Invasion

Invasion Description

1st record: Coos Bay/OR/Coos Bay (1947, Scagel 1956)

Geographic Extent

Cape Alava Rockshelf/WA/Pacific Ocean (2001, deRivera et al. 2005); Destruction Island/WA/Pacific Ocean (2001, deRivera et al. 2005); Norwegian Memorial park/WA/Pacific Ocean (2001, deRivera et al. 2005); WA/Stackpole Slough, Willapa Bay (1953, Scagel 1956; 2000, Cohen et al. 2001); Oysterville/ WA/Willapa Bay (1953, Scagel 1956); WA/Willapa Bay (1953); Yaquina Head/OR/Pacific Ocean (Ed White 2004, http://www.blm.gov/or/resources/recreation/yaquina/files/Yaquina_Intertidal.pdf); Newport/OR/Yaquina Bay (1977, Cohen 2005); Coos Bay/OR/Coos Bay (1947, Scagel 1956); Fossil Point, Bayview/OR/Coos Bay (1978, Carlton 1989); Point Adams Jetty/OR/Coos Bay (1988, Carlton 1989); Cape Arago/OR/North Cove (1978, Carlton 1989); Pacific Ocean ( Crescent City/CA/Crescent Harbor (1963, Norton 1981, Cohen 2005); CA/Humboldt Bay (1965, Dawson 1965, cited by Boyd et al. 2002; 2011, California Department of Fish and Wildlife 2014); low intertidal and shallow subtidal riprap near the entrance/CA/Humboldt Bay (2000, Boyd et al. 2002); at a brackish water site/CA/Elk River, Humboldt Bay (2000, Boyd et al. 2002); several shallow subtidal sites/CA/Arcata Bay (2000, Boyd et al. 2002)