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Zebra Mussels Have Invaded Lake LBJ and Lake Pflugerville

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According to local media reports, zebra mussels have infested Lake LBJ and Lake Pflugerville. Reports issued by the Texas Parks and Wildlife Department (TPWD) stated that these two Texas Hill Country lakes are in addition to those already noted as being infested, a list which has grown to 17. Zebra mussels are known to clog water intake systems and pipes, as well as stick to docks and boats.

The confirmation that the mussels had infested Lake LBJ happened after approximately 12 of their kind (both adult and juvenile) were discovered close to the Thomas C. Ferguson Power Plant on July 29, 2019. Biologists from both the Lower Colorado River Authority and the TPWD also found them on structures near Kingsland Community Park, Wirtz Dam, and McNair Park. Not only that, but it’s anticipated they’ll spread to Lake Marble Falls, downstream from Lake LBJ.

Zebra Mussels Have Invaded Lake LBJ and Lake Pflugerville

Photo: Wikimedia

The Lake Pflugerville infestation was confirmed when Inland Fisheries staff found adults of the species attached to underwater vegetation while they were in the midst of a survey. “It is disheartening to see zebra mussels spