Predicting fish population response to instream flows
Journal Article
·
· Hydro Review
OSTI ID:443488
- Pacific Gas and Electric, San Ramon, CA (United States)
- Trihey & Associates, Concord, CA (United States)
- Lang, Railsback & Associates, Arcata, CA (United States)
A cooperative research program initiated by Pacific Gas and Electric is described. The goals of the project are to determine if trout populations respond to changes in base streamflows in a predictible manner, and to evaluate and improve the methods used to predict rainbow and brown trout population responses under altered flow regimes. Predictive methods based on computer models of the Physical Habitat Simulation System are described, and predictions generated for four diversions and creeks are tabulated. Baseline data indicates that instream flow assessments can be improved by using guild criteria in streams with competing species and including additional limiting factors (low recruitment, high winter flow, and high stream temperatures) in the analyses.
- OSTI ID:
- 443488
- Journal Information:
- Hydro Review, Journal Name: Hydro Review Journal Issue: 6 Vol. 15; ISSN HYREE8; ISSN 0884-0385
- Country of Publication:
- United States
- Language:
- English
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