Algae | Agardhiella subulata* | 1984 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental |
Bryozoans | Amathia verticillata | 1848 | Definite | Established | Hull Fouling |
Crustaceans-Barnacles | Amphibalanus eburneus | 1869 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Barnacles | Amphibalanus improvisus | None | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Ampithoe valida | 2000 | Definite | Established | Ballast Water, Hull Fouling |
Nematodes | Anguillicola crassus* | 1988 | Definite | Established | Fisheries Accidental (not Oyster) |
Algae | Antithamnion hubbsii* | 1988 | Definite | Established | Oyster Accidental |
Algae | Antithamnionella spirographidis* | None | Definite | Established | None |
Tunicates | Aplidium accarense* | 2013 | Definite | Established | None |
Mollusks-Bivalves | Arcuatula senhousia | 1978 | Definite | Established | Oyster Accidental |
Algae | Asparagopsis armata* | 1953 | Definite | Established | Ballast Water, Hull Fouling |
Cnidarians-Scyphozoans | Aurelia coerulea | 2003 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Barnacles | Austrominius modestus | 1995 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Barnacles | Balanus trigonus | 1979 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
Algae | Bonnemaisonia hamifera | 1882 | Definite | Established | Ballast Water, Hull Fouling |
Tunicates | Botrylloides diegensis | 2016 | Definite | Established | Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Branchiomma bairdi | 2006 | Definite | Established | Habitat Restoration |
Annelids-Polychaetes | Branchiomma bairdi | 2016 | Definite | Established | Hull Fouling |
Bryozoans | Bugulina stolonifera | 1958 | Definite | Established | Hull Fouling |
Crustaceans-Crabs | Callinectes sapidus | 1962 | Definite | Established | Ballast Water, Fisheries Intentional |
Crustaceans-Amphipods | Caprella scaura | 1958 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Algae | Caulacanthus okamurae | 2004 | Definite | Established | Oyster Accidental |
Algae | Caulerpa taxifolia (invasive genotype) | 1984 | Definite | Established | Aquatic Plant Shipments |
Nemerteans | Cephalothrix cf. simula* | 2013 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Tunicates | Ciona robusta | 1884 | Definite | Established | Hull Fouling |
Cnidarians-Hydrozoans | Clytia brevithecata | 2005 | Definite | Established | None |
Algae | Codium fragile ssp. Fragile | 1950 | Definite | Established | Hull Fouling |
Algae | Colpomenia peregrina* | 1956 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Cnidarians-Hydrozoans | Cordylophora caspia | 2006 | Definite | Established | Aquatic Plant Shipments, Fisheries Accidental (not Oyster), Hull Fouling |
Mollusks-Gastropods | Crepidula fornicata | 1957 | Definite | Established | Oyster Accidental |
Algae | Dasya sessilis* | 1984 | Definite | Established | None |
Algae | Dasysiphonia japonica | 1998 | Definite | Established | Hull Fouling, Oyster Accidental |
Cnidarians-Anthozoans | Diadumene lineata | 1967 | Definite | Established | Hull Fouling, Oyster Accidental |
Tunicates | Didemnum vexillum | 2012 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental |
Cnidarians-Hydrozoans | Ectopleura crocea | 1871 | Definite | Established | Hull Fouling |
Cnidarians-Hydrozoans | Eudendrium carneum | 1985 | Definite | Established | Ballast Water, Hull Fouling |
Cnidarians-Anthozoans | Exaiptasia pallida | 1973 | Definite | Established | Oyster Accidental |
Annelids-Polychaetes | Ficopomatus enigmaticus | 1933 | Definite | Established | Ballast Water, Hull Fouling |
Fishes | Gambusia holbrooki* | 1926 | Definite | Established | Biocontrol |
Algae | Grateloupia asiatica* | 1998 | Definite | Established | Oyster Accidental |
Algae | Grateloupia turuturu | 1982 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Mollusks-Gastropods | Haloa japonica | None | Definite | Established | Hull Fouling, Oyster Accidental |
Crustaceans-Isopods | Ianiropsis serricaudis | 2015 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Laticorophium baconi | 2018 | Definite | Established | Hull Fouling |
