Author Archives: andrewrypel

By Andrew L. Rypel “I have more confidence in the ability of institutions to improve their thinking than in the ability of individuals to improve their thinking” ~Daniel Kahneman It is long recognized that there are two dominant modes of … Continue reading →

By Peter B. Moyle and Thomas L. Taylor ‘Tens of thousands of these fish once ascended streams in Spring. They are of major cultural importance to the Pomo people who harvested them as a valued food source.’ When you read statements … Continue reading →

By Rusty C. Holleman, Nann A. Fangue, Edward S. Gross, Michael J. Thomas, and Andrew L. Rypel Despite years of study and thousands of research projects, some aspects of the biology of Chinook salmon remain altogether mysterious. One enduring question … Continue reading →

By Karrigan Börk, Andrew L. Rypel, Sarah Yarnell, Ann Willis, Peter B. Moyle, Josué Medellín-Azuara, Jay Lund, and Robert Lusardi This week, news emerged of a State Senate plan that would spend upwards of $1.5B to purchase senior water rights … Continue reading →

By Peter Moyle Few native species are as controversial as Delta Smelt. It is a 3-4 inch translucent fish that lives only in the California Delta, where the Sacramento and San Joaquin rivers meet. This place also happens to be … Continue reading →

by Andrew L. Rypel This blog is a short introduction to a lesser known federal bill that is one of the most significant pieces of fish and wildlife legislation in decades. In Spring of 2021, Rep. Debbie Dingell (D-Mich.) and … Continue reading →

by Francheska Torres, Miranda Tilcock, Alexandra Chu, and Sarah Yarnell The Yolo Bypass is one of two large flood bypasses in California’s Central Valley that are examples of multi-benefit floodplain projects (Figure 1; Serra-Llobet et al., 2022). Originally constructed in the early … Continue reading →

By Erik Porse, Maureen Kerner, Brian Currier, David Babchanik, Danielle Salt, and Julie Mansisidor Stormwater infrastructure in cities is highly visible and serves to mitigate flooding and reduce pollution that reaches local waterbodies. Being so visible, it might be reasonable … Continue reading →

By Alex Rabidoux, Max Stevenson, Peter B. Moyle, Mackenzie C. Miner, Lauren G. Hitt, Dennis E. Cocherell, Nann A. Fangue, and Andrew L. Rypel Putah Creek is a small stream located in the Central Valley that has been extensively modified … Continue reading →