| Tunicates | Aplidium phortax | None | Definite | Estab | |
| Tunicates | Ascidiella aspersa | 1946 | Definite | Estab | |
| Tunicates | Botryllus schlosseri | 1944 | Definite | Estab | |
| Cnidarians-Hydrozoans | Bougainvillia muscus | 1996 | Definite | Estab | |
| Bryozoans | Bugula neritina | 1992 | Definite | Estab | |
| Bryozoans | Bugulina flabellata | None | Definite | Estab | |
| Bryozoans | Bugulina stolonifera | 1992 | Definite | Estab | |
| Sponges | Cliona sp.* | None | Definite | Estab | |
| Algae | Codium fragile ssp. Fragile | 1935 | Definite | Estab | |
| Bryozoans | Cryptosula pallasiana | 1989 | Definite | Estab | |
| Tunicates | Diplosoma listerianum | 1946 | Definite | Estab | |
| Crustaceans-Amphipods | Jassa marmorata | 2001 | Definite | Estab | |
| Algae | Leptosiphonia brodiei* | 1983 | Definite | Estab | |
| Crustaceans-Amphipods | Monocorophium acherusicum | 2001 | Definite | Estab | |
| Fishes | Oncorhynchus tshawytscha* | None | Definite | Estab | |
| Cnidarians-Hydrozoans | Plumularia setacea | None | Definite | Estab | |
| Annelids-Polychaetes | Polydora hoplura | 2002 | Definite | Estab | |
| Fishes | Salmo trutta* | 1916 | Definite | Estab | |
| Algae | Striaria attenuata* | 1971 | Definite | Estab | |
| Algae | Undaria pinnatifida | 1999 | Definite | Estab | |
| Bryozoans | Watersipora subtorquata | 1982 | Definite | Estab | |