Record Display for the EPA National Library Catalog

RECORD NUMBER: 17 OF 29

OLS Field Name OLS Field Data
Main Title Identification of Predominant Environmental Factors Structuring Stream Macroinvertebrate Communities Within a Large Agricultural Catchment.
Author Richards, C. ; Host, G. E. ; Arthur, J. W. ;
CORP Author Minnesota Univ.-Duluth. Natural Resources Research Inst.;Environmental Research Lab.-Duluth, MN.
Publisher c1993
Year Published 1993
Report Number EPA-R-814950; EPA/600/J-94/246;
Stock Number PB94-177722
Additional Subjects Invertebrates ; Streams ; Catch basins ; Environmental impacts ; Water pollution effects ; Agriculture ; Habitats ; Soil properties ; Chemical analysis ; Benthos ; Nutrients ; Nitrogen oxides ; Phosphorus ; Substrates ; Michigan ; Sites ; Reprints ; Macroinvertebrates ; Plecoptera ; Ephemeroptera ; Trichoptera
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB94-177722 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/01/1994
Collation 10p
Abstract
Patterns of macroinvertebrate community composition were examined in streams within a 40,000-sq km catchment in central Michigan, U.S.A., to identify the major environmental gradients influencing community variation. Agriclture and associated clay and sandy soils predominated in much of the region. The objective of the present study was to quantify variation in composition and abundance of stream macroinvertebrate fauna within a large agricultural catchment in terms of environmental variation in water quality and stream habitat features. The intent was to determine whether particular classes of environmental variables (habitat or chemical) account for a significant proportion of variability in community composition.