Invasion

Invasion Description

1st record: Olympia/WA/Puget Sound (1959, Rice 1971, cited by Carlton 1979); Not established: WA/Samish Bay (Puget Sound) (1924, Kincaid 1947, cited by Carlton 1979, 'on planted beds of oysters', not collected later at this site)

Geographic Extent

British Columbia/Strait of Georgia (1995, GBIF 2019, 49.95, -124.866667); Vancouver Island/British Columbia/Nootka Sound (2007, GBIF 2019, 49.493107, -126.743774); Vancouver Island/British Columbia/Barkley Sound (2006, Gillespie 2007; Gillespie et al. 2007); Vancouver Island/British Columbia/Desolation Sound (2006, Gillespie 2007; Gillespie et al. 2007); British Columbia/Straits of Georgia (1990s, Gillespie 2007; Gillespie et al. 2007); WA/Samish Bay (Puget Sound) (1924, Kincaid 1947, not established, cited by Carlton 1979, 'on planted beds of oysters, not collected again at this site'); Olympia/WA/Puget Sound (1959, Rice 1971, cited by Carlton 1979); Brinnon/WA/Dosewallips Flats, Hood Canal (1977, Carlton 1979); Oak Bay State Park, marsh on north side of road, near Hadlock/WA/Puget Sound (2009, USGS Nonindigenous Aquatic Species Program 2009)