Invasion

Invasion Description

1st Record: CA/Humboldt Bay (1989, Cohen and Carlton 1995)

Geographic Extent

1st Record: WA/Beardslee Slough, Grays Harbor (1999, Wilson and Partridge 2007); WA/Willapa Bay (1996, Ferraro and Cole 2007, 'bare mud and sand'); OR-WA/Columbia River estuary (Sytsma et al. 2004), OR/Tillamook Bay (2003, Berkenbusch and Rowden 2007); OR/Netarts Bay (2003, Berkenbusch and Rowden 2007); OR/Yaquina Bay (2003, Berkenbusch and Rowden 2007); Coos Bay/OR/Isthmus Slough (1989, Carlton 1989); Point St. George/CA/Pacific Ocean (2004, Maloney et al. 2006); CA/Humboldt Bay (1989, Cohen and Carlton 1995); (1989); Bracton/CA/Mad River Slough (Humboldt Bay) (2000, Boyd et al. 2002); CA/Klopp Lake (Humboldt Bay) (Boyd et al. 2002; Wonham et al. 2005);