| Crustaceans-Barnacles | Amphibalanus improvisus | 1895 | Definite | Established | Ballast Water, Hull Fouling |
| Nematodes | Anguillicola crassus* | 1987 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Natural Dispersal |
| Crustaceans-Cladocerans | Cercopagis pengoi* | 1997 | Definite | Established | Ballast Water, Natural Dispersal |
| Cnidarians-Hydrozoans | Cordylophora caspia | 1872 | Definite | Established | Hull Fouling |
| Mollusks-Bivalves | Dreissena polymorpha | None | Definite | Established | None |
| Crustaceans-Crabs | Eriocheir sinensis | 1932 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Crustaceans-Mysids | Hemimysis anomala* | 2018 | Definite | Established | None |
| Annelids-Polychaetes | Laonome cf. calida | 2018 | Definite | Established | None |
| Annelids-Polychaetes | Marenzelleria neglecta | 2005 | Definite | Established | Ballast Water, Natural Dispersal |
| Mollusks-Bivalves | Mya arenaria | 1834 | Definite | Established | Dry Ballast, Fisheries Intentional, Natural Dispersal |
| Fishes | Neogobius melanostomus* | 2010 | Definite | Established | Ballast Water, Natural Dispersal |
| Mollusks-Gastropods | Potamopyrgus antipodarum | 1920 | Definite | Established | Dry Ballast, Natural Dispersal, Packing Material |
| Annelids-Oligochaetes | Potamothrix vejdovskyi* | 1967 | Definite | Established | None |
| Mollusks-Bivalves | Rangia cuneata | 2016 | Definite | Established | Ballast Water |
| Crustaceans-Crabs | Rhithropanopeus harrisii | 2014 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling |
| Arthropoda-Insects | Telmatogeton japonicus* | 2007 | Definite | Established | Cargo, Hull Fouling |