Aquatic invasive species (AIS) pose an ongoing threat to Washington's environment and economy. Find out which species are considered invasive in Washington.
| Species | Category | Family | AIS classification |
|---|---|---|---|
| Common spadefoot toad (Pelobates fuscus) | Amphibians | Pelobatidae | Prohibited |
| Common Tree frog (Hyla arborea) | Amphibians | Hylidae | Prohibited |
| Couchis Spadefoot toad (Scaphiopus couchii) | Amphibians | Pelobatidae | Prohibited |
| Cretan Water frog (Rana cretensis) | Amphibians | Ranidae | Prohibited |
| Danube Crested newt (Triturus dobrogicus) | Amphibians | Salamandridae | Prohibited |
| Dark-Spotted frog (Rana nigromaculata) | Amphibians | Ranidae | Prohibited |
| Dunn's Oriental salamander (Hynobius dunni) | Amphibians | Hynobiidae | Prohibited |
| Dybovsky's frog (Rana dybowskii) | Amphibians | Ranidae | Prohibited |
| Dybowski's salamander (Salamandrella keyserlingii) | Amphibians | Hynobiidae | Prohibited |
| Eastern Lesser siren (Siren intermedia intermedia) | Amphibians | Sirenidae | Prohibited |
| Eastern newt (Notophthalmus viridescens) | Amphibians | Salamandridae | Prohibited |
| Eastern oyster drill (Urosalpinx cinerea) | Molluscs | Gastropoda | Unlisted |
| Eastern spadefoot toad (Pelobates syriacus) | Amphibians | Pelobatidae | Prohibited |
| Eastern spadefoot toad (Scaphiopus holbrookii) | Amphibians | Pelobatidae | Prohibited |
| Edible frog (Rana esculenta) | Amphibians | Ranidae | Prohibited |
| Emerald Green Tree frog (Hyla simplex) | Amphibians | Hylidae | Prohibited |
| Epirus water frog (Rana epeirotica) | Amphibians | Ranidae | Prohibited |
| Eritrea pond frog (Pelophylax demarche) | Amphibians | Ranidae | Prohibited |
| European Common frog (Rana aragonensis) | Amphibians | Ranidae | Prohibited |
| European green crab (Carcinus maenas) | Crustaceans | Portunidae | Prohibited |
| European Pond Turtle (Emys orbicularis) | Reptiles | Emydidae | Prohibited |
| Ezo Brown frog (Rana pirica) | Amphibians | Ranidae | Prohibited |
| Far Eastern frog (Rana chensinensis) | Amphibians | Ranidae | Prohibited |
| Fathead minnow (Pimephales promelas) | Fish | Cyprinidae | Prohibited |
| Fishhook waterflea (Cercopagis pengoi) | Crustaceans | Cercopagidae | Prohibited |