Tag Archives: fish

California’s Amazing Terminal Lakes

Posted on November 26, 2023 by Andrew Rypel

By Peter B. Moyle When Californians talk of lakes, they usually mean reservoirs, the 1500 or so artificial bodies of water behind dams. Alternately, they may be referring to the 4,000 or so natural lakes in the Sierra Nevada or … Continue reading →

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Future Ancestors of Freshwater Fishes in California

Posted on September 17, 2023 by Andrew Rypel

By Peter B. Moyle The Challenge We are living in the Anthropocene, an era being defined by global mass extinctions caused by humanity. While on-going and impending extinctions of birds and other terrestrial vertebrates gain the most attention, the situation … 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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Hatcheries alone cannot save species and fisheries

Posted on April 30, 2023 by Andrew Rypel

By Andrew L. Rypel and Peter B. Moyle The photo is a common one (Fig 1). Large numbers of fish are being released into a river, stream or estuary – products of a fish hatchery. A politician or government leader … Continue reading →

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Will more wildfire and precipitation extremes mussel-out California’s freshwater streams?

Posted on February 26, 2023 by Andrew Rypel

By Andrew J. Lawrence and Andrew L. Rypel Apocalyptic scenes of wildfires and floods are now familiar to Californians. However, the ecological impacts from these events remain understudied in California and across the world. Gaps in awareness and understanding on … 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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Nature’s gift to nature in early winter storms

Posted on January 15, 2023 by Andrew Rypel

By Jeffrey Mount, Peter B. Moyle, Andrew L. Rypel, and Carson Jeffres The current wet spell, made up of a parade of atmospheric rivers, is a welcome change from the last three years of record dry and warm conditions. For … Continue reading →

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White sturgeon: is an ancient survivor facing extinction in California?

Posted on November 6, 2022 by Andrew Rypel

by Andrea Schreier, Peter B. Moyle, Nicholas J. Demetras, Sarah Baird, Dennis Cocherell, Nann A. Fangue, Kirsten Sellheim, Jonathan Walter, Myfanwy Johnston, Scott Colborne, Levi S. Lewis, and Andrew L. Rypel Sturgeons belong to an ancient family of fishes that once … 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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