Invasion
Invasion Description
1st Record: CA/Sacramento-San Joaquin Delta (1908, Herbold and Moyle 1989, cited by Cohen and Carlton 1995; Dill and Cordone 1997)
Geographic Extent
CA/Sacramento-San Joaquin Delta (1908, Herbold and Moyle 1989, cited by Cohen and Carlton 1995); Dill and Cordone 1997; Leidy 2007; Brown and Michniuk 2007; Grimaldo et al. 2012); Walnut Grove/CA/North Fork Mokelumne River (Cavallo et al. 2012); Solano County/CA/ downstream from Lake Curry on Suisun Creek, Solano County (1940, Leidy 2007); CA/Suisum Marsh (1979-1999, Matern et al. 2002)
Vectors
| Level | Vector |
|---|---|
| Probable | Fisheries Intentional |
Regional Impacts
| Ecological Impact | Predation | |
| Black Crappies in the Delta feed on mysids as juveniles, and as adults, on juveniles of Threadfin Shad (Dorosoma petenense) and Striped Bass (Morone saxatilis) (Turner 1966, cited by Cohen and Carlton 1995; Moyle 2002). | ||
| Economic Impact | Fisheries | |
| Websites indicate that the Black Crappie is a popular sport fish in the Sacramento-San Joaquin Delta. | ||