| Taxonomic Group | Name | Year | Invasion Status | Population Status | Vectors |
|---|---|---|---|---|---|
| Algae | Bonnemaisonia hamifera | 1994 | Definite | Established | Ballast Water, Hull Fouling |
| Algae | Codium fragile ssp. Fragile | 1995 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling |
| Algae | Dumontia contorta* | 1997 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Algae | Melanosiphon intestinalis* | 1996 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal |
| Annelids-Polychaetes | Hediste diversicolor | 1963 | Definite | Established | Ballast Water, Dry Ballast |
| Arthropoda-Insects | Petrobius brevistylis* | 1967 | Definite | Established | Dry Ballast, Hull Fouling |
| Cnidarians-Anthozoans | Diadumene lineata | 2004 | Definite | Established | Hull Fouling |
| Crustaceans-Amphipods | Corophium volutator | 1977 | Definite | Established | Ballast Water, Dry Ballast |
| Crustaceans-Amphipods | Orchestia gammarellus | 1864 | Definite | Established | Dry Ballast |
| Crustaceans-Crabs | Carcinus maenas | 1951 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
Showing 1 to 10 of 19 entries