Invasion

Invasion Description

1st Record: between Jersey Island and Browns Island/CA/Sacramento-San Joaquin Delta (8/1977, Bowman and Orsi 1992; Cohen and Carlton 1995)

Geographic Extent

CA/Old River, Sacramento-San Joaquin Delta to San Pablo Bay (Bowman and Orsi 1992; Cohen and Carlton 1995); China Camp marshes/CA/San Pablo Bay (2002, Dean et al. 2005)