Year / Period | From | To | Established | Ecological effects |
---|---|---|---|---|
unknown | Pacific, Northwest | France | probably yes | unknown |
unknown | Pacific, Northwest | Netherlands | probably yes | unknown |
1987 | Western Pacific | East coast of North America | probably yes | unknown |
1988 | unknown | United States of America | yes | unknown |
2002 | Pacific, Northwest | Croatia | no | unknown |