Bryozoans | Amathia distans | 1889 | Definite | Established | Hull Fouling |
Bryozoans | Amathia verticillata | 1977 | Definite | Established | Hull Fouling |
Crustaceans-Barnacles | Amphibalanus amphitrite | None | Definite | Established | Ballast Water, Hull Fouling |
Algae | Antithamnionella spirographidis* | 1950 | Definite | Established | Hull Fouling |
Tunicates | Ascidiella aspersa | 1952 | Definite | Established | Hull Fouling |
Entoprocts | Barentsia benedeni | 1997 | Definite | Established | Hull Fouling |
Tunicates | Botryllus schlosseri | 1955 | Definite | Established | Hull Fouling |
Bryozoans | Bowerbankia gracilis | None | Definite | Established | None |
Bryozoans | Bugula neritina | 1975 | Definite | Established | Hull Fouling |
Bryozoans | Bugulina flabellata | 1977 | Definite | Established | Hull Fouling |
Bryozoans | Bugulina simplex | 1983 | Definite | Established | Hull Fouling |
Bryozoans | Bugulina stolonifera | 1977 | Definite | Established | Hull Fouling |
Crustaceans-Crabs | Carcinus maenas | 1976 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
Algae | Caulerpa taxifolia (invasive genotype) | 2002 | Definite | Established | None |
Tunicates | Ciona robusta | 1952 | Definite | Established | None |
Algae | Codium fragile ssp. Fragile | 2002 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling |
Cnidarians-Hydrozoans | Cordylophora caspia | 2006 | Definite | Established | Hull Fouling |
Bryozoans | Cryptosula pallasiana | 1977 | Definite | Established | Hull Fouling |
Algae | Elachista nigra | 1976 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Isopods | Eurylana arcuata | 1981 | Definite | Established | Ballast Water, Dry Ballast, Hull Fouling |
Cnidarians-Anthozoans | Exaiptasia pallida | None | Definite | Established | None |
Algae | Leptosiphonia brodiei* | 1973 | Definite | Established | Hull Fouling |
Crustaceans-Amphipods | Monocorophium acherusicum | 2001 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Gastropods | Myosotella myosotis | 1877 | Definite | Established | Cargo, Dry Ballast |
Crustaceans-Isopods | Paracerceis sculpta | 2000 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Gastropods | Polycera hedgpethi | 1998 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Polydora cornuta | 1979 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Polydora hoplura | 1971 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Pseudopolydora paucibranchiata | 1997 | Definite | Established | Ballast Water, Oyster Accidental |
Bryozoans | Schizoporella unicornis | 1975 | Definite | Established | Hull Fouling |
Algae | Stictyosiphon soriferus* | 1975 | Definite | Established | Hull Fouling |
Algae | Striaria attenuata* | 1978 | Definite | Established | Hull Fouling |
Tunicates | Styela plicata | 1952 | Definite | Established | Hull Fouling |
Mollusks-Bivalves | Teredo navalis | 1931 | Definite | Established | Hull Fouling |
Mollusks-Gastropods | Thecacera pennigera | 2005 | Definite | Established | None |
Bryozoans | Watersipora arcuata | 1953 | Definite | Established | Hull Fouling |
Bryozoans | Watersipora subtorquata | 1977 | Definite | Established | Hull Fouling |