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))
Vectors
| Level | Vector |
|---|---|
| Alternate | Pet Release |
| Alternate | Agricultural Weed |
| Alternate | Aquatic Plant Shipments |