Tag Archives: salmon

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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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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Being patient and persistent with nature

Posted on October 16, 2022 by Andrew Rypel

By Andrew L. Rypel In the coming weeks, fall-run Chinook salmon (Oncorhynchus tshawytscha) will appear in Putah Creek again to spawn. The fact that any salmon spawn in Putah Creek is a small miracle, and testimony to the resilience of … 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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Fish are born free, but are everywhere in cages this spring

Posted on April 28, 2019 by jaylund

by Carson Jeffres, Eric Holmes, and Andrew Rypel State, federal, and local governments, water users, and the public are all concerned with the survival of salmon.   Over decades, and especially recent years, most salmon runs have severely declined in California. … Continue reading →

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Salmon finding a home in my backyard – Could it be?

Posted on March 11, 2015 by UC Davis Center for Watershed Sciences

By Peter Moyle The sound of splashing drew me to the stream. A dark finned back cut the surface. Salmon? The fish came into view and its snout was a giveaway, maroon-hued and curved like a hook. This was a … Continue reading →

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Aquatic plants: unsung but prime salmon habitat

Posted on November 13, 2014 by UC Davis Center for Watershed Sciences

By Robert Lusardi and Ann Willis For decades, California’s management and restoration of salmon and trout populations have focused on principles rooted in coastal redwood streams, mostly fed by rainfall runoff. These concepts portray ideal salmonid habitat as deep pools, … Continue reading →

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Saving California’s salmon during a severe drought

Posted on February 17, 2014 by UC Davis Center for Watershed Sciences

By Peter Moyle California is in one of the most severe droughts in recent years. This means water agencies are under great pressure to sacrifice river flows meant to sustain fish and wildlife for increased water delivery to farms and … Continue reading →

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Halloween horrors and machetes on the Butte

Posted on October 30, 2013 by UC Davis Center for Watershed Sciences

By Chris Bowman Photos by Bill Husa, Chico Enterprise-Record They spook the faint-of-heart every Halloween. Ghoulish, hollow-eyed creatures stumble about like they’re half-dead. Their skin is mottled from open sores. Rotting lips peel back to reveal horrific grins. But enough … Continue reading →

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How to save salmon: location, location, location

Posted on July 23, 2013 by UC Davis Center for Watershed Sciences

By Robert Lusardi Spring-fed waters are luxurious places for salmon and trout. They provide ideal flows and temperatures year-round and jungles of aquatic plants teeming with insects for easy snacking. In real estate, the saying goes, three things matter: “location, … Continue reading →

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