Ethan is a Master’s student in the Hydrologic Sciences Graduate Group. His research investigates the ecological impacts of more than 100 federally-regulated hydropower projects on flow regimes and fish population health in stream systems throughout California. This approach involves characterizing flow regimes using functional flow components as a way to highlight key seasonal aspects of flow patterns that serve as environmental cues for biological processes, such as fish spawning and migration. More broadly, his research evaluates the extent to which all of these hydropower projects have historically and contemporarily complied with minimum streamflow requirements issued by the Federal Energy Regulatory Commission (FERC) in order to provide more informed water management recommendations that optimally support aquatic ecosystem health and various societal needs for involved stakeholders.