| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | Japan |
| FAO area | Pacific, Northwest |
| From | United States of America |
| FAO area | |
| Year | 1909 |
| Range | |
| Period | 1900-1924 |
| Established in the Wild | probably yes, self reproducing |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | unknown |
| Other Reason | |
| Comments | Present in Pond Takai in Shiga Pref. The subspecies Pacifastacus leniusculus trowbridgii is signalled in Lake Mashu in Hokkaido. |