| Taxonomic Group | Name | Year | Invasion Status | Population Status | Vectors |
|---|---|---|---|---|---|
| Crustaceans-Barnacles | Amphibalanus amphitrite | 1985 | Definite | Established | Ballast Water, Hull Fouling |
| Crustaceans-Isopods | Ligia exotica | 1950 | Definite | Established | Cargo, Dry Ballast |
| Bryozoans | Membraniporopsis tubigerum | 1940 | Definite | Established | Ballast Water, Hull Fouling |
| Crustaceans-Isopods | Paradella dianae | 1978 | Definite | Established | Ballast Water, Hull Fouling |