| Main Ref. | Gollasch, S. and S. Nehring, 2006 |
| To | North Sea. |
| FAO area | Atlantic, Northeast |
| From | Unclear. |
| FAO area | |
| Year | 1972 |
| Range | |
| Period | 1950-1974 |
| Established in the Wild | Unknown |
| Established in Aquaculture | |
| Significant Ecological Interactions | Unknown |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | aquaculture |
| Other Reason | |
| Comments | Possibly unintentionally introduced in aquaculture. |