Taxonomic Group	Name	Year	Invasion Status	Population Status	Vectors
Algae	Agardhiella subulata*	1998	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Crustaceans-Barnacles	Amphibalanus amphitrite	1928	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Barnacles	Amphibalanus improvisus	1827	Definite	Established	Hull Fouling
Crustaceans-Amphipods	Ampithoe valida	2014	Definite	Established	Ballast Water, Hull Fouling
Nematodes	Anguillicola crassus*	1982	Definite	Established	Fisheries Accidental (not Oyster)
Algae	Antithamnionella spirographidis*	1910	Definite	Established	Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Arcuatula senhousia	2017	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Algae	Asparagopsis armata*	1949	Definite	Established	Ballast Water, Hull Fouling
Cnidarians-Scyphozoans	Aurelia coerulea	2008	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Crustaceans-Barnacles	Austrominius modestus	1944	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Barnacles	Balanus glandula	2015	Definite	Established	None
Cnidarians-Hydrozoans	Blackfordia virginica	2013	Definite	Established	Ballast Water, Hull Fouling
Protozoans	Bonamia ostreae*	1979	Definite	Established	Oyster Accidental
Algae	Bonnemaisonia hamifera	1897	Definite	Established	Ballast Water, Hull Fouling
Tunicates	Botrylloides diegensis	2002	Definite	Established	Hull Fouling
Tunicates	Botrylloides violaceus	2000	Definite	Established	Hull Fouling
Bryozoans	Bugula neritina	1959	Definite	Established	Hull Fouling
Bryozoans	Bugulina simplex	1957	Definite	Established	None
Bryozoans	Bugulina stolonifera	1960	Definite	Established	Hull Fouling
Crustaceans-Crabs	Callinectes sapidus	1932	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster)
Cnidarians-Hydrozoans	Calyptospadix cerulea	1920	Definite	Established	Hull Fouling
Crustaceans-Amphipods	Caprella mutica	1995	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Crustaceans-Amphipods	Caprella scaura	2009	Definite	Established	Biocontrol, Hull Fouling
Algae	Caulacanthus okamurae	2005	Definite	Established	Hull Fouling, Oyster Accidental
Nemerteans	Cephalothrix cf. simula*	2012	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Sponges	Chalinula loosanoffi*	1880	Definite	Established	Oyster Accidental
Tunicates	Ciona robusta	2012	Definite	Established	Hull Fouling
Annelids-Polychaetes	Clymenella torquata	1936	Definite	Established	Oyster Accidental
Algae	Codium fragile ssp. Fragile	1863	Definite	Established	Hull Fouling
Algae	Colpomenia peregrina*	1907	Definite	Established	Hull Fouling, Oyster Accidental
Cnidarians-Hydrozoans	Cordylophora caspia	1842	Definite	Established	Hull Fouling
Mollusks-Gastropods	Crepidula fornicata	1872	Definite	Established	Oyster Accidental
Algae	Dasya sessilis*	2003	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Algae	Dasysiphonia japonica	1994	Definite	Established	Oyster Accidental
Cnidarians-Anthozoans	Diadumene lineata	1913	Definite	Established	Hull Fouling, Oyster Accidental
Tunicates	Didemnum vexillum	1991	Definite	Established	Hull Fouling, Oyster Accidental
Crustaceans-Crabs	Eriocheir sinensis	1912	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster)
Crustaceans-Copepods	Eurytemora carolleeae	2009	Definite	Established	Ballast Water
Crustaceans-Ostracods	Eusarsiella zostericola	1967	Definite	Established	Oyster Accidental
Annelids-Polychaetes	Ficopomatus enigmaticus	1921	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Amphipods	Gammarus tigrinus	1931	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Fisheries Intentional
Algae	Gelidium vagum*	2011	Definite	Established	Hull Fouling, Oyster Accidental
Cnidarians-Hydrozoans	Gonionemus vertens	1913	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Algae	Gracilaria vermiculophylla	1980	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Algae	Gracilaria vermiculophylla	2007	Definite	Established	None
Crustaceans-Amphipods	Grandidierella japonica	1999	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Algae	Grateloupia turuturu	1969	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Crustaceans-Crabs	Hemigrapsus sanguineus	1999	Definite	Established	Ballast Water
Annelids-Polychaetes	Hydroides dianthus	1970	Definite	Established	Hull Fouling, Oyster Accidental
Crustaceans-Isopods	Ianiropsis serricaudis	2004	Definite	Established	Ballast Water, Hull Fouling
Mollusks-Bivalves	Ischadium recurvum	2012	Definite	Established	Ballast Water, Hull Fouling
Bryozoans	Juxtacribrilina mutabilis	2013	Definite	Established	None
Annelids-Polychaetes	Laonome cf. calida	2009	Definite	Established	Ballast Water
