Invasion
Invasion Description
1st record: Berkeley/CA/San Francisco Bay (1932, Hartman 1936, cited by Carlton 1979)
Geographic Extent
Bodega Bay/CA/Bodega Harbor (1936, Hartman 1936, by Carlton 1979; 2011, California Department of Fish and Wildlife 2014); Inverness/CA/Tomales Bay (1936, Hartman 1936, by Carlton 1979; 2011, California Department of Fish and Wildlife 2014); Marin County/CA/Bolinas Lagoon (Light 1969, cited by Carlton 1979); Stege Marsh, Richmond/CA/San Francisco Bay (2010, Zakas and Wares 2012); Berkeley/CA/San Francisco Bay (1932, Hartman 1936, cited by Carlton 1979); Antioch/CA/Suisun Bay (Light 1977); cargo ship 'Florikan'/CA/Suisun Bay (Llanso et al. 2011); Rodeo Marina/CA/San Pablo Bay (2004, Cohen et al. 2005); Pier 39, San Francisco/CA/San Francisco Bay (2004, Cohen et al. 2005); Port San Pablo Yacht Harbor/CA/San Pablo Bay (2004, Cohen et al. 2005); Palo Alto/CA/South San Francisco Bay (1981, Nichols and Thompson 1985); CA/Grizzly Bay (Peterson et al. 2010, dry years); Sherman Island/CA/Sacramento-San Joaquin Delta (Hopkins 1986); CA/Elkhorn Slough (Blake and Woodwick 1975, cited by Carlton 1979); South Marsh Trail/CA/Elkhorn Slough (Wasson et al. 2001); Fresh-Brackish-Estuarine transition (Sacramento-River-Suisun-San Pablo, mean salinity 4.9 PSU) to Marine-Muddy (Central and South Bay, mean salinity 27.5 PSU); Kirby Park/CA/Elkhorn Slough (Wasson et al. 2001); CA/Elkhorn Slough; Moss Landing/CA/Moss Landing Harbor (2011, California Department of Fish and Wildlife 2014); CA/Morro Bay (1960, Reish and Barnard 1960; Blake 1966, cited by Carlton 1979; 011, California Department of Fish and Wildlife 2014)
Vectors
Level | Vector |
---|---|
Alternate | Oyster Accidental |
Alternate | Ballast Water |
Alternate | Hull Fouling |
Regional Impacts
Ecological Impact | Herbivory | |
Nichols and Thompson (1985) suggested that an upstream movement of abundant suspension-feeding benthos, including S. benedicti, was responsible for a decline in phytoplankton biomass in Suisun Bay during a period of low river flow and high salinity 1976-1977. | ||