| 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 | Cardiff Docks. |
| FAO area | Atlantic, Northeast |
| From | North America |
| FAO area | Atlantic, Northwest |
| Year | 1996 |
| Range | |
| Period | 19th century |
| Established in the Wild | probably yes, continuous stocking |
| Established in Aquaculture | |
| Significant Ecological Interactions | Unknown |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | accidental with ships |
| Other Reason | |
| Comments | Casual taxa dependent on repeated introduction. 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 |