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 |
|---|---|---|---|
| Rusty crayfish (Orconectes rusticus) | Crustaceans | Cambaridae | Prohibited |
| Orange fingered Yabby (Cherax destructor) | Crustaceans | Parastacidae | Prohibited |
| Tetraclitella purpurascens (Tetraclitella purpurascens) | Crustaceans | Tetraclitidae | Regulated |
| Rough Shore crab (Cyclograpsus granulosus) | Crustaceans | Grapsidae | Regulated |
| Australian Porcelain crab (Petrocheles australiensis) | Crustaceans | Porcellanidae | Regulated |
| Sand Ghost shrimp (Biffarius arenosus) | Crustaceans | Callianassidae | Regulated |
| Gammarella berringar (Gammarella berringar) | Crustaceans | Melitidae | Regulated |
| Common Hermit crab (Paguristes frontalis) | Crustaceans | Diogenidae | Regulated |
| Patterned Anthurid (Mesanthura astelia) | Crustaceans | Anthuridae | Regulated |
| Southern Rock lobster (Jasus novaehollandiae) | Crustaceans | Panuliridae | Regulated |
| Green Snapping shrimp (Alpheus euphrosyne) | Crustaceans | Alpheidae | Regulated |
| Sea flea (Nebalia sp) | Crustaceans | Leptostraca | Regulated |