This research investigates how the alga Epithemia sustains productivity in California's Eel River by fixing atmospheric nitrogen. Using stable isotope analysis, it shows that Epithemia supplies almost all the nitrogen supporting algal growth, revealing a critical ecological process underpinning river food webs and the conservation of salmon ecosystems.

This research explores biofiltration as a sustainable alternative to chemical water treatment. By supplying bacteria with nutrients like nitrogen and phosphorus, it improves removal of harmful organic matter. Results show a 20% efficiency increase, reducing chemical use and risks, and offering a cost-effective solution for safe drinking water worldwide.