SeaLifeBase
Introduced from: Atlantic, Northwest to: Atlantic, Northeast

n=26 | Species introduction records list
 
# Species Year Period From - To Reason Established in the wild Ref. no.
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 Callinectes sapidus  1964 1950-1974 Northwest Atlantic. - North Sea.  accidental with ships  Unknown 003700
4 Clymenella torquata  2006 1975-present Northwest Atlantic - Marine waters of Ireland  aquaculture  yes 074339
5 Crassostrea virginica  1875 18th century Northwest Atlantic - Brackish and marine waters of Ireland  aquaculture  no 074339
6 Crepidula fornicata  1902 1900-1924 Northwest Atlantic - Brackish and marine water areas of Ireland  aquaculture  no 074339
7 Ensis directus  1989 1975-present Atlantic coasts of North America. - Home Beach, Norfolk.  ballast water  yes 001314
8 Eusarsiella zostericola   18th century East coast of USA - Estuaries in England  accidental  probably yes 001314
9 Gonionemus vertens  1947 1925-1949 North America. - North Sea.  accidental with ships  Unknown 003700
10 Limulus polyphemus  1866 18th century Northwest Atlantic - North Sea  ornamental  Unknown 003700
11 Magallana gigas  1965 1950-1974 Canada - Wales.  other reasons  Unknown 007794
12 Marenzelleria viridis  1983 1975-present Northwest Atlantic. - North Sea.  ballast water  Unknown 003700
13 Mercenaria mercenaria  1965 1950-1974 USA - Netherlands  other reasons  Unknown 007794
14 Mercenaria mercenaria  1969 1950-1974 Northwest Atlantic - Marine waters of Ireland  aquaculture  unknown 074339
15 Molgula manhattensis  1998 1975-present Northwest Atlantic - Marine waters of Ireland  unknown  probably yes 074339
16 Mya arenaria  1200 Pre 18th century Northwest Atlantic. - Baltic Sea.  accidental with ships  Unknown 003700
17 Mya arenaria  1500 Pre 18th century USA - Scandinavia.  aquaculture  Unknown 007794
18 Mya arenaria  1600 Pre 18th century North America including Mexico. - England.  bait  yes 001314
19 Mytilopsis leucophaeata  1996 18th century North America including Mexico. - Cardiff Docks, Bristol Channel.  unknown  yes 000000
20 Petricola pholadiformis  1890 18th century North America. - River Crouch, Essex.  accidental  yes 001314
21 Petricola pholadiformis  1896 1925-1949 Northwest Atlantic. - North Sea.  aquaculture  Unknown 003700
22 Petricolaria pholadiformis   1925-1949 New York - Essex County  accidental   125669
23 Rhithropanopeus harrisii  1874 18th century Western North Atlantic - Netherlands  ballast water  Unknown 003224
24 Rhithropanopeus harrisii  1936 1925-1949 Northwest Atlantic. - Baltic Sea.  accidental with ships  Unknown 003700
25 Rhithropanopeus harrisii  1996 19th century North America - Cardiff Docks.  accidental with ships  probably yes 001314
26 Urosalpinx cinerea  1927 19th century North America including Mexico. - Essex.  accidental  yes 001314
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