Invasion

Invasion Description

1st Record: Colusa and Butte Counties/CA/Sacramento River (1905, Dill and Cordone 1997)

Geographic Extent

CA/Sacramento-San Joaquin Delta (Cohen and Carlton 1995; Dill and Cordone 1997; Brown and Michniuk 2007; Grimaldo et al. 2012); Walnut Grove/CA/North Fork Mokelumne River (Cavallo et al. 2012); CA/Suisun Marsh (Matern et al. 2002); CA/Sacramento-San Joaquin Delta (2008-2010, Conrad et al. 2016, Huntsman et al. 2022, 0-3 PSU, strongly associated with total submerged aquaticvegetation biomass (SVA), and Egeria densa)