Invasion

Invasion Description

1st record: Westport Marina/WA/Grays Harbor (1972, McCain and Ross 1973)

Geographic Extent

Westport Marina/WA/Grays Harbor (1972, McCain and Ross 1974); Coos Bay/OR/Charlestown Boat Basin (1989, Carlton 1989; de Rivera et al. 2005; Wonham et al. 2005); Fossil Point Jetty/OR/Coos Bay (Carlton 1989; Wonham et al. 2005); CA/North Bay Channel (2000, Boyd et al. 2002); CA/Arcata Bay, Humboldt Bay (2000, Boyd et al. 2002)