Quick actions by boaters and paddlers this year helped prevent the dangerous golden mussel and other aquatic invasive species from entering the Lake Tahoe watershed, according to agencies leading the Lake Tahoe Aquatic Invasive Species (AIS) program. The Tahoe Regional Planning Agency (TRPA) and Tahoe Resource Conservation District (Tahoe RCD), which manage the watercraft inspection program, reported that inspectors performed more than 4,700 decontaminations in 2025, a 60 percent increase compared to the previous year.