| Main Ref. | Hill, M., R. Baker, G. Broad, P.J. Chandler, G.H. Coop, J. Ellis, D. Jones, C. Hoyland, I. Laing, M. Longshaw, N. Moore, D. Parrott, D. Pearman, C. Preston, R.M. Smith and R. Waters, 2005 |
| To | Plymouth |
| FAO area | Atlantic, Northeast |
| From | Unknown |
| FAO area | |
| Year | 1999 |
| Range | |
| Period | 1975-present |
| Established in the Wild | probably yes |
| Established in Aquaculture | |
| Significant Ecological Interactions | Unknown |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | unknown |
| Other Reason | |
| Comments | Persisting in the wild but does not reproduce effectively. Ref. Hill, M., R. Baker, G. Broad, P.J. Chandler, G.H. Coop, J. Ellis, D. Jones, C. Hoyland, I. Laing, M. Longshaw, N. Moore, D. Parrott, D. Pearman, C. Preston, R.M. Smith and R. Waters, 2005 |