Fall Chinook Stock Composition II
Salmonid Research, Monitoring, and Evaluation (RM&E)
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| 2003-5-01 | | - | | 09/01/2003 | | 12/31/2005 | | 2003 | | Completed | | 05/01/2025 | | |
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Description
In order to determine run timing of stocks and races of Chinook salmon in the Columbia River Basin, tissue samples were collected bi-weekly starting March 26th and ending October 23rd of 2003. A sub-sample of tissues were selected for analysis to characterize the extremes and peak of each spring, summer, and fall run. Attempts to include sub-samples at early and late stages of each run class were thwarted by regulations that did not allow sampling prior to March 26th, or when water temperatures exceeded 25ºC (July 18 August 8). The sub-samples totaled 768 Chinook salmon that were genotyped at seven loci.
Seven microsatellite loci were analyzed for 2200 chinook salmon representing several sample locations. The same microsatellite data were collected for 768 unknown origin samples collected at Bonneville Dam from spring through fall. Samples collected at Bonneville Dam were analyzed to determine run timing of races, and to assign to stock of origin. The genetic baseline was improved and expanded with annual maintenance. The initial baseline consisted of 694 fall Chinook salmon at a limited number of genetic markers (seven microsatellite loci). With 2003 funding, the baseline was expanded to include 2058 samples of fall Chinook salmon at eight loci.
Project Benefit
Establish baseline genetic data for several major chinook stocks in the Columbia River Basin. Funding Details |
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| PCSRF | $116,886 |
| Report Total: | $116,886 |
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Worksites
CRITFC-Hagerman Lab
- Worksite Identifier: CRITFC-Hagerman Lab
- Start Date:
- End Date:
Area Description
No Area Description data was found for this worksite.
Location Information
- Basin: Upper Snake (170402)
- Subbasin: Upper Snake-Rock
- Watershed:
- Subwatershed:
- State: Idaho
- Recovery Domain:
- Latitude: 42.8164
- Longitude: -114.8975
ESU
- Lower Columbia River Chinook Salmon ESU
- Mid-Columbia River Spring-run Chinook Salmon ESU
- Lower Columbia River Coho Salmon ESU
- Columbia River Chum Salmon ESU
- Lower Columbia River Steelhead DPS
Map
Photos
Metrics
Metrics
- E.0
Salmonid Research, Monitoring, and Evaluation (RM&E)Y (Y/N)
- . . E.0.a
RM&E Funding 116,886.00
- . . E.0.b
| Complement habitat restoration project | |
| None |
- . . E.0.c
| Project identified in a plan or watershed assessment. | |
| none |
- . . E.0.d.1
Number of Cooperating Organizations 6
- . . E.0.d.2
| Name Of Cooperating Organizations. | |
| CRITFC and the four member tribes: CTBYN, CTUIR, NPT, and CTWSRO. NMFS Science Center (Mont Lake, WA) |
- . . E.0.e.1
Number of reports prepared 3
- . . E.0.e.2
| Name Of Report | |
| CRITFC, PCSRF Progress Reports |
- . . E.2
ResearchY (Y/N)
- . . . . E.2.a
Research Funding 116,886.00
- . . . . E.2.b.2
tissue sampling and analysisY (Y/N)
- . . . . . . E.2.b.2.a
| Key issues addressed by tissue sampling and analysis research | |
| The two key findings from this study have been 1) three distinct stocks of fall Chinook salmon in the Columbia River Basin, and 2) genetic discrimination of ocean and stream type Chinook salmon. These findings have assisted in identifying and managing population units and life history types of Chinook salmon. |
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