Taxonomic GroupNameYearInvasion StatusPopulation StatusVectors
Cnidarians-HydrozoansCordylophora caspia2009DefiniteEstablishedAquatic Plant Shipments, Fisheries Accidental (not Oyster), Hull Fouling
Mollusks-BivalvesDreissena bugensis2003DefiniteEstablishedBallast Water, Hull Fouling
Mollusks-GastropodsPotamopyrgus antipodarum2006DefiniteEstablishedBallast Water, Fisheries Accidental (not Oyster), Hull Fouling, Natural Dispersal
* = Species summary still under review.