With boating season in high gear, efforts continue to protect local reservoirs from aquatic invasive species. Nevada Irrigation District (NID) is working to keep quagga and zebra mussels out of its reservoirs through boater education and a self-inspection program, as well as quarterly monitoring at Scotts Flat, Rollins and Combie reservoirs. No quagga or zebra mussels have been detected, according NID Hydrographer Ashley Vander Meer.