Invasion

Invasion Description

1st Record: Oakland/CA/Lake Merritt (San Francisco Bay) (1967, Carlton 1979, Cohen and Carlton 1995)

Geographic Extent

Oakland/CA/Lake Merritt (San Francisco Bay) (Carlton 1979, Cohen and Carlton 1995); Petaluma/CA/Petaluma River Turning Basin (2004, Cohen et al. 2005); San Francisco Marina/CA/San Francisco Bay (2015, Ruiz and Geller 2018)