Taxonomic Group	Name	Year	Invasion Status	Population Status	Vectors
Bryozoans	Amathia verticillata	1807	Definite	Established	Hull Fouling
Crustaceans-Barnacles	Amphibalanus amphitrite	1854	Definite	Established	Hull Fouling
Crustaceans-Barnacles	Amphibalanus eburneus	1954	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Barnacles	Amphibalanus improvisus	1872	Definite	Established	Hull Fouling, Oyster Accidental
Crustaceans-Amphipods	Ampithoe valida	1993	Definite	Established	Ballast Water, Hull Fouling
Nematodes	Anguillicola crassus*	1998	Definite	Established	Fisheries Accidental (not Oyster), Natural Dispersal
Algae	Antithamnion hubbsii*	2007	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Algae	Antithamnionella spirographidis*	None	Definite	Established	Hull Fouling, Natural Dispersal
Mollusks-Bivalves	Arcuatula senhousia	2002	Definite	Established	Oyster Accidental
Algae	Asparagopsis armata*	1925	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Barnacles	Austrominius modestus	1955	Definite	Established	Ballast Water, Hull Fouling, Natural Dispersal
Crustaceans-Barnacles	Balanus trigonus	None	Definite	Established	Ballast Water, Hull Fouling, Natural Dispersal
Cnidarians-Hydrozoans	Blackfordia virginica	1984	Definite	Established	Ballast Water, Hull Fouling
Protozoans	Bonamia ostreae*	1979	Definite	Established	Oyster Accidental
Algae	Bonnemaisonia hamifera	1986	Definite	Established	Hull Fouling
Tunicates	Botrylloides violaceus	2006	Definite	Established	Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Bryozoans	Bugula neritina	1997	Definite	Established	Hull Fouling, Oyster Accidental
Bryozoans	Bugulina simplex	1994	Definite	Established	Hull Fouling
Bryozoans	Bugulina stolonifera	1979	Definite	Established	Hull Fouling
Crustaceans-Crabs	Callinectes sapidus	1960	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster)
Crustaceans-Amphipods	Caprella mutica	2013	Definite	Established	None
Crustaceans-Amphipods	Caprella scaura	2009	Definite	Established	Ballast Water, Hull Fouling
Algae	Caulacanthus okamurae	None	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Bryozoans	Celleporaria brunnea*	2012	Definite	Established	Hull Fouling, Oyster Accidental
Nemerteans	Cephalothrix cf. simula*	2013	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Tunicates	Clavelina oblonga*	None	Definite	Established	Hull Fouling, Oyster Accidental
Algae	Codium fragile ssp. Fragile	1986	Definite	Established	Hull Fouling, Natural Dispersal
Algae	Colpomenia peregrina*	1911	Definite	Established	Hull Fouling, Oyster Accidental
Cnidarians-Hydrozoans	Cordylophora caspia	1973	Definite	Established	Aquatic Plant Shipments, Fisheries Accidental (not Oyster), Hull Fouling
Mollusks-Gastropods	Crepidula fornicata	1977	Definite	Established	Oyster Accidental
Algae	Dasya sessilis*	2007	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Algae	Dasysiphonia japonica	1988	Definite	Established	Oyster Accidental
Cnidarians-Anthozoans	Diadumene lineata	1967	Definite	Established	Hull Fouling, Oyster Accidental
Tunicates	Didemnum vexillum	2007	Definite	Established	Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Crustaceans-Crabs	Eriocheir sinensis	1958	Definite	Established	Ballast Water, Natural Dispersal
Cnidarians-Hydrozoans	Eudendrium carneum	2007	Definite	Established	Ballast Water, Hull Fouling
Annelids-Polychaetes	Ficopomatus enigmaticus	1978	Definite	Established	Ballast Water, Hull Fouling
Fishes	Gambusia holbrooki*	1921	Definite	Established	Biocontrol
Algae	Gracilaria vermiculophylla	1985	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Algae	Grateloupia turuturu	1991	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Gastropods	Haloa japonica	1992	Definite	Established	Fisheries Accidental (not Oyster), Oyster Accidental
Annelids-Polychaetes	Hydroides dianthus	1927	Definite	Established	Hull Fouling, Oyster Accidental
Crustaceans-Isopods	Ianiropsis serricaudis	2011	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Bryozoans	Juxtacribrilina mutabilis	2019	Definite	Established	None
Crustaceans-Amphipods	Laticorophium baconi	2011	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Isopods	Limnoria quadripunctata	1995	Definite	Established	Hull Fouling
Algae	Lomentaria hakodatensis*	1984	Definite	Established	Oyster Accidental
Cnidarians-Hydrozoans	Macrorhynchia philippina	2014	Definite	Established	Hull Fouling
