Taxonomic GroupNameYearInvasion StatusPopulation StatusVectors
AlgaeBonnemaisonia hamifera1968DefiniteEstablishedBallast Water, Hull Fouling
TunicatesBotrylloides violaceus1998DefiniteEstablishedHull Fouling
Crustaceans-AmphipodsCaprella mutica2007DefiniteEstablishedBallast Water, Fisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal
Crustaceans-CrabsCarcinus maenas1986DefiniteEstablishedHull Fouling, Natural Dispersal
TunicatesCiona intestinalis1912DefiniteEstablishedHull Fouling
AlgaeCodium fragile ssp. Fragile1983DefiniteEstablishedFisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal, Oyster Accidental
AlgaeColpomenia peregrina*2011DefiniteEstablishedHull Fouling, Natural Dispersal
PlatyhelminthesConvoluta convoluta*1995DefiniteEstablishedBallast Water, Hull Fouling, Natural Dispersal
PlatyhelminthesCryptocotyle lingua*2005DefiniteEstablishedDry Ballast, Fisheries Accidental (not Oyster), Fisheries Intentional, Hull Fouling, Natural Dispersal
AlgaeDasysiphonia japonica2011DefiniteEstablishedHull Fouling, Natural Dispersal
TunicatesDidemnum vexillum2003DefiniteEstablishedFisheries Accidental (not Oyster), Hull Fouling
TunicatesDiplosoma listerianum1993DefiniteEstablishedHull Fouling
Mollusks-NudibranchsDoris pseudoargus2019DefiniteEstablishedNone
AlgaeDumontia contorta*1996DefiniteEstablishedHull Fouling
Crustaceans-CrabsHemigrapsus sanguineus1998DefiniteEstablishedBallast Water, Hull Fouling, Natural Dispersal
Crustaceans-IsopodsLigia oceanica1951DefiniteEstablishedCargo, Dry Ballast
Mollusks-GastropodsLittorina littorea2004DefiniteEstablishedDry Ballast, Hull Fouling, Natural Dispersal
AlgaeLomentaria orcadensis*1996DefiniteEstablishedHull Fouling
BryozoansMembranipora membranacea1987DefiniteEstablishedBallast Water, Hull Fouling
AlgaeNeopyropia yezoensis*NoneDefiniteEstablishedNone
Mollusks-BivalvesOstrea edulis2003DefiniteEstablishedNatural Dispersal, Oyster Intentional
Arthropoda-InsectsPetrobius brevistylis*1968DefiniteEstablishedCargo, Dry Ballast
Crustaceans-MysidsPraunus flexuosus1972DefiniteEstablishedBallast Water, Natural Dispersal
AlgaeUlonema rhizophorum*NoneDefiniteEstablishedNone
* = Species summary still under review.