| Main Ref. | Bartley, D.M. (comp./ed.), 2006 |
| To | Portugal |
| FAO area | Atlantic, Northeast |
| From | France |
| FAO area | |
| Year | 1977 |
| Range | |
| Period | 1975-present |
| Established in the Wild | probably yes, both |
| Established in Aquaculture | widely used |
| Significant Ecological Interactions | probably yes - undecided |
| Significant Socio-economic Effects | |
| Introduced by | private sector |
| Reason | aquaculture |
| Other Reason | |
| Comments | One risk of this introduction is the eventual changes induced on the genetic pool of native species "Crassostrea angulata", through a persistent cross breeding process. |