Record Display for the EPA National Library Catalog


Main Title Topics on Expressing and Predicting Results of Life-Cycle Tests.
Author Stephan, C. E. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1987
Report Number EPA/600/D-87/214;
Stock Number PB87-209250
Additional Subjects Aquatic biology ; Minnows ; Life cycles ; Invertebrates ; Life tests ; Toxicology ; Ecology ; Regression analysis ; Water pollution effects(Animals)
Library Call Number Additional Info Location Last
NTIS  PB87-209250 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 24p
In April 1967, Mount and Stephan published results of two life-cycle tests using the fathead minnow and introduced the terms 'Maximum Acceptable Toxicant Concentration' (MATC) and 'Laboratory Fish Production Index'. Life-cycle tests can now be conducted with a variety of fishes and invertebrates. The purpose of the paper is to present rationale to answer three questions: Is it better to calculate results by considering data for a smorgasbord of individual biological measurements or for one or a few integrated effects that are commercially, recreationally, or ecologically important; Is it better to calculate results using hypothesis testing or regression analysis; What terminology is appropriate for expressing results of chronic tests. The usefulness of various tests for predicting the results of life-cylce tests cannot be adequately assessed until some of these issues are resolved.