Invasion

Invasion Description

1st record: WA/Willapa Bay (Long 1968, among Clathria prolifera on subtidal rocks)

Geographic Extent

WA/Willapa Bay (Long 1968, among Clathria prolifera on subtidal rocks); WA/Willapa Bay (1996, Ferraro and Cole 2007, widespread in Zostera and oyster locations, in the top 10 macrobenthos in both habitats; Naselle River Bridge, Stackpole Slough/WA/Willapa Bay (2000, Cohen et al. 2001; 1999, Wilson and Partridge 2007)