| Main Ref. | Carver, C.E., A.L. Mallet and B. Vercaemer, 2006 |
| To | Grand Manan Island |
| FAO area | Atlantic, Northwest |
| From | unknown |
| FAO area | |
| Year | 1852 |
| Range | |
| Period | 19th century |
| Established in the Wild | unknown |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | unknown |
| Other Reason | |
| Comments | Considered cryptogenic but most likely introduced from northern Europe. Year is based on publication record. |