Record Display for the EPA National Library Catalog
RECORD NUMBER: 12 OF 19| Main Title | Ordination of Aquatic Nematode Communities as Affected by Stream Water Quality. | |||||||||||
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| 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 | |||||||||||
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| 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. |