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 |
|---|---|---|---|
| Florida Softshell turtle (Apalone ferox) | Reptiles | Trionychidae | Prohibited |
| Futsing Hsien frog (Rana fukienensis) | Amphibians | Ranidae | Prohibited |
| Gammarella berringar (Gammarella berringar) | Crustaceans | Melitidae | Regulated |
| 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 |
| Golden star tunicate (Botryllus schlosseri) | Tunicate/Sea-squirt | Botryllidae | Unlisted |
| 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 |
| Great Crested newt (Triturus cristatus) | Amphibians | Salamandridae | Prohibited |
| Greater siren (Siren lacertina) | Amphibians | Sirenidae | Prohibited |
| Green Snapping shrimp (Alpheus euphrosyne) | Crustaceans | Alpheidae | Regulated |
| Gulf Coast Waterdog (Necturus beyeri) | Amphibians | Proteidae | Prohibited |
| Hallowell's Tree frog (Hyla hallowellii) | Amphibians | Hylidae | Prohibited |
| Hellbender (Cryptobranchus alleganiensis) | Amphibians | Cryptobranchidae | Prohibited |
| Hong Kong Warty newt (Paramesotriton hongkongensis) | Amphibians | Salamandridae | Prohibited |
| Huanren frog (Rana huanrenensis) | Amphibians | Ranidae | Prohibited |
| Hubei frog (Rana hubeiensis) | Amphibians | Ranidae | Prohibited |
| Hurter's Spadefoot toad (Scaphiopus hurterii) | Amphibians | Pelobatidae | Prohibited |
| Hurter's Spadefoot toad (Spea hurterii (Scaphiopus hurteri above)) | Amphibians | Pelobatidae | Prohibited |
| Hynobiidae (Hynobius kimurae) | Amphibians | Hynobiidae | Prohibited |
| Iberian frog (Rana iberica) | Amphibians | Ranidae | Prohibited |