Invasion

Invasion Description

1st Record: CA/Suisun Marsh (1985, Cohen and Carlton 1995; Dill and Cordone 1997; Matern et al. 1995; Matern 2000; Matern et al. 2002; Center of Aquatic Resource Studies 2009), but probably introduced earlier, confused, with T. trigonocephalus)

Geographic Extent

John Skinner Delta Fish Protective Facility near Byron, Contra Costa County/CA/San Joaquin River (1987, Matern et al. 1995; Center for Aquatic Resource Studies 2009); CA/Sacramento-San Joaquin Delta (1985, Matern et al. 2002; Center for Aquatic Resource Studies 2009); CA/Suisun Marsh (1985, Cohen and Carlton 1995; Dill and Cordone 1997; Matern et al. 1995; Matern 2000; Matern et al. 2002; Center of Aquatic Resource Studies 2009)