| Year / Period | From | To | Established | Ecological effects |
|---|---|---|---|---|
| unknown | United States of America | France | yes | unknown |
| unknown | United States of America | Germany | yes | unknown |
| 1835 | United States of America | Belgium | yes | unknown |
| 1895 | United States of America | Netherlands | yes | unknown |
| 1937 | West Atlantic | East coast of North America | yes | unknown |
| 1996 | United States of America | United Kingdom | yes | unknown |
| 1996 | North America including Mexico. | Cardiff Docks, Bristol Channel. | yes | unknown |