| Taxonomic Group | Name | Year | Invasion Status | Population Status | Vectors |
|---|---|---|---|---|---|
| Algae | Campylaephora kondoi* | 1967 | Non-native | Established | Ballast Water, Hull Fouling, Oyster Accidental |
| Crustaceans-Amphipods | Caprella mutica | 2002 | Non-native | Established | Ballast Water, Hull Fouling |
| Algae | Fucus spiralis | 1960 | Non-native | Established | Hull Fouling, Oyster Accidental |
| Tunicates | Molgula citrina | 2008 | Non-native | Established | Hull Fouling |