News and Special Events!

  • IEP 2026 Workshop

    The 2026 IEP Annual Workshop is March 16-18, 2026 at the CNRA Headquarters building. More information about the workshop can be found on the IEP Annual Workshop page. Don't forget to Subscribe to the IEP Annual Workshop email list to receive updates.

  • Got something new to share? Contact us at iep@wildlife.ca.gov.

IEP Calendar

Check out the IEP Calendar for upcoming IEP meetings and events!

IEP Blogs and Videos

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Featured Survey

When the weather turns cold and stormy it can mean it's spawning season for many of our native Estuary fishes. The Smelt Larva Survey is out on the water during the wet winter keeping tabs on the reproductive activities of our endangered and threatened species of smelts. The Smelt Larva Survey began in 2009 and provides near real-time distribution data for Longfin Smelt larvae in the Delta, Suisun Bay, and Suisun Marsh. These data are used by agency managers to assess vulnerability of Longfin Smelt larvae to entrainment in south Delta export pumps. The gear is highly efficient at retaining small larvae, and the project also collects data on other larval fish species.

Featured Publications

Featured Datasets

Featured Websites

  • Seasonal Monitoring Report
    The seasonal monitoring report was created to provide managers with an overview of the trends associated with different environmental ad biological parameters in the system. The IEP Seasonal Monitoring Report presents the full time series for selected water quality, plankton, and fisheries surveys conducted by IEP in a single graphical report. Time series are presented separately for 3 major regions: Delta, Suisun, and San Pablo Bay. The report is developed by the IEP Synthesis Team, and reviewed by the Science Management Team and Coordinators before publication.
  • Frontiers for Young Minds
    Where the river meets the ocean - Stories from San Francisco Estuary