This is a list of Fish that inhabit the Isle Royale National Park. If the name is in Bold it is non-native species.

Acipenseridae

Lake sturgeon, Acipenser fulvescens

Catostomidae

Longnose sucker, Catostomus catostomus

White sucker, Catostomus commersoni

Shorthead redhorse, Moxostoma macrolepidotum

Centrarchidae

Black crappie, Pomoxis nigromaculatus

Pumpkinseed, Lepomis gibbosus

Rock bass, Ambloplites rupestris

Smallmouth bass, Micropterus dolomieu

Clupeidae

Alewife, Alosa pseudoharengus

Cottidae

Fourhorn sculpin, Myoxocephalus quadricornis

Mottled sculpin, Cottus bairdii

Slimy sculpin, Cottus cognatus

Spoonhead sculpin, Cottus ricei

Cyprinidae

Lake chub, Couesius plumbeus

Creek chub, Semotilus atromaculatus

Longnose dace, Rhinichthys cataractae

Northern redbelly dace, Phoxinus eos

Finescale dace, Phoxinus neogaeus

Emerald shiner, Notropis atherinoides

Common shiner, Notropis cornutus

Blackchin shiner, Notropis heterodon

Blacknose shiner, Notropis heterolepis

Blacknose shiner, Notropis heterolepis regalis

Northern blacknose shiner, Notropis heterolepis heterolepis

Spottail shiner, Notropis hudsonius

Mimic shiner, Notropis volucellus

Golden shiner, Notemigonus crysoleucas

Eastern blacknose dace, Rhinichthys obtusus

Harvey lake pearl dace, Semotilus margarita koelzi

Minnesota pearl dace, Semotilus margarita nachtriebi

Blacknose dace, Rhinichthys atratulus

Harvey lake fathead minnow, Pimephales promelas harveyensis

Fathead minnow, Pimephales promelas promelas

Brassy minnow, Hybognathus hankinsoni

Allegheny pearl dace, Margariscus margarita

Esocidae

Northern pike, Esox lucius

Muskellunge, Esox masquinongy

Gasterosteidae

Ninespine stickleback, Pungitius pungitius

Brook stickleback, Culaea inconstans

Lotidae

Burbot, Lota lota

Osmeridae

Rainbow smelt, Osmerus mordax

Percidae

Logperch, Percina caprodes

Yellow perch, Perca flavescens

Ruffe, Gymnocephalus cernuus

Sauger, Sander canadense

Walleye, Sander vitreum

Iowa darter, Etheostoma exile

Johnny darter, Etheostoma nigrum

Percopsidae

Trout-perch, Percopsis omiscomaycus

Petromyzontidae

Sea lamprey, Petromyzon marinus

Northern brook lamprey, Ichthyomyzon fossor

Silver lamprey, Ichthyomyzon unicuspis

Salmonidae

Brook trout, Salvelinus fontinalis

Lake trout, Salvelinus namaycush namaycush

Siscowet, Salvelinus namaycush siscowet

Salmo oxyrinchus

Atlantic salmon, Salmo salar

Brown trout, Salmo trutta

Pygmy whitefish, Prosopium coulterii

Round whitefish, Prosopium cylindraceum

Pink salmon, Oncorhynchus gorbuscha

Coho salmon, Oncorhynchus kisutch

Rainbow trout, Oncorhynchus mykiss

Chinook salmon, Oncorhynchus tshawytscha

Cisco, Coregonus artedi

Lake herring, Coregonus artedi arcturus

Lake herring, Coregonus artedi sargenti

Siskiwit lake cisco, Coregonus bartlettii

Great lakes whitefish, Coregonus clupeaformis clupeaformis

Inland lakes whitefish, Coregonus clupeaformis neohantoniensis

Lake desor whitefish, Coregonus clupeaformis dustini

Big-eyed chub, Coregonus kiyi

Blackfin cisco, Coregonus nigripinnis

Shortnose cisco, Coregonus reighardi

Shortjaw cisco, Coregonus zenithicus

References

Fish of Isle Royale National Park

Isle Royale

.Isle Royale

.Isle Royale

Fish

List of fish of Isle Royale National Park