Species Regional Summary
Styela plicata
San Diego Bay ( P020 )

Invasion History Vectors Impacts References

Invasion

Invasion Description

1st Record: San Diego/CA/San Diego Bay (as Styela barnharti, Ritter and Forsyth 1917, cited by Carlton 1979)

Geographic Extent

San Diego/CA/San Diego Bay (as Styela barnharti, Ritter and Forsyth 1917, cited by Carlton 1979); Shelter Island, San Diego/CA/San Diego Bay (1994, 1995, 1996, 1997, 1998, 2000, Lambert and Lambert 2003); Harbor Island, San Diego/CA/San Diego Bay (1994, 1995, 1996, 1997, 1998, Lambert and Lambert 2003), Fiddlers Cove, San Diego/CA/San Diego Bay (1994, 1995, 1996, 1997, 1998, 2000, Lambert and Lambert 2003); 24th St, San Diego/CA/San Diego Bay (1994, 1995, 1996, 1997, Lambert and Lambert 2003); J St., San Diego/CA/San Diego Bay (1994, 1995, 1996, 1997, Lambert and Lambert 2003); San Diego/CA/San Diego Bay (2001, Fairey et al. 2002; 2011, California Department of Fish and Wildlife 2014)

Vectors

Level Vector
Probable Hull Fouling

Regional Impacts

Ecological ImpactCompetition
Styela plicata has been the dominant marina fouling organism in southern California harbors since 1960 (Lambert and Lambert 1998). It produced large monospecific patches in several locations during serveral years in San Diego Bay (Lambert and Lambert 2003). It and other introduced ascidians have replaced the native species Pyura haustor and Ascidia ceratodes in southern California harbors (Lambert and Lambert 1998).
 

References

Full Reference List for Styela plicata

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