List of fishes of Idaho facts for kids
Idaho is a state with many beautiful rivers, lakes, and streams. These freshwaters are home to a wide variety of fish. Some of these fish have always lived here, while others were brought in from different places. Fish that were brought in are called introduced species, and you'll see them marked with an asterisk (*) in this list. You'll also learn about some anadromous fish. These are fish that live in the ocean but swim up rivers to lay their eggs.
Contents
- Fish of Idaho's Freshwaters
- Ancient Fish: Lampreys and Sturgeons
- Herring Family: Shad
- Suckers and Minnows: The Cypriniformes Group
- Livebearers: Guppies and Mosquitofish
- Pikes and Muskellunge
- Perch-like Fish: Sunfish, Bass, and Perch
- Trout-Perch: Sand Roller
- Cod Family: Burbot
- Salmon and Trout: The Salmoniformes Group
- Sculpins: Bottom Dwellers
- Catfish: Whiskered Wonders
Fish of Idaho's Freshwaters
Ancient Fish: Lampreys and Sturgeons
Some fish families have been around for a very long time!
Lampreys
Lampreys are unique fish that don't have jaws. They have a round, sucking mouth.
- Pacific lamprey (Entosphenus tridentatus)
Sturgeons
Sturgeons are large, ancient fish with bony plates on their bodies instead of scales.
- White sturgeon (Acipenser transmontanus)
Herring Family: Shad
This family includes fish often found in oceans, but some, like the shad, come into freshwater.
- American shad* (Alosa sapidissima) - This fish was introduced to Idaho.
Suckers and Minnows: The Cypriniformes Group
This is a very large group of fish, including many common species found in Idaho's waters.
Suckers
Suckers are fish known for their thick, fleshy lips that they use to suck up food from the bottom of rivers and lakes.
- Longnose sucker (Catostomus catostomus)
- Bridgelip sucker (Catostomus columbianus)
- Largescale sucker (Catostomus macrocheilus)
- Mountain sucker (Catostomus platyrhynchus)
- Utah sucker (Catostomus ardens)
- Bluehead sucker (Catostomus discobolous)
Minnows and Carps
This group includes many small fish, but also some larger ones like carp. Many of these are introduced species.
- Chiselmouth (Acrocheilus alutaceus)
- Goldfish* (Carassius auratus) - Yes, the same kind you might have as a pet!
- Lake chub (Couseius plumbeus)
- Grass carp* (Ctenopharyngodon idella)
- Common carp* (Cyprinus carpio)
- Utah chub (Gila atraria)
- Tui chub* (Gila bicolor)
- Leatherside chub (Lepidomeda copei)
- Peamouth (Mylocheilus caurinus)
- Spottail shiner* (Notropis hudsonius)
- Fathead minnow* (Pimephales promelas)
- Northern pikeminnow (Ptychocheilus oregonensis)
- Longnose dace (Rhinichthys cataractae)
- Leopard dace (Rhinichthys falcatus)
- Umatilla dace (Rhinichthys umatilla)
- Speckled dace (Rhinichthys osculus)
- Redside shiner (Richardsonius balteatus)
- Tench* (Tinca tinca)
Livebearers: Guppies and Mosquitofish
Fish in this family are known for giving birth to live young, instead of laying eggs.
- Mosquitofish* (Gambusia affinis) - Often used to control mosquito populations.
- Guppy* (Poecilia reticulata)
- Green swordtail* (Xiphophorus helleri)
- Platy* (Xiphophorus ssp.)
Pikes and Muskellunge
These are predatory fish, meaning they hunt and eat other fish.
- Northern pike* (Esox lucius)
- Tiger muskellunge* (E. lucius x E. masquinongy) hybrid - This is a mix of two different fish species.
Perch-like Fish: Sunfish, Bass, and Perch
This large group includes many popular sport fish.
Sunfish and Bass
These fish are known for their round bodies and often bright colors. Bass are a type of sunfish.
