| Main Ref. | Carver, C.E., A.L. Mallet and B. Vercaemer, 2006 |
| To | Montague |
| FAO area | Indian Ocean, Antarctic |
| From | unknown |
| FAO area | |
| Year | 2004 |
| Range | |
| Period | 1975-present |
| Established in the Wild | probably yes |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | unknown |
| Other Reason | |
| Comments | Suspected population outbreak occuring in Prince Edward Island estuaries since its first record in October 2004 at Montague. |