Search for aquatic invasive species

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
Alewife (Alosa pseudoharengus) Fish Clupeidae Regulated
Atlantic salmon (Salmo salar) Fish Salmonidae Regulated
Australian Porcelain crab (Petrocheles australiensis) Crustaceans Porcellanidae Regulated
Black Chin tilapia (Sarotherodon melanotheron) Fish Cichlidae Regulated
Common carp (Cyprinus carpio carpio) Fish Cyprinidae Regulated
Common Hermit crab (Paguristes frontalis) Crustaceans Diogenidae Regulated
Gammarella berringar (Gammarella berringar) Crustaceans Melitidae Regulated
Green Snapping shrimp (Alpheus euphrosyne) Crustaceans Alpheidae Regulated
Mosquito fish (Gambusia affinis) Fish Poecilidae Regulated
Nile tilapia (Oreochromis niloticus) Fish Cichlidae Regulated
Patterned Anthurid (Mesanthura astelia) Crustaceans Anthuridae Regulated
Rough Shore crab (Cyclograpsus granulosus) Crustaceans Grapsidae Regulated
Sand Ghost shrimp (Biffarius arenosus) Crustaceans Callianassidae Regulated
Sea flea (Nebalia sp) Crustaceans Leptostraca Regulated
Southern Rock lobster (Jasus novaehollandiae) Crustaceans Panuliridae Regulated
Tench (Tinca tinca) Fish Cyprinidae Regulated
Tetraclitella purpurascens (Tetraclitella purpurascens) Crustaceans Tetraclitidae Regulated
Triploid Grass Carp (Ctenopharyngodon idella - Tripliod) Fish Cyprinidae Regulated
Varnish clam (Nuttallia obscurata) Molluscs Psammobiidae Regulated
Wild Goldfish (Carassius auratus) Fish Cyprinidae Regulated