1 |
Acartia tonsa |
1916 |
1900-1924 |
Western North Atlantic - Zuiderzee, Denmark |
biofouling |
Unknown |
003224 |
2 |
Amphibalanus eburneus |
1997 |
1975-present |
East coast of North America - Not specified |
biofouling |
Unknown |
003512 |
3 |
Amphibalanus improvisus |
1853 |
18th century |
Northwest Atlantic - San Francisco Bay, California. |
accidental with ships |
Unknown |
007836 |
4 |
Ampithoe longimana |
1949 |
1925-1949 |
Western North Atlantic - New Port Bay, California |
biofouling |
Unknown |
003224 |
5 |
Beroe ovata |
1997 |
1975-present |
Coastal waters of North America. - Northeastern Black Sea. |
accidental with ships |
probably yes |
007407 |
6 |
Boonea bisuturalis |
|
1925-1949 |
New York - San Francisco Bay |
accidental |
|
125669 |
7 |
Bugulina stolonifera |
1985 |
1975-present |
Possibly from northwest Atlantic - Monterey Bay California |
biofouling |
Unknown |
007836 |
8 |
Callinectes sapidus |
1964 |
1950-1974 |
Northwest Atlantic. - North Sea. |
accidental with ships |
Unknown |
003700 |
9 |
Clymenella torquata |
2006 |
1975-present |
Northwest Atlantic - Marine waters of Ireland |
aquaculture |
yes |
074339 |
10 |
Conopeum tenuissimum |
1951 |
1950-1974 |
Northwest Atlantic - San Francisco Bay, California. |
ballast water |
Unknown |
007836 |
11 |
Crassostrea virginica |
1866 |
18th century |
Eastern part of North America. - Pearl Harbor |
aquaculture |
Unknown |
003248 |
12 |
Crassostrea virginica |
1875 |
18th century |
Northwest Atlantic - Brackish and marine waters of Ireland |
aquaculture |
no |
074339 |
13 |
Crepidula convexa |
|
1925-1949 |
New York - San Francisco Bay |
accidental |
|
125669 |
14 |
Crepidula fornicata |
|
1925-1949 |
New York - Washington State |
accidental |
|
125669 |
15 |
Crepidula fornicata |
1902 |
1900-1924 |
Northwest Atlantic - Brackish and marine water areas of Ireland |
aquaculture |
no |
074339 |
16 |
Crepidula plana |
|
1925-1949 |
New York - Western USA |
accidental |
|
125669 |
17 |
Ectopleura crocea |
1865 |
18th century |
Northwest Atlantic. - San Diego Bay California |
accidental with ships |
yes |
007836 |
18 |
Ensis directus |
1989 |
1975-present |
Atlantic coasts of North America. - Home Beach, Norfolk. |
ballast water |
yes |
001314 |
19 |
Eusarsiella zostericola |
|
18th century |
East coast of USA - Estuaries in England |
accidental |
probably yes |
001314 |
20 |
Faxonius limosus |
1890 |
18th century |
Northeast America. - Inland waters. |
fill ecological niche |
Unknown |
003700 |
21 |
Gammarus tigrinus |
1931 |
1925-1949 |
Western North Atlantic - Britain |
ballast water |
Unknown |
003224 |
22 |
Gammarus tigrinus |
1957 |
1950-1974 |
Northwest Atlantic. - Inland waters |
fill ecological niche |
Unknown |
003700 |
23 |
Gemma gemma |
|
1925-1949 |
New York - San Francisco Bay |
accidental |
|
125669 |
24 |
Geukensia demissa |
|
1925-1949 |
New York - San Francisco Bay |
accidental |
|
125669 |
25 |
Gonionemus vertens |
1947 |
1925-1949 |
North America. - North Sea. |
accidental with ships |
Unknown |
003700 |
26 |
Ilyanassa obsoleta |
|
1925-1949 |
New York - Western USA |
accidental |
|
125669 |
27 |
Limulus polyphemus |
1866 |
18th century |
Northwest Atlantic - North Sea |
ornamental |
Unknown |
003700 |
28 |
Macoma balthica |
|
1925-1949 |
New York - San Francisco Bay |
accidental |
|
125669 |
29 |
Magallana gigas |
1965 |
1950-1974 |
Canada - Wales. |
other reasons |
Unknown |
007794 |
30 |
Marenzelleria viridis |
1983 |
1975-present |
Northwest Atlantic. - North Sea. |
ballast water |
Unknown |
003700 |
31 |
Mercenaria mercenaria |
1965 |
1950-1974 |
USA - Netherlands |
other reasons |
Unknown |
007794 |
32 |
Mercenaria mercenaria |
1969 |
1950-1974 |
Northwest Atlantic - Marine waters of Ireland |
aquaculture |
unknown |
074339 |
33 |
Molgula manhattensis |
1998 |
1975-present |
Northwest Atlantic - Marine waters of Ireland |
unknown |
probably yes |
074339 |
34 |
Mya arenaria |
1200 |
Pre 18th century |
Northwest Atlantic. - Baltic Sea. |
accidental with ships |
Unknown |
003700 |
35 |
Mya arenaria |
1500 |
Pre 18th century |
USA - Scandinavia. |
aquaculture |
Unknown |
007794 |
36 |
Mya arenaria |
1600 |
Pre 18th century |
North America including Mexico. - England. |
bait |
yes |
001314 |
37 |
Myosotella myosotis |
|
1925-1949 |
New York - Western USA |
accidental |
|
000000 |
38 |
Mytilopsis leucophaeata |
1996 |
18th century |
North America including Mexico. - Cardiff Docks, Bristol Channel. |
unknown |
yes |
000000 |
39 |
Petricola pholadiformis |
1890 |
18th century |
North America. - River Crouch, Essex. |
accidental |
yes |
001314 |
40 |
Petricola pholadiformis |
1896 |
1925-1949 |
Northwest Atlantic. - North Sea. |
aquaculture |
Unknown |
003700 |
41 |
Petricolaria pholadiformis |
|
1925-1949 |
New York - Essex County |
accidental |
|
125669 |
42 |
Petricolaria pholadiformis |
|
1925-1949 |
New York - Western USA |
accidental |
|
125669 |
43 |
Polydora cornuta |
|
1950-1974 |
Western North Atlantic - Tampa Bay, Florida |
accidental |
Unknown |
003224 |
44 |
Rhithropanopeus harrisii |
1874 |
18th century |
Western North Atlantic - Netherlands |
ballast water |
Unknown |
003224 |
45 |
Rhithropanopeus harrisii |
1936 |
1925-1949 |
Northwest Atlantic. - Baltic Sea. |
accidental with ships |
Unknown |
003700 |
46 |
Rhithropanopeus harrisii |
1937 |
1925-1949 |
Western North Atlantic - San Frnacisco Bay, California |
biofouling |
Unknown |
003224 |
47 |
Rhithropanopeus harrisii |
1996 |
19th century |
North America - Cardiff Docks. |
accidental with ships |
probably yes |
001314 |
48 |
Urosalpinx cinerea |
|
1925-1949 |
New York - Western USA |
accidental |
yes |
125669 |
49 |
Urosalpinx cinerea |
1927 |
19th century |
North America including Mexico. - Essex. |
accidental |
yes |
001314 |