Invasion
Invasion Description
1st Record? San Diego County/CA/Aqua Hedionda Lagoon (2000, Cohen et al. 2002)
Geographic Extent
Snug Harbor Marina/San Diego County/CA/Aqua Hedionda Lagoon (2000, Cohen et al. 2002, ongoing aquaculture; Conte 1992; California Department of Fish and Game 2010)
Vectors
| Level | Vector |
|---|---|
| Probable | Hull Fouling |
Regional Impacts
| Ecological Impact | Competition | |
| Competition with, and nearly complete replacement of, native M. trossulus occurred in southern California waters, possibly in the 1940s (Carlton 1979; McDonald et al. 1991; Suchanek et al. 1997). | ||
| Ecological Impact | Hybridization | |
| Hybridization between M. galloprovincialis and M. trossulus was probably widespread during the early invasion and replacement of M. trossulus. See the discussion of the bioregion for details. | ||