Invasion
Invasion Description
1st record: Arcachon/France/Bay of Arcachon (1969, de Montadouin et al. 2001)
Geographic Extent
Arcachon/France/Bay of Arcachon (1969, de Montadouin et al. 2001, biomass comparatively small to other oyster-culture estuaries); Figueras/Spain/Bay of Biscay (Miralles et al. 2016); Galicia/Spain/Ria de Aldan; (1977, Blanchard 1997); Galicia/Spain/Ria de Vigo (Blanchard 1997); Galicia/Spain/Ria de Arousa (Blanchard 1997)
Vectors
| Level | Vector |
|---|---|
| Probable | Oyster Accidental |
Regional Impacts
| Ecological Impact | Habitat Change | |
| In experiments, in the Bay of Arcachon, France, the addition of Crepidula fornicata to oyster aquaculture beds did not affect growth of Pacific Oysters (Crassostrea gigas) or the abundance or diversity of the associated benthos, but the species composition of the benthos was altered, due to the increase in hard substrate (de Montaudouin et al. 1999). | ||