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    Test of a Model for Predicting Kepone Accumulation in Selected Estuarine Species

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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

    Author Information:

    Bahner, LH
    Aquatic biologist, Environmental Research Laboratory, U.S. Environmental Protection Agency, Gulf Breeze, Fla.

    Oglesby, JL
    Associate professor, Faculty of Mathematics and Statistics, University of West Florida, Pensacola, Fla.

    Committee/Subcommittee: E35.26

    DOI: 10.1520/STP34890S