| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | United Kingdom |
| FAO area | Atlantic, Northeast |
| From | United States of America |
| FAO area | |
| Year | 1967 |
| Range | |
| Period | 1950-1974 |
| Established in the Wild | yes |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown - undecided |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | unknown |
| Other Reason | |
| Comments | Joint Nature Conservation Committee. Possible displacement of native species, but likely to be insignificant. |