Status & Trends by Region


Status & Trends in the Spokane Subbasin (Intermountain Province)

Chinook

No abundance chart available for Chinook.
Biological Objective : Subbasin Plan Objective :
None
 
Current Status : Extirpated
ESA Listing Status :    Not Listed
Evolutionary Significant Unit (ESU) :  
Major Population Group (MPG) :  
Population :  
 

Pacific Lamprey

No abundance chart available for Pacific Lamprey.
Biological Objective : Subbasin Plan Objective :
None
 
Current Status : Extirpated
ESA Listing Status :    Not Listed
Evolutionary Significant Unit (ESU) :  
Major Population Group (MPG) :  
Population :  
 

Largemouth Bass

Biological Objective : Subbasin Plan Objective :
None
 
Current Status : Nine Mile Reservoir
Relative Abundance = 0.9% (2002) 466
CPUE = 3.0 (±3.1) fish/hour (2002) 466
Spokane Arm (Rest of Lake Roosevelt Included)
CPUE: (FWIN)
2016:
0.00 (0 fish) 483


ESA Listing Status :   
 

Kokanee

Biological Objective : Subbasin Plan Objective :
None
 
Current Status : Spokane Arm (Rest of Lake Roosevelt Included)
Harvest
2016: 10,440 fish (wild) 483
Spokane Arm (Rest of Lake Roosevelt Included)
CPUE (FWIN Survey)
2016:
0.01 (2 fish)483

ESA Listing Status :    Not Listed
 

Redband Trout

No abundance chart available for Redband Trout.
Biological Objective : Subbasin Plan Objective :
None
 
Current Status : Upper Spokane River
1,149 fish > 200 mm (2007) 468

Middle Spokane River
CPUE (eletrofishing) = 15.8 (+8.5) fish/1.85 hours, 0.1 (+0.2) (gill netting) (2007) 469

Abundance (>10 inches)
Lower Spokane River (Peaceful Valley to T.J. Meenach Bridge)
2013: 1,266 fish 276
Upper Spokane River (Washingtn-Idaho Stateline to Donkey Island)
2009: 1,368 fish277

ESA Listing Status :    Species of Concern
 

Mountain Whitefish

Biological Objective : Subbasin Plan Objective :
None
 
Current Status : Middle Spokane River
CPUE (eletrofishing) = 9.8 (+6.4) fish/1.85 hours, 0.0 (gill netting) (2007)469

Free-flowing Spokane River
Relative Abundance = 11.7% (2002)470
CPUE = 30.9 (+ 12.0) fish/hour (2002)470

Nine Mile Reservoir
Relative Abundance = 0.9% (2002)470
CPUE = 2.7 (+1.6) fish/hour (electrofishing), 0.1 (+ 0.2) fish/hour (littoral gillnetting), and 0.2 (+ 0.2) fish/hour (pelagic gillnetting) (2002) 470

Spokane Arm (Rest of Lake Roosevelt Included)
CPUE: (FWIN)
2016:
< 0.01 (1 fish)483

ESA Listing Status :    Not Listed