A newly detected invasive mussel is posing a potential threat to Lake County’s water bodies. The Lake County Water Resources Department, and Watershed Protection District urge residents and visitors to Clear Lake, and other Lake County water bodies, to be aware and on the lookout for invasive golden mussels (Limnoperna fortunei). The newly detected invasive mussel (freshwater bivalve) found in several locations in the Port of Stockton and in the Sacramento-San Joaquin Delta region. On Oct. 17, the California Department of Water Resources reported finding attached, adult mussels at a sample site location in the Port of Stockton. Mussel specimens were sent to UC Davis Genomic Variation Laboratory and confirmed to be golden mussels, originally from China and Southeast Asia; the species had not previously been detected in North America.