04/30/2025
The UC Davis Center for Watershed Sciences (CWS) was recently featured in a CBS News Bay Area segment about the research being conducted on salmon ear bones - known as otoliths - and about the restoration efforts that brought the salmon back to Putah Creek. 🐟
Like tree rings, each layer of the salmon's ear bone carries a chemical map of where the fish spent its life. In the Rypel Lab at the Center for Watershed Sciences, otoliths collected from Putah Creek were examined to discover when the salmon were born, when they started migrating to the sea, how long they were in the ocean, and when they returned. Lauren Hitt, a graduate student researcher at the center, found that most of the salmon spawned from a distant hatchery, and ended their lifecycle in Putah Creek.
Read more about the project and watch the feature at the link in our bio or visit: https://environment.ucdavis.edu/news/CWS-Rypel-Lab-Otoliths