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RECORD NUMBER: 24 OF 338

OLS Field Name OLS Field Data
Main Title Bioaccumulation of Kepone by Grass Shrimp ('Palaemonetes pugio'): Importance of Dietary Accumulation and Food Ration.
Author Fisher, D. J. ; Clark, J. R. ;
CORP Author Environmental Research Lab., Gulf Breeze, FL. ;Maryland Univ., Queenstown. Wye Research and Education Center. ;Manhattan Coll., Bronx, NY.
Publisher c1990
Year Published 1990
Report Number EPA/600/J-90/373;
Stock Number PB91-163865
Additional Subjects Water pollution effects(Animals) ; Pesticides ; Kepone ; Shrimp ; Ingestion(Biology) ; Pharmacokinetics ; Concentration(Composition) ; Reprints ; Bioaccumulation ; Palaemonetes pugio
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB91-163865 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/13/1991
Collation 22p
Abstract
The relative extent of dietary accumulation and bioconcentration of Kepone by grass shrimp (Palaemonetes pugio) was quantitatively evaluated at food rations of 4 and 8% of the average wet weight of the shrimp. (14)C-Kepone was utilized to determine bioconcentration and dietary accumulation separately, while (14)C-Kepone-contaminated food (grass shrimp) and unlabeled Kepone in water were used to determine accumulation from both sources simultaneously. Grass shrimp and their food were exposed to the same aqueous Kepone concentration (0.04 micrograms/l). A first-order pharmacokinetic equation was used to model Kepone accumulation kinetics during the 16-day uptake and 21-day clearance phases. A doubling of contaminated food ration caused a significant increase in the whole-body Kepone concentration in the shrimp. Shrimp fed either a 4% or 8% ration of uncontaminated food and exposed to 0.04 micrograms/l Kepone in water bioconcentrated Kepone to the same level. When shrimp were exposed to contaminated water and food, Kepone contributions from each source were additive.