Invasion
Invasion Description
1st Record: just S of Orick/CA/Freshwater Lagoon (2008, USGS Nonindigenous Aquatic Species Program 2009)
Geographic Extent
just S of Orick/CA/Freshwater Lagoon (2008, USGS Nonindigenous Aquatic Species Program 2009); CA/Big Lagoon (9/2008, Hellmair et al. 2011); Humboldt County/CA/Stone Lagoon (5/7/2011, USGS Nonindigenous Aquatic Species Program)
Vectors
| Level | Vector |
|---|---|
| Alternate | Fisheries Accidental (not Oyster) |
| Alternate | Natural Dispersal |
Regional Impacts
| Ecological Impact | Food/Prey | |
| Potamopyrgus antipodarum has become a frequent food item for the Tidewater Goby (Eucyclogobius newberryi), an endangered fish of California coastal streams and lagoons (Hellmair et al. 2011). | ||