Invasion

Invasion Description

1st Record: CA/ Humboldt Bay (1931USNM 113887, United States Museum of Natural History 2007; Iverson 1974; Carlton 1979);

Geographic Extent

CA/ Humboldt Bay (1931, USNM 113887, United States Museum of Natural History 2007; Iverson 1974; Carlton 1979); CA/(Klopp Lake, Humboldt Bay (2000, Boyd et al. 2002); CA/Hookton Slough, Humboldt Bay (2000, Boyd et al. 2002); near Arcata/CA/Mad River Sloughs, Humboldt Bay;(2000, Boyd et al. 2002); near Arcata/CA/Jacoby Creek, Humboldt Bay (Boyd et al. 2002)