| Annelids-Polychaetes | Alitta succinea | None | Definite | Estab | |
| Bryozoans | Amathia verticillata | 1986 | Definite | Estab | |
| Crustaceans-Barnacles | Amphibalanus amphitrite | 1937 | Definite | Estab | |
| Crustaceans-Barnacles | Amphibalanus eburneus | 1963 | Definite | Estab | |
| Crustaceans-Barnacles | Amphibalanus improvisus | 1963 | Definite | Estab | |
| Arthropoda-Insects | Anisolabis maritima | None | Definite | Estab | |
| Tunicates | Ascidiella aspersa | 2010 | Definite | Estab | |
| Cnidarians-Hydrozoans | Blackfordia virginica | 1962 | Definite | Estab | |
| Tunicates | Botrylloides diegensis | 2017 | Definite | Estab | |
| Bryozoans | Bugulina stolonifera | 1950 | Definite | Estab | |
| Bryozoans | Celleporaria brunnea* | 2004 | Definite | Estab | |
| Tunicates | Clavelina lepadiformis | 2011 | Definite | Estab | |
| Cnidarians-Hydrozoans | Cordylophora caspia | 1984 | Definite | Estab | |
| Mollusks-Gastropods | Crepidula onyx | 1983 | Definite | Estab | |
| Mollusks-Gastropods | Cuthona perca | 1993 | Definite | Estab | |
| Algae | Dumontia contorta* | 2015 | Definite | Estab | |
| Cnidarians-Hydrozoans | Ectopleura crocea | 1959 | Definite | Estab | |
| Cnidarians-Hydrozoans | Eudendrium carneum | 1975 | Definite | Estab | |
| Fishes | Gambusia affinis | 1911 | Definite | Estab | |
| Sponges | Halichondria bowerbanki* | 2008 | Definite | Estab | |
| Annelids-Polychaetes | Hydroides dianthus | 2016 | Definite | Estab | |
| Crustaceans-Amphipods | Jassa marmorata | 1981 | Definite | Estab | |
| Cnidarians-Hydrozoans | Maeotias marginata | 1985 | Definite | Estab | |
| Tunicates | Microcosmus squamiger | 2022 | Definite | Estab | |
| Tunicates | Molgula manhattensis | 2001 | Definite | Estab | |
| Crustaceans-Amphipods | Monocorophium acherusicum | 1956 | Definite | Estab | |
| Crustaceans-Amphipods | Monocorophium insidiosum | None | Definite | Estab | |
| Mollusks-Bivalves | Mytella strigata | 2019 | Definite | Estab | |
| Mollusks-Bivalves | Mytilopsis sallei* | 1990 | Definite | Estab | |
| Mollusks-Bivalves | Mytilus galloprovincialis | 1950 | Definite | Estab | |
| Fishes | Oreochromis mossambicus | 1982 | Definite | Estab | |
| Mollusks-Bivalves | Perna viridis | 2000 | Definite | Estab | |
| Tunicates | Polyandrocarpa zorritensis | 1991 | Definite | Estab | |
| Mollusks-Gastropods | Polycera hedgpethi | None | Definite | Estab | |
| Annelids-Polychaetes | Polydora cornuta | 1990 | Definite | Estab | |
| Crustaceans-Crabs | Pyromaia tuberculata | None | Definite | Estab | |
| Crustaceans-Isopods | Sphaeroma walkeri | 2001 | Definite | Estab | |
| Algae | Stictyosiphon soriferus* | 2005 | Definite | Estab | |