Interagency Ecological Program Spring Season report
- Zooplankton is sampled monthly by the CDFW/DWR Environmental Monitoring Program but sampling in San Pablo Bay did not begin until 1998.
- Zooplankton are an important food source for pelagic fish.
- Calanoid copepods and mysids are particularly good fish food. Cyclopoid copepods are not as good for fish food.
- Biomass in Spring tends to be higher than Winter, but lower than Summer.
Average Spring Zooplankton Biomass by Region
In 2018, San Pablo Bay had much lower than average biomass, mostly calanoid copepods
In 2018, Suisun Bay also had much lower than average total biomass.
In 2018, the Delta also had much lower than average total biomass.
For more information see: Hennessy, A. 2018. Zooplankton Monitoring 2018. IEP Newsletter 32(1):21-32.