na-s2 (None) Summary

Taxonomic Group	Name	Year	Invasion Status	Population Status	Vectors
Algae	Bonnemaisonia hamifera	1968	Definite	Established	Ballast Water, Hull Fouling
Algae	Codium fragile ssp. Fragile	2013	Definite	Established	Fisheries Accidental (not Oyster), Hull Fouling
Algae	Dumontia contorta*	1988	Definite	Established	Ballast Water, Hull Fouling
Mollusks-Gastropods	Littorina littorea	1882	Definite	Established	Dry Ballast, Hull Fouling, Natural Dispersal
Algae	Melanosiphon intestinalis*	1977	Definite	Established	Ballast Water, Hull Fouling
Bryozoans	Membranipora membranacea	2009	Definite	Established	Ballast Water, Hull Fouling, Natural Dispersal
Crustaceans-Amphipods	Orchestia gammarellus	1961	Definite	Established	None
Arthropoda-Insects	Petrobius brevistylis*	1969	Definite	Established	Cargo, Dry Ballast
Fishes	Salmo trutta*	None	Definite	Established	Fisheries Intentional

* = Species summary still under review.