| Main Ref. | Abrahamsson, S.A.A., 1966 |
| To | Rögle (Skäne) |
| FAO area | Europe - Inland waters |
| From | Unspecified |
| FAO area | Europe - Inland waters |
| Year | 1920 |
| Range | |
| Period | 1900-1924 |
| Established in the Wild | yes |
| Established in Aquaculture | |
| Significant Ecological Interactions | |
| Significant Socio-economic Effects | |
| Introduced by | |
| Reason | other pest control |
| Other Reason | |
| Comments | Habitat: artificial ponds serving as water reservoirs constructed between 1869-1901; max depth 3 m, total surface area 200,000 sq. m. Upper littoral zone of ponds with stony bottom, lower littoral zone with smooth soft bottom; upper littoral habitat of vegetation and small invertebrates which comprise main diet of crayfish. Transplantations made to reduce large numbers of tadpoles. |