Invasion
Invasion Description
1st Record: Netarts/OR/Netarts Bay (1934, Squire 1972, cited by Carlton 1979)
Geographic Extent
WA/Willapa Bay (1939, Hanna 1966, cited by Carlton 1979); found in 13 of 20 sites sampled in Willapa Bay, Ruesink 2013f; Netarts/OR/Netarts Bay (1934, Squire 1972, cited by Carlton 1979); WA/Stackpole Slough, Willapa Bay (2000, Cohen et al. 2001); CA/Humboldt Bay (2007, Mello, personal communication; Eberle, personal communication,; Carlton, personal communication, establishment unknown)
Vectors
| Level | Vector |
|---|---|
| Probable | Oyster Accidental |
Regional Impacts
| Economic Impact | Fisheries | |
| The Japanese Oyster Drill is a pest of cultured Pacific oysters, especially seed oysters in Willapa Bay (Buhle and Ruesink 2009) | ||
| Ecological Impact | Predation | |
| Ocinebrellus inornata is a predator on introduced Pacific (Crassostrea gigas) and native Olympia Oysters (O. lurida) in Willapa Bay, preferring the former in feeding experiments (Buhle and Ruesink 2009). | ||