Fish Population Monitoring in the Middle Fork John Day River Intensively Monitored Watershed - Annual Technical Report 2008

Identification Information

Citation

Originator: James, C. A., J. R. Ruzycki, R. W. Carmichael

Publish Date: 2009

Online Link: none

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Ian Tattam

Job Position: Project Leader

Telephone: 541-962-3027

E-Mail Address: Ian.A.Tattam@odfw.oregon.gov

Description

Abstract: Within the Middle Fork John Day River IMW (MFJDR_IMW), several habitat factors have been identified as limiting for the recovery of summer steelhead. Degraded floodplain and channel structure, altered sediment routing, altered hydrology, and water quality (temperature) are cited as limiting factors in the Draft Mid-Columbia Steelhead Recovery Plan (Carmichael 2008). Current and proposed restoration efforts for the MFJDR_IMW are anticipated to address these key limiting factors. In order to assess restoration effectiveness on focal fish species, monitoring and analyses must emphasize population level spatial scales. Fish population monitoring for the MFDJR_IMW includes evaluating summer steelhead and spring Chinook population productivity, survival, and abundance. While abundance is an important metric for population assessments, survival and production will also be key indicators of population responses to planned restoration activities. Freshwater survival is assessed from the parr to smolt life stages (parr to smolt survival) and ocean or out-of-basin survival is estimated as a smolt to adult return ratio (SAR). Freshwater productivity is assessed as smolts produced for constructed redds (smolts/redd). Originator: ODFW, Eastern Oregon Fish Research (EOFR). Funded by Oregon Watershed Enhancement Board (OWEB).

Purpose: 1. Estimate spawner escapement of summer steelhead and spring Chinook to the MFJDR. 2. Estimate freshwater productivity (smolts/redd) of spring Chinook and summer steelhead. 3. Estimate parr-to-smolt survival for summer steelhead and spring Chinook. 4. Delineate seasonal parr rearing habitat.

Time Period of Content: 2007-2008

Geographic Extent: John Day River Basin - Middle Fork

Status: Final

Use Constraints:

Format: pdf

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Is a physical copy maintained for reference at Headquarters? Unknown