Crustaceans-Isopods	Limnoria quadripunctata	1948	Definite	Established	Hull Fouling
Crustaceans-Isopods	Limnoria tripunctata	1958	Definite	Established	Hull Fouling
Algae	Lomentaria hakodatensis*	2004	Definite	Established	Oyster Accidental
Mollusks-Bivalves	Lyrodus pedicellatus	1865	Definite	Established	Hull Fouling
Mollusks-Bivalves	Magallana gigas	1965	Definite	Established	Fisheries Intentional
Annelids-Polychaetes	Marenzelleria neglecta	1996	Definite	Established	Ballast Water
Annelids-Polychaetes	Marenzelleria viridis	1979	Definite	Established	Ballast Water
Crustaceans-Barnacles	Megabalanus coccopoma	1976	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Amphipods	Melita nitida	2000	Definite	Established	Ballast Water, Hull Fouling
Mollusks-Bivalves	Mercenaria mercenaria	1925	Definite	Established	Fisheries Intentional
Ctenophores	Mnemiopsis leidyi*	2005	Definite	Established	Ballast Water
Tunicates	Molgula manhattensis	1762	Definite	Established	Hull Fouling
Crustaceans-Amphipods	Monocorophium uenoi	2013	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Mya arenaria	1245	Definite	Established	Dry Ballast, Fisheries Intentional
Crustaceans-Copepods	Mytilicola orientalis	1992	Definite	Established	Oyster Accidental
Mollusks-Bivalves	Mytilopsis leucophaeata	1835	Definite	Established	Dry Ballast, Hull Fouling
Cnidarians-Anthozoans	Nematostella vectensis	1935	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Annelids-Polychaetes	Neodexiospira brasiliensis	1974	Definite	Established	Hull Fouling
Fishes	Neogobius melanostomus*	2004	Definite	Established	Ballast Water, Canal
Algae	Neopyropia yezoensis*	2003	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Mollusks-Gastropods	Ocinebrellus inornatus	2007	Definite	Established	Oyster Accidental
Crustaceans-Copepods	Oithona davisae	2010	Definite	Established	Biocontrol
Crustaceans-Shrimp	Palaemon macrodactylus	1992	Definite	Established	Ballast Water
Crustaceans-Isopods	Paranthura japonica	2019	Definite	Established	Ballast Water, Hull Fouling
Tunicates	Perophora japonica	2001	Definite	Established	Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Petricolaria pholadiformis	1890	Definite	Established	Oyster Accidental
Annelids-Polychaetes	Pileolaria berkeleyana	1974	Definite	Established	None
Algae	Polysiphonia senticulosa*	1993	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Potamocorbula amurensis	2018	Definite	Established	Ballast Water
Mollusks-Gastropods	Potamopyrgus antipodarum	1889	Definite	Established	Cargo
Arthropoda-Insects	Prokelisia marginata*	2008	Definite	Established	Cargo, Dry Ballast
Platyhelminthes	Pseudodactylogyrus anguillae*	1988	Definite	Established	Fisheries Accidental (not Oyster), Natural Dispersal
Crustaceans-Copepods	Pseudodiaptomus marinus	2011	Definite	Established	Ballast Water
Annelids-Polychaetes	Pseudopolydora paucibranchiata	2015	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Rangia cuneata	2005	Definite	Established	Ballast Water
Crustaceans-Crabs	Rhithropanopeus harrisii	1874	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Protozoans	Rhizodomus tagatzi*	2005	Definite	Established	Ballast Water
Mollusks-Bivalves	Ruditapes philippinarum	1974	Definite	Established	Fisheries Intentional
Algae	Sargassum muticum	1971	Definite	Established	Oyster Accidental
Bryozoans	Schizoporella japonica	2011	Definite	Established	Hull Fouling
Crustaceans-Tanaids	Sinelobus cf. stanfordi	2006	Definite	Established	Ballast Water, Hull Fouling
Annelids-Polychaetes	Streblospio benedicti	1999	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Tunicates	Styela canopus	1868	Definite	Established	Hull Fouling
Tunicates	Styela clava	1957	Definite	Established	Hull Fouling, Oyster Accidental
Crustaceans-Isopods	Synidotea laticauda	2005	Definite	Established	Ballast Water
Arthropoda-Insects	Telmatogeton japonicus*	1988	Definite	Established	Cargo, Hull Fouling
Mollusks-Bivalves	Theora lubrica	2003	Definite	Established	None
Bryozoans	Tricellaria inopinata	1998	Definite	Established	Hull Fouling, Oyster Accidental
Protozoans	Trochammina hadai*	2019	Definite	Established	None
Algae	Ulva australis	1993	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Algae	Ulva ohnoi	2018	Definite	Established	Ballast Water, Hull Fouling
Algae	Undaria pinnatifida	1994	Definite	Established	Hull Fouling
Mollusks-Gastropods	Urosalpinx cinerea	1920	Definite	Established	Oyster Accidental
Bryozoans	Victorella pavida	1870	Definite	Established	Hull Fouling
Bryozoans	Watersipora subatra*	2008	Definite	Established	Hull Fouling, Oyster Accidental

* = Species summary still under review.

nea-ii (None) Summary