Algae | Bonnemaisonia hamifera | 1968 | Definite | Established | Ballast Water, Hull Fouling |
Tunicates | Botrylloides violaceus | 1998 | Definite | Established | Hull Fouling |
Crustaceans-Amphipods | Caprella mutica | 2007 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal |
Crustaceans-Crabs | Carcinus maenas | 1986 | Definite | Established | Hull Fouling, Natural Dispersal |
Tunicates | Ciona intestinalis | 1912 | Definite | Established | Hull Fouling |
Algae | Codium fragile ssp. Fragile | 1983 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal, Oyster Accidental |
Algae | Colpomenia peregrina* | 2011 | Definite | Established | Hull Fouling, Natural Dispersal |
Platyhelminthes | Convoluta convoluta* | 1995 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
Platyhelminthes | Cryptocotyle lingua* | 2005 | Definite | Established | Dry Ballast, Fisheries Accidental (not Oyster), Fisheries Intentional, Hull Fouling, Natural Dispersal |
Algae | Dasysiphonia japonica | 2011 | Definite | Established | Hull Fouling, Natural Dispersal |
Tunicates | Didemnum vexillum | 2003 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling |
Tunicates | Diplosoma listerianum | 1993 | Definite | Established | Hull Fouling |
Mollusks-Nudibranchs | Doris pseudoargus | 2019 | Definite | Established | None |
Algae | Dumontia contorta* | 1996 | Definite | Established | Hull Fouling |
Crustaceans-Crabs | Hemigrapsus sanguineus | 1998 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
Crustaceans-Isopods | Ligia oceanica | 1951 | Definite | Established | Cargo, Dry Ballast |
Mollusks-Gastropods | Littorina littorea | 2004 | Definite | Established | Dry Ballast, Hull Fouling, Natural Dispersal |
Algae | Lomentaria orcadensis* | 1996 | Definite | Established | Hull Fouling |
Bryozoans | Membranipora membranacea | 1987 | Definite | Established | Ballast Water, Hull Fouling |
Algae | Neopyropia yezoensis* | None | Definite | Established | None |
Mollusks-Bivalves | Ostrea edulis | 2003 | Definite | Established | Natural Dispersal, Oyster Intentional |
Arthropoda-Insects | Petrobius brevistylis* | 1968 | Definite | Established | Cargo, Dry Ballast |
Crustaceans-Mysids | Praunus flexuosus | 1972 | Definite | Established | Ballast Water, Natural Dispersal |
Algae | Ulonema rhizophorum* | None | Definite | Established | None |