Year / Period | From | To | Established | Ecological effects |
---|---|---|---|---|
unknown | unknown | British Columbia | unknown | unknown |
unknown | Japan | France | no | unknown |
1984 - 1985 | Japan | Canada | probably no | unknown |
1981 | Japan | China | unknown | |
1985 | Japan | Denmark. | unknown | unknown |
1987 | Japan | France | unknown | unknown |
1988 | Northwest Pacific | Marine waters of Ireland | no | unknown |
1990 | unknown | Ireland | unknown | unknown |