Invasion

Invasion Description

1st record: OR/Coos Bay (1977, Carlton 1989)

Geographic Extent

WA/Grays Harbor (1999, Lee et al. 2008; Pilgrim et al. 2013); WA/Beardslee Slough, Grays Harbor (1999, Wilson and Partridge 2007); WA/Willapa Bay (1985, Cohen et al. 2001); Palix River Bridge, Stackpole sSough, Round Island/WA/Willapa Bay (2000, Cohen et al. 2001; 999, Wilson and Partridge 2007); OR/WA/Columbia River Estuary (1999, Sytsma et al. 2004); OR/Nehalem Bay (1996, Lee et al. 2008; Pilgrim et al. 2013); OR/Tillamook bay (1996, Lee et al. 2008; Pilgrim et al. 2013); OR/Nestucca Bay (2002, Lee et al. 2008; Pilgrim et al. 2013); OR/Netarts Bay (2002,Lee et al. 2008; Pilgrim et al. 2013); OR/Salmon River (2002, Lee et al. 2008; Pilgrim et al. 2013); OR/Siletz Bay (2002, Lee et al. 2008; Pilgrim et al. 2013);; OR/Yaquina Bay (1994, Lee et al. 2008; Pilgrim et al. 2013); OR/Alsea River (1997,Lee et al. 2008; Pilgrim et al. 2013); OR/Siuslaw River (1999, Lee et al. 2008; Pilgrim et al. 2013); OR/Umpqua River (2001, Lee et al. 2008; Pilgrim et al. 2013); OR/Coos Bay (1977, Carlton 1989); North Bend Airport/OR/Coos Bay (1979, Carlton 1989); OR/South Slough, Coos bay (1982, Carlton 1989); OR/Coquille River (2002, Lee et al. 2008; Pilgrim et al. 2013); OR/Rogue River (2002, Lee et al. 2008; Pilgrim et al. 2013); OR/Rogue River (2002, Lee et al. 2008; Pilgrim et al. 2013); Glasgow/OR/North Coos Bay (1986, Carlton 1989); CA/Klopp Lake, Mad River Sloughs, Jacoby Creek, Southport Landing, Woodley Island Marina (Humboldt Bay, 2000, Boyd et al. 2002; 2011, California Department of Fish and Wildlife 2014)