Invasion

Invasion Description

1st Record: Sacramento County/CA/Delta Cross Channel, Walnut Grove, Snodgrass Slough (10/10/2017, USGS Nonindigenous Aquatic Species Program 2018, genetic ID, 15 specimens)

Geographic Extent

Sacramento County/CA/Delta Cross Channel, Walnut Grove, Snodgrass Slough (10/10/2017, USGS Nonindigenous Aquatic Species Program 2018, genetic ID, 15 specimens); 7 Delta Locations, to Decker Island and Sherman Island in the lower Delta (Maharadja et al. 2020)