Invasion
Invasion Description
1st Record: WA/Willapa Bay (2002, Mills et al. 2001)
Geographic Extent
WA/Willapa Bay (2002, Mills et al. 2001); OR-WA/Columbia River estuary mouth (2003, Sytsma et al. 2004); OR/Nehalem Bay (2003, Center for Aquatic Resource Studies 2007); OR/Netarts Bay (2003, Center for Aquatic Resource Studies 2007); OR/Nestuccat Bay (2003, Center for Aquatic Resource Studies 2007); Newport/OR/Yaquina Bay (2003, Center for Aquatic Resource Studies 2007); Waldport/OR/Alsea Bay (2003, Center for Aquatic Resource Studies 2007); OR/Coos Bay (Mills 1998; Center for Aquatic Resource Studies 2007)
Vectors
| Level | Vector |
|---|---|
| Alternate | Natural Dispersal |
| Alternate | Ballast Water |
Regional Impacts
| Economic Impact | Fisheries | |
| Local websites indicate that this clam in harvested recreationally in Oregon Bays: Siletz Bay, (http://culinariaeugenius.wordpress.com/2008/03/09/purple-varnish-clam-digging/), Netarts Bay (http://www.netartsbaytoday.org/html/clams_.html), and Nehalem Bay (http://www.jettyfishery.com/things-to-do/clamming/). | ||