| Taxonomic Group | Name | Year | Invasion Status | Population Status | Vectors |
|---|---|---|---|---|---|
| Algae | Agardhiella subulata* | 1998 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental |
| Algae | Antithamnionella spirographidis* | 1910 | Definite | Established | Hull Fouling, Oyster Accidental |
| Algae | Asparagopsis armata* | 1949 | Definite | Established | Ballast Water, Hull Fouling |
| Algae | Bonnemaisonia hamifera | 1897 | Definite | Established | Ballast Water, Hull Fouling |
| Algae | Caulacanthus okamurae | 2005 | Definite | Established | Hull Fouling, Oyster Accidental |
| Algae | Codium fragile ssp. Fragile | 1863 | Definite | Established | Hull Fouling |
| Algae | Colpomenia peregrina* | 1907 | Definite | Established | Hull Fouling, Oyster Accidental |
| Algae | Dasya sessilis* | 2003 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
| Algae | Dasysiphonia japonica | 1994 | Definite | Established | Oyster Accidental |
| Algae | Gelidium vagum* | 2011 | Definite | Established | Hull Fouling, Oyster Accidental |
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