Record Display for the EPA National Library Catalog

RECORD NUMBER: 20 OF 25

OLS Field Name OLS Field Data
Main Title Ordination of Aquatic Nematode Communities as Affected by Stream Water Quality.
Author Callahan, C. A. ; Ferris, V. R. ; Ferris, J. M. ;
CORP Author National Heart, Lung, and Blood Inst., Bethesda, MD.
Year Published 1979
Report Number EPA-600/J-79-107;
Stock Number PB81-100281
Additional Subjects Nematodes ; Streams ; Water pollution ; Indicator species ; Density(Mass/volume) ; Nitrogen ; Inorganic phosphates ; Oxygen ; Dissolved gases ; Statistical analysis ; Benthos ; Substrates ; Concentration(Composition) ; Reprints ; Bioindicators ; Water quality data
Holdings
Library Call Number Additional Info Location Last
Modified
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Status
NTIS  PB81-100281 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 22p
Abstract
Benthic nematodes were sampled at 16 sites on two streams to investigate the relationships of nematode community structure to various water quality factors. A prominence value for each species was calculated for use in three-dimensional community ordination. Species composition of the sites, nematode density, and species interaction with certain physico-chemical factors were significant in determining the pattern, or clustering, of the sites in the ordinations.