Vernal pool fairy shrimp require vernal pools or similar, ephemeral pools to complete their life cycle. They prefer small pools with cold water. Prior to seasonal drying of the pools, females produce eggs (“cysts”). These cysts can dry out and lie dormant until pool re-filling occurs, at which time the eggs will hatch.
Limiting factors
Habitat loss, fragmentation, and degradation. Grazing, climate change, drought, and pesticides. Predation by bullfrogs and mosquitofish.
Data gaps
Evaluate genetics, define populations, identify or refine research needs. Investigate mechanics of cyst dispersal. Research to determine appropriate population viability parameters.
Conservation actions
Preservation, restoration, and creation of vernal pool habitat. Maintain or restore water quality in vernal pools.
