Invasion

Invasion Description

1st Record: Point Richmond/CA/San Francisco Bay (1953, Kornicker 1975; Carlton 1979)

Geographic Extent

Vallejo Marine Teminal Site/CA/Mare Island Strait (2014; Applied Marine Sciences 2014, 38.081778N, -122.246817W); San Pablo Bay Pumphouse//CA/San Pablo Bay (2005, Foss 2009); Hercules Wharf/CA/San Pablo Bay (2005, Foss 2009); Point Richmond/CA/San Francisco Bay (1953, Kornicker 1975; Carlton 1979); Sausalito/CA/Ayala Cove (2005, Foss 2009);; San Francisco Bay ("widely distributed") (Cohen and Carlton 1995)