Invasion

Invasion Description

1st Record: Oakland/CA/Lake Merritt (1929, Mariscal 1965; Cohen and Carlton 1995; Wasson 1997a; Wasson 1997b)

Geographic Extent

Oakland/CA/Lake Merritt (1929, 1956, 1971, 1993, Mariscal 1965; Cohen and Carlton 1995; Wasson 1997a; Wasson 1997b); Palo Alto/CA/Palo Alto Yacht Harbor, San Francisco Bay (1956, Wasson 1997b); Martinez/CA/Carquinez Straits (2005, Foss 2009); Benicia Waterfront/CA/San Franicsco Bay (2005, Foss 2009); Dumbarton Bridge/CA/South San Francisco Bay (2005, Foss 2009)