Invasion

Invasion Description

1st Record: Fruitvale Bridge, Oakland/CA/Oakland Estuary (1940, Hand 1956, cited by Carlton 1979)

Geographic Extent

Fruitvale Bridge, Oakland/CA/Oakland Estuary (1940, Hand 1956, cited by Carlton 1979); Berkeley Aquatic Park (1947, USNM 52345, United States National Museum of Natural History 2012); Oakland/CA/Lake Merritt (1973, Carlton 1979); Sierra Point Marina/CA/South San Francisco Bay (2004, Cohen et al. 2005); San Leandro Marina/CA/South San Francisco Bay (2004, Cohen et al. 2005); Presidio Yacht Club/San Francisco/CA/Golden Gate (2004, Cohen et al. 2005); Peninsula Point/CA/central San Francisco Bay (1976, CAS-IZ 1917, California Academy of Sciences 2012); Richmond Marina/CA/San Francisco Bay (2004, Cohen et al. 2005); Port San Pablo Marina/CA/San Pablo Bay (2004, Cohen et al. 2005); Pete's Harbor/CA/South San Francisco Bay (2004, Cohen et al. 2005)