Title
Evolution and Application of Instream Flow Methodologies to Small Hydropower Developments: An Overview of the Issues
Publication Date
1985
Publication Title
Proceedings of the Symposium on Small Hydropower and Fisheries
Start Page
176
End Page
183
Editors
Olson FW;White RG;Hamre RH;
Publication Place
Bethesda, MD
Publisher
American Fisheries Society
Abstract
Methods for evaluating instream flow needs have evolved over the last 30 years resulting in two categories which are defined as 'standard-setting' and 'incremental.' Standard-setting methodologies refer to those measurement and interpretive techniques designed to generate a flow value(s) which is intended to maintain the fishery at some acceptable level. Incremental methodologies on the other hand are organized and repeatable processes by which: (1) a fishery habitat/streamflow relationship and the hydrology of the stream are transformed into a baseline habitat time series; (2) proposed water management alternatives are quantified and compared with the baseline; and (3) project operating rules are negotiated. A hierarchical approach to small-hydro instream flow analysis is suggested.
Notes
ISBN 0-913235-37-7