| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | Canada |
| FAO area | |
| From | Europe |
| FAO area | |
| Year | 1965 |
| Range | |
| Period | 1950-1974 |
| Established in the Wild | yes |
| Established in Aquaculture | |
| Significant Ecological Interactions | unknown - adverse |
| Significant Socio-economic Effects | |
| Introduced by | unknown |
| Reason | ballast water |
| Other Reason | |
| Comments | The native range of Bythotrephes cederstroemi is the northern and central Palearctic (northern Europe to Caspian Sea). It may be a ballast water introduction but it is not known for certain since most ocean-going ships do not carry fresh water in ballast. |