instream flow incramental methodology

Ecological and geomorphological concepts for instream and out-of-channel flow requirements

Source: 
Rivers
Volume: 
Vol. 2, pp. 198-210
Year: 
1991
Abstract: 

Healthy fish populations are dependent on streamflow regimes that protect the ecological integrity of their habitat. Fish habitats are the consequence of linkage among the stream, floodplain, riparian, and upland zones, and watershed geography. Fluvial-geomorphic processes form and control fish habitat. Because of this, multiple in-channel and out-of-channel flows are needed to maintain these processes. We present a conceptual methodology for measuring tour types of streamflow regimes: instream flows, channel maintenance flows, riparian maintenance flows, and valley maintenance flows. The combination of these four streamflow types is designed to protect fish and their habitat. Using a case study of the Salmon River near Whitebird, Idaho, we demonstrate how the methodology could be used to develop a multiple flow recommendation. 

Author(s): 

Hill, M.T., Platts, W.S., Beschta, R.L.

Contact: 
Notes: 
Category: