Category Archives: Uncategorized

A Swiss Cheese Model for Fish Conservation in California

by Andrew L. Rypel, Peter B. Moyle, and Jay Lund We read with great interest Nicholas Chistakis’s piece outlining a “Swiss Cheese Model For Combating Covid-19” in the Wall Street Journal. Christakis presents a model for considering the individual steps … Continue reading

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Managing Groundwater Overdraft – Combining Crop and Water Decisions (without salinity)

by Yiqing “Gracie” Yao and Jay Lund California’s Central Valley produces much of the nation’s food, including about 40% of the country’s fruits and nuts and has the nation’s second most pumped aquifer system. Its drier southern portion, the San … Continue reading

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2021: Is this the year that wild delta smelt become extinct?

by Peter Moyle, Karrigan Börk, John Durand, T-C Hung, and Andrew L. Rypel 2020 was a bad year for delta smelt. No smelt were found in the standard fish sampling programs (fall midwater trawl, summer townet survey). Surveys designed specifically … Continue reading

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California’s Sacramento-San Joaquin Delta – a short history of big changes

by Jay Lund Deltas globally adjust with changes and fluctuations in external conditions, internal dynamics, and human management.  This is a short history of big changes to California’s Sacramento-San Joaquin Delta (Delta) in the past and present, and its anticipated … Continue reading

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We Wish You A Silly Fishmas

by Kim Luke Night Before Fishmas “Twas the night before Fishmas, when all through the spaceNot a creature was stirring, not even a Dace;The fyke nets were hung by the boat dock with care,In hopes that St. Fish-olas soon would … Continue reading

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Picture this research – a photo blog from the Center for Watershed Sciences

by Scientists at CWS Holidays are a natural time of introspection on who we are, what we do, and why. Towards a bit of our own self-reflection, some researchers from UC Davis’ Center for Watershed Sciences (CWS) have each contributed … Continue reading

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Making “productive” assessments of California’s ecosystems

by Andrew L. Rypel Conservation science and restoration ecology are challenging and interdisciplinary fields. Managing for ecological function necessitates focus on multiple scales of ecological organization while simultaneously integrating feedback loops with critical environmental drivers like temperature, flow and habitat … Continue reading

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Is California Heading for a Multi-Year Drought?

by Jay Lund Yes, California will have another multi-year drought.  California has immense hydrologic variability, with more droughts and floods per average year than any other part of the country.  California’s water users, managers, and regulators should always be prepared … Continue reading

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Functional Flows Can Improve Environmental Water Management in California

By Ted Grantham, Jeanette Howard, Belize Lane, Rob Lusardi, Sam Sandoval-Solis, Eric Stein, Sarah Yarnell and Julie Zimmerman Over the past three years, a team of scientists from universities, NGOs, and state agencies across California have been working to provide … Continue reading

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Getting to the Bottom of What Fuels Algal Blooms in Clear Lake

By: Nick Framsted Clear Lake is one of California’s oldest and most unique natural features. Nestled in Northern California’s coastal mountains, Clear Lake is the largest lake completely within California and is the oldest lake in North America with sediments … Continue reading

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