| Taxonomic Group | Name | Year | |
|---|---|---|---|
| Bryozoans | Amathia verticillata | None | |
| Crustaceans-Barnacles | Amphibalanus amphitrite | None | |
| Crustaceans-Amphipods | Apocorophium acutum* | None | |
| Tunicates | Ascidiella aspersa | 1952 | |
| Tunicates | Botryllus schlosseri | 1985 | |
| Bryozoans | Bugula neritina | 2001 | |
| Bryozoans | Bugulina flabellata | None | |
| Bryozoans | Bugulina stolonifera | 2002 | |
| Tunicates | Ciona robusta | 1928 | |
| Tunicates | Ciona savignyi | 2002 | |
| Algae | Codium fragile ssp. Fragile | 2008 | |
| Bryozoans | Cryptosula pallasiana | 1997 | |
| Tunicates | Didemnum perlucidum | 2015 | |
| Algae | Melanothamnus japonicus* | 2010 | |
| Crustaceans-Amphipods | Monocorophium acherusicum | None | |
| Mollusks-Bivalves | Ostrea edulis | 2000 | |
| Crustaceans-Isopods | Paracerceis sculpta | 2002 | |
| Annelids-Polychaetes | Polydora hoplura | 2005 | |
| Bryozoans | Schizoporella unicornis | None | |
| Algae | Stictyosiphon soriferus* | 1979 | |
| Tunicates | Styela plicata | None | |
| Mollusks-Bivalves | Teredo navalis | None | |
| Bryozoans | Watersipora arcuata | 1997 | |
| Bryozoans | Watersipora subtorquata | None |