In 2008, CalTrout and UC Davis produced SOS: California’s Native Fish Crisis, a landmark report on the state of California’s trout, salmon, and steelhead populations. The research for the document was led by Dr. Peter Moyle and his team at UC Davis’ Center for Watershed Studies. The report’s findings indicated the state’s native salmonids were in unprecedented decline with many teetering toward the brink of extinction – an alarm bell that signaled the deteriorating health of the state’s rivers and streams (that also provide drinking water to millions of Californians).
In short, the report found that California’s native fish were in crisis and suggested that, if trends continued, 65% of native salmon, steelhead, and trout species would be extinct this century.
This 2008 report was updated and expanded in 2017 with SOS II: Fish in Hot Water
Learn More: State of the Salmonids
#7 in our 50th Anniversary Series
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Peter Moyle is the Distinguished Professor Emeritus in the Department of Wildlife, Fish and Conservation Biology and Associate Director of the Center for Watershed Sciences, at UC Davis. He is author or co-author of more than 240 publications, including the definitive Inland Fishes of California (2002). He is co-author of the 2017 book, Floodplains: Processes and Management for Ecosystem Services. His research interests include conservation of aquatic species, habitats, and ecosystems, including salmon; ecology of fishes of the San Francisco Estuary; ecology of California stream fishes; impact of introduced aquatic organisms; and use of floodplains by fish.
Robert Lusardi is the California Trout/UC Davis Wild and Coldwater Fish Researcher focused on establishing the basis for long-term science specific to California Trout’s wild and coldwater fish initiatives. His work bridges the widening gap between academic science and applied conservation policy, ensuring that rapidly developing science informs conservation projects throughout California. Dr. Lusardi resides at the UC Davis Center for Watershed Sciences and works closely with Dr. Peter Moyle on numerous projects to help inform California Trout conservation policy. His recent research interests include Coho salmon on the Shasta River, the ecology of volcanic spring-fed rivers, inland trout conservation and management, and policy implications of trap and haul programs for anadromous fishes in California.

Patrick Samuel is the Conservation Program Coordinator for California Trout, a position he has held for almost two years, where he coordinates special research projects for California Trout, including the State of the Salmonids report. Prior to joining CalTrout, he worked with the Fisheries Leadership & Sustainability Forum, a non-profit that supports the eight federal regional fishery management councils around the country. Patrick got his start in fisheries as an undergraduate intern with NOAA Fisheries Protected Resources Division in Sacramento, and in his first field job as a crew member of the California Department of Fish & Wildlife’s Wild and Heritage Trout Program.