Aquatic nuisance species pose a serious threat to the recreational and natural resources of Lake Tahoe.  Aquatic weeds and invasive mussels spread by hitchhiking on boats, trailers and equipment.  Aquatic nuisance species pose a serious threat to the recreational and natural resources of Lake Tahoe.  Aquatic weeds and invasive mussels spread by hitchhiking on boats, trailers and equipment. 

Why Should I Care?

• EURASION WATERMILFOIL and CURLEYLEAF PONDWEED grow in thick mats in marinas, clogging motors and making swimming dangerous.
• Plant fragments left on boats can regenerate into new plants.
• ZEBRA/QUAGGA MUSSELS cause structural damage to piers and docks.
• ZEBRA/QUAGGA MUSSELS can survive thirty days out of water in the Tahoe Basin due to low humidity.

Call 1-888-TAHO-ANS to report quagga or zebra mussels or for more information.

Stop the spread!  Clean.  Drain.  Dry.

• Clean the hull with pressurized hot water, removing all dirt, plant and animal material from your boat motor, trailer, anchors, fishing gear and dive gear.
• Dispose of foreign matter above the waterline on dry land or in a trash can.
• Drain the water from your moat motor, live well and bilge on land before you leave the immediate area.
• Flush the boat hull, motor and bilges with hot water.

Check all these places for hitchhikers:

• Trailer
• Anchor
• Dock lines
• Live wells
• Bilge
• Under Vehicle
• Rollers
• Hull
• Axle
• Motor

Quagga mussels have been found in CA and NV.  Don't let them come to Lake Tahoe!