Published: Jan 1979
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Extensive testing has shown that Kepone is rapidly accumulated by estuarine animals when administered in water or food. Flow-through laboratory experiments with oysters, shrimp, crabs, and fish indicate that the food-chain transfer of Kepone is important in predicting Kepone residues in estuarine organisms. The rates of Kepone movement through estuarine organisms were previously unknown; rates of uptake and depuration by these organisms were determined with a regression model that describes mathematically the uptake and depuration of Kepone by these organisms. The model describes biological data as a single equation, thus allowing variations, due to many physical, chemical, biological, and random-error factors, to be analyzed simultaneously.
The direct application of this model to cautious extrapolation will aid administrative decisions that affect water quality. The rates calculated by this single-species model can be also used in developing models that can predict the long-term fate of Kepone or of other pollutants in an estuarine environment.
Kepone, estuarine biota, food chain, uptake (bioconcentration), model (mathematical), aquatic toxicology
Aquatic biologist, Environmental Research Laboratory, U.S. Environmental Protection Agency, Gulf Breeze, Fla.
Associate professor, Faculty of Mathematics and Statistics, University of West Florida, Pensacola, Fla.