Invasion
Invasion Description
1st Record: WA/Willapa Bay (1874, Washburn 1896, cited by Carlton 1979)
Geographic Extent
WA/Willapa Bay (1874, Washburn 1896, cited by Carlton 1979, additonal plantings to 1914, one small reproducing population persisted in the Naselle River to the 1970s, Carlton 1979)
Vectors
| Level | Vector |
|---|---|
| Probable | Oyster Intentional |
Regional Impacts
| Ecological Impact | Parasite/Predator Vector | |
| While C. virginica has not become established in Willapa Bay, Eastern Oyster introductions have been a probable/possible vector for many fouling organisms and predators including sponges, polychaetes (Streblospio benedicti), slippershells (C. plana), Atlantic Oyster Drill (Urosalpinx cinerea), and tunicates (Botryllus schlosseri, Molgula manhattensis) (Carlton 1979; Cohen et al. 2001; Wonham and Carlton 2005). | ||