Tag Archives: dams

Putah Creek’s rebirth: a model for reconciling other degraded streams?

Posted on July 8, 2023 by Andrew Rypel

By Emily Jacinto, Nann A. Fangue, Dennis E. Cocherell, Joseph D. Kiernan, Peter B. Moyle, and Andrew L. Rypel It’s hard to look at native fishes in Putah Creek and not grin a little. Be it a Sacamento Pikeminnow (below), … Continue reading →

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Facing the Dragon: California’s Nasty Ecological Debts

Posted on June 11, 2023 by Andrew Rypel

By Andrew L. Rypel “Every time you borrow money, you’re robbing your future self.” ~N. Morris When I was younger, a close friend of mine struggled with a crippling debt. It was during that unique period shortly before and after … Continue reading →

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What’s the dam problem with deadbeat dams?

Posted on May 28, 2023 by Andrew Rypel

by Andrew L. Rypel, Christine A. Parisek, Jay Lund, Ann Willis, Peter B. Moyle, Sarah Yarnell, Karrigan Börk *this is a repost of a blog originally published in June 2020. Damming rivers was once a staple of public works and … Continue reading →

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Monster Fish: Lessons for Sturgeon Management in California

Posted on May 14, 2023 by Andrew Rypel

By Peter B. Moyle & Andrew L. Rypel If you ever watched National Geographic television and are interested fishes and rivers, you likely have some familiarity with Dr. Zeb Hogan. He hosted a series of shows on giant freshwater fishes, … Continue reading →

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Green Sturgeon in California: Hidden Lives Revealed From Long-Term Tracking

Posted on February 12, 2023 by Andrew Rypel

By Scott F. Colborne, Lawrence W. Sheppard, Daniel R. O’Donnell, Daniel C. Reuman, Jonathan A. Walter, Gabriel P. Singer, John T. Kelly, Michael J. Thomas, and Andrew L. Rypel You gotta respect fishes that have been around since the dinosaurs, … Continue reading →

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Dammed hot: California’s regulated streams fail cold-water ecosystems

Posted on August 29, 2021 by UC Davis Center for Watershed Sciences

by Ann Willis, Ryan Peek, and Andrew L. Rypel Given the current drought, it’s no surprise that California’s dams are struggling to provide cool water habitats to support native freshwater ecosystems. But what if they were never able to support … Continue reading →

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A Swiss Cheese Model for Fish Conservation in California

Posted on January 24, 2021 by Andrew Rypel

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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New insights into Putah Creek salmon

Posted on October 18, 2020 by Andrew Rypel

by Malte Willmes, Anna Steel, Levi Lewis, Peter B. Moyle, and Andrew L. Rypel It’s November 2016, and we’re out in canoes on Putah Creek as part of the annual salmon survey. Just as we navigate our watercraft through a … Continue reading →

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How dam operators can breathe more life into rivers

Posted on February 1, 2015 by UC Davis Center for Watershed Sciences

By Sarah Yarnell Dams are no friend to biodiversity. Once impounded, a river answers first and foremost to human needs, be it water supply, energy production or flood protection. Releases are measured and timed to satisfy these demands. As a result, … Continue reading →

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Flagging problem dams for fish survival

Posted on October 22, 2014 by UC Davis Center for Watershed Sciences

By Ted Grantham and Peter Moyle This drought year, as in those past, California water regulators have given away to cities and farms some river flows critical to fish and wildlife. It’s a dicey tradeoff considering most of our native … Continue reading →

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