Species Regional Summary
Sinocalanus doerrii
San Francisco Bay ( P090 )

Invasion History Vectors Impacts References

Invasion

Invasion Description

1st Record: Pittsburg/CA/Sacramento River (1978, Orsi et al. 1983)

Geographic Extent

Pittsburg/CA/Sacramento River (1978, Orsi et al. 1983); Decker Island/CA/Sacramento River (1978, Orsi et al. 1983); CA/Carquinez Strait (1980, Orsi et al. 1983; Ambler 1985); Port of Stockton/CA/San Joaquin River (Cohen and Carlton 1995); Hood/CA/Sacramento River (Cohen and Carlton 1995); Sacramento/CA/Sacramento Turning Basin (Fairey et al. 2002); Bull Island/CA/Napa River (2003-2005, Bollens et al. 2014)

Vectors

Level Vector
Probable Ballast Water

Regional Impacts

Ecological ImpactFood/Prey
Sinocalanus doerrii was selected against by larval Striped Bass (Morone saxatilis), apparently because of superior escape abilities (Meng and Orsi 1991). From 1980 to 1988, however, S. doerrii was a major component of the diet (30-80%) of juvenile Striped Bass. After the invasion of Pseudodiaptomus spp., the latter species became the predominant copepod eaten by young striped bass. Sinocalanus doerri was also selected against by the endangered Delta Smelt (Hypomesus transpacificus (Slater and Baxter 2014).
 

References

Full Reference List for Sinocalanus doerrii

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