BROWN BAG SEMINAR: California floodplains and the fish that use them

How restoring functional flows to floodplains could help restore native fish Two centuries ago, the floor of the Central Valley was largely a marshy wetland.  In the springtime, the snowpack would melt, swelling the rivers beyond their banks and casting the young fish out onto the floodplains.  There they would stay for months, fattening up on the abundant zooplankton and […]

» Read more

BROWN BAG SEMINAR: Development of Recommended Flow Targets to Support Biological Integrity Based on Regional Flow-Ecology Relationships for Benthic Macroinvertebrates in Southern California Streams

Dr. Eric Stein is the principal scientist at Southern California Coastal Water Research Project where he oversees a variety of different kinds of projects focused on instream and coastal water quality, bioassessment, hydromodification, watershed modeling, and assessment of wetlands and other aquatic resources. This brown bag seminar is the second of three seminars focused on flow targets and ecology (part […]

» Read more

BROWN BAG SEMINAR: Developing Tiered Environmental Flow Criteria Using a Functional Flows Approach for California Streams

Establishing environmental flow targets to protect aquatic communities is a priority for numerous programs in California including in the Delta. In this first of three brown bag seminars focusing on flow targets and ecology, Dr. Yarnell discusses her recent work using a functional-flows approach to develop statewide environmental flow recommendations. The approach allows for the rapid development of flow regimes […]

» Read more

BROWN BAG SEMINAR: The Delta as Changing Landscapes

Letitia Grenier is the principal investigator for the San Francisco Estuary Institute’s Delta Landscapes project, which recently completed an in-depth analysis on the change in the Delta overtime and is now offering science-based guidance on how the Delta’s ecosystem health can be recovered as part of a working landscape.  Ms. Grenier is one of a number of authors on the […]

» Read more

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 […]

» Read more

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 […]

» Read more

Deconstructing the current California drought

Dr. Michael Dettinger takes a data dive into the impacts of the California drought California, currently in its fifth (and possibly sixth) year of severe drought, is now identified with large shifts towards persistent dry periods, separated by large storms, and accompanied by record-breaking warm temperatures. These conditions are characteristic of droughts projected to accompany climate change. At a brown […]

» Read more

DR. PETER MOYLE & DR JASON BAUMSTEIGER: Assessing extinction in freshwater fishes

Drs. Moyle and Baumsteiger lay out a proposal for determining when to declare a species extinct The extinction of a species is a major consideration in balancing water supply and environmental needs. It’s usually regarded as a “yes/no” state but its determination can be quite complicated.  In this brown bag seminar, Dr. Peter Moyle and Dr. Jason Baumsteiger discuss general […]

» Read more

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, […]

» Read more

Alternative monitoring approaches for large Bay-Delta estuarine wetland restoration projects

Adapting to uncertainty or novelty during accelerated climate change In recent years, many tidal wetland restoration projects have become larger and increasingly becoming more than just a mitigation tool.  Tidal wetland restorations planned or under construction now face major new uncertainties such as accelerated climate change and sea level rise, invasive species, a decline in sediment supply, and other factors […]

» Read more
1 2 3