The Delta Science Program performs analysis and synthesis of scientific information to report on status and trends of key scientific issues within the Delta. The Delta Science Program coordinates workshops and symposia that result in synthesis reports. These products update the scientific state of knowledge, identify science needs and data gaps, and guide adaptive management.
2012 – 2016 Drought Management and Science Synthesis
The purpose of this effort is to develop a concise synthesis report based on the management decisions made during the 2012-2016 drought and the scientific information utilized to inform those decisions. Lessons learned from these actions are discussed and intended to inform future drought-related management decisions.
False River (Emergency Drought) Barrier
During spring 2015, a rock barrier was constructed in False River to limit salinity penetration into the central Delta and to the water intakes in the south Delta. This Barrier allowed reduce Delta outflow while maintaining salinity below criteria at selected control points, thereby saving water in the reservoirs while preventing water‐quality problems. This synthesis will result in a manuscript that summarizes the different studies that investigated the ecological responses to the Barrier.
Mercury: Sources, Biogeochemistry, and Biotic Effects 2003-2018
Mercury is a legacy contaminant that has haunted natural resource managers in the Bay-Delta region for decades. Methylmercury, the most toxic form of mercury, is associated with adverse effects to fish, wildlife, and humans. The Delta Science Program, in collaboration with the US Geological Survey, Delta Conservancy, and California Department of Fish and Wildlife, coordinated a series of workshops in January and June 2016. This mercury synthesis effort will be the first in over a decade and present the most up-to-date scientific information, while also identifying crucial gaps in knowledge.
2008, 2016, and 2020 (anticipated) - A collection of peer-reviewed syntheses intended to inform science and policy audiences about the “state of the science” for topics of high management concern in the Bay-Delta system.
September 26, 2018 - A symposium held with the UC Davis Coastal Marine Sciences Institute to discuss how changing salinity regimes affect the Bay-Delta and other estuarine ecosystems. A synthesis report is in progress.
March 14, 2018 - A symposium and workshop held with the UC Davis Coastal Marine Sciences Institute to discuss what is known about pathogens and diseases in wild salmon populations in the Central Valley, what monitoring and research gaps exist, and how other systems manage to control or reduce impacts of pathogens/disease. A synthesis report is in progress.
December 4, 2017 - A symposium held with the UC Davis Coastal Marine Sciences Institute with the goal to inform scientists and managers on decision-making processes for translocations. A synthesis report is in progress.
November 9, 2017 - A symposium held with Cramer Fish Sciences and the Biotelemetry Laboratory at UC Davis to discuss challenges and management insights related to telemetric technology. A synthesis report is in progress.
August 29, 2017 - A symposium held with the Delta Interagency Invasive Species Coordination team and UC Davis to explore tools and actions being developed to meet today’s invasive species management needs. A synthesis report is in progress.
January 31, 2017 - A symposium held with the UC Davis Coastal Marine Sciences Institute and the State Water Resources Control Board discussing the impacts of multiple stressors on aquatic ecosystems. A Synthesis report is in progress.
November 1-2, 2016 - A workshop help with the US Geological Survey bringing together scientists, science-policy experts, and stakeholders to discuss how collaborative science is being managed, funded, and communicated in several high-profile ecosystems around the country. A proceedings report and executive summary were produced.
March 29, 2016 - A symposium held with the UC Davis Coastal Marine Sciences Institute discussing the status and decision-making efforts related to Delta and longfin smelt. A synthesis report was produced.
September 15, 2015 - A symposium held with Delta Interagency Invasive Species Coordination team and UC Davis to explore new developments in surveillance and monitoring of aquatic vegetation. A synthesis report was produced.
September 10, 2015 - A symposium held with the UC Davis Coastal Marine Sciences Institute how changing ocean and hydrologic conditions affect Central Valley salmon and their management. A synthesis report was produced.
March 3, 2015 - A symposium held with the Center for Aquatic Biology and Aquaculture about the physiology, behavior, and ecology of sturgeon to help guide management and conservation efforts. A synthesis report was produced.
June 5-6, 2014 - The Environmental Data Summit brought together scientists, resource managers, decision makers, academia, stakeholders, and others to discuss a new era in information management and discovery. The resulting white paper was used in the development of Assembly Bill AB1755, signed by the Governor in November 2016.
April 16-17, 2014 - A workshop identifying the best available science to inform the State Water Board’s decisions pertaining to interior Delta flows, resulting in a final panel report.
February 10, 2014 - A workshop held to inform the State Water Board’s decisions regarding Delta outflow objectives, resulting in a final panel report.
July 22-23, 2013 - A workshop held by The Delta Stewardship Council, California Department of Fish and Wildlife, and National Marine Fisheries Service that resulted in a synthesis report.
June 10, 2013 - A symposium and workshop held with the Center for Aquatic Biology and Aquaculture and American Fisheries Society on the science of ecological linkages between tidal marshes and fish in the Delta. A synthesis report was produced.
January 18, 2013 - A symposium and workshop held with the Center for Aquatic Biology and Aquaculture discussing aspects on functional flow regimes in the Delta. A synthesis report was produced.
April 13, 2011 - A workshop to inform the implementing agencies of the 2009 Biological Opinions on how salmonid life cycle models could be used in a decision-making framework. A final report was produced.