Category Archives: Uncategorized

Two-way thinking in natural resource management

By Andrew L. Rypel “I have more confidence in the ability of institutions to improve their thinking than in the ability of individuals to improve their thinking” ~Daniel Kahneman It is long recognized that there are two dominant modes of … Continue reading

Posted in Uncategorized | 2 Comments

The Great Lakes and Invasive Species

This week’s CaliforniaWaterBlog post is an excerpt (Box 1) from a recent Delta Independent Science Board report on non-native species and the California Delta.  This excerpt summarizes the experience of the Great Lakes, and how its physical and ecological management … Continue reading

Posted in Uncategorized | 1 Comment

Follow the Water!

by Jay Lund People often have strange ideas about how water works.  Even simple water systems can be confusing.  When water systems become large complex socio-physical-ecological systems serving many users and uses, opportunities for confusion become extreme, surpassing comprehension by … Continue reading

Posted in Uncategorized | 8 Comments

Saving Clear Lake’s Endangered Chi

By Peter B. Moyle and Thomas L. Taylor ‘Tens of thousands of these fish once ascended streams in Spring. They are of major cultural importance to the Pomo people who harvested them as a valued food source.’ When you read statements … Continue reading

Posted in Uncategorized | 5 Comments

Unlocking how juvenile Chinook salmon swim in California rivers

By Rusty C. Holleman, Nann A. Fangue, Edward S. Gross, Michael J. Thomas, and Andrew L. Rypel Despite years of study and thousands of research projects, some aspects of the biology of Chinook salmon remain altogether mysterious. One enduring question … Continue reading

Posted in Uncategorized | Leave a comment

Uncertainty in modeling, an Art Gallery

Water resource planners regularly rely on computer models to illuminate relationships between human- and natural-systems. Anyone who has tinkered with one of California water supply models knows this is a deeply left-brained exercise. During Winter 2021, as part of Jay Lund’s … Continue reading

Posted in Uncategorized | Leave a comment

California’s continued drought

By Andrew L. Rypel As California’s drought deepens, it is worth checking in on the status of water supplies and what might be in store for the rest of the summer, and beyond. What started with the promise of a … Continue reading

Posted in Uncategorized | 2 Comments

Considerations for Developing An Environmental Water Right in California

By Karrigan Börk, Andrew L. Rypel, Sarah Yarnell, Ann Willis, Peter B. Moyle, Josué Medellín-Azuara, Jay Lund, and Robert Lusardi This week, news emerged of a State Senate plan that would spend upwards of $1.5B to purchase senior water rights … Continue reading

Posted in Uncategorized | 7 Comments

Demystifying mist as a source of water supply

By Jay Lund (originally posted in 2015) In some of the world’s driest places, atmospheric moisture is a major source of water for native ecosystems. Some algae, plants and insects in the Israeli and Namibian deserts get much of their water … Continue reading

Posted in Uncategorized | Tagged , , , | 19 Comments

The Failed Recovery Plan for the Delta and Delta Smelt

By Peter Moyle Few native species are as controversial as Delta Smelt. It is a 3-4 inch translucent fish that lives only in the California Delta, where the Sacramento and San Joaquin rivers meet. This place also happens to be … Continue reading

Posted in Uncategorized | 4 Comments