Species Regional Summary
Crassostrea virginica
Willapa Bay ( P270 )

Invasion History Vectors Impacts References

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 ImpactParasite/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).
 

References

Full Reference List for Crassostrea virginica

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