Invasion

Invasion Description

1st Record: Coos Bay/OR/South Slough (1950, Barnard 1954, cited by Carlton 1979; Barnard 1965)

Geographic Extent

CA/Klopp Lake, Mad River Sloughs, Elk River Slough, Jacoby Creek, Hookton slough, Eureka Marina) Humboldt Bay (2000, Boyd et al. 2002); CA/Humboldt Bay (2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014)); Coos Bay/OR/South Slough (1950, Barnard 1954, cited by Carlton 1979; Barnard 1965; Carlton 1989; Wonham et al. 2005); Newport/OR/Yaquina Bay (Pilgrim and Darling 2010); Nasselle River Bridge, Palix River Bridge; Port of Bay Center, Stackpole slough, Nahcotta Small Boat Basin/WA/Willapa Bay (Cohen et al. 2000); WA/Beardslee Slough, Grays Harbor (1999, Wilson and Partidge 2007); Grays Harbor/WA/Grays Harbor (Pilgrim and Darling 2010)