Invasion

Invasion Description

1st Tidal Record: CA/Sacramento-San Joaquin Delta (1999, Light et al. 2005). 1st Watershed Record: Sacramento County/CA/Alder Creek, tributary of Sacramento River S of Folsom Lake (1963, USGS Nonindigenous Aquatic Species Program 2014)

Geographic Extent

CA/Sacramento-San Joaquin Delta (1999, Light et al. 2005).; CA/North Fork Mokelumne River, Sacramento-San Joaquin Delta (2010, Cavallo et al. 2013); CA/lower tributaries- tidal floodplain Cosumnes River (from 0-561 m, Moyle et al. 2003)