Gabriel Rossi
Research Scientist, UC Berkeley
Gabriel is a researcher at the University of California, Berkeley (UC Berkeley), and coastal river ecologist for UC Berkeley–California Trout. He studies the ecology of Pacific salmon (Oncorhynchus), focusing his research on the ways that juvenile salmon behavior and life history impact response to river food webs, streamflow, and physical habitat. He also studies applications of food web ecology to salmon population recovery efforts. Gabriel consults with several environmental flow working groups in California; serves on the California State Water Resources Control Board (SWRCB) expert panel for the Eel River; and consults for the SWRCB cannabis instream flow development team. Gabriel completed a doctorate in Mary Power’s lab at UC Berkeley (2020), and a two-year postdoctoral research program in the Grantham Lab at UC Berkeley (June 2020 to February 2023). Before that Gabriel worked as a fisheries hydrologist with McBain Associates, focusing on environmental flow assessments to quantify the timing, duration, magnitude, and frequency of streamflows necessary to recover and sustain anadromous salmonids in projects from the Bay Area to the Klamath River. He has developed hydraulic models, conducted hydrology and food web analysis, performed local and systemic fish passage analyses, and evaluated flow management scenarios using fish bioenergetics and risk assessment tools. Recently he has incorporated 3D videogrammetry, machine learning fish identification, and acoustic telemetry to assess changes in salmonid behavior in response to natural and anthropogenic habitat alteration. Over 14 years as an aquatic ecologist, he has worked with state and federal regulators, municipalities, water districts, native American tribes, agricultural interests, and NGOs to navigate the complex ecological and human factors that influence the recovery of healthy river ecosystems and resilient wild salmon populations.