Cnidarians-Hydrozoans	Maeotias marginata	2002	Definite	Established	Ballast Water, Hull Fouling
Mollusks-Bivalves	Magallana gigas	1971	Definite	Established	Oyster Intentional
Algae	Melanothamnus japonicus*	1996	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Crustaceans-Amphipods	Melita nitida	2013	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Mercenaria mercenaria	1861	Definite	Established	Fisheries Accidental (not Oyster), Fisheries Intentional
Tunicates	Microcosmus squamiger	1994	Definite	Established	Hull Fouling
Ctenophores	Mnemiopsis leidyi*	2017	Definite	Established	None
Tunicates	Molgula manhattensis	1969	Definite	Established	Hull Fouling
Crustaceans-Amphipods	Monocorophium uenoi	2007	Definite	Established	Oyster Accidental
Mollusks-Bivalves	Mya arenaria	1600	Definite	Established	Ballast Water, Fisheries Intentional, Natural Dispersal
Crustaceans-Copepods	Mytilicola orientalis	1977	Definite	Established	Oyster Accidental
Mollusks-Bivalves	Mytilopsis leucophaeata	1993	Definite	Established	Ballast Water
Mollusks-Gastropods	Ocinebrellus inornatus	1999	Definite	Established	Oyster Accidental
Crustaceans-Copepods	Oithona davisae	2001	Definite	Established	Ballast Water
Crustaceans-Shrimp	Palaemon macrodactylus	1997	Definite	Established	Ballast Water
Crustaceans-Amphipods	Paracaprella pusilla	2011	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Isopods	Paracerceis sculpta	1988	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Isopods	Paradella dianae	1988	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Isopods	Paranthura japonica	2010	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Algae	Phycocalidia suborbiculata*	2010	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Cnidarians-Scyphozoans	Phyllorhiza punctata	2018	Definite	Established	Ballast Water, Hull Fouling, Pet Release
Mollusks-Gastropods	Polycera hedgpethi	2002	Definite	Established	Ballast Water, Hull Fouling
Tunicates	Polyclinum constellatum	2016	Definite	Established	Hull Fouling
Annelids-Polychaetes	Polydora hoplura	None	Definite	Established	None
Mollusks-Gastropods	Potamopyrgus antipodarum	1978	Definite	Established	Aquatic Plant Shipments, Fisheries Accidental (not Oyster)
Arthropoda-Insects	Prokelisia marginata*	1999	Definite	Established	Cargo, Dry Ballast
Platyhelminthes	Pseudodactylogyrus anguillae*	1984	Definite	Established	Fisheries Accidental (not Oyster)
Crustaceans-Copepods	Pseudodiaptomus marinus	2010	Definite	Established	Ballast Water
Annelids-Polychaetes	Pseudopolydora cf. kempi	None	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Annelids-Polychaetes	Pseudopolydora paucibranchiata	1999	Definite	Established	Ballast Water, Oyster Accidental
Mollusks-Gastropods	Rapana venosa	2007	Definite	Established	Oyster Accidental
Crustaceans-Crabs	Rhithropanopeus harrisii	1971	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Ruditapes philippinarum	1980	Definite	Established	Fisheries Intentional
Algae	Sargassum muticum	1985	Definite	Established	Hull Fouling, Natural Dispersal, Oyster Accidental
Bryozoans	Schizoporella japonica	2015	Definite	Established	None
Crustaceans-Isopods	Sphaeroma walkeri	2017	Definite	Established	Ballast Water, Hull Fouling
Annelids-Polychaetes	Streblospio benedicti	1991	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Tunicates	Styela canopus	None	Definite	Established	Hull Fouling
Tunicates	Styela clava	1980	Definite	Established	Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Tunicates	Styela plicata	1989	Definite	Established	Hull Fouling
Crustaceans-Isopods	Synidotea laticauda	1975	Definite	Established	Ballast Water, Hull Fouling
Mollusks-Bivalves	Teredo bartschi	2002	Definite	Established	Hull Fouling
Mollusks-Bivalves	Theora lubrica	2010	Definite	Established	Ballast Water
Bryozoans	Tricellaria inopinata	2000	Definite	Established	Hull Fouling, Oyster Accidental
Algae	Ulva australis	2003	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Algae	Undaria pinnatifida	1988	Definite	Established	Oyster Accidental
Bryozoans	Victorella pavida	1965	Definite	Established	Hull Fouling, Oyster Accidental
Bryozoans	Watersipora arcuata	1990	Definite	Established	None
Bryozoans	Watersipora subatra*	1996	Definite	Established	Hull Fouling, Oyster Accidental

* = Species summary still under review.

nea-v (None) Summary