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 |
|---|---|---|---|
| African clawed frog (Xenopus laevis) | Amphibians | Pipidae | Prohibited |
| Agile frog (Rana dalmatina) | Amphibians | Ranidae | Prohibited |
| Albanian Pool frog (Rana shqiperica) | Amphibians | Ranidae | Prohibited |
| Alewife (Alosa pseudoharengus) | Fish | Clupeidae | Regulated |
| Alligator Gar (Atractosteus spatula) | Fish | Lepisosteidae | Prohibited |
| Alligator snapping turtle (Macrochelys temminckii) | Reptiles | Chelydridae | Prohibited |
| American bullfrog (Rana [Lithobates] catesbeiana) | Amphibians | Ranidae | Prohibited |
| Anderson's Salamander (Echinotriton andersoni) | Amphibians | Salamandridae | Prohibited |
| Annam Pond turtle (Mauremys annamensis) | Reptiles | Emydidae | Prohibited |
| Aomori salamander (Hynobius lichenatus) | Amphibians | Hynobiidae | Prohibited |
| Asian Yellow Pond turtle (Mauremys mutica) | Reptiles | Emydidae | Prohibited |
| Assam Tree frog (Hyla annectans) | Amphibians | Hylidae | Prohibited |
| Atlantic salmon (Salmo salar) | Fish | Salmonidae | Regulated |
| Australian Porcelain crab (Petrocheles australiensis) | Crustaceans | Porcellanidae | Regulated |
| Banded newt (Triturus vittatus ophryticus) | Amphibians | Salamandridae | Prohibited |
| Bighead carp (Hypophthalmichthys nobilis) | Fish | Cyprinidae | Prohibited |
| Black carp (Mylopharyngodon piceus) | Fish | Cyprinidae | Prohibited |
| Black Chin tilapia (Sarotherodon melanotheron) | Fish | Cichlidae | Regulated |
| Black piranha (Serrasalmus rhombeus) | Fish | Characidae | Prohibited |
| Black Spotted newt (Notophthalmus meridionalis) | Amphibians | Salamandridae | Prohibited |
| Blackskin catfish (Clarias meladerma) | Fish | Clariidae | Prohibited |
| Blue-spotted salamander (Ambystoma laterale) | Amphibians | Ambystomatidae | Prohibited |
| Bog turtle (Clemmys muhlenbergii) | Reptiles | Emydidae | Prohibited |
| Bosca's newt (Triturus boscai) | Amphibians | Salamandridae | Prohibited |
| Boulenger's Oriental salamander (Hynobius boulengeri) | Amphibians | Hynobiidae | Prohibited |