FLOWS SYMPOSIUM, PART 1: The science of natural functional flows to the Delta: In-stream flow science for sustainable river management

In January of 2013, a symposium hosted by Delta Science Program and the UC Davis Center for Aquatic Biology and Aquaculture (CABA) titled, What is a Natural Hydrograph in Regulated Rivers? The Science of Natural Flows to the Delta, explored how the hydrologic regime of Delta inflows are impacted by land-use changes, diversions from the watershed, and climate change. These […]

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BROWN BAG SEMINAR: Flow Dynamics and Transport of Water-Quality Constituents in the Sacramento-San Joaquin River Delta

Dr. David Schoellhamer, Research Hydrologist for the USGS, earned his bachelors degree in civil engineering from UC Davis and a doctorate in Coastal and Oceanographic Engineering from University of Florida.  He has studied sediment transport in the San Francisco Estuary since 1993.  He was the lead author for the chapter on flow dynamics and transport of water quality constituents in […]

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Delta nutrients: Sources, sinks, sags, soups, and sensors

Delta Lead Scientist Cliff Dahm discusses sources and effects of nutrients in the Delta Increasing clarity of waters, the emergence of harmful algal blooms, the proliferation of aquatic water weeds, and altered food webs have brought the issue of nutrient dynamics to the forefront in the Delta. Nutrients, such as nitrogen (or ammonium) and phosphorus can be beneficial or detrimental […]

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Getting to the Bottom of It: An Overview of the Environmental Monitoring Program’s Benthic Monitoring in the Delta

DWR’s Dr. Betsy Wells takes a look at the creatures that live on the bottom of the Delta Creating a better understanding of bottom-dwelling, or benthic, invertebrate communities enhances our knowledge of the Sacramento-San Joaquin Delta ecosystem. These communities are a crucial link in the Delta’s food web and are a classic bio-indicator of aquatic ecosystem health. In this seminar, […]

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Shasta Dam Fish Passage Evaluation: Winter-run Chinook may swim above Shasta Dam once again

Agency scientists discuss the winter-run captive broodstock program at Livingston Stone National Fish Hatchery, the conceptual designs for the juvenile collector facilities, and the pilot implementation plan and schedule The NMFS biological opinion on the coordinated operation of the state and federal water projects concluded that CVP and SWP operations were likely to jeopardize the continued existence of salmonids, and […]

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Tidal marshes: Adapting to sea level rise, carbon sequestration

Dr. Jim Morris on the mechanisms of how tidal marshes keep pace with sea level rise, and Dr. John Callaway with research on carbon sequestration in the San Francisco Bay’s tidal wetlands Back in the late 1800s as the Sacramento-San Joaquin Delta was being reclaimed for agriculture, a somewhat parallel process was happening to the shoreline of the San Francisco […]

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Delta Plan Interagency Implementation Committee, Pt. 1: Actionable Delta Science & a very brief update on Cal Water Fix and Cal Eco Restore

The interagency committee charged with implementation of the Delta Plan endorses a list of high priority science actions for the Delta As implementation of the first Delta Plan enters its third year, the Delta Plan Interagency Implementation Committee held the first of two semi-annual meetings on May 11, 2015. The Delta Plan Interagency Implementation Committee (DPIIC) is comprised of eighteen […]

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Science news and reports: New research paper on impacts of pot grows on watersheds, Climate change and Central Valley grasslands, wetland restoration, pine beetles, shrinking habitats and more …

In science news this week, New research paper on the impact of surface water diversions for marijuana cultivation on aquatic habitat in four Northwestern California watersheds, Central Valley, 2100: Land Use and Climate Change Could Impact Wildlife & Water Supplies, FishBio blog on the disappearing salmon carcass, 18 months after the fire on Mt. Diablo, Rethinking wetland restoration, and more […]

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Science news and reports: Prepare for the extinction of Delta smelt, plus hatcheries, instream flows for salmon, habitat restoration, West Coast sea lions, river algae and mercury pollution, and more …

In science news this week, Prepare for the extinction of Delta smelt, In search of hatchery solutions, Instream flows: new tools to quantify water quality conditions for returning adult Chinook salmon, Habitat restoration brings back Oregon chub, Environmental changes stress West Coast sea lions, West Coast waters shifting to lower productivity regime, River algae affecting mercury pollution at Superfund site, […]

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The Delta Landscapes project: Creating a spatial framework to inform restoration planning

A new report uses landscape metrics in both the historical and contemporary Delta to help define, design, and evaluate functional, resilient landscapes for the estuary’s future The state of California has set ambitious restoration goals for restoration of the Delta’s ecosystem as embodied in the Delta Plan; those goals include restoring large areas of interconnected habitats within the Delta and […]

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