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Workshop on Aquatic Invertebrate Life-Cycle Testing

ASTM Subcommittee E47.01 on Aquatic Assessment and Toxicology is hosting a Workshop on Aquatic Invertebrate Life-Cycle Testing with Endocrine Considerations. The program will be held the morning of Nov. 9 in Austin, Texas, in conjunction with the standards development meetings of Committee E47 on Biological Effects and Environmental Fate.

Many aquatic invertebrates have hormonally-based endocrine systems subject to disruption by environmental contaminants at sublethal concentrations. Aquatic invertebrate life-cycle tests in current practice use endpoints such as survival, growth, sexual development, and reproduction to inform risk assessment about chemical effects on population fitness and maintenance. Standardized test methods are sorely lacking, however, for assessment of endocrine disruption and endocrine-linked impacts on fitness.

The purpose of this workshop is to: (1) present/explore methods for invertebrate life-cycle testing that are of highest value in detecting/evaluating endocrine disrupting chemicals in freshwater, estuarine and marine systems, (2) using invertebrate models, present methods useful for determining whether or not a chemical is an endocrine disruptor, and (3) discuss the current status of invertebrate testing of endocrine disruptors at the regulatory level and the potential for ASTM standards development. There will be no charge for this workshop.

For more information on the workshop, contact Alan Samel, E.I. Du Pont de Nemours, Newark, Del. (phone: 302/451-0089). For meeting or membership information, contact Scott Orthey, manager, ASTM (phone: 610/832-9730). //

Copyright 2003, ASTM