Taxonomic GroupNameYearInvasion StatusPopulation StatusVectors
Crustaceans-BarnaclesAmphibalanus reticulatus1986DefiniteEstablishedBallast Water, Hull Fouling, Natural Dispersal
Annelids-PolychaetesBoccardiella ligerica1985DefiniteEstablishedBallast Water
Annelids-OligochaetesBranchiura sowerbyi*1972DefiniteEstablishedAquatic Plant Shipments, Ballast Water, Dry Ballast, Fisheries Accidental (not Oyster)
Mollusks-BivalvesCorbicula fluminea1977DefiniteEstablishedDiscarded Bait, Fisheries Accidental (not Oyster), Fisheries Intentional, Pet Release
Cnidarians-HydrozoansCordylophora caspia1976DefiniteEstablishedAquatic Plant Shipments, Fisheries Accidental (not Oyster), Hull Fouling
FishesCyprinus carpio1953DefiniteEstablishedFisheries Accidental (not Oyster), Fisheries Intentional
Crustaceans-IsopodsLigia exotica1940DefiniteEstablishedCargo, Dry Ballast
FishesMorone saxatilis1977DefiniteEstablishedFisheries Intentional
Arthropoda-InsectsNipponaclerda biwakoensis*2018DefiniteEstablishedCargo, Natural Dispersal
Crustaceans-ShrimpPenaeus monodon2011DefiniteEstablishedFisheries Accidental (not Oyster), Natural Dispersal
Crustaceans-IsopodsSphaeroma terebrans1945DefiniteEstablishedHull Fouling
* = Species summary still under review.