Algae | Antithamnionella spirographidis* | None | Definite | Established | Hull Fouling |
Tunicates | Ascidiella aspersa | 1952 | Definite | Established | Hull Fouling |
Tunicates | Botryllus schlosseri | 1985 | Definite | Established | Hull Fouling |
Bryozoans | Bugula neritina | 1997 | Definite | Established | Hull Fouling |
Crustaceans-Amphipods | Caprella scaura | 1980 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Crabs | Carcinus maenas | 1993 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Tunicates | Ciona robusta | 1952 | Definite | Established | None |
Algae | Codium fragile ssp. Fragile | 1889 | Definite | Established | Ballast Water, Hull Fouling |
Cnidarians-Hydrozoans | Cordylophora caspia | 2002 | Definite | Established | Hull Fouling |
Cnidarians-Hydrozoans | Ectopleura crocea | 1952 | Definite | Established | Habitat Restoration |
Algae | Grateloupia turuturu | 2004 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Jassa marmorata | 1990 | Definite | Established | Ballast Water, Hull Fouling |
Algae | Leptosiphonia brodiei* | 1940 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Bivalves | Magallana gigas | 1947 | Definite | Established | Oyster Intentional |
Algae | Melanothamnus japonicus* | 2020 | Definite | Established | None |
Crustaceans-Amphipods | Monocorophium acherusicum | 1999 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Monocorophium insidiosum | 1999 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Bivalves | Mytilus galloprovincialis | 2009 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling |
Annelids-Polychaetes | Polydora hoplura | 1977 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Fishes | Salmo trutta* | 1864 | Definite | Established | Fisheries Intentional |
Algae | Striaria attenuata* | 1950 | Definite | Established | Ballast Water, Hull Fouling |
Algae | Striaria attenuata* | None | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Bivalves | Theora lubrica | 1997 | Definite | Established | Ballast Water |
Algae | Undaria pinnatifida | 1988 | Definite | Established | Ballast Water, Hull Fouling |
Bryozoans | Watersipora subatra* | 2014 | Definite | Established | Hull Fouling |
Bryozoans | Watersipora subtorquata | 2001 | Definite | Established | Hull Fouling |