| Taxonomic Group | Name | Year | Invasion Status | Population Status | Vectors |
|---|---|---|---|---|---|
| Algae | Antithamnion hubbsii* | 2003 | Definite | Established | Ballast Water, Hull Fouling |
| Algae | Codium fragile ssp. Fragile | 1981 | Definite | Established | Discarded Bait, Fisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal, Oyster Accidental |
| Algae | Gracilaria vermiculophylla | 2003 | Definite | Established | Hull Fouling, Oyster Accidental |
| Algae | Lomentaria orcadensis* | 1948 | Definite | Established | Ballast Water, Hull Fouling |
| Algae | Phycocalidia suborbiculata* | 1947 | Definite | Established | None |
| Cnidarians-Anthozoans | Diadumene lineata | 1929 | Definite | Established | Hull Fouling |
| Cnidarians-Hydrozoans | Cordylophora caspia | 1928 | Definite | Established | Hull Fouling |
| Cnidarians-Scyphozoans | Phyllorhiza punctata | 2007 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
| Crustaceans-Amphipods | Stenothoe gallensis species complex | 1957 | Definite | Established | Ballast Water, Hull Fouling |
| Crustaceans-Barnacles | Amphibalanus amphitrite | 1955 | Definite | Established | Ballast Water, Hull Fouling |
Showing 1 to 10 of 28 entries