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Scientific Report

An Evaluation of CRITFC-Coordinated Habitat Restoration Projects and Limiting Factors to Salmon and Steelhead in the Columbia Basin

Abstract

The Pacific Coastal Salmon Recovery Fund (PCSRF) provides funding projects that are intended to benefit endangered or threatened salmon and steelhead fish populations in the Columbia River basin. The restoration of degraded stream habitat in the is one of the most critical aspects of the recovery of these fish populations. Contemporary assessments such as subbasin planning (2005) have identified the habitat limiting factors that limit fish production. There is no clear method, however, to assess whether a particular project or set of projects are addressing limiting factors. While project proponents may have an intimate knowledge of their project area, and monitoring and evaluation efforts may provide insight into individual project success over a long term, it is difficult for funding and coordinating entities to assess habitat projects and their effects on a regional scale without a method that links these proposals to a standard set of known limiting factors. For this evaluation, we implement a Geographic Information Systems (GIS)-based approach to address this issue by assembling information on major limiting factors, and evaluating the PCSRF projects implemented between 2000 and 2007 by the member tribes of the Columbia River InterTribal Fish Commission (CRITFC). This evaluation illustrates some available data and methods to compare habitat projects and limiting factors, as well as the shortcomings of this approach given current available information.

Authors

Citation

Graves, D. 2009. An Evaluation of CRITFC-Coordinated Habitat Restoration Projects and Limiting Factors to Salmon and Steelhead in the Columbia Basin. Columbia River Inter-Tribal Fish Commission Report reference #09-08, Portland, Oregon.

Date

Dec 1st, 2009

Report No.

09-08

Media Type

CRITFC Technical Report

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