Taxonomic GroupNameYearInvasion StatusPopulation StatusVectors
Annelids-PolychaetesAlitta succinea1956DefiniteEstablishedBallast Water, Hull Fouling
Arthropoda-InsectsAnisolabis maritima2015DefiniteEstablishedCargo, Dry Ballast
AlgaeAntithamnionella spirographidis*NoneDefiniteEstablishedNone
Crustaceans-AmphipodsApocorophium acutum*NoneDefiniteEstablishedBallast Water, Hull Fouling
TunicatesAscidia sydneiensis2007DefiniteEstablishedHull Fouling
TunicatesAscidiella aspersa2001DefiniteEstablishedHull Fouling
Cnidarians-HydrozoansBlackfordia virginica1991DefiniteEstablishedBallast Water, Hull Fouling
TunicatesBotryllus schlosseri1946DefiniteEstablishedHull Fouling
BryozoansBugula neritinaNoneDefiniteEstablishedHull Fouling
Crustaceans-AmphipodsChelura terebrans1889DefiniteEstablishedHull Fouling
TunicatesCiona robusta1955DefiniteEstablishedHull Fouling
TunicatesClavelina lepadiformis2001DefiniteEstablishedHull Fouling
TunicatesDiplosoma listerianumNoneDefiniteEstablishedHull Fouling
Cnidarians-HydrozoansEctopleura crocea1953DefiniteEstablishedHull Fouling
Cnidarians-HydrozoansEudendrium carneum1950DefiniteEstablishedBallast Water, Hull Fouling
Cnidarians-AnthozoansExaiptasia pallida1935DefiniteEstablishedBallast Water, Hull Fouling
Annelids-PolychaetesFicopomatus enigmaticus1975DefiniteEstablishedHull Fouling
FishesGambusia affinis1970DefiniteEstablishedBiocontrol
Annelids-PolychaetesJanua heterostropha1971DefiniteEstablishedHull Fouling
Crustaceans-AmphipodsJassa marmorata1951DefiniteEstablishedBallast Water, Hull Fouling
Crustaceans-IsopodsLimnoria quadripunctata1897DefiniteEstablishedHull Fouling
Crustaceans-IsopodsLimnoria tripunctata1964DefiniteEstablishedHull Fouling
Mollusks-GastropodsLittorina saxatilis1969DefiniteEstablishedDry Ballast, Oyster Accidental
Mollusks-BivalvesLyrodus pedicellatusNoneDefiniteEstablishedNone
Mollusks-BivalvesMagallana gigas1955DefiniteEstablishedOyster Intentional
TunicatesMicrocosmus squamiger1950DefiniteEstablishedHull Fouling
Crustaceans-AmphipodsMonocorophium acherusicum1914DefiniteEstablishedBallast Water, Hull Fouling
Mollusks-GastropodsMyosotella myosotis1889DefiniteEstablishedCargo, Dry Ballast
Mollusks-BivalvesMytilus galloprovincialis1987DefiniteEstablishedBallast Water, Fisheries Accidental (not Oyster), Hull Fouling
Annelids-PolychaetesNeodexiospira brasiliensis1961DefiniteEstablishedHull Fouling, Natural Dispersal
Crustaceans-AmphipodsOrchestia gammarellus1949DefiniteEstablishedCargo, Dry Ballast
Crustaceans-AmphipodsParacaprella pusilla1955DefiniteEstablishedBallast Water, Hull Fouling
Crustaceans-IsopodsParacerceis sculpta2006DefiniteEstablishedBallast Water, Hull Fouling
Mollusks-GastropodsPolycera hedgpethi1972DefiniteEstablishedBallast Water, Hull Fouling
Annelids-PolychaetesPolydora hoplura1967DefiniteEstablishedBallast Water, Hull Fouling, Oyster Accidental
PlatyhelminthesPseudodactylogyrus anguillae*NoneDefiniteEstablishedBallast Water, Fisheries Accidental (not Oyster)
Crustaceans-IsopodsSphaeroma walkeri1917DefiniteEstablishedBallast Water, Hull Fouling
TunicatesStyela plicata1951DefiniteEstablishedHull Fouling
Mollusks-GastropodsTarebia granifera2005DefiniteEstablishedAquatic Plant Shipments, Pet Release
Mollusks-BivalvesTeredo navalis1886DefiniteEstablishedHull Fouling
* = Species summary still under review.