| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | Singapore |
| FAO area | Pacific, Western Central |
| From | unknown |
| FAO area | |
| Year | |
| Range | |
| Period | unknown |
| Established in the Wild | probably no |
| Established in Aquaculture | rarely used |
| Significant Ecological Interactions | probably no |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | aquaculture |
| Other Reason | |
| Comments | Reintroduced for farming. Their escape always causes great concern because of the apparent danger to man and occasional escapes have occurred. |