| Year / Period | From | To | Established | Ecological effects |
|---|---|---|---|---|
| 1979 | Atlantic, Northwest | Germany | yes | unknown |
| 1981 | Atlantic, Northwest | Denmark | yes | unknown |
| 1982 | Atlantic, Northwest | Netherlands | yes | unknown |
| 1982 | Atlantic, Northwest | Sweden | yes | unknown |
| 1984 | Atlantic, Northwest | Belgium | yes | unknown |
| 1986 | Atlantic, Northwest | France | yes | unknown |
| 1989 | United States of America | Norway | yes | yes |
| 1989 | Atlantic, Northwest | United Kingdom | yes | unknown |