| Year / Period | From | To | Established | Ecological effects |
|---|---|---|---|---|
| unknown | Unknown | Canada | unknown | unknown |
| unknown | Unknown | USA | unknown | unknown |
| 1992 - 1995 | Northwestern Gulf of Mexico | Tampico and Veracruz | yes | |
| 1986 | Atlantic both sides | United States of America | yes | unknown |
| 1990 | Atlantic, Southwest | United States of America | yes | unknown |
| 1990 | Unknown | Texas, Gulf of Mexico | probably yes |