Evaluation of Large Wood Treatment on Habitats and Fish Populations of Green River and Crab Creek, Tributaries of Five Rivers in the Alsea Basin

Identification Information

Citation

Originator: Bio-Surveys, LLC & Sialis Company

Publish Date: March 2007

Online Link: None

BPA Project #:

Contact Information

Agency: Oregon Watershed Enhancement Board

Name: Steve Trask

Job Position: Consultant

Telephone: 541-753-7348

E-Mail Address: strask@casco.com

Description

Abstract: During October 2002, 465 tree-length Douglas Fir trees were placed in the lower portions of Green River, EF Green River and Crab Creek of the Alsea River Basin as part of an aquatic habitat restoration project. This report describes the effects of this treatment on channel structure and Coho populations of the treated sections of these streams. The project encompassed seven years of pre- and post-treatment effectiveness monitoring that extended from 2001 to 2007.

Purpose: The treatment goal was to introduce sufficient large wood to insure the development of quantifiable changes in both aquatic habitats and the abundance, distribution, and over-winter retention rates of juvenile Coho salmon. The principle goal was to determine how habitat conditions and fish populations changed over time on the 6th field sub basin scale.

Time Period of Content: July 2000 - October 2006

Geographic Extent: Greed River, EF Green River and Crab Creek of the Alsea River Basin

Status: Final

Use Constraints:

Format: Map - PDF File; Final Report, Photos - Word Documents

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Is a physical copy maintained for reference at Headquarters? Unknown