Taxonomic GroupNameYearInvasion StatusPopulation StatusVectors
NematodesAnguillicola crassus*2005DefiniteEstablishedFisheries Accidental (not Oyster), Natural Dispersal
AlgaeBonnemaisonia hamifera1968DefiniteEstablishedFisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal
Crustaceans-CrabsCarcinus maenas1902DefiniteEstablishedDry Ballast, Hull Fouling, Natural Dispersal
Crustaceans-CrabsHemigrapsus sanguineus2009DefiniteEstablishedHull Fouling, Natural Dispersal
Mollusks-GastropodsLittorina littorea1880DefiniteEstablishedDry Ballast, Hull Fouling, Natural Dispersal
* = Species summary still under review.