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.|
|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|
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.