Lake Zorinsky Zebra Mussel Eradication/Control Project

Adult zebra mussels were discovered during a normal drawdown of Lake Zorinsky in November 2010. Following confirmation of infestation, an additional seven foot drawdown of Lake Zorinsky took place in December 2010, and the lake was drained to the maximum drawdown...

Glenn Cunningham Lake Zebra Mussel Response

Veligers were discovered in water quality samples from Glenn Cunningham Lake in May 2017, and adult zebra mussels were confirmed on samplers in July 2018. The lake was drained in the fall of 2018 to freeze and kill any zebra mussels and was left to naturally refill in...

Safeguarding the West from Invasive Species

In 2007, quagga mussels were detected in the Colorado River (feeding Lake Mead, Lake Mojave, and Lake Havasu) while zebra mussels were found in the San Justo Reservoir in California in 2008. Between 2007 and 2015 monitoring and sampling was performed in 425 lakes...

Watercraft Inspections and Decontamination in the West

This program facilitates watercraft inspections and decontamination in the Western region of the United States. It offers watercraft inspection and decontamination trainings for various types of vessels focused on hot water with high pressure.  The program also...

Manual Removal of Invasive Mussels in Lake Michigan

In 2016, mussel removal began in Sleeping Bear Dunes where approximately 1 million mussels were removed and approximately 40 m2 were cleared. The project also assessed the response of biota (Algal harmful blooms, microbial communities, fish and invertebrate) after the...

Lake Waco Outreach and Response Plan

Zebra mussels were detected in Lake Waco in 2014 on private boat ramps. Plastic tarps (Polyvinylchloride) were applied on the lakebed in October 2014. Plastic tarps were installed for 4 months to create anoxic conditions and to suffocate zebra mussels by depriving...

Minnesota Pilot Project – Christmas Lake

In 2014, Christmas Lake was treated with a combination of Zequanox®, some physical removal, EarthTec QZ® (copper product), and potassium chloride. During post-treatment monitoring, adult mussels were found outside of the treatment area. In 2015, Christmas Lake was...

Minnesota Pilot Project – Lake Zumbro

In 2000, water levels in Lake Zumbro, MN and Edinboro Lake, PA were lowered roughly 1.5 m during the fall and winter seasons. Zebra mussels were found post-treatment, surviving in remaining water.