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 |
|---|---|---|---|
| Eastern Lesser siren (Siren intermedia intermedia) | Amphibians | Sirenidae | Prohibited |
| Eastern newt (Notophthalmus viridescens) | Amphibians | Salamandridae | Prohibited |
| 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 |
| Florida Softshell turtle (Apalone ferox) | Reptiles | Trionychidae | Prohibited |
| Futsing Hsien frog (Rana fukienensis) | Amphibians | Ranidae | Prohibited |
| Giant Tasmanian crayfish (Astacopis gouldi) | Crustaceans | Parastacidae | Prohibited |
| Gippsland crayfish (Euastacus kershawi) | Crustaceans | Parastacidae | Prohibited |
| Glenelg crayfish (Euastacus bispinosis) | Crustaceans | Parastacidae | Prohibited |
| Golden Orfe (Leuciscus idus - Golden) | Fish | Cyprinidae | Prohibited |
| Gorgan salamander (Batrachuperus gorganensis) | Amphibians | Hynobiidae | Prohibited |
| Graecian frog (Rana graeca) | Amphibians | Ranidae | Prohibited |
| Graf's hybrid frog (Pelophylax kl. grafi) | Amphibians | Ranidae | Prohibited |
| Grass carp (Ctenopharyngodon idella) | Fish | Cyprinidae | Prohibited |