Application of Geomorphic Reaches and Variables to the Yakima River Ecosystems Diagnostic and Treatment (EDT) Model

The purpose of this work was to develop a biophysical classification scheme and measurement protocols that will increase the precision of environmental data for the Yakima Klickitat Fisheries Project (YKFP) Ecosystem Diagnosis and Treatment (EDT) model. The first goal focused on establishing a classification scheme that systematically defines and identifies ecologically homogenous stream reaches within a river basin. The second goal was the development of cost effective protocols used to measure select level two correlates within the EDT model; they include the following: gradient, natural and anthropogenic confinement, minimum and maximum channel width, habitat type composition, riparian function, and measurements of woody debris. The third goal applied the results of protocols for the level two correlates described above to the EDT reaches found within the Easton and Cle Elum floodplains of the Yakima River basin. Utilizing data generated from the previous three goals, the fourth goal was the initial development of a preservation-restoration scheme for the Easton floodplain.

Funding Sources:

Yakima Indian Nation Research Contract. Amount: $100,000.
Dates of Project: 08/02-07/03


Finished Reports:

Gabriel, A., D. Eitimiller, and P. Blanton. 2003. Protocols to Measure and Assess Select Geomorphic and Habitat Correlates for the Yakima Klickitat Fishery Project EDT Model. Geo-ecology Research Group Research Report 8. Ellensburg: Central Washington University. 49 pp.

Related Publications:

Eitemiller, D., Gabriel, A., and P. Blanton. 2003. Development of protocols to measure and assess select geomorphic and habitat correlates for the EDT Model. Presented at the Yakima Basin Aquatic Science and Management Conference, March 25-26, 2003, Central Washington University, Ellensburg, WA.