The first discovery of golden mussels in North America at Rough and Ready Island near Stockton in San Joaquin County has water managers throughout California on the alert, including the Yuba Water Agency, which manages New Bullards Bar Reservoir. On Tuesday, the Yuba Water Agency announced that it will launch a new watercraft screening pilot program later this summer at New Bullards Bar Reservoir in Yuba County. The pilot program aims to prevent the spread of the golden mussel, a highly invasive species found in the Sacramento-San Joaquin Delta last fall that could pose  a significant ecological and economic threat to the Yuba River watershed. … Thus far, all the sightings of golden mussel have been concentrated in the delta, although five additional sightings have been reported in the San Joaquin Valley.

Other golden mussels news:

• Yuba Net (Nevada City, Calif.): Yuba Water announces watercraft screening at New Bullards Bar Reservoir
• Action News Now (Chico, Calif.): Watercraft screenings for invasive golden mussel to begin at New Bullards Bar Reservior
• KDRV (Medford, Ore.): United States Forest Service asks water recreationists to help stop the spread of invasive golden mussel