- Green sunfish* (Lepomis cyanellus)
- Bluegill* (Lepomis macrochirus)
- Pumpkinseed* (Lepomis gibbosus)
- Warmouth* (Lepomis gulosus)
- Smallmouth bass* (Micropterus dolomieui)
- Largemouth bass* (Micropterus salmoides)
- White crappie* (Pomoxis annularis)
- Black crappie* (Pomoxis nigromaculatus)
Cichlids
Cichlids are a diverse group of fish, often found in tropical waters. Some have been introduced to Idaho.
- Mozambique tilapia* (Tilapia mozambica)
- Redbelly tilapia* (Tilapia zilli)
- Convict cichlid* (Cichlasoma nigrofasciatum)
Perch and Walleye
These fish are popular for fishing and eating.
- Yellow perch* (Perca flavescens)
- Walleye* (Sander vitreus)
- Sauger* (Sander canadensis)
Trout-Perch: Sand Roller
This small family includes fish that look a bit like both trout and perch.
- Sand roller (Percopsis transmontana)
Cod Family: Burbot
The burbot is the only freshwater fish in the cod family.
- Burbot (Lota lota)
Salmon and Trout: The Salmoniformes Group
This is a very important group of fish in Idaho, known for their beauty and as sport fish.
Whitefish
Whitefish are slender fish, often found in cold, clear waters.
- Lake whitefish* (Coregonus clupeaformis)
- Bear Lake whitefish (Prosopium abyssicola)
- Pygmy whitefish (Prosopium coulteri)
- Bonneville cisco (Prosopium gemmiferum)
- Bonneville whitefish (Prosopium spilonotus)
- Mountain whitefish (Prosopium williamsoni)
Trout and Salmon
Idaho is famous for its trout and salmon. Many salmon species are anadromous.
- Cutthroat trout (Oncorhynchus clarki)
- Yellowstone cutthroat trout (Oncorhynchus clarki bouvieri)
- Westslope cutthroat trout (Oncorhynchus clarki lewisi)
- Bonneville cutthroat trout/Bear Lake cutthroat trout (Oncorhynchus clarki utahi)
- Snake River fine-spotted cutthroat trout (Oncorhynchus clarki behnkei)
- Lahontan cutthroat trout (Oncorhynchus clarki henshawi)
- Coho salmon* (Oncorhynchus kisutch)
- Chinook salmon (Oncorhynchus tshawytscha)
- Sockeye salmon/Kokanee salmon (Oncorhynchus nerka) - Kokanee are the freshwater form of sockeye salmon.
- Rainbow trout (Oncorhynchus mykiss)
- Columbia River redband trout (Oncorhynchus mykiss gairdneri) - Anadromous forms are known as Steelhead.
- Golden trout* (Oncorhynchus mykiss aguabonita)
- Atlantic salmon* (Salmo salar)
- Brown trout* (Salmo trutta)
- Blueback trout* (Salvelinus alpinus oquassa)
- Bull trout (Salvelinus confluentus)
- Brook trout* (Salvelinus fontinalis)
- Lake trout* (Salvelinus namaycush)
- Arctic grayling* (Thymallus arcticus)
Sculpins: Bottom Dwellers
Sculpins are small, bottom-dwelling fish with large heads and spiny fins.
- Mottled sculpin (Cottus bairdi)
- Paiute sculpin (Cottus beldingi)
- Slimy sculpin (Cottus cognatus)
- Shorthead sculpin (Cottus confusus)
- Bear Lake sculpin (Cottus extensus)
- Shoshone sculpin (Cottus greenei)
- Wood River sculpin (Cottus leipomus)
- Torrent sculpin (Cottus rhotheus)
- Cedar sculpin (Cottus schitsuumsh)
Catfish: Whiskered Wonders
Catfish are easily recognized by the whisker-like barbels around their mouths, which they use to find food.
- Black bullhead* (Ameiurus melas)
- Yellow bullhead* (Ameiurus natalis)
- Brown bullhead* (Ameiurus nebulosus)
- Blue catfish* (Ictalurus furcatus)
- Channel catfish* (Ictalurus punctatus)
- Tadpole madtom* (Noturus gyrinus)
- Flathead catfish* (Pylodictis olivaris)