Invasion

Invasion Description

1st Record: WA/Willapa Bay (Kincaid 1947, cited by Carlton 1979)

Geographic Extent

WA/Willapa Bay (Kincaid 1947, cited by Carlton 1979; Hanna 1966, cited by Carlton 1979); Naselle River Bridge/WA/Willapa Bay (21 May 2000, 46° 26'05 N; 123° 54'08.350 W, Salinity 9 psu, Water temperature 16°C, Cohen et al. 2001); Omeara Point/WA/Willapa Bay (22 May 2000, 46° 24' 10.914 N; 123° 57' 12.399 W, Salinity 20 psu, Water temperature 18°C, Cohen et al. 2001); Round Island/WA/Willapa Bay (22 May 2000, 46° 23' 42.536 N; 123° 57' 32.749 W, No water accessible at low tide, Cohen et al. 2001); Bear River Pilings/WA/Willapa Bay (22 May 2000, 46° 22' 11.559 N; 123° 57' 04.895 W, Salinity 1 psu Water temperature 13°C, Cohen et al. 2001)