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    STP1443

    Using Semipermeable Membrane Devices (SPMDs) to Assess the Toxicity and Teratogenicity of Aquatic Amphibian Habitats

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    Abstract

    Environmental contamination has been suspected of being partially responsible for recent declines in amphibian populations. It is often not feasible to identify all of the compounds in an environment, nor the concentrations in which they are present. SPMDs are passive sampling devices that uptake lipophilic compounds from the environment in a manner similar to aquatic organisms. The extracts from the SPMDs, therefore, contain a composite sample of the compounds that are present in the environment. In this paper, we outline the methods from studies in which we have used extracts from SPMDs in toxicity tests on amphibian larvae. Using SPMD extracts makes it possible to establish potential links between amphibian deformities and declines and environmental contamination by lipophilic compounds.

    Keywords:

    amphibian declines, amphibian deformity, environmental contamination, SPMD, tadpoles, UV-B radiation


    Author Information:

    Bridges, CM
    General Biologists U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO

    Little, EE
    General Biologists U.S. Geological Survey, Columbia Environmental Research Center, Columbia, MO


    Committee/Subcommittee: E47.04

    DOI: 10.1520/STP11181S