| Arthropoda-Insects | Arcola malloi* | 1971 | Definite | Established | Biocontrol |
| Crustaceans-Barnacles | Balanus trigonus | 1977 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Cnidarians-Hydrozoans | Blackfordia virginica | 1978 | Definite | Established | Ballast Water, Hull Fouling |
| Cnidarians-Hydrozoans | Cordylophora caspia | 1974 | Definite | Established | Aquatic Plant Shipments, Fisheries Accidental (not Oyster), Hull Fouling |
| Cnidarians-Anthozoans | Diadumene lineata | 1978 | Definite | Established | Hull Fouling |
| Fishes | Dorosoma petenense | 1974 | Definite | Established | Fisheries Intentional |
| Algae | Gracilaria vermiculophylla | 2009 | Definite | Established | Hull Fouling, Natural Dispersal |
| Crustaceans-Copepods | Lernaea cyprinacea | 1978 | Definite | Established | Fisheries Accidental (not Oyster), Pet Release |
| Cnidarians-Hydrozoans | Maeotias marginata | 1972 | Definite | Established | Ballast Water, Hull Fouling |
| Crustaceans-Barnacles | Megabalanus coccopoma | 2007 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Cnidarians-Hydrozoans | Moerisia lyonsi | 1978 | Definite | Established | Ballast Water, Hull Fouling |
| Crustaceans-Shrimp | Penaeus monodon | 1988 | Definite | Established | Fisheries Accidental (not Oyster), Natural Dispersal |
| Crustaceans-Crabs | Petrolisthes armatus | 1997 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal, Oyster Accidental |
| Mollusks-Bivalves | Rangia cuneata | None | Definite | Established | Ballast Water, Canal, Oyster Accidental |
| Crustaceans-Isopods | Synidotea laticauda | 2008 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |