Invasion

Invasion Description

1st record: OR/Netarts Bay (Stout 1976, cited by Carlton 1979)

Geographic Extent

WA/Willapa Bay (1996, Ferraro and Cole 2007); OR/Netarts Bay (Stout 1976, cited by Carlton 1979); OR/Coos Bay (Chapman et al. 2011); CA/Humboldt Bay (2000); CA/Humboldt Bay, Mad River Slough, low intertidal mud under Samoa Bridge and near mouth of Elk River, benthic stations in Mad River Slough Channel (2000, Boyd et al. 2002)