Invasion

Invasion Description

1st Record: WA/Willapa Bay (1876, 1882, Stearns 1885, cited by Carlton 1979; Carlton 2023a)

Geographic Extent

WA/Willapa Bay (1876; 1884, Stearns 1885, cited by Carlton 1979); Omeara Point/WA/Willapa Bay (2000, Cohen et al. 2002); Naselle River Bridge/WA/Willapa Bay (2000, Cohen et al. 2002); WA/Upper Palix River, Willapa Bay (2000, Cohen et al. 2002); Palix River Bridge/WA/Willapa Bay (2000, Cohen et al. 2002); WA/Stackpole Slough, Willapa Bay (2000, Cohen et al. 2002)