Invasion

Invasion Description

1st Record: WA/Willapa Bay (Powell et al. 1970, cited by Carlton 1979)

Geographic Extent

WA/Grays Harbor (1974, McCain and Ross 1974, cited by Carlton 1979); WA/Willapa Bay (Powell et al. 1970, cited by Carlton 1979; 1977, Carlton 1979, but not reported by Cohen et al. 2001); Charleston/OR/Charleston Boat Basin, Coos Bay (1986, Carlton 1989, 2003, de Rivera et al. 2005); Empire Pier/OR/Coos Bay ( 2003, de Rivera et al. 2005); Valino Island/OR/South Slough, Coos Bay (2003, de Rivera et al. 2005); SERC plates/OR/Coos Bay (as S. japonica, Dick 2005); CA/Humboldt Bay (1992, Barnhart et al. 1992, cited by Boyd et al. 2002); CA/(Arcata Bay (2000, Boyd et al. 2002) CA/South Bay) Humboldt Bay (2000, Boyd et al. 2002)