Author Archives: andrewrypel

New insights into Putah Creek salmon

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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Rockin’ with the Rockfish

By Andrew L. Rypel and Peter B. Moyle California is a spoil of natural resource riches. Most times, our California waterblog busies itself with important freshwater resources issues. Yet every now and again, it is refreshing and worth turning our … Continue reading

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How will climate change affect the economic value of water in California?

by Lorie Srivastava Climate change is affecting natural resources in California, with water being one of the most important in the state. Water source is critical for municipalities, agriculture, industry, and habitat/environmental purposes. Will future supply meet future demand? How … Continue reading

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Crawdads: Naturalized Californians

By Peter Moyle Crayfish, crawdads, crawfish: whatever you call them, they are everywhere in California’s waters and are as tasty as their lobster relatives. They are especially familiar to anglers who peer into the maw of a bass or pikeminnow … Continue reading

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Seven conservation lessons I learned in government work

By Andrew L. Rypel Before joining the faculty at UC Davis, I spent the previous five years as a research scientist at the Wisconsin Department of Natural Resources in Madison, Wisconsin. Apparently this experience is somewhat rare among academics. A … Continue reading

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Losing mussel mass – the silent extinction of freshwater mussels

by Andrew L. Rypel Throughout my career I’ve spent some time studying the fascinating ecology and conservation issues of freshwater mussels (Fig. 1). For me, learning about mussels has fortified a recurring theme of the natural world – that everything … Continue reading

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Fish surveys in the estuary: the whole is greater than the sum of its parts

by Dylan K. Stompe, Peter Moyle, Avery Kruger, John Durand The San Francisco Estuary is a dynamic and altered estuary that supports a high diversity of fishes, both native and non-native. These species have substantial recreational, commercial, and intrinsic value … Continue reading

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Summer Reading in the Time of Covid 19

by Peter B. Moyle Tired of reading about the constant haggling over California water? Or of binge-watching old TV shows? Or, worse, watching the news as the Covid 19 virus spreads in our free country? For relief, I recommend two … Continue reading

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Initial Sampling of the Carp-DEUM Project

By Kim Luke, John Durand, Rachel McConnell, Aaron Sturtevant, Nina Suzuki, Andrew L. Rypel This spring, the Carp-Dependent Urgent Management (Carp-DEUM) Project began its first round of sampling in the UC Davis Arboretum before the Covid-19 lockdown. The project has … Continue reading

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What’s the dam problem with deadbeat dams?

by Andrew L. Rypel, Christine A. Parisek, Jay Lund, Ann Willis, Peter B. Moyle, Sarah Yarnell, Karrigan Börk Damming rivers was once a staple of public works and a signal of technological and scientific progress. Even today, dams underpin much … Continue reading

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