Invasion

Invasion Description

1st Record: OR/Coos Bay (1977, Hancock et al. 1977, cited by Wonham and Carlton 2005);

Geographic Extent

WA/Grays Harbor (1999, Wilson and Partridge 2007); WA/Beardslee Slough, Grays Harbor (1999, Wilson and Partridge 2007); Palix River Bridge/WA/Willapa Bay (2001 Cohen et al. 2002); Nasselle River Bridge/WA/Willapa Bay (2001, Cohen et al. 2002); Round Island/WA/Willapa Bay (2001, Cohen et al. 2002); ; OR-WA/Columbia River Estuary (1994. Sytsma et al. 2004); Wallooskea/OR/Youngs River [46.1449, -123.8138, Sytsma et al. 2004]; Ilwaco/WA/Columbia River estuary [46.3025, -124.0366, Sytsma et al. 2004]; WA/Lewis and Clark River [46.1352, -123.8722] Systma et al. 2004); 1st Record: OR/Tillamook Bay (1996, Golden et al. 1998, cited by Cohen 2004); OR/Yaquina Bay (1988, Carlton 1989; Castillo et al. 2000); WA/Lewis and Clark River [46.1352, -123.8722] Systma et al. 2004); Reedsport/OR/Umpqua River (1983, Carlton 1989); OR/Coos Bay (1977, Hancock et al. 1977, cited by Wonham and Carlton 2005); North Bend Airport/OR/South Slough, Coos Bay (1979, Carlton 1989)