List of fishes of Isle Royale National Park
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{{Use mdy dates|date=April 2025}}
This is a list of fishes that inhabit Isle Royale National Park.{{cite web |title= Fish List |url= http://www.nps.gov/archive/isro/NR_Profile_Internal/NR_pages/fish%20list.htm |publisher= National Park Service |accessdate=2009-02-17}} If the name is in bold it is a non-native species.
[[Acipenseridae]]
- Lake sturgeon, Acipenser fulvescens
[[Catostomidae]]
- Longnose sucker, Catostomus catostomus
- White sucker, Catostomus commersoni
- Shorthead redhorse, Moxostoma macrolepidotum
[[Centrarchidae]]
- Rock bass, Ambloplites rupestris
- Pumpkinseed, Lepomis gibbosus
- Smallmouth bass, Micropterus dolomieu
- Black crappie, Pomoxis nigromaculatus
[[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
- Brassy minnow, Hybognathus hankinsoni
- Allegheny pearl dace, Margariscus margarita
- Golden shiner, Notemigonus crysoleucas
- Emerald shiner, Notropis atherinoides
- Common shiner, Notropis cornutus
- Blackchin shiner, Notropis heterodon
- Blacknose shiner, Notropis heterolepis
- Northern blacknose shiner, Notropis heterolepis heterolepis
- Blacknose shiner, Notropis heterolepis regalis
- Spottail shiner, Notropis hudsonius
- Mimic shiner, Notropis volucellus
- Northern redbelly dace, Phoxinus eos
- Finescale dace, Phoxinus neogaeus
- Blacknose dace, Rhinichthys atratulus
- Longnose dace, Rhinichthys cataractae
- Eastern blacknose dace, Rhinichthys obtusus
- Creek chub, Semotilus atromaculatus
- Semotilus margarita
- Harvey lake pearl dace, Semotilus margarita koelzi
- Minnesota pearl dace, Semotilus margarita nachtriebi
- Fathead minnow, Pimephales promelas
- Harvey lake fathead minnow, Pimephales promelas harveyensis
- Fathead minnow, Pimephales promelas promelas
[[Esocidae]]
- Northern pike, Esox lucius
- Muskellunge, Esox masquinongy
[[Gasterosteidae]]
- Brook stickleback, Culaea inconstans
- Ninespine stickleback, Pungitius pungitius
[[Lotidae]]
- Burbot, Lota lota
[[Osmeridae]]
- Rainbow smelt, Osmerus mordax
[[Percidae]]
- Iowa darter, Etheostoma exile
- Johnny darter, Etheostoma nigrum
- Ruffe, Gymnocephalus cernuus
- Logperch, Percina caprodes
- Yellow perch, Perca flavescens
- Sauger, Sander canadense
- Walleye, Sander vitreum
[[Percopsidae]]
- Trout-perch, Percopsis omiscomaycus
[[Petromyzontidae]]
- Northern brook lamprey, Ichthyomyzon fossor
- Silver lamprey, Ichthyomyzon unicuspis
- Sea lamprey, Petromyzon marinus
[[Salmonidae]]
- Cisco, Coregonus artedi
- Lake herring, Coregonus artedi arcturus
- Lake herring, Coregonus artedi sargenti
- Siskiwit lake cisco, Coregonus bartlettii
- Lake whitefish, Coregonus clupeaformis
- Great lakes whitefish, Coregonus clupeaformis clupeaformis
- Lake desor whitefish, Coregonus clupeaformis dustini
- Inland lakes whitefish, Coregonus clupeaformis neohantoniensis
- Big-eyed chub, Coregonus kiyi
- Blackfin cisco, Coregonus nigripinnis
- Shortnose cisco, Coregonus reighardi
- Shortjaw cisco, Coregonus zenithicus
- Pink salmon, Oncorhynchus gorbuscha
- Coho salmon, Oncorhynchus kisutch
- Rainbow trout, Oncorhynchus mykiss
- Chinook salmon, Oncorhynchus tshawytscha
- Pygmy whitefish, Prosopium coulterii
- Round whitefish, Prosopium cylindraceum
- Salmo oxyrinchus
- Atlantic salmon, Salmo salar
- Brown trout, Salmo trutta
- Brook trout, Salvelinus fontinalis
- Lake trout, Salvelinus namaycush
- Lake trout, Salvelinus namaycush namaycush
- Siscowet, Salvelinus namaycush siscowet