October 30, 2025 — Nearly every day for the past 20 years, scientists from UC Santa Cruz and the National Oceanic and Atmospheric Administration (NOAA) have waded into Scott Creek, a 12-mile-long burbling stream in Santa Cruz County just a few miles north of Davenport.
Dressed in waders and toting bags and buckets, these scientists navigate the stream’s chilly waters and muddy banks in search of coho salmon. Along the coast of central California, coho salmon are endangered. But the young salmon in Scott Creek may hold the key to the species’ recovery.
As the southernmost population of coho in the state, the salmon in Scott Creek are adapted to warmer and drier conditions than their more northern cousins. By studying the evolution, ecology, and genetics of this population, scientists at UCSC and NOAA hope to gain insights that could help them ensure the survival of the species throughout California.
The project at Scott Creek is one of many that UCSC and NOAA have undertaken together to prevent the extinction of California’s iconic salmon. Since joining forces 25 years ago, the federal agency and the university have become the largest and most strategic force fighting to conserve salmon in California. But with climate change, habitat loss, overfishing, invasive species, and poor water management posing an ever-greater threat to salmon survival, the salmon-saving team continues to have its work cut out for it.