Invasion

Invasion Description

1st Record: CA/Humboldt Bay (1965, Dawson 1965, cited by Boyd et al. 2002)

Geographic Extent

CA/Humboldt Bay (1965, Dawson 1965, cited by Boyd et al. 2002; 2011, California Department of Fish and Wildlife 2014); low intertidal and shallow subtidal riprap near the entrance/CA/Humboldt Bay (2000, Boyd et al. 2002); at a brackish water site/CA/Elk River, Humboldt Bay (2000, Boyd et al. 2002); several shallow subtidal sites/CA/Arcata Bay (2000, Boyd et al. 2002)