Fishes | Acanthogobius flavimanus | 2023 | Definite | Established | Natural Dispersal |
Annelids-Polychaetes | Alitta succinea | 2015 | Definite | Established | Ballast Water, Hull Fouling |
Fishes | Alosa sapidissima | 1891 | Definite | Established | Natural Dispersal |
Crustaceans-Barnacles | Amphibalanus improvisus | 2003 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Ampithoe valida | 2000 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Aoroides secunda | 2015 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Bivalves | Arcuatula senhousia | 2001 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Entoprocts | Barentsia benedeni | 2000 | Definite | Established | Hull Fouling, Oyster Accidental |
Tunicates | Botrylloides violaceus | 1992 | Definite | Established | Hull Fouling |
Tunicates | Botryllus schlosseri | 1972 | Definite | Established | Hull Fouling, Oyster Accidental |
Bryozoans | Bugula neritina | 1999 | Definite | Established | Hull Fouling, Oyster Accidental |
Bryozoans | Bugulina stolonifera | 2001 | Definite | Established | Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Caprella drepanochir | 2006 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Caprella mutica | 1973 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Crabs | Carcinus maenas | 1995 | Definite | Established | Ballast Water, Discarded Bait, Natural Dispersal |
Sponges | Chalinula loosanoffi* | 2002 | Definite | Established | Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Chelura terebrans | 2000 | Definite | Established | Hull Fouling |
Tunicates | Ciona savignyi | 2001 | Definite | Established | Ballast Water, Hull Fouling |
Sponges | Clathria prolifera* | 2000 | Definite | Established | Hull Fouling, Oyster Accidental |
Bryozoans | Conopeum tenuissimum | 2000 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Cnidarians-Hydrozoans | Cordylophora caspia | 1968 | Definite | Established | Hull Fouling, Oyster Accidental |
Tunicates | Corella inflata | 2009 | Definite | Established | Hull Fouling |
Mollusks-Gastropods | Crepidula convexa | 1989 | Definite | Established | Hull Fouling, Oyster Accidental |
Bryozoans | Cryptosula pallasiana | 2000 | Definite | Established | Hull Fouling, Oyster Accidental |
Cnidarians-Anthozoans | Diadumene leucolena | 2000 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Cnidarians-Anthozoans | Diadumene lineata | 1974 | Definite | Established | Hull Fouling, Oyster Accidental |
Cnidarians-Anthozoans | Diadumene paranaensis | 1988 | Definite | Established | Ballast Water, Hull Fouling |
Tunicates | Didemnum vexillum | 2001 | Definite | Established | Hull Fouling, Oyster Accidental |
Tunicates | Diplosoma listerianum | 2001 | Definite | Established | Hull Fouling, Oyster Accidental |
Cnidarians-Hydrozoans | Ectopleura crocea | 2003 | Definite | Established | Hull Fouling |
Crustaceans-Ostracods | Eusarsiella zostericola | 2011 | Definite | Established | None |
Algae | Fucus spiralis | 1994 | Definite | Established | Discarded Bait, Dry Ballast, Hull Fouling, Oyster Accidental |
Fishes | Gambusia affinis | 2000 | Definite | Established | Biocontrol |
Mollusks-Bivalves | Gemma gemma | 1992 | Definite | Established | Oyster Accidental |
Algae | Gracilaria vermiculophylla | 2017 | Definite | Established | Oyster Accidental |
Crustaceans-Amphipods | Grandidierella japonica | 1985 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Sponges | Halichondria bowerbanki* | 1989 | Definite | Established | Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Heteromastus filiformis species complex | 2000 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Hydroides elegans | 2003 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Isopods | Iais californica | 1931 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Incisocalliope derzhavini | 2000 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Jassa marmorata | 2000 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling, Oyster Accidental |
Protozoans | Lagenophrys cochinensis* | 1931 | Definite | Established | Hull Fouling |
Mollusks-Bivalves | Laternula gracilis | 1995 | Definite | Established | Ballast Water |
Crustaceans-Isopods | Limnoria quadripunctata | 1949 | Definite | Established | Hull Fouling |
Algae | Lomentaria hakodatensis* | 1990 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Megasyllis nipponica | 2015 | Definite | Established | Ballast Water, Habitat Restoration |
Crustaceans-Amphipods | Melita nitida | 2000 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Microdeutopus gryllotalpa | 1985 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling |
Tunicates | Molgula citrina | 2011 | Definite | Established | Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental |
Tunicates | Molgula manhattensis | 1996 | Definite | Established | Hull Fouling |
Crustaceans-Amphipods | Monocorophium acherusicum | 1971 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Monocorophium insidiosum | 2000 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Monocorophium uenoi | 2000 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Mollusks-Bivalves | Mya arenaria | 1917 | Definite | Established | Fisheries Intentional |
Mollusks-Gastropods | Myosotella myosotis | 1876 | Definite | Established | Cargo, Dry Ballast, Oyster Accidental |
Crustaceans-Copepods | Mytilicola orientalis | 1963 | Definite | Established | Hull Fouling, Oyster Accidental |
Mollusks-Bivalves | Mytilus galloprovincialis | 1990 | Definite | Established | Ballast Water, Fisheries Intentional, Hull Fouling |
Cnidarians-Anthozoans | Nematostella vectensis | 1992 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Nicolea sp. A. Harris | 2011 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Shrimp | Palaemon macrodactylus | 1995 | Definite | Established | Ballast Water |
Crustaceans-Amphipods | Paracorophium sp. | 2000 | Definite | Established | Ballast Water, Hull Fouling |
Tunicates | Perophora japonica | 2003 | Definite | Established | Hull Fouling |
Mollusks-Gastropods | Philine auriformis | 2015 | Definite | Established | Ballast Water |
Mollusks-Gastropods | Philine orientalis | 2015 | Definite | Established | Ballast Water |
Annelids-Polychaetes | Polydora cornuta | 1992 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Pseudopolydora cf. kempi | 1992 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Pseudopolydora paucibranchiata | 2000 | Definite | Established | Ballast Water, Oyster Accidental |
Crustaceans-Isopods | Pseudosphaeroma sp. A | 2011 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Bivalves | Ruditapes philippinarum | 1964 | Definite | Established | Oyster Accidental |
Algae | Sargassum muticum | 1965 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal, Oyster Accidental |
Bryozoans | Schizoporella japonica | 1992 | Definite | Established | Hull Fouling, Oyster Accidental |
Bryozoans | Schizoporella variabilis | 2015 | Definite | Established | None |
Crustaceans-Tanaids | Sinelobus cf. stanfordi | 1989 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Isopods | Sphaeroma quoianum | 1931 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Stenothoe valida | 2000 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Streblospio benedicti | 1992 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Tunicates | Styela clava | 2000 | Definite | Established | Hull Fouling, Oyster Accidental |
Protozoans | Trochammina hadai* | 1998 | Definite | Established | Ballast Water, Oyster Accidental |
Mollusks-Gastropods | Urosalpinx cinerea | 1941 | Definite | Established | Oyster Accidental |
Bryozoans | Watersipora n. sp. | 2007 | Definite | Established | Hull Fouling |
Bryozoans | Watersipora subatra* | 2000 | Definite | Established | Hull Fouling |