Invasive Species

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Invasive Species:

You may view the available invasive species information below by clicking the icons.

You may sort the table by common, scientific name, or classification by clicking the corresponding table heading.

Chapter NR 40 Classification Key: P=Prohibited; R=Restricted

Classification Common Name Scientific Name Factsheet Map Photo
Gallery		 Lit.
Review		 SAG
Form
P (no common name) Ulva (Enteromorpha) spp.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Arctic char (2) Salvelinus alpinus      
P Asian clam Corbicula fluminea   Click to view Lit. Review for this species.  
P Asian Gypsy moth Lymantria dispar (Asian race)   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Asian lady beetle Harmonia axyridis Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Asian longhorned beetle Anoplophora glabripennis Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Atlantic salmon (2) Salmo salar      
P Bighead carp Hypophthalmichthys nobilis Click to view factsheet for this species.   Click to view Lit. Review for this species.  
R Bitterling (3) Rhodeus spp.      
P Black carp Mylopharyngodon piceus   Click to view Lit. Review for this species.  
P Bloody shrimp Hemimysis anomala   Click to view Lit. Review for this species.  
Brown gardensnail Cornu aspersum      
R Brown trout (2) Salmo trutta      
Butternut canker pathogen Sirococcus clavigignenti-juglandacearum   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Cell from hell; phantom dinoflagellate Pfiesteria piscicida   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Cellar glass-snail Oxychilus cellarius      
R Chinese hi-fin banded shark (3) Myxocyprinus asiaticus      
P Chinese mitten crabs Eriocheir sinensi   Click to view Lit. Review for this species.  
R Chinese mystery snail Cipangopaludina chinensis   Click to view Lit. Review for this species.  
R Chinook salmon (2) Oncorhynchus tshawytscha      
Chocolate arion (slug) Arion rufus      
R Coho salmon (2) Oncorhynchus kisutch      
R Common carp Cyprinus carpio Click to view factsheet for this species.   Click to view Lit. Review for this species.  
P Crazy worm Amynthas spp., Amynthus spp.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Cylindro (cyanobacteria) Cylindrospermopsis raciborskii   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Dark-bodied glass-snail Oxychilus draparnaudi      
P Didymo or rock snot Didymoshpenia geminata   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Dusky arion (slug) Arion subfuscus      
Earthworms Acanthodrilidae, Lumbricidae, Megascloedidae spp.      
P Eastern mosquitofish Gambusia holbrooki   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Emerald ash borer Agrilus planipennis Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
English sparrow, house sparrow Fringilla domestica   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Escargot (snail) Helix pomatia      
Eurasian collared dove Streptopelia decaocto   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Eurasian tree sparrow Passer montanus   Click to view Lit. Review for this species. Click to view SAG Form for this species.
European goldfinch Carduelis carduelis   Click to view Lit. Review for this species. Click to view SAG Form for this species.
European starling Sturnus vulgaris   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Faucet snail Bithynia tentaculata      
P Feral domestic swine Sus domestica Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Fishhook waterflea Cercopagis pengoi Click to view factsheet for this species.   Click to view Lit. Review for this species.  
Forest tent caterpillar Malacosoma disstria Click to view factsheet for this species.      
Garden arion (slug) Arion hortensis      
Giant gardenslug Limax maximus      
P Giant snakehead Channa micropeltes Click to view factsheet for this species.   Click to view Lit. Review for this species.  
P Golden alga Prymneisum parvum   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Goldfish *(3) Carassius auratus      
P Grass carp Ctenopharyngodon idella   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Gray fieldslug Deroceras reticulatum      
Gray partridge Perdix perdix   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Great tit Parus major   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Gypsy moth Lymantria dispar Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Hemlock wooly adelgid Adelges tsugae Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
House finch Carpodacus mexicanus   Click to view Lit. Review for this species. Click to view SAG Form for this species.
House mouse Mus musculus   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Ide (3) Leuciscus idus   Click to view Lit. Review for this species.  
Japanese mystery snail Cipangopaludina japonica   Click to view Lit. Review for this species.  
Killer algae Caulerpa taxifolia   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Koi carp *(3) Cyprinus carpio      
Meadow slug Deroceras leave      
