Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Evaluating Two Objective Techniques to Define Pools in Small Streams.
Author Robison, E. G. ; Kaufmann, P. R. ;
CORP Author Oregon State Univ., Corvallis. ;Corvallis Environmental Research Lab., OR.
Publisher Jun 93
Year Published 1993
Report Number EPA/600/A-94/071;
Stock Number PB94-170131
Additional Subjects Habitats ; Fishes ; Ponds ; Streams ; Channels ; Animal ecology ; Surface waters ; Morphology ; Graphs(Charts) ; Oregon ; Pools
Library Call Number Additional Info Location Last
NTIS  PB94-170131 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 09/01/1994
Collation 12p
Human induced changes on stream morphology and fish habitat in wadable streams are often difficult to detect. This detection is often hampered by using nonquantitative techniques to describe morphology. To aid in monitoring changes in the size and longitudinal pattern of pools along streams, the residual pool concept was developed in the 1980s. This paper evaluates two variations of a rapid field technique that quantifies residual pools. The techniques require only an overall reach slope estimate with measures of thalweg depth and wetted width at short intervals of longitudinal distance. The authors evaluated the technique on 27 stream reaches in Willamette Valley, Coast Range, and Cascade Mountains of Western Oregon, U.S.A. Residual pools in these streams were quantified using both a rapid and a more rigorous method.