Proposal title | Comparative Survival Rate Study (CSS) of Hatchery Pit Tagged Chinook & Comparative Survival Study Oversight Committee |
Proposal ID | 199602000 |
Organization | Pacific States Marine Fisheries Commission & Columbia Basin Fish & Wildlife Foundation (PSMFC/CBFWF) |
Proposal contact person or principal investigator |
Name | Michele De Hart, Fish Passage Center |
Mailing address | 2501 SW First Ave., Suite 230 Portland, OR 97201-4752 |
Phone / email | 5032304288 / mdehart@fpc.org |
Manager authorizing this project | Michele DeHart |
Review cycle | FY 2001 Ongoing |
Province / Subbasin | Systemwide / Systemwide |
Short description | Adult and juvenile PIT tag recovery data are analyzed to compare survival estimates for transported fish of known origin, downriver stocks, wild and hatchery transported fish and fish handled and not handled at dams. |
Target species | |
Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
1. Develop a long-term index of transport survival rate (smolt-to-adult) to inriver survival rate (smolt-to-adult) for Snake River hatchery spring & summer chinook smolts. |
a. Compute annual ratio of transport survival rate to inriver survival rate. |
20% of Objective 1-5 total |
$159,752 |
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b. Test if the annual ratio of transport survival rate to inriver survival rate (measured at LGR w/associated confidence interval. |
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$0 |
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c. Evaluate inriver controls obtained from fish PIT tagged at the hatcheries have higher smolt-to-adult survival rates to LGR than inriver controls from migrating fish that were collected, handled, and PIT tagged at LGR. |
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$0 |
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2. For Snake River basin hatcheries, develop a long-term index of survival rates from release of smolts at hatcheries to return of adults to hatcheries. |
a. Partition survival rates (i) from hatchery (smolts) to Lower Granite Dam (smolts), (ii) from Lower Granite Dam (smolts) back to Lower Granite Dam (adults), and (iii) from Lower Granite Dam (adults) to the hatchery (adults). |
20% of Objective 1-5 total |
$159,752 |
|
|
b. For the combined Snake River hatcheries, compute the annual survival rate of smolts transported at Lower Granite Dam to adult returns to the hatcheries. |
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$0 |
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c. For the combined Snake River hatcheries, compute the annual survival rate of smolts migrating inriver to adult returns to the hatcheries. |
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$0 |
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d. Explore the feasibility of increasing mark sizes to improve precision in the annual ratio of transport survival rate to inriver survival rate [Task 1 (a)] measured back to the hatchery. |
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$0 |
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3. Compute and compare overall smolt-to-adult survival rates for selected upriver and downriver spring and summer chinook hatcheries. |
a. Compute annual hatchery survival rates (adjusted for terminal harvest rates) using both CWT and PIT tags for selected upriver and downriver hatchery stocks. Compare survival rates of CWT & PIT tag estimates. Estimate survival rates (smolt-to-adult) |
20% of Objective 1-5 total |
$159,752 |
|
|
b. Compute an annual ratio of downriver hatchery survival rate to upriver hatchery survival rate (all measured at the hatcheries and adjusted for terminal harvest) with associated confidence interval. |
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$0 |
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c. Test if the annual ratio of downriver hatchery survival rate to upriver hatchery survival rate (all measured at the hatcheries) is greater than 2.0 with sufficient power to provide a high probability that the ratio is greater than 1.0. |
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$0 |
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d. Test aggregately & individually the annual ratio of downriver hatchery survival rate to upriver hatcheries transported smolts survival rate is greater than 2.0 with sufficient power to provide a high probability that the ratio is greater than 1.0. |
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$0 |
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e. Explore the feasibility of developing lower river wild index stocks (e.g., Warm Springs, John Day, and Klickitat rivers) to measure smolt-to-adult survival rates. |
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$0 |
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4. Begin a time series of smolt-to-adult survival rates for use in the PATH hypothesis testing process and in the regional long-term monitoring and evaluation program, which is under development. |
|
20% of Objective 1-5 total |
$159,753 |
|
5. Evaluate growth patterns of transported and in-river migrating smolts, and of upriver and downriver stocks. |
a. Collect and catalog scales from PIT tagged adults detected at Lower Granite Dam adult trap or at the upriver hatcheries. |
20% of Objective 1-5 total |
$159,753 |
|
|
b. Coordinate with the downriver hatcheries to collect and catalog scales from CWT groups that are representative of the production lots from which the PIT tagged fish were taken. |
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$0 |
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6. The interagency Comparative Survival Study Oversight Committee was established to design, plan, and oversee the conduct and analysis of the multi-agency Comparative Survival Study. |
a. Review of draft CSS annual report which is due to BPA within 90 days of project completion. |
35% of Objective 6 |
$16,229 |
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|
b. CSS study liaison with Agencies providing facilities and fish. |
4% of
Objective 6 |
$1,764 |
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|
c. Develop and refine study statistical design. |
46% of Objective 6 |
$21,168 |
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|
d. Respond to comments, questions, issues, and recommendations. |
15% of Objective 6 |
$7,056 |
|
7. Laptop computer for the Lower Granite Adult Trap |
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|
$3,000 |
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8. Desktop computer for Rapid River Hatchery |
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$4,000 |
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This information was not provided on the original proposals, but was generated during the review process.