| Fishes | Alosa sapidissima | None | Definite | Established | Natural Dispersal |
| Mollusks-Gastropods | Assiminea parasitologica | 2008 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling |
| Tunicates | Botrylloides violaceus | 1986 | Definite | Established | Hull Fouling |
| Tunicates | Botryllus schlosseri | 1986 | Definite | Established | Hull Fouling, Oyster Accidental |
| Mollusks-Gastropods | Catriona rickettsi | 1980 | Definite | Established | Ballast Water, Hull Fouling |
| Tunicates | Didemnum vexillum | 2010 | Definite | Established | Hull Fouling, Oyster Accidental |
| Crustaceans-Amphipods | Grandidierella japonica | 2001 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal, Oyster Accidental |
| Annelids-Polychaetes | Hediste diadroma | None | Definite | Established | Ballast Water |
| Annelids-Polychaetes | Hobsonia florida | 1983 | Definite | Established | Oyster Accidental |
| Tunicates | Molgula citrina | 2010 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental |
| Fishes | Morone saxatilis | 1945 | Definite | Established | Natural Dispersal |
| Mollusks-Bivalves | Mya arenaria | 1943 | Definite | Established | Fisheries Intentional |
| Crustaceans-Cumaceans | Nippoleucon hinumensis | 1983 | Definite | Established | Ballast Water |
| Crustaceans-Shrimp | Palaemon modestus | 1997 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster) |
| Mollusks-Gastropods | Potamopyrgus antipodarum | 2005 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal |
| Crustaceans-Copepods | Pseudodiaptomus inopinus | 1991 | Definite | Established | Ballast Water |
| Annelids-Polychaetes | Streblospio benedicti | 1983 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |