Invasion
Invasion Description
1st Record: Savona/Italy/Mediterranean Sea (1971; Monniot 1981, Mastrototaro and Dappiano 2005)
Geographic Extent
Alicante/Spain/Mediterranean Sea (1988, Turon et al. 2007); Valencia/Spain/Mediterranean Sea (1988, Turon et al. 2007); Barcelona/Spain/Mediterranean Sea (1988, Turon et al. 2007); Plama/Balearic Islands/Spain/Mediterranean Sea (1988, Turon et al. 2007); Nice/France/Mediterranean Sea (1979, Mastrototaro and Dappiano 2005); Savona/Italy/Mediterranean Sea (1971; Monniot 1981, Mastrototaro and Dappiano 2005); Imperia/Italy (1981; Mastrototaro and Dappiano 2005); Italy/Magra River estuary (1987; Mastrototaro and Dappiano 2005);
Vectors
| Level | Vector |
|---|---|
| Probable | Hull Fouling |
Regional Impacts
| Ecological Impact | Competition | |
| 'The ability of M. squamiger to form dense, monospecific crusts that outcompete native species in shallow water communities (authors' personal observation) indicates that it is a potential threat to Mediterranean littoral communities and deserves further monitoring' (Turon et al. 2007). | ||