| Taxonomic Group | Name | Year | Invasion Status | Population Status | Vectors |
|---|---|---|---|---|---|
| Bryozoans | Amathia dichotoma* | 2013 | Definite | Established | Hull Fouling |
| Tunicates | Didemnum vexillum | 2002 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling |
| Mollusks-Bivalves | Mytilus galloprovincialis | 1987 | Definite | Established | Ballast Water, Hull Fouling |
| Mollusks-Gastropods | Philine auriformis | 1998 | Definite | Established | Natural Dispersal |
| Algae | Sargassum muticum | 1973 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |