Invasion
Invasion Description
1st Records: Dana Landing, San Diego/CA/Mission Bay (1994, Lambert and Lambert 2003); Bahia Point, San Diego/CA/Mission Bay (1994, Lambert and Lambert 2003)
Geographic Extent
Quivera Basin, San Diego/CA/Mission Bay (1995, 1996, 1998, Lambert and Lambert 2003; 2011, California Department of Fish and Wildlife 2014); Dana Landing, San Diego/CA/Mission Bay (1994, 1997 Lambert and Lambert 2003); South Shores Boat Ramp, San Diego/CA/Mission Bay (1997, 1998, Lambert and Lambert 2003; 2012, Tracy and Reyns 2014); Bahia Point, San Diego/CA/Mission Bay (1994, 1995, 1996, 1997, 1998, Lambert and Lambert 2003); Mission Bay Yacht Club, San Diego/CA/Mission Bay (1997, 1998, Lambert and Lambert 2003; 2012, Tracy and Reyns 2014)); Santa Clara Boat Launch, San Diego/CA/Mission Bay (1997, 1998, Lambert and Lambert 2003); Seaforth Marina, San Diego/CA/Mission Bay (2003, de Rivera et al. 2005a; 2012, Tracy and Reyns 2014; (2013, Obaza amd Williams 2018); South Shores Boat Ramp, Sam Diego/CA/Mission Bay (2019, Nichols et al. 2023)
Vectors
| Level | Vector |
|---|---|
| Probable | None |
Regional Impacts
| Ecological Impact | Competition | |
| Polyandrocarpa zorritensis formed 100% cover in several locations in San Diego and Mission Bays in 1994-2000, suggestive of competition (Lambert and Lambert 2003). | ||