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Rainbow Trout
Oncorhynchus mykiss
642 observations
Brook Trout
Salvelinus fontinalis
348 observations
Brown Trout
Salmo trutta
318 observations
Westslope Cutthroat Trout
Oncorhynchus lewisi
290 observations
Smallmouth Bass
Micropterus dolomieu
227 observations
Rocky Mountain Cutthroat Trout
Oncorhynchus virginalis
222 observations
European Carp
Cyprinus carpio
162 observations
Largemouth Bass
Micropterus nigricans
160 observations
Sockeye Salmon
Oncorhynchus nerka
157 observations
Bluegill
Lepomis macrochirus
138 observations
Utah Sucker
Catostomus ardens
138 observations
Redside Shiner
Richardsonius balteatus
136 observations
Speckled Dace
Rhinichthys osculus
127 observations
Northern Pikeminnow
Ptychocheilus oregonensis
107 observations
Bonneville Sculpin
Cottus semiscaber
102 observations
Yellow Perch
Perca flavescens
100 observations
Bull Trout
Salvelinus confluentus
100 observations
Mountain Whitefish
Prosopium williamsoni
96 observations
Chinook Salmon
Oncorhynchus tshawytscha
85 observations
Longnose Dace
Rhinichthys cataractae
85 observations
Paiute Sculpin
Cottus beldingii
60 observations
White Sturgeon
Sinosturio transmontanus
55 observations
Pumpkinseed
Lepomis gibbosus
53 observations
Largescale Sucker
Catostomus macrocheilus
47 observations
Bridgelip Sucker
Catostomus columbianus
42 observations
Mountain Sucker
Pantosteus platyrhynchus
41 observations
Utah Chub
Gila atraria
38 observations
Green Swordtail
Xiphophorus hellerii
37 observations
Goldfish
Carassius auratus
36 observations
Black Crappie
Pomoxis nigromaculatus
33 observations
Channel Catfish
Ictalurus punctatus
29 observations
Convict Cichlid
Amatitlania nigrofasciata
29 observations
Western Mosquitofish
Gambusia affinis
26 observations
Green Sunfish
Lepomis cyanellus
21 observations
Invasive
Golden Mbuna
Melanochromis auratus
17 observations
Chiselmouth
Gila alutacea
17 observations
Mozambique Tilapia
Oreochromis mossambicus
15 observations
Peamouth
Mylocheilus caurinus
14 observations
Coho Salmon
Oncorhynchus kisutch
13 observations
Tadpole Madtom
Noturus gyrinus
13 observations
Black Bullhead
Ameiurus melas
13 observations
Shorthead Sculpin
Cottus confusus
13 observations
Grass Carp
Ctenopharyngodon idella
13 observations
Northern Leatherside Chub
Lepidomeda copei
13 observations
Green Sucker
Pantosteus virescens
13 observations
Amur Carp
Cyprinus rubrofuscus
12 observations
Oriental Weatherfish
Misgurnus anguillicaudatus
11 observations
Northern Pike
Esox lucius
10 observations
Tench
Tinca tinca
10 observations
Brown Bullhead
Ameiurus nebulosus
9 observations
Frequently Asked Questions
- The 10 most common fish in Idaho are:
- Rainbow Trout (Oncorhynchus mykiss)
- Brook Trout (Salvelinus fontinalis)
- Brown Trout (Salmo trutta)
- Westslope Cutthroat Trout (Oncorhynchus lewisi)
- Smallmouth Bass (Micropterus dolomieu)
- Rocky Mountain Cutthroat Trout (Oncorhynchus virginalis)
- European Carp (Cyprinus carpio)
- Largemouth Bass (Micropterus nigricans)
- Sockeye Salmon (Oncorhynchus nerka)
- Bluegill (Lepomis macrochirus)
- The most observed fish in Idaho is Rainbow Trout (Oncorhynchus mykiss), with 642 recorded observations.
- Some of the most commonly observed invasive fish in Idaho include:
- Golden Mbuna (Melanochromis auratus)