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 Impact | Food/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). | ||