Status & Trends in the Tucannon Subbasin (Columbia Plateau Province) |
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Fall Chinook |
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| Biological Objective : |
Subbasin Plan Objective :
14,300 Natural adults314
2,000 adults315
Recovery Plan Criteria :
3,000 natural adults (entire population) 286
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| Current Status : |
Adult Counts
2011: 2,044 adults81
Redd Counts (mixed)
2011: 302 redds (mixed)196
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| ESA Listing Status : |
Threatened |
| Evolutionary Significant Unit (ESU) : |
Snake River |
| Major Population Group (MPG) : |
Snake River |
| Population : |
Snake River |
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Spring Chinook |
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| Biological Objective : |
Subbasin Plan Objective :
2,000 natural adults104
3,000 total adults315,314
Recovery Plan Criteria :
750 natural adults 286
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| Current Status : |
NOSA Estimate
2017: 49 spawners 474
Redd Counts (mixed)
2014: 124 redds 82
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| ESA Listing Status : |
Threatened |
| Evolutionary Significant Unit (ESU) : |
Snake River |
| Major Population Group (MPG) : |
Lower Snake River |
| Population : |
Tucannon |
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Summer Steelhead |
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| Biological Objective : |
Subbasin Plan Objective :
948 natural-origin adults315
600 adults (existing habitat conditions) and 2,200-3,400 (future) adult escapement315
2,200 adults314
3,400 adults315
Recovery Plan Criteria :
1,000 natural spawners286
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| Current Status : |
Adult Escapement (natural)
2007: 137 spawners (natural)149
Juvenile Outmigrants
2017: 20,391 juvenile474
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| ESA Listing Status : |
Threatened |
| Evolutionary Significant Unit (ESU) : |
Snake River |
| Major Population Group (MPG) : |
Lower Snake River |
| Population : |
Tucannon |
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Bull Trout |
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| Biological Objective : |
Draft Recovery Plan Criteria :
1,000 adults512
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| Current Status : |
Redd Counts
2011: 143 redds 83
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| ESA Listing Status : |
Threatened |
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