Status & Trends in the Spokane Subbasin (Intermountain Province) |
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Chinook |
| No abundance chart available for Chinook. |
| Biological Objective : |
Subbasin Plan Objective :
None
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| Current Status : |
Extirpated
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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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Pacific Lamprey |
| No abundance chart available for Pacific Lamprey. |
| Biological Objective : |
Subbasin Plan Objective :
None
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| Current Status : |
Extirpated
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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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Largemouth Bass |
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| Biological Objective : |
Subbasin Plan Objective :
None
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| 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
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| ESA Listing Status : |
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Kokanee |
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| Biological Objective : |
Subbasin Plan Objective :
None
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| 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
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| ESA Listing Status : |
Not Listed |
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Redband Trout |
| No abundance chart available for Redband Trout. |
| Biological Objective : |
Subbasin Plan Objective :
None
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| 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
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| ESA Listing Status : |
Species of Concern |
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Mountain Whitefish |
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| Biological Objective : |
Subbasin Plan Objective :
None
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| 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
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| ESA Listing Status : |
Not Listed |
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