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Published on Oct 1, 2013
Quagga mussels were first found in Arizona in Lake Mead in January of 2007. They originally came from Eurasia and became established in the Great Lakes in the 1980s. Since being discovered, these prolific invaders have spread rapidly. A single adult quagga mussel can produce up to one million larvae in a single year. They colonize rapidly on hard surfaces and can ruin boat motors and clog water intake structures, such as pipes and screens, thereby impacting pumping capabilities for power and water treatment plants. Learn what is happening in Arizona with the Quagga Mussel invasion.