Invasive Golden Mussel Threatens California's Delta Ecosystem

The golden mussel, detected for the first time in North America, poses a significant risk to water infrastructure and biodiversity in California.

The golden mussel was first found on October 17 at Rough and Ready Island near Stockton and has since spread to O’Neill Forebay in Merced County.
This invasive species is known to clog water supply pipes, potentially affecting water delivery to 30 million people and millions of acres of farmland.
Originating from China and Southeast Asia, the mussels form dense colonies that filter nutrients from the water, disrupting native ecosystems.
Efforts to contain the mussel include vessel inspections and enhanced cleaning of the State Water Project infrastructure to prevent further spread.
Biologists warn that without immediate eradication efforts, the mussel could outcompete native species and cause extensive ecological damage.