Invasion

Invasion Description

1st Record: Contra Costa County/CA/Big Break, North side near Dutch Slough (11/9/2017, USGS Nonindigenous Aquatic Species Program 2017)

Geographic Extent

Contra Costa County/CA/Big Break, North side near Dutch Slough (11/9/2017, USGS Nonindigenous Aquatic Species Program 2017); Town of French Camp-San Joaquin River 2021, USGS Nonindigenous Aquatic Species Program 2017))