Taxonomic GroupNameYearInvasion StatusPopulation StatusVectors
FishesAlosa sapidissima1942DefiniteEstablishedNatural Dispersal
Crustaceans-AmphipodsGrandidierella japonica2002DefiniteEstablishedBallast Water, Hull Fouling, Natural Dispersal, Oyster Accidental
Annelids-PolychaetesHediste diadroma2012DefiniteEstablishedBallast Water, Hull Fouling
Annelids-PolychaetesHobsonia florida1979DefiniteEstablishedHull Fouling, Oyster Accidental
Mollusks-BivalvesMya arenaria1917DefiniteEstablishedFisheries Intentional
Mollusks-BivalvesNuttallia obscurata2008DefiniteEstablishedFisheries Accidental (not Oyster), Natural Dispersal
* = Species summary still under review.