| Reference no. | Dauvin, J.C., T. Ruellet, T. Thiebaut, F. Gentil, N. Desroy, A.L. Janson, S. Duhamel, J. Jourde and N. Simon, 2007 |
| Ecosystem | Lusitanian |
| Status | introduced |
| Abundance | common (usually seen) |
| Lifestage | adults |
| Regional database | |
| Remarks | Introduction may be accidental via ballast waters or by larval dissemination from neighboring populations. Colonization likely to be related to its southwest expansion from the Scheldt estuary (Belgium and Netherlands). Also in Ref. 96507. O: Ref. 9650 |