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Tag Archives: Andrew Rypel
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 *this is a repost of a blog originally published in June 2020. Damming rivers was once a staple of public works and … Continue reading
Posted in Uncategorized
Tagged Andrew Rypel, Ann Willis, Christine Parisek, dams, infrastructure, Jay Lund, Karrigan Bork, novel ecosystems, Oroville, Peter Moyle, safety, salmon, Sarah Yarnell
6 Comments
Monster Fish: Lessons for Sturgeon Management in California
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
Posted in Uncategorized
Tagged Andrew Rypel, dams, Delta, fish, fisheries, Green Sturgeon, habitat, HABs, hatcheries, Peter Moyle, Sturgeon, White Sturgeon, Zeb Hogan
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Hatcheries alone cannot save species and fisheries
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
This Drought is Dead – Long Live the Drought
by Jay Lund and Andrew L. Rypel Floods and droughts are not opposites and can occur simultaneously. This occurs often in California and is especially well-illustrated this year. Floods, droughts, and water scarcity are different. Floods are too much water … Continue reading
Posted in Uncategorized
Tagged Andrew Rypel, drought, Ecosystems, Flood-Mar, floods, Jay Lund, SGMA, UC Davis Center for Watershed Sciences, water management
1 Comment
Will more wildfire and precipitation extremes mussel-out California’s freshwater streams?
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
Posted in Uncategorized
Tagged Andrew Rypel, conservation, fish, Freshwater Mussels, water quality, wildfire
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Green Sturgeon in California: Hidden Lives Revealed From Long-Term Tracking
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
Posted in Uncategorized
Tagged Andrew Rypel, dams, fish, Flow, Jonathan Walter, MIgration, Scott Colborne, Sturgeon, Telemetry
2 Comments
Is the Drought Over? Reflections on California’s Recent Flood-Drought Combo
By Andrew L. Rypel, Jay Lund, and Carson Jeffres Early January was an unusually wild ride of atmospheric rivers. Nine sizable systems produced a train of storms beginning about New Years and lasting for several weeks across almost all of … Continue reading
Posted in Uncategorized
Tagged Andrew Rypel, Carson Jeffres, climate change, drought, flood, Jay Lund, reservoirs, soil
1 Comment
Nature’s gift to nature in early winter storms
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
Posted in Uncategorized
Tagged Andrew Rypel, Carson Jeffres, fish, floodplains, floods, groundwater, habitat, Jeff Mount, Peter Moyle
1 Comment
White sturgeon: is an ancient survivor facing extinction in California?
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
Posted in Uncategorized
Tagged Andrea Schreier, Andrew Rypel, extinction, fish, HABs, Jonathan Walter, Nann Fangue, Scott Colborne, White Sturgeon
1 Comment
Being patient and persistent with nature
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
Posted in Uncategorized
Tagged Andrew Rypel, food webs, Putah Creek, restoration, salmon
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