The Yolo County Board of Supervisors on Tuesday approved a local state of emergency declaration in response to the invasive golden mussel species.
The first North American detection of the species occurred in the Port of Stockton in October 2024, and the mussels have since spread as far north as West Sacramento, where they were spotted in the port last month.
Yolo County joins Sacramento, Kern, and San Joaquin counties in declaring local emergencies over the species. West Sacramento Mayor Martha Guerrero is calling for immediate action to remove the mussels as they overtake crucial city infrastructure, including drainage pipes and pump stations, putting the city at risk of flooding…