| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | Tonga |
| FAO area | |
| From | unknown |
| FAO area | |
| Year | 1976 |
| Range | |
| Period | 1975-present |
| Established in the Wild | unknown |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | aquaculture |
| Other Reason | |
| Comments | Eldredge 1994. in 1976 some were under cultivation, but no production now reported. |