Status & Trends in the Umatilla Subbasin (Columbia Plateau Province) |
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Fall Chinook |
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| Biological Objective : |
Subbasin Plan Objective :
4,192 natural adults319
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| Current Status : |
Adult Escapement (Threemile Falls Dam)
2017: 680 adults85
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| ESA Listing Status : |
Not Listed |
| Evolutionary Significant Unit (ESU) : |
Middle Columbia |
| Major Population Group (MPG) : |
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| Population : |
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Spring Chinook |
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| Biological Objective : |
Subbasin Plan Objective :
1,702 natural adults319
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| Current Status : |
Adult Counts (hatchery)
2017: 3,841 adults (hatchery)85
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| ESA Listing Status : |
Not Listed |
| Evolutionary Significant Unit (ESU) : |
Middle Columbia |
| Major Population Group (MPG) : |
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| Population : |
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Coho |
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| Biological Objective : |
Subbasin Plan Objective :
1,568 natural adults319
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| Current Status : |
Adult Counts (Threemile Falls Dam)
2017: 3,045 adults (hatchery)85
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| ESA Listing Status : |
Not Listed |
| Evolutionary Significant Unit (ESU) : |
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| Major Population Group (MPG) : |
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| Population : |
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Summer Steelhead |
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| Biological Objective : |
Subbasin Plan Objective :
3,610 natural adults319
Recovery Plan Criteria :
1,500 natural adults16
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| Current Status : |
NOSA Estimate
2016: 3,599 spawners474
Redd Counts (mixed)
2017: 40 redds (mixed)224
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| ESA Listing Status : |
Threatened |
| Evolutionary Significant Unit (ESU) : |
Middle Columbia |
| Major Population Group (MPG) : |
Umatilla/Walla Walla Rivers |
| Population : |
Umatilla |
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Bull Trout |
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| Biological Objective : |
Draft Recovery Plan Criteria :
500-5,000 adults distributed among three local populations321
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| Current Status : |
Redd Counts
2010: 13 redds141
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| ESA Listing Status : |
Threatened |
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