P Monk, Quaker parakeet or parrot Myiopsitta monachus   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Mute swan Cygnus olor Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P New Zealand mudsnail Potamopyrgus antipodarum Click to view factsheet for this species.   Click to view Lit. Review for this species.  
Norway rat Rattus norvegicus   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Novel cyanobacterial epiphyte of order Stigonematales Stigonematales spp.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Oak wilt Ceratocystis fagacearum Click to view factsheet for this species.      
Orange-banded arion (slug) Arion Fasciatus      
Pigeon, rock dove Columba livia   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Pink salmon (2) Oncorhynchus gorbuscha      
P Quagga mussels Dreissena bugensis Click to view factsheet for this species.   Click to view Lit. Review for this species.  
R Rainbow smelt Osmerus mordax Click to view factsheet for this species.   Click to view Lit. Review for this species.  
R Rainbow trout (2) Oncorhynchus mykiss      
P Red shiner Cyprinella lutrensis   Click to view Lit. Review for this species.  
P Red swamp crayfish Procambarus clarkii Click to view factsheet for this species.      
R Redear sunfish (2) Lepomis microlophus      
R Red-eared slider with a carapace (top shell) length of less than 4 inches Trachemys scripta elegans   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Ring-necked pheasant Phasianus colchicus   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Round goby Neogobius melanostomus Click to view factsheet for this species.   Click to view Lit. Review for this species.  
P Rudd Scardinius erythrophthalmus   Click to view Lit. Review for this species.  
R Ruffe Gymnocephalus cernuus Click to view factsheet for this species.   Click to view Lit. Review for this species.  
P Russian boar & other wild swine Sus scrofa Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Rusty crayfish Orconectes rusticus Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Scale associated with beech bark disease Cryptococcus fagisuga Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Sea lamprey Petromyzon marinus Click to view factsheet for this species.   Click to view Lit. Review for this species.  
P Silver carp Hypophthalmichthys molitrix Click to view factsheet for this species.   Click to view Lit. Review for this species.  
Sirex wood wasp Sirex noctilio      
P Snakehead family Synbranchidea   Click to view Lit. Review for this species.  
Southern flatcoil (snail) Polygyracereolus cereolus      
P Spiny waterflea Bythotrephes cederstroemi Click to view factsheet for this species.   Click to view Lit. Review for this species.  
P Starry stonewort (alga) Nitellopsis obtusa   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R Sterlet (3) Acipenser ruthenus      
Stone, beech marten Martes foina   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Sudden oak death pathogen Phytophthora ramorum Click to view factsheet for this species.   Click to view Lit. Review for this species. Click to view SAG Form for this species.
P Tench Tinca tinca   Click to view Lit. Review for this species.  
R Three-spine stickleback Gasterosteus aculeatus   Click to view Lit. Review for this species.  
R Tiger trout (2) Salvelinus fontinalis x Salmo trutta      
R Tilapia Tilapia spp.      
R Tubenose Goby Proterorhinus marmoratus      
P Water flea Daphnia lumholtzi   Click to view Lit. Review for this species.  
R Weather loach (3) Misgurnus anguillicaudatus      
P Western mosquitofish Gambusia affinis   Click to view Lit. Review for this species. Click to view SAG Form for this species.
R White perch Morone americana Click to view factsheet for this species.   Click to view Lit. Review for this species.  
White pine blister rust Cronartium ribicola   Click to view Lit. Review for this species. Click to view SAG Form for this species.
White tailed jack rabbit Lepus townsendii   Click to view Lit. Review for this species. Click to view SAG Form for this species.
Winter moth Operophtera brumata      
Wolf/Dog hybrids Canis sp. Click to view factsheet for this species.      
Yellow gardenslug Limax flavus      
P Zander Sander lucioperca   Click to view Lit. Review for this species.  
R Zebra mussel Dreissena polymorpha Click to view factsheet for this species.   Click to view Lit. Review for this species.  

All other nonnative terrestrial and aquatic vertebrates (except fish and nonnative crayfish) are not regulated under NR40 but may be regulated under other rules or statutes.

  1. All nonnative fish and crayfish are prohibited unless they are not viable in Wisconsin or are on one of three lists:
    1. "Established nonnative fish species and established nonnative crayfish species".
    2. "Nonnative fish species in the aquaculture industry".
    3. "Nonnative viable fish species in the aquarium trade".
  2. The species on those three lists are restricted.
  3. Fish and crayfish are viable if eggs, fry, and adults are capable of surviving in water temperatures below 38C and are capable of surviving in fresh water.
Last Revised: November 9, 2009