Invasion

Invasion Description

1st Record: CA/Sacramento-San Joaquin Delta (1988, Cohen and Carlton 1995)

Geographic Extent

CA/Sacramento-San Joaquin Delta (1988, Cohen and Carlton 1995); CA/San Joaquin River, Delta (USNM 858096, US National Museum of Natural History 2009, undated); CA/Old River (Peterson and Vayssieres 2010); CA/Lower Sacramento River (Peterson and Vayssieres 2010); Franks Tract/CA/Boyd's Harbor, Sacramento-San Joaquin Delta (2005, USGS Nonindigenous Aquatic Species Program 2013); Brentwood/CA/Discovery Bay/Indian Slough, Sacramento-San Joaquin Delta (2005, USGS Nonindigenous Aquatic Species Program 2013); Willow Berm Marina (Brannan Island- Mokelumne)/CA/Sacramento-San Joaquin Delta (2005, USGS Nonindigenous Aquatic Species Program 2013)