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Science activity #50193, updated 6 May 2026

Fish Restoration Program Monitoring

Description / purpose

Description

The CDFW Fish Restoration Program will collect fish and invertebrate data near existing and planned tidal wetlands. These data will provide information on how fish and invertebrate communities change pre-/post-restoration. While collecting these data, the variability of invertebrate catches will be assessed for each gear type to determine the optimal number of samples per sampling site.

Need

Under the 2008, 2019, 2024 State Water Project/Central Valley Project Joint Operations Biological Opinion from United States Fish and Wildlife Service, 2009, 2019, 2024 National Marine Fisheries Service, and 2009, 2020, and 2024 State Water Project Incidental Take Permit, Department of Water Resources (DWR) is required to restore >8,000 acres of tidal wetlands in the Sacramento-San Joaquin Delta (Delta) and Suisun Marsh to improve habitat and food web resources for threatened fishes. The Fish Restoration Program is responsible for biological monitoring in these restored tidal habitats to assess their success for providing habitat and food web benefits for at-risk native fishes.

Project Objectives

Assess the food web resources (nutrients, phytoplankton, zooplankton, and macroinvertebrates) associated with pre- and post-restoration tidal wetlands, as well as with existing reference wetlands

Assess the fish community of restoring wetlands including use by rearing salmonids and characterization of the predator and competitor communities

Linked science activities

None specified
  • FRP restoration sites and associated reference sites in different regions of the estuary where sampling will occur in 2026.

Collaborators

None specified

Activity status

  • 1 Awarded / Initiating (2013)
  • 2 In progress / Ongoing (2013 - 2026)
  • 3 Complete

Funding summary

Total allocated funding: $0

Location

Subbasins
Delta regions

Geographic tags

LIBERTY ISLAND , Cache Slough Complex , North Delta , Suisun Marsh , West Delta

Products and outputs

Type Title Description Views
Link Fish Restoration Program Tidal Wetland Monitoring Webpage for the Fish Restoration Program Tidal Wet 28
Data Fish catch, invertebrate catch, and water quality data from the Sacramento-San Joaquin Delta collected by the Fish Restoration Monitoring Program. Data from the project on EDI- https://doi.org/10.6 6
Report Sherman, S., R. Hartman, and D. Contreras, editors. 2017. Effects of Tidal Wetland Restoration on Fish: A Suite of Conceptual Models. IEP Technical Report 91. Department of Water Resources, Sacramento, California. Conceptual models for tidal wetland monitoring 0
Link Tidal Wetland Monitoring Study IEP Fact Sheet Factsheets are concise documents that explain p 1
Link Fish Restoration Program IEP Data Management Plan Data Management Plans (DMPs) are documents that 0