| Crustaceans-Barnacles | Amphibalanus improvisus | None | Definite | Established | Ballast Water, Hull Fouling |
| Crustaceans-Cladocerans | Cercopagis pengoi* | 1992 | Definite | Established | Ballast Water, Canal |
| Cnidarians-Hydrozoans | Cordylophora caspia | 1924 | Definite | Established | Canal, Hull Fouling |
| Fishes | Cyprinus carpio | 1400 | Definite | Established | Fisheries Accidental (not Oyster) |
| Mollusks-Bivalves | Dreissena polymorpha | 1855 | Definite | Established | Canal |
| Crustaceans-Crabs | Eriocheir sinensis | 1933 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Crustaceans-Amphipods | Gammarus tigrinus | 2003 | Definite | Established | Ballast Water, Canal, Natural Dispersal |
| Crustaceans-Mysids | Hemimysis anomala* | 2012 | Definite | Established | Fisheries Accidental (not Oyster), Natural Dispersal |
| Annelids-Polychaetes | Laonome cf. calida | 2014 | Definite | Established | Ballast Water, Hull Fouling |
| Annelids-Polychaetes | Marenzelleria neglecta | 1995 | Definite | Established | Ballast Water |
| Annelids-Polychaetes | Marenzelleria viridis | 1988 | Definite | Established | Ballast Water, Natural Dispersal |
| Mollusks-Bivalves | Mya arenaria | None | Definite | Established | Dry Ballast, Fisheries Intentional, Natural Dispersal |
| Fishes | Neogobius melanostomus* | 2002 | Definite | Established | Ballast Water, Natural Dispersal |
| Crustaceans-Crayfish | Pacifastacus leniusculus | 2016 | Definite | Established | Fisheries Accidental (not Oyster), Natural Dispersal |
| Crustaceans-Shrimp | Palaemon elegans | 2011 | Definite | Established | Ballast Water, Natural Dispersal |
| Mollusks-Gastropods | Potamopyrgus antipodarum | 1927 | Definite | Established | Cargo, Dry Ballast, Natural Dispersal, Packing Material |
| Annelids-Oligochaetes | Potamothrix vejdovskyi* | 1999 | Definite | Established | Ballast Water, Canal |
| Mollusks-Bivalves | Rangia cuneata | 2014 | Definite | Established | Ballast Water |
| Crustaceans-Crabs | Rhithropanopeus harrisii | 2011 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |