Invasion
Invasion Description
1st Record: Oxnard/CA/unnamed slough (1977-1983, 'probably still exists', Swift et al. 1993)
Geographic Extent
Oxnard/CA/unnamed slough (1977-1983, 'probably still exists', Swift et al. 1993); Santa Monica/CA/Ballona Marsh (1990, Swift et al. 1993; Torchin 2010); San Diego/CA/ Sweetwater Marsh National Wildlife Refuge (San Diego Bay) (1989, Williams et al. 1998)
Vectors
| Level | Vector |
|---|---|
| Probable | Pet Release |
Regional Impacts
| Ecological Impact | Food/Prey | |
| Sailfin Mollies (Poecilia latipinna) provided an unexpected benefit for the native California Killifish (Fundulus parvipinnis) in Ballona Marsh. In experiments, the native killifish showed increased growth in the presence of female mollies. This increased growth apparently resulted from predation on newborn mollies, which are born viviparously, and apparently constitute a significant food item (Torchin 2010). | ||