Algae | Laurencia caduciramulosa* | 2005 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Isopods | Limnoria quadripunctata | 2003 | Definite | Established | Hull Fouling |
Algae | Lomentaria hakodatensis* | 1979 | Definite | Established | Oyster Accidental |
Cnidarians-Hydrozoans | Macrorhynchia philippina | 2018 | Definite | Established | None |
Mollusks-Bivalves | Magallana gigas | 1964 | Definite | Established | Oyster Intentional |
Mollusks-Bivalves | Mercenaria mercenaria | 1965 | Definite | Established | Fisheries Intentional |
Tunicates | Microcosmus squamiger | 1971 | Definite | Established | Hull Fouling |
Ctenophores | Mnemiopsis leidyi* | 2004 | Definite | Established | Ballast Water |
Tunicates | Molgula manhattensis | 1969 | Definite | Established | Hull Fouling |
Mollusks-Bivalves | Mya arenaria | 1990 | Definite | Established | Ballast Water, Fisheries Intentional, Oyster Accidental |
Crustaceans-Copepods | Mytilicola orientalis | 1979 | Definite | Established | Oyster Accidental |
Mollusks-Bivalves | Mytilopsis leucophaeata | 2002 | Definite | Established | Ballast Water, Canal, Hull Fouling |
Mollusks-Gastropods | Naria turdus | 2005 | Definite | Established | None |
Algae | Neopyropia koreana* | 1987 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Copepods | Oithona davisae | 2000 | Definite | Established | Ballast Water |
Algae | Pachymeniopsis lanceolata* | 1998 | Definite | Established | Oyster Accidental |
Crustaceans-Amphipods | Paracaprella pusilla | 2007 | Definite | Established | None |
Crustaceans-Isopods | Paracerceis sculpta | 1995 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Isopods | Paranthura japonica | 2010 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Pileolaria berkeleyana | 1979 | Definite | Established | Hull Fouling |
Tunicates | Polyandrocarpa zorritensis | 1988 | Definite | Established | Hull Fouling |
Mollusks-Gastropods | Polycera hedgpethi | 2003 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Polydora cornuta | 1990 | Definite | Established | None |
Annelids-Polychaetes | Polydora hoplura | None | Definite | Established | None |
Mollusks-Gastropods | Potamopyrgus antipodarum | 1924 | Definite | Established | Cargo, Fisheries Accidental (not Oyster) |
Platyhelminthes | Pseudodactylogyrus anguillae* | 2000 | Definite | Established | Fisheries Accidental (not Oyster) |
Crustaceans-Copepods | Pseudodiaptomus marinus | 2010 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster) |
Fishes | Pterois miles* | 2023 | Definite | Established | None |
Mollusks-Gastropods | Rapana venosa | None | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal, Oyster Accidental |
Crustaceans-Crabs | Rhithropanopeus harrisii | 1999 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Protozoans | Rhizodomus tagatzi* | 1994 | Definite | Established | Ballast Water, Oyster Accidental |
Mollusks-Bivalves | Ruditapes philippinarum | 1980 | Definite | Established | Fisheries Intentional |
Algae | Sargassum muticum | 1980 | Definite | Established | Oyster Accidental |
Crustaceans-Isopods | Sphaeroma walkeri | 1981 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Streblospio benedicti | 2006 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Tunicates | Styela canopus | None | Definite | Established | Hull Fouling |
Tunicates | Styela clava | 2006 | Definite | Established | Hull Fouling, Oyster Accidental |
Tunicates | Styela plicata | None | Definite | Established | Hull Fouling |
Algae | Symphyocladia tanakae* | 1998 | Definite | Established | Oyster Accidental |
Bryozoans | Tricellaria inopinata | 2015 | Definite | Established | Hull Fouling |
Algae | Ulva australis | 1994 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Algae | Undaria pinnatifida | 1971 | Definite | Established | Oyster Accidental |
Bryozoans | Victorella pavida | 1956 | Definite | Established | Hull Fouling |
Bryozoans | Watersipora arcuata | 2013 | Definite | Established | Hull Fouling |
Bryozoans | Watersipora subatra* | 2019 | Definite | Established | Hull Fouling, Oyster Accidental |
Bryozoans | Watersipora subtorquata | 1971 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental |