Taxonomic Group	Name	Year	Invasion Status	Population Status	Vectors
Annelids-Polychaetes	Alitta succinea	1998	Definite	Established	Ballast Water, Discarded Bait, Hull Fouling
Fishes	Alosa sapidissima	1882	Definite	Established	Natural Dispersal
Crustaceans-Amphipods	Ampithoe valida	1998	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Arcuatula senhousia	1959	Definite	Established	Oyster Accidental
Entoprocts	Barentsia benedeni	1998	Definite	Established	Hull Fouling, Oyster Accidental
Mollusks-Gastropods	Batillaria attramentaria	1977	Definite	Established	Oyster Accidental
Tunicates	Botrylloides violaceus	1998	Definite	Established	Hull Fouling, Oyster Accidental
Tunicates	Botryllus schlosseri	1998	Definite	Established	Hull Fouling, Oyster Accidental
Bryozoans	Bugulina stolonifera	1998	Definite	Established	Hull Fouling
Crustaceans-Isopods	Caecidotea racovitzai	1997	Definite	Established	Aquatic Plant Shipments, Ballast Water
Crustaceans-Amphipods	Caprella mutica	1998	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Crustaceans-Crabs	Carcinus maenas	2022	Definite	Established	None
Arthropoda-Insects	Chilacis typhae*	1997	Definite	Established	Aquatic Plant Shipments, Cargo, Dry Ballast
Algae	Chorda asiatica	1993	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Tunicates	Ciona savignyi	1998	Definite	Established	Ballast Water, Hull Fouling
Cnidarians-Hydrozoans	Cordylophora caspia	1920	Definite	Established	Aquatic Plant Shipments, Hull Fouling
Mollusks-Gastropods	Crepidula fornicata	1931	Definite	Established	Oyster Accidental
Bryozoans	Cryptosula pallasiana	1972	Definite	Established	Hull Fouling, Oyster Accidental
Cnidarians-Anthozoans	Diadumene lineata	1939	Definite	Established	Hull Fouling, Oyster Accidental
Tunicates	Didemnum vexillum	2004	Definite	Established	Fisheries Accidental (not Oyster), Hull Fouling, Oyster Accidental
Tunicates	Diplosoma listerianum	1966	Definite	Established	Hull Fouling
Crustaceans-Amphipods	Eochelidium sp. A	1997	Definite	Established	Ballast Water
Crustaceans-Amphipods	Grandidierella japonica	1977	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Sponges	Halichondria bowerbanki*	1998	Definite	Established	Hull Fouling, Oyster Accidental
Mollusks-Gastropods	Haloa japonica	2006	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Annelids-Polychaetes	Hediste diadroma	2012	Definite	Established	Ballast Water, Hull Fouling
Annelids-Polychaetes	Hobsonia florida	1940	Definite	Established	Oyster Accidental
Crustaceans-Isopods	Ianiropsis serricaudis	2010	Definite	Established	Hull Fouling, Oyster Accidental
Crustaceans-Amphipods	Incisocalliope derzhavini	1998	Definite	Established	Ballast Water, Hull Fouling
Crustaceans-Amphipods	Jassa marmorata	1998	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Platyhelminthes	Koinostylochus ostreophagus*	1953	Definite	Established	Oyster Accidental
Crustaceans-Isopods	Limnoria tripunctata	1998	Definite	Established	Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Magallana gigas	1902	Definite	Established	Oyster Intentional
Crustaceans-Amphipods	Melita nitida	1966	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Tunicates	Molgula manhattensis	1998	Definite	Established	Hull Fouling
Crustaceans-Amphipods	Monocorophium acherusicum	1915	Definite	Established	Ballast Water, Hull Fouling, Oyster Intentional
Crustaceans-Amphipods	Monocorophium insidiosum	1915	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Mya arenaria	1888	Definite	Established	Fisheries Intentional
Mollusks-Gastropods	Myosotella myosotis	1936	Definite	Established	Cargo, Dry Ballast, Oyster Accidental
Crustaceans-Copepods	Mytilicola orientalis	1943	Definite	Established	Hull Fouling, Oyster Accidental
Mollusks-Bivalves	Mytilus galloprovincialis	1994	Definite	Established	Ballast Water, Fisheries Accidental (not Oyster), Fisheries Intentional, Hull Fouling
Cnidarians-Anthozoans	Nematostella vectensis	1993	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Crustaceans-Cumaceans	Nippoleucon hinumensis	1998	Definite	Established	Ballast Water, Oyster Accidental
Mollusks-Bivalves	Nuttallia obscurata	1998	Definite	Established	Ballast Water, Natural Dispersal
Mollusks-Gastropods	Ocinebrellus inornatus	1932	Definite	Established	Oyster Accidental
Crustaceans-Isopods	Orthione griffenis	1995	Definite	Established	Ballast Water
Annelids-Polychaetes	Polydora cornuta	1940	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Mollusks-Gastropods	Potamopyrgus antipodarum	2009	Definite	Established	Fisheries Accidental (not Oyster)
Annelids-Polychaetes	Pseudopolydora cf. kempi	1979	Definite	Established	Ballast Water, Oyster Accidental
Annelids-Polychaetes	Pseudopolydora paucibranchiata	2007	Definite	Established	Ballast Water, Oyster Accidental
Mollusks-Bivalves	Ruditapes philippinarum	1943	Definite	Established	Oyster Accidental
Algae	Sargassum muticum	1950	Definite	Established	Oyster Accidental
Bryozoans	Schizoporella japonica	1943	Definite	Established	Hull Fouling, Oyster Accidental
Crustaceans-Tanaids	Sinelobus cf. stanfordi	2000	Definite	Established	Ballast Water, Hull Fouling
Annelids-Polychaetes	Streblospio benedicti	1998	Definite	Established	Ballast Water, Hull Fouling, Oyster Accidental
Tunicates	Styela clava	2005	Definite	Established	Hull Fouling
Bryozoans	Watersipora n. sp.	2010	Definite	Established	Hull Fouling

* = Species summary still under review.

p290 (Puget Sound) Summary