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Captive Delta Smelt
California Governor Newsom proclaims a regional drought emergency for the Russian River watershed in Sonoma and Mendocino counties
With much of the West experiencing drought conditions and California squarely in a second consecutive dry year, Governor Gavin Newson today directed state agencies to take immediate action to bolster drought resilience and prepare for impacts on communities, businesses and ecosystems if dry conditions extend to a third year.
State of Emergency Drought Proclamation (PDF)
Subscribe to the new USGS quarterly newsletter
This year, the USGS California Water Science Center will be launching California Waters, a quarterly newsletter designed to bring you the latest information on its ongoing work. The California Water Science Center provides reliable, impartial, foundational data and scientific analysis to address water issues facing California. Each issue will relay information about current research in fields such as groundwater, water quality, flood and drought monitoring, aquatic ecology, and the Bay-Delta. You will also stay informed on the latest center publications, presentations, and technology.
It's springtime, which for many native Bay-Delta fishes means reproducing and expanding populations into shallows and backwaters. One of the tools we use to track young fish in our system is the
Delta Juvenile Fish Monitoring Program
. Check out how we catch and count newly hatched and juvenile fish!
We'd like to call your attention to the following articles from several of our IEP partners and Principal Investigators:
Climate change will have far-reaching impacts throughout our Estuary. Dr. Denise Colombano and colleagues have examined some of the likely effects on our estuarine tidal marsh ecosystems in a Special Issue of
Estuaries and Coasts
Dr. Flora Cordoleani and others have described the usefulness of quantitative lifecycle models in discovering what else we need to monitor to effectively manage and support Spring Run Chinook in the Central Valley in
San Francisco Estuary and Watershed Science
Featured Published Datasets
Discrete water quality parameters collected over the last 60 years (1959-2020) are now available from a data publication hosted by
Ecological Data Initiative (EDI)
put together by Dr. Sam Bashevkin and others at the Delta Science Program of the Delta Stewardship Council. These data are titled:
Six decades (1959-2020) of water quality in the upper San Francisco Estuary: an integrated database of 11 discrete monitoring surveys in the Sacramento-San Joaquin Delta, Suisun Bay, and Suisun Marsh
While not exactly a dataset, the IEP's 2020 Pilot Review Technical Report reporting on efforts to review long-term data collection surveys is available by request. This report used compiled data to develop tools for assessing how changes to long-term monitoring collection routines can be expected to affect the use of these surveys to provide informaton on status and trends of ecological resources within the Estuary. To obtain a copy of the report send your request to
. This report will also be logged in the IEP's online library and be archived as: IEP Long-term Survey Review Team. 2020. Interagency Ecological Program Long-term Monitoring Element Review: Pilot approach and methods development (2020). IEP Technical Report. 201 pp.
An updated version of the
Delta Smelt Conditions
report is available from the Delta Science Program upon request, dated December 10, 2020.
Check out the
for upcoming Project Work Team meetings, Stakeholder Group meetings and other IEP related events!
May 6 IEP Coordinators Meeting (internal event) 9:00 a.m. - 12:00 p.m.
Predation Project Work Team
Meeting 1:00 p.m. - 3:00 p.m.
Data Science Project Work Team
Meeting 1:00 p.m. - 4:00 p.m.
Tidal Wetland Monitoring Project Work Team
Meeting 9:00 a.m. - 12:00 p.m.
May 19 Science Management Team Meeting (internal event) 1:00 p.m. - 4:30 p.m.
May 20 Supplemental IEP Coordinators Meeting (internal event) 9:30 a.m. - 11:30 a.m.
Other Events or News
Dr. Larry Brown, research biologist with the U.S. Geological Survey and recognized expert of California fishes was unanimously chosen as the recipient of the
2021 Brown-Nichols Science Award
IEP Lead Scientist, Steve Culberson, discusses what it will take to understand the complex San Francisco Estuary ecosystem and continue to shift ecosystem management from the simple to the complex. Check out his post
Complexities: Thinking about the San Francisco Estuary during the 2021 Bay-Delta Science Conference
on his Delta Stewardship Council page.
Ever wonder "What do fish do during a drought?" Well wonder no more. Check out Rosemary Hartman's latest IEP
Science Stories blog
In recognition of women in science take a moment to read an excellent article by the U.S. Fish and Wildlife Service
Lodi women power historic fish monitoring effort
Until further notice IEP meetings/gatherings are being held remotely/virtually.