| Year / Period | From | To | Established | Ecological effects |
|---|---|---|---|---|
| 1892 | West Pacific | East coast of North America | yes | unknown |
| 1974 | Northwest Pacific | Marine and brackish waters of Ireland | probably yes | unknown |
| 1999 | Western Pacific (Japan, China and Hong Kong). | South shore of Kaneohe Bay. | unknown | unknown |
| 2009 | unknown | New Brunswick | yes |