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Main Title Aquatic habitat indicators and their application to water quality objectives within the Clean Water Act /
Author Bauer, Stephen B. ; Bauer, Stephen Bernard. ; Ralph, S. C.
Other Authors
Author Title of a Work
Ralph, Stephen C.
CORP Author Environmental Protection Agency, Seattle, WA. Region X. ;Idaho Univ., Moscow. Water Resources Research Inst.
Publisher United States Environmental Protection Agency Region 10,
Year Published 1999
Report Number EPA 910-R-99-014
Stock Number PB2000-100272
OCLC Number 42633073
Subjects Water quality management--United States ; Indicators (Biology) ; Water quality--United States ; Water--Pollution--Law and legislation--United States ; Quality of water--Biological indicators
Additional Subjects United States--Federal Water Pollution Control Act ; Alaska ; Pacific Northwest(US) ; Water qaulity ; Clean Water Act ; Environmental monitoring ; Aquatic habitats ; Salmonids ; Fresh water ; Lotic environment ; Riparian waters ; Channel morphology ; Banks(Waterways) ; Stream flow ; Substrates ; Water temperature ; Biological communities ; Man environmental interactions ; Biological effects ; Variables ; Aquatic habitat indicators ; Environmental indicators
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
EJBD  EPA 910-R-99-014 Headquarters Library/Washington,DC 03/02/2020
ELDD  EPA 910-R-99-014 CCTE/GLTED Library/Duluth,MN 06/15/2001
ERAD  EPA 910/R-99-014 Region 9 Library/San Francisco,CA 08/31/2009
ESAD  EPA 910-R-99-014 3 copies Region 10 Library/Seattle,WA 06/13/2016
NTIS  PB2000-100272 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 99 pages : illustrations, maps ; 27 cm
The objective of this paper is to evaluate the application of aquatic habitat variables to water quality objectives under authority of the Clean Water Act (CWA). The project is limited to freshwater, lotic aquatic habitats in the Pacific Northwest and Alaska with an emphasis on salmonid habitat. Habitat variables were placed into one of the following categories - flow regime, habitat space, channel structure, substrate quality, streambank condition, riparian condition, temperature regime, and habitat access. Candidate habitat variables were evaluated for their relevance to the biotic community, responsiveness to human impacts, applications to target landscapes, and measurement reliability. The most critical obstacles for use of habitat variables at the regional level (state specific water quality criteria for Region 10 EPA) are the quantification of biological effect and the unreliability of the unreliability of the measurement system.
"EPA 910-R-99-014." "July 1999." Cover title. "This document was developed for the US Environmental Protection Agency, Region 10, Seattle Washington, with the Idaho Water Resources Institute, University of Idaho." Includes bibliographical references (pages 70-77).
Contents Notes
Challenges in developing habitat quality indicators -- Effect of natural disturbance on stream conditions -- Salmonid habitat requirements and land use effects -- Alteration of salmonid habitats by land-use practices -- Landscape context for habitat indicators -- Derivation of habitat indicator variables and stream classification -- Approach to habitat quality indicators -- Evaluation of potential aquatic habitat indicators -- Streambank and riparian condition -- Water column chemistry, habitat access & watershed condition -- Use of physical habitat variables in monitoring -- Case study of precision of physical habitat variables -- Application to water quality standards.