health Effects, v2 p311-328 1978. Also pub. as South Carolina Univ., Columbia. Belle W. Baruch Inst. for Marine Biology and Coastal Research, Contrib-191.
NTIS Title Notes Journal article (Final).
Title Annotations Reprint: Seasonal Chronic Toxicity of Chlorination to the American Oyster, 'Crassostrea virginica' (G).
PUB Date Free Form 1978
Category Codes 6T; 6F; 8A; 57Y; 68D; 47D
NTIS Prices PC A02/MF A01
Primary Description 600/04
Document Type NT
Cataloging Source NTIS/MT
Control Number 323754567
Origin NTIS
Type CAT