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The first marine mammal stranding related to this harmful algal bloom (HAB) was reported on February 21, 2025, and the currently the numbers are over 300. California Ocean Observing System Network HAB monitoring and Alert Program have pulled together their expertise and data to create this event-driven bulletin.  Learn more in our flyer, most importantly […]

With funding from the National Science Foundation, Farallon Institute has created a page dedicated to seabirds as a ‘sentinel species’. Allowing scientists to observe seabirds to further our understanding of the health of the oceans.   

Above: Southern California MOCI, updated through September 2024. Large positive (red) values indicate warmer ocean conditions and weaker upwelling, which benefits Sardine recruitment. Negative (blue) values represent cooler ocean temperatures and strong upwelling, supporting a wide range of species, including kelp, copepods, krill, fish, and seabirds. The West Coast ocean conditions are highly variable, influenced […]

December’s Spotlight features SCCOOS PI, Libe Washburn and High-Frequency Radar (HFR) research! HFR is used to observe the ocean’s surface currents, with applications for oil spill response, public health monitoring, Coast Guard search and rescue efforts, and many more important community services. SCCOOS and CeNCOOS manage a network of HFRs to monitor the California coast. […]

In this video message Rachael Dempsey, NOS Deputy Assistant Administrator for Navigation, Observations, and Positioning, shares news on a historic investment in our national ocean observing system to enhance our nation’s coastal resilience.