Proposal title | Monitor Natural Escapement & Productivity of John Day Basin Spring Chinook |
Proposal ID | 199801600 |
Organization | Oregon Department of Fish and Wildlife (ODFW) |
Proposal contact person or principal investigator |
Name | Richard Carmichael |
Mailing address | 211 Inlow Hall, EOU, One University Blvd. La Grande, OR 97850 |
Phone / email | 5419623777 / rcarmich@eou.edu |
Manager authorizing this project | Richard W. Carmichael |
Review cycle | FY 2001 Ongoing |
Province / Subbasin | Columbia Plateau / John Day |
Short description | Monitor and assess natural escapement and productivity of John Day River Basin spring chinook salmon. This project is in direct response to recommendations and needs of PATH and is essential for monitoring restoration and enhancement efforts. |
Target species | |
Year | Accomplishment |
1998 |
Conducted spawning ground surveys and estimated total number of adult spring chinook salmon redds and spawners in three forks (North, Middle, Mainstem) of the John Day River Basin.
|
1998 |
Sampled over 300 carcasses of spawned spring chinook salmon to determine sex and age. Determined age composition and sex ratio of recovered carcasses and documented strays of returning spring chinook spawners. |
1999 |
Completed annual progress report. |
1999 |
Conducted spawning ground surveys and estimated total number of adult spring chinook salmon redds and spawners in three forks (North, Middle, Mainstem) of the John Day River Basin. Determined age composition and sex ratio of recovered carcasses. |
2000 |
Initiated PIT tagging of emigrating smolts. |
Objective | Task | Duration in FYs | Estimated 2001 cost | Subcontractor |
1. Estimate total number of spring chinook spawners returning to the John Day River subbasin. |
a. Conduct extensive spawning ground counts in addition to annual index surveys. |
10 |
$20,971 |
|
|
b. Conduct surveys throughout the range of available habitat to determine spawner distribution. |
10 |
$10,486 |
|
|
c. Conduct multiple surveys which temporally bracket the historic index counting time. |
10 |
$6,886 |
|
2. Determine sex ratio and age structure of returning spring chinook salmon spawners as well as proportion and origin of hatchery strays. |
a. Sex, identify any hatchery origin marks, and collect scales from carcasses recovered during surveys. |
10 |
$2,649 |
|
|
b. Analyze scales to determine age structure. Develop length-age relationships to classify fish that have unreadable scales and calculate sex ratios |
10 |
$7,152 |
|
|
c. Estimate proportion and origin of hatchery strays. |
10 |
$795 |
|
3. Determine adequacy of historic spring chinook index areas/counts for estimating spawner abundance. |
a. Determine proportion of spawning that occurs outside index areas in each major spawning stream and proportion of spawning that occurs after index surveys are conducted.. |
10 |
$2,189 |
|
|
b. Analyze spatial and temporal variability to assess adequacy of index counts to estimate escapement. |
10 |
$6,567 |
|
4. Estimate smolt-to-adult survival rates of spring chinook salmon. |
a. Collect emigrating spring chinook salmon smolts via seining and irrigation bypass traps and insert PIT tags into approximately 3,000 smolts.. |
5 |
$86,185 |
|
|
b. Recover and/or detect PIT tags from returning spawners and spawner carcasses at spawning grounds. |
5 |
$12,218 |
|
|
c. Record PIT tag detection of returning adults at Columbia River dams and estimate smolt-to-adult survival rates based on PIT tag returns.. |
5 |
$959 |
|
This information was not provided on the original proposals, but was generated during the review process.