Invasion
Invasion Description
1st record: Falmouth (Cornwall)/England/English Channel (1944, Blanchard 1997)
Geographic Extent
Start Point (Devon)/England/English Channel (1960, Blanchard 1997; Clark 2008); Falmouth (Cornwall)/England/English Channel (Blanchard 1997; 2010, 2013, Bishop et al. 2015b); to Land's End/England/English Channel; to mid-Wales/Irish Sea (Blanchard 1997; Hinz et al. 2011, increased abundance in surveys from 1958-1959, to 2006); Wales/Milford Haven Waterway (1953, Bohn et al. 2012, established, at northern limit in Wales; Bohn et al. 2015, well established); County Kerry/Ireland/Kilmakilloge Harbour (1959, Arnold 1960, not now established ion the West Coast of Ireland)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Natural Dispersal |
| Alternate | Oyster Accidental |
Regional Impacts
| Economic Impact | Fisheries | |
| Extensive fouling of mussels and scallops occurs in estuaries of South Devon, England. Fouling can reduce mussel growth and also increases handling time to clean and sort catches (Clark 2008). | ||