| Main Ref. | Imanpour Namin, J., E. Nami and S. Heidary, 2014 |
| To | Anzali Lagoon |
| FAO area | Asia - Inland waters |
| From | unknown |
| FAO area | |
| Year | 2008 |
| Range | |
| Period | 1975-present |
| Established in the Wild | yes, self reproducing |
| Established in Aquaculture | |
| Significant Ecological Interactions | yes - adverse |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | accidental |
| Other Reason | |
| Comments | The first observation of Macrobrachium nipponense was in Anzali Lagoon in 2008, and has since spread in water basins of norhtern Iran. Though it is important in aquaculture, M. nipponense has competed with native freshwater crayfish for space and food, causing deteriorated local stocks. |