Algae | Aglaothamnion tenuissimum* | 1978 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Alitta succinea | 1896 | Definite | Established | Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Ampelisca abdita | 1954 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling, Oyster Accidental |
Crustaceans-Barnacles | Amphibalanus improvisus | 1853 | Definite | Established | Hull Fouling |
Crustaceans-Amphipods | Ampithoe valida | 1941 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling, Oyster Accidental |
Bryozoans | Anguinella palmata | 1993 | Definite | Established | Hull Fouling |
Arthropoda-Insects | Anisolabis maritima | 1935 | Definite | Established | Cargo, Dry Ballast |
Mollusks-Bivalves | Arcuatula senhousia | 1946 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Cnidarians-Hydrozoans | Blackfordia virginica | 1970 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Boccardiella ligerica | 1954 | Definite | Established | Ballast Water |
Tunicates | Botryllus schlosseri | 1947 | Definite | Established | Hull Fouling, Oyster Accidental |
Cnidarians-Hydrozoans | Calyptospadix cerulea | 1901 | Definite | Established | Hull Fouling, Oyster Accidental |
Sponges | Chalinula loosanoffi* | 1950 | Definite | Established | Hull Fouling, Oyster Accidental |
Sponges | Clathria prolifera* | 1950 | Definite | Established | Hull Fouling, Oyster Accidental |
Bryozoans | Conopeum tenuissimum | 1951 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Cnidarians-Hydrozoans | Cordylophora caspia | 1951 | Definite | Established | Aquatic Plant Shipments, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Corophium alienense | 1973 | Definite | Established | Ballast Water |
Crustaceans-Amphipods | Corophium heteroceratum | 1986 | Definite | Established | Ballast Water |
Bryozoans | Cryptosula pallasiana | 1943 | Definite | Established | Hull Fouling, Oyster Accidental |
Cnidarians-Anthozoans | Diadumene franciscana | 1940 | Definite | Established | Ballast Water, Hull Fouling |
Cnidarians-Anthozoans | Diadumene leucolena | 1936 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Cnidarians-Anthozoans | Diadumene lineata | 1906 | Definite | Established | Hull Fouling, Oyster Accidental |
Cnidarians-Anthozoans | Diadumene paranaensis | 1975 | Definite | Established | Ballast Water, Hull Fouling |
Cnidarians-Hydrozoans | Ectopleura crocea | 1865 | Definite | Established | Hull Fouling |
Crustaceans-Crabs | Eriocheir sinensis | 1994 | Definite | Established | Ballast Water, Fisheries Intentional |
Crustaceans-Isopods | Eurylana arcuata | 1978 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Copepods | Eurytemora carolleeae | 1913 | Definite | Established | Ballast Water, Fisheries Accidental (not Oyster), Oyster Accidental |
Crustaceans-Ostracods | Eusarsiella zostericola | 1953 | Definite | Established | Oyster Accidental |
Annelids-Polychaetes | Ficopomatus enigmaticus | 1921 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Gammarus daiberi | 2004 | Definite | Established | Ballast Water |
Mollusks-Bivalves | Gemma gemma | 1899 | Definite | Established | Oyster Accidental |
Mollusks-Bivalves | Geukensia demissa | 1894 | Definite | Established | Oyster Accidental |
Crustaceans-Amphipods | Grandidierella japonica | 1966 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Sponges | Halichondria bowerbanki* | 1950 | Definite | Established | Hull Fouling, Oyster Accidental |
Annelids-Polychaetes | Heteromastus filiformis species complex | 1936 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Mollusks-Gastropods | Ilyanassa obsoleta | 1907 | Definite | Established | Oyster Accidental |
Crustaceans-Amphipods | Incisocalliope derzhavini | 1904 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Gastropods | Leostyletus misakiensis | 1962 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Mollusks-Bivalves | Limecola petalum | 1988 | Definite | Established | Ballast Water, Oyster Accidental |
Crustaceans-Isopods | Limnoria tripunctata | 1875 | Definite | Established | Hull Fouling |
Mollusks-Gastropods | Littoridinops monroensis | 2005 | Definite | Established | Aquatic Plant Shipments, Ballast Water, Dry Ballast |
Cnidarians-Hydrozoans | Maeotias marginata | 1992 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Megasyllis nipponica | 2004 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Amphipods | Melita nitida | 1938 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling, Oyster Accidental |
Tunicates | Molgula manhattensis | 1955 | Definite | Established | Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Monocorophium acherusicum | 1912 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Monocorophium insidiosum | 1931 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Amphipods | Monocorophium uenoi | 2003 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Bivalves | Mya arenaria | 1895 | Definite | Established | Oyster Accidental |
Mollusks-Gastropods | Myosotella myosotis | 1871 | Definite | Established | Cargo, Dry Ballast, Oyster Accidental |
Mollusks-Bivalves | Mytilus galloprovincialis | 1987 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Mysids | Neomysis japonica | 2004 | Definite | Established | Ballast Water |
Crustaceans-Cumaceans | Nippoleucon hinumensis | 1986 | Definite | Established | Ballast Water |
Crustaceans-Copepods | Oithona davisae | 1963 | Definite | Established | Ballast Water |
Mollusks-Gastropods | Okenia plana | 1963 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Mysids | Orientomysis hwanhaiensis | 1997 | Definite | Established | Ballast Water |
Crustaceans-Crayfish | Pacifastacus leniusculus | 1959 | Definite | Established | Fisheries Intentional |
Crustaceans-Shrimp | Palaemon macrodactylus | 1959 | Definite | Established | Ballast Water |
Algae | Polysiphonia denudata* | 1963 | Definite | Established | Ballast Water, Discarded Bait, Hull Fouling |
Mollusks-Bivalves | Potamocorbula amurensis | 1987 | Definite | Established | Ballast Water |
Mollusks-Gastropods | Potamopyrgus antipodarum | 2004 | Definite | Established | Aquatic Plant Shipments, Fisheries Accidental (not Oyster) |
Sponges | Prosuberites sp.* | 2004 | Definite | Established | Hull Fouling, Oyster Accidental |
Crustaceans-Copepods | Pseudodiaptomus marinus | 1986 | Definite | Established | Ballast Water |
Crustaceans-Isopods | Pseudosphaeroma sp. A | 2004 | Definite | Established | Ballast Water, Hull Fouling |
Crustaceans-Crabs | Rhithropanopeus harrisii | 1979 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Mollusks-Bivalves | Ruditapes philippinarum | 1949 | Definite | Established | Oyster Accidental |
Annelids-Polychaetes | Sabaco elongatus | 1960 | Definite | Established | Ballast Water |
Algae | Sargassum muticum | 1973 | Definite | Established | Ballast Water, Hull Fouling, Natural Dispersal |
Crustaceans-Tanaids | Sinelobus cf. stanfordi | 1943 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Isopods | Sphaeroma quoianum | 1898 | Definite | Established | Hull Fouling |
Crustaceans-Amphipods | Stenothoe valida | 1941 | Definite | Established | Ballast Water, Hull Fouling |
Annelids-Polychaetes | Streblospio benedicti | 1932 | Definite | Established | Ballast Water, Hull Fouling, Oyster Accidental |
Crustaceans-Isopods | Synidotea laticauda | 1897 | Definite | Established | Hull Fouling |
Mollusks-Gastropods | Tenellia adspersa | 1953 | Definite | Established | Ballast Water, Hull Fouling |
Mollusks-Bivalves | Teredo navalis | 1913 | Definite | Established | Hull Fouling |
Arthropoda-Insects | Thambemyia borealis* | 1994 | Definite | Established | Cargo, Hull Fouling |
Mollusks-Bivalves | Theora lubrica | 1982 | Definite | Established | Ballast Water |
Crustaceans-Copepods | Tortanus dextrilobatus | 1997 | Definite | Established | Ballast Water |
Annelids-Oligochaetes | Tubificoides brownae* | 1961 | Definite | Established | Ballast Water, Dry Ballast, Hull Fouling, Oyster Accidental |
Annelids-Oligochaetes | Tubificoides wasselli* | 1961 | Definite | Established | Ballast Water, Dry Ballast, Hull Fouling, Oyster Accidental |
Crustaceans-Isopods | Uromunna sp. A | 1989 | Definite | Established | Ballast Water, Hull Fouling |
Bryozoans | Victorella pavida | 2004 | Definite | Established | Hull Fouling, Oyster Accidental |