Invasion
Invasion Description
None
Geographic Extent
Sweden/Skaggerak (Strasser 1999); Norway/Oslofjord (Winther and Gray 1985, cited by Strasser 1999; Moller 1986).
Vectors
| Level | Vector |
|---|---|
| Probable | Fisheries Intentional |
Regional Impacts
| Ecological Impact | Competition | |
| In the Gulmarfjord, Sweden, high densities of adult M. arenaria inhibited recruitment of spat of both Cerastoderma edule and M. arenaria . However, in some years, heavy recruitment of C. edule could inhibit M. arenaria recruitment (Moller 1986). | ||