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 |
|---|---|---|---|
| Japanese Tree frog (Hyla japonica) | Amphibians | Hylidae | Prohibited |
| Japanese Tree toad (Hyla ussuriensis) | Amphibians | Hylidae | Prohibited |
| Karpathos Water frog (Rana cerigensis) | Amphibians | Ranidae | Prohibited |
| Kokarit frog (Rana lateralis) | Amphibians | Ranidae | Prohibited |
| Korean Golden frog (Rana chosenica) | Amphibians | Ranidae | Prohibited |
| Kurdistan newt (Neurergus microspilotus) | Amphibians | Salamandridae | Prohibited |
| Kwangtung River turtle (Chinemys nigricans) | Reptiles | Emydidae | Prohibited |
| Lake Urmia newt (Neurergus crocatus) | Amphibians | Salamandridae | Prohibited |
| Lamington Spiny crayfish (Euastacus sulcatus) | Crustaceans | Parastacidae | Prohibited |
| Land Yabby (Geocharax falcata) | Crustaceans | Parastacidae | Prohibited |
| Land Yabby (Parastacoides tasmanicus tasmanicus) | Crustaceans | Parastacidae | Prohibited |
| Levant Water frog (Rana bedriagae) | Amphibians | Ranidae | Prohibited |
| Lined leopard frog (Rana plancyi) | Amphibians | Ranidae | Prohibited |
| Long-Tailed Clawed salamander (Onychodactylus fischeri) | Amphibians | Hynobiidae | Prohibited |
| Longnose Gar (Lepisosteus osseus) | Fish | Lepisosteidae | Prohibited |
| Luristan newt (Neurergus kaiseri) | Amphibians | Salamandridae | Prohibited |
| Marbeled newt (Triturus marmoratus marmoratus) | Amphibians | Salamandridae | Prohibited |
| Marbled salamander (Ambystoma opacum) | Amphibians | Ambystomatidae | Prohibited |
| Marsh frog (Rana ridibunda) | Amphibians | Ranidae | Prohibited |
| Mediterranean Pond turtle (Mauremys leprosa) | Reptiles | Emydidae | Prohibited |
| Mediterranean Tree frog (Hyla meridionalis) | Amphibians | Hylidae | Prohibited |
| Mexican spadefoot toad (Spea multiplicata) | Amphibians | Pelobatidae | Prohibited |
| Montane Brown frog (Rana ornativentris) | Amphibians | Ranidae | Prohibited |
| Moor frog (Rana arvalis) | Amphibians | Ranidae | Prohibited |
| Murray crayfish (Euastacus armatus) | Crustaceans | Parastacidae | Prohibited |