| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | Belgium |
| FAO area | Atlantic, Northeast |
| From | Netherlands |
| FAO area | |
| Year | 1932 |
| Range | |
| Period | 1925-1949 |
| Established in the Wild | yes, self reproducing |
| Established in Aquaculture | |
| Significant Ecological Interactions | |
| Significant Socio-economic Effects | |
| Introduced by | other introducer |
| Reason | unknown |
| Other Reason | diffused from other countries |
| Comments | Diffusion through natural waterways. |