Proposal title | Survival Estimates for the Passage of Juvenile Salmonids Through Snake and Columbia River Dams and Reservoirs |
Proposal ID | 199302900 |
Organization | National Marine Fisheries Service (NMFS) |
Proposal contact person or principal investigator |
Name | William D. Muir |
Mailing address | NWFSC, Fish Ecology Division, 2725 Montlake Boulevard, East Seattle, WA 98112-2097 |
Phone / email | 5095382626 / bill.muir@noaa.gov |
Manager authorizing this project | Dr. John G. Williams |
Review cycle | FY 2001 Ongoing |
Province / Subbasin | Systemwide / Systemwide |
Short description | Provide precise measurements of survival of juvenile salmon as they pass through dams and reservoirs in the Snake and Columbia Rivers |
Target species | |
Year | Accomplishment |
1997 |
Estimated survival for yearling chinook salmon and steelhead from above Lower Granite Dam to the tailrace of Bonneville Dam and reaches between. |
|
Estimated survival for hatchery subyearling fall chinook salmon from above Lower Granite Dam to Lower Monumental Dam and quantified relationships among survival, travel time, and environmental variables. |
|
Determined areas of loss and delay for yearling chinook salmon between the hatchery and the head of Lower Granite Reservoir for Lookingglass hatchery fish using combination radio/PIT tags. |
1998 |
Estimated survival for yearling chinook salmon and steelhead from above Lower Granite Dam to the tailrace of Bonneville Dam and reaches between. |
|
Estimated survival for hatchery subyearling fall chinook salmon from above Lower Granite Dam to Lower Monumental Dam and quantified relationships among survival, travel time, and environmental variables. |
|
Estimated survival through McNary Dam's bypass system for yearling chinook salmon. |
|
Determined areas of loss and delay for yearling chinook salmon between the hatchery and the head of Lower Granite Reservoir for Lookingglass hatchery fish using combination radio/PIT tags. |
1999 |
Estimated survival for yearling chinook salmon and steelhead from above Lower Granite Dam to the tailrace of Bonneville Dam and reaches between. |
|
Estimated survival for hatchery subyearling fall chinook salmon from above Lower Granite Dam to Lower Monumental Dam and quantified relationships among survival, travel time, and environmental variables. |
|
Estimated survival through McNary Dam's bypass system and from the tailrace of McNary Dam to the tailrace of John Day Dam for river run subyearling fall chinook salmon. |
Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
1. Determine numbers of fish of each species to be PIT-tagged based on scale of other tagging efforts in the basin. |
a. Determine numbers of PIT-tagged fish to be released by other researchers for each species. |
|
$10,900 |
|
1. |
b. Determine numbers of fish to be PIT-tagged by this project, combined with fish tagged by others, to estimate survival with acceptable precision. |
|
$10,900 |
|
2. Obtain necessary Endangered Species Act and other permits to conduct study. |
a. Apply for ESA Section 10 permit (or modify current permit) to conduct planned study. |
|
$11,300 |
|
2. |
b. Apply for state (Oregon and Washington) Scientific Collection Permits to conduct planned study. |
|
$5,800 |
|
Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
1. Provide annual estimates of survival for spring-migrating juvenile salmonids through Snake and Columbia River dams and reservoirs. |
a. PIT-tag and release juvenile salmonids at Lower Granite Dam as needed. |
|
$105,300 |
|
1. |
b. Estimate detection and survival probabilities (with standard errors) for above releases. |
|
$106,600 |
|
1. |
c. Estimate survival for PIT-tagged fish released in other studies in the basin (hatcheries, traps, etc.). |
|
$100,000 |
Yes |
2. Estimate survival through longer reaches of the Snake and Columbia Rivers. |
a. Evaluate post-detection bypass survival at new PIT tag facilities. |
|
$37,700 |
|
2. |
b. Explore use of additional PIT tag detection sites (such as PIT tag towed array system, recoveries from Rice Island Caspian Tern colony) in survival estimation. |
|
$41,400 |
|
3. Partition mortality between release at hatcheries (and natal streams for wild fish) and the head of Lower Granite Reservoir. |
a. Deploy a series of streambed flat-plate PIT tag detectors in tributaries above Lower Granite Dam. |
|
$61,600 |
|
3. |
b. Estimate survival through tributaries for wild and hatchery fish. |
|
$64,500 |
|
4. Estimate survival of subyearling fall chinook salmon migrating through the Snake and Columbia Rivers. |
a. Release PIT-tagged Lyons Ferry Hatchery subyearling fall chinook salmon into the free-flowing Snake and Clearwater Rivers. |
|
$133,000 |
|
4. |
b. Estimate their survival through the Snake River and compare to estimates of survival for wild migrants in this reach. |
|
$65,200 |
|
4. |
c. PIT tag and release river run (mostly wild) fall chinook salmon at McNary Dam in the bypass system and tailrace. |
|
$305,200 |
|
4. |
d. Estimate their survival through the bypass system at McNary Dam and through the lower Columbia River. |
|
$60,200 |
|
5. Explore relationships between smolt survival through the Snake and Columbia Rivers and flow, travel time, temperature, and dam operations using a long-term data set. |
a. Correlate survival estimates with flow, travel time, temperature, turbidity, and dam operations for individual years and over multiple years. |
|
$75,100 |
|
This information was not provided on the original proposals, but was generated during the review process.