Invasive quagga mussel found on Central Oregon reservoir shoreline By Alejandro Figueroa (OPB)June 24, 2026 10:29 p.m.Quagga mussels can reproduce so fast they clog irrigation systems and outcompete native species for resources.📨 Daily news in your inboxSign up today for OPB’s “First Look” – your daily guide to the most important news and culture stories from around the Northwest.EmailPlease leave this field blankSign up