Status & Trends by Region


Status & Trends in the Tucannon Subbasin (Columbia Plateau Province)

Fall Chinook

Biological Objective : Subbasin Plan Objective :
14,300 Natural adults314
2,000 adults315
Recovery Plan Criteria :
3,000 natural adults (entire population) 286
 
Current Status : Adult Counts
2011: 2,044 adults81
Redd Counts (mixed)
2011: 302 redds (mixed)196

ESA Listing Status :    Threatened
Evolutionary Significant Unit (ESU) : Snake River 
Major Population Group (MPG) : Snake River 
Population : Snake River 
 

Spring Chinook

Biological Objective : Subbasin Plan Objective :
2,000 natural adults104
3,000 total adults315,314 Recovery Plan Criteria :
750 natural adults 286
 
Current Status : NOSA Estimate
2017: 49 spawners 474
Redd Counts (mixed)
2014: 124 redds 82

ESA Listing Status :    Threatened
Evolutionary Significant Unit (ESU) : Snake River 
Major Population Group (MPG) : Lower Snake River 
Population : Tucannon 
 

Summer Steelhead

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
 
Current Status : Adult Escapement (natural)
2007: 137 spawners (natural)149
Juvenile Outmigrants
2017: 20,391 juvenile474

ESA Listing Status :    Threatened
Evolutionary Significant Unit (ESU) : Snake River 
Major Population Group (MPG) : Lower Snake River 
Population : Tucannon 
 

Bull Trout

Biological Objective : Draft Recovery Plan Criteria :
1,000 adults512
 
Current Status : Redd Counts
2011: 143 redds 83

ESA Listing Status :    Threatened