| Species | Name | Family | Habitat | Length (cm) | Trophic Level | Status |
|---|---|---|---|---|---|---|
| Acipenser transmontanus | White sturgeon | Acipenseridae | demersal | 610.0 TL | 3.3 | native |
| Acrocheilus alutaceus | Chiselmouth | Leuciscidae | demersal | 30.0 TL | 2.1 | native |
| Ameiurus natalis | Yellow bullhead | Ictaluridae | demersal | 60.0 TL | 3.3 | introduced |
| Ameiurus nebulosus | Brown bullhead | Ictaluridae | demersal | 55.0 TL | 3.7 | introduced |
| Catostomus catostomus | Longnose sucker | Catostomidae | demersal | 64.0 TL | 2.5 | native |
| Catostomus columbianus | Bridgelip sucker | Catostomidae | demersal | 30.0 TL | 2.8 | native |
| Catostomus macrocheilus | Largescale sucker | Catostomidae | demersal | 61.0 TL | 3.1 | native |
| Catostomus platyrhynchus | Mountain sucker | Catostomidae | demersal | 25.0 TL | 2.3 | native |
| Clupea harengus | Atlantic herring | Clupeidae | benthopelagic | 45.0 SL | 3.4 | misidentification |
| Cottus aleuticus | Coastrange sculpin | Cottidae | demersal | 17.0 TL | 3.2 | native |
| Cottus asper | Prickly sculpin | Cottidae | demersal | 30.0 TL | 3.4 | native |
| Cottus rhotheus | Torrent sculpin | Cottidae | demersal | 15.5 TL | 3.4 | native |
| Cymatogaster aggregata | Shiner perch | Embiotocidae | demersal | 20.3 TL | 3.0 | native |
| Cyprinus carpio | Common carp | Cyprinidae | benthopelagic | 120.0 TL | 3.4 | introduced |
| Gasterosteus aculeatus | Three-spined stickleback | Gasterosteidae | benthopelagic | 11.0 TL | 3.3 | native |
| Hybognathus hankinsoni | Brassy minnow | Leuciscidae | demersal | 9.7 TL | 3.1 | native |
| Leptocottus armatus | Pacific staghorn sculpin | Cottidae | demersal | 46.0 TL | 3.7 | native |
| Mylocheilus caurinus | Peamouth | Leuciscidae | demersal | 36.0 TL | 3.5 | native |
| Oncorhynchus aguabonita | Golden trout | Salmonidae | demersal | 71.0 TL | 3.3 | introduced |
| Oncorhynchus clarkii | Cutthroat trout | Salmonidae | demersal | 99.0 TL | 4.0 | native |
| Oncorhynchus gorbuscha | Pink salmon | Salmonidae | demersal | 76.0 TL | 4.5 | native |
| Oncorhynchus keta | Chum salmon | Salmonidae | benthopelagic | 100.0 FL | 3.7 | native |
| Oncorhynchus kisutch | Coho salmon | Salmonidae | pelagic | 108.0 TL | 4.2 | native |
| Oncorhynchus mykiss | Rainbow trout | Salmonidae | benthopelagic | 122.0 TL | 4.1 | native |
| Oncorhynchus nerka | Sockeye salmon | Salmonidae | pelagic-oceanic | 84.0 TL | 3.5 | native |
| Oncorhynchus tshawytscha | Chinook salmon | Salmonidae | benthopelagic | 150.0 TL | 4.4 | native |
| Parophrys vetulus | English sole | Pleuronectidae | demersal | 57.0 TL | 3.4 | native |
| Platichthys stellatus | Starry flounder | Pleuronectidae | demersal | 91.0 TL | 3.6 | native |
| Pomoxis nigromaculatus | Black crappie | Centrarchidae | benthopelagic | 49.0 TL | 3.8 | native |
| Prosopium williamsoni | Mountain whitefish | Salmonidae | benthopelagic | 70.0 TL | 3.7 | native |
| Ptychocheilus oregonensis | Northern pikeminnow | Leuciscidae | benthopelagic | 63.0 TL | 4.2 | native |
| Rhinichthys cataractae | Longnose dace | Leuciscidae | demersal | 22.5 TL | 3.2 | native |
| Rhinichthys falcatus | Leopard dace | Leuciscidae | demersal | 12.0 TL | 2.7 | native |
| Richardsonius balteatus | Redside shiner | Leuciscidae | demersal | 18.0 TL | 3.4 | native |
| Salvelinus malma | Dolly varden | Salmonidae | benthopelagic | 127.0 TL | 4.4 | native |
| Spirinchus thaleichthys | Longfin smelt | Osmeridae | benthopelagic | 20.0 TL | 3.2 | native |
| Thaleichthys pacificus | Eulachon | Osmeridae | pelagic-neritic | 34.0 TL | 3.3 | native |