Invasion

Invasion Description

1st Record: CA/Napa River (San Francisco Bay) (1970, Mills and Sommer 1995; Cohen and Carlton 1995; Mills and Rees 2000)

Geographic Extent

CA/Napa and Petaluma Rivers (San Francisco Bay) (Mills and Sommer 1995; Cohen and Carlton 1995; Mills and Rees 2000; Wintzer et al. 2013); CA/Napa River (2007-2008, Wintzer et al. 2011; Wintzer et al. 2013); CA/Petaluma River (2007-2008, Wintzer et al. 2011; Wintzer et al. 2013); CA/Suisun Marsh (2004-2006, Schroeter 2008; 2004-2005, Baumsteiger et al. 2018, 0.1-0.5 m-3; 5.6-10.3 PSU); San Rafael to the outer portions of the Carquinez Strait around Benicia/CA/San Francisco Bay (Chang 2009)