BPA Fish and Wildlife FY 1997 Proposal
Section 1. Administrative
Section 2. Narrative
Section 3. Budget
see CBFWA and BPA funding recommendations
Title of project
Evaluation of Adult Salmonid Distribution in Relation to Dissolved Gas Supersaturation
BPA project number 5515700
Business name of agency, institution or organization requesting funding
Sponsor type Placeholder
Proposal contact person or principal investigator
BPA technical contact ,
Biological opinion ID Research M&E Program; Hypothesis B.2.5
NWPPC Program number
Using depth-sensitive radio tags, this project will attempt to evaluate adult salmonids’ “ability” to avoid varying levels of total dissolved gas. In a more general assessment, adult fish migration patterns in relation to DGS would be determined through standard radio tracking methodology.
Project start year 1997 End year
Start of operation and/or maintenance 0
Project development phase PLANNING & IMPLEMENTATION
Biological results achieved
Annual reports and technical papers
Knowledge of adult fish’s exposure history to DGS is necessary to make informed operational decisions to manage DGS and its potential adverse impacts to migrating salmon. It is particularly important to understand risks of DGS to adult migrants that results from operational decisions intended to benefit juvenile migrants, to ensure that the overall net effect is positive.
Specific measureable objectives
Hypothesis B.2.5: Adult salmon and steelhead do not detect and avoid river areas and depths that contain high levels of total dissolved gas
Underlying assumptions or critical constraints
Adult condition should be monitored at various points in the mainstem migration route . If adults do not avoid areas of high TDG, effects of exposure to high TDG may be detectable at adult sampling points: BON, PRD, and LGR are suggested.
Brief schedule of activities
Depth-sensitive radio tags can yield data useful in evaluating response of adults to DGS. Only one study is available to demonstrate any ability of adults to swim deeper to avoid high DGS. The information is equivocal and should be augmented. The study should include determination of patterns of DGS in study reaches through which tagged adults move. This study should probably be correlative, using ambient river DGS patterns and examining adult behavior in response to those patterns. Risks of adult salmonid exposure to DGS is critical to ensure that benefits of fish spill for juvenile migrants is not offset by effects on adult migrants.
Summary of expected outcome
A multi-year and multi-project analysis of adult movements in relation to varying levels of DGS and range of operational and environmental conditions.
Dependencies/opportunities for cooperation
May be integrated into ongoing adult passage evaluations by UI/NMFS under Corps’ project.
Adult condition should be monitored at various points in the mainstem migration route. If adults do not avoid areas of high TDG, effects of exposure to high TDG may be detectable at adult sampling points: BON, PRD, and LGR are suggested.
|Historic costs||FY 1996 budget data*||Current and future funding needs|
|(none)||New project - no FY96 data available||1997: 300,000|
* For most projects, Authorized is the amount recommended by CBFWA and the Council. Planned is amount currently allocated. Contracted is the amount obligated to date of printout.
CBFWA funding review group System Policy
Recommendation Tier 2 - fund when funds available
Recommended funding level $300,000