| Nematodes | Anguillicola crassus* | 1999 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Natural Dispersal |
| Arthropoda-Insects | Anisolabis maritima | 1916 | Definite | Established | Cargo, Dry Ballast |
| Crustaceans-Barnacles | Balanus trigonus | 1963 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Crustaceans-Crabs | Charybdis hellerii | 2004 | Definite | Established | Ballast Water, Natural Dispersal |
| Mollusks-Bivalves | Corbicula fluminea | 1980 | Definite | Established | Discarded Bait, Fisheries Accidental (not Oyster), Fisheries Intentional, Pet Release |
| Algae | Cylindrospermopsis raciborskii* | 2008 | Definite | Established | Aquatic Plant Shipments, Ballast Water, Fisheries Accidental (not Oyster), Natural Dispersal |
| Fishes | Cyprinus carpio | None | Definite | Established | Fisheries Accidental (not Oyster), Fisheries Intentional |
| Fishes | Dorosoma petenense | 1991 | Definite | Established | Fisheries Intentional |
| Protozoans | Haplosporidium nelsoni* | 1989 | Definite | Established | Hull Fouling, Natural Dispersal, Oyster Accidental |
| Crustaceans-Crabs | Hemigrapsus sanguineus | 2002 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Fishes | Ictalurus furcatus | 1975 | Definite | Established | None |
| Fishes | Ictalurus punctatus | None | Definite | Established | None |
| Fishes | Lepomis microlophus | 1991 | Definite | Established | Fisheries Intentional |
| Crustaceans-Isopods | Ligia exotica | 1982 | Definite | Established | Cargo, Dry Ballast |
| Crustaceans-Barnacles | Loxothylacus panopaei | 1974 | Definite | Established | Hull Fouling, Oyster Accidental |
| Crustaceans-Barnacles | Megabalanus coccopoma | 2011 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Crustaceans-Shrimp | Penaeus monodon | 2006 | Definite | Established | Fisheries Accidental (not Oyster), Natural Dispersal |
| Algae | Phycocalidia suborbiculata* | None | Definite | Established | None |
| Crustaceans-Crayfish | Procambarus clarkii | 1997 | Definite | Established | Discarded Bait, Fisheries Accidental (not Oyster), Pet Release |
| Fishes | Pterois miles* | 2004 | Definite | Established | Pet Release |
| Fishes | Pylodictis olivaris | 1980 | Definite | Established | Fisheries Intentional |
| Mollusks-Bivalves | Rangia cuneata | 1968 | Definite | Established | Ballast Water, Canal, Oyster Accidental |
| Crustaceans-Amphipods | Stenothoe gallensis species complex | 1962 | Definite | Established | Ballast Water, Hull Fouling |
| Algae | Striaria attenuata* | 1991 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Tunicates | Styela plicata | 1961 | Definite | Established | Hull Fouling |
| Mollusks-Bivalves | Teredo navalis | 1948 | Definite | Established | Hull Fouling |