Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Biological Effects of Continuous and Intermittent Dosing of Outdoor Experimental Streams with Chlorpyrifos.
Author Eaton, J. ; Arthur, J. ; Hermanutz, R. ; Kiefer, R. ; Mueller, L. ;
CORP Author Environmental Research Lab.-Duluth, MN.
Year Published 1985
Report Number EPA/600/D-86/024;
Stock Number PB86-156601
Additional Subjects Invertebrates ; Pesticides ; Stream pollution ; Fresh water fishes ; Benthos ; Aquatic plants ; Survival ; Growth ; Dosage ; Phosphorus organic compounds ; Concentration(Composition) ; Toxicity ; Experimental design ; Reprints ; Bioindicators ; Chloropyrifos
Library Call Number Additional Info Location Last
NTIS  PB86-156601 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 35p
Two outdoor experimental streams fed by water pumped from the Mississippi River were dosed with the organophosphorus pesticide chlorpyrifos (the active ingredient of Dursban and Lorsban 4E insecticides) for 100 days, and the responses of individual species and communities compared to those of a control stream. Chlorpyrifos was continuously metered into one stream whereas the other received 8 biweekly additions, each lasting 24 h. at 14 times the concentration in the continuously dosed stream. Therefore, nearly equal amounts of pesticide were introduced into each stream during the experiment. The biological study area of each stream was approximately 245 m long, contained a naturally colonizing plant and invertebrate assemblage, and was stocked with fathead minnows and bluegills. (Copyright (c) American Society for Testing and Materials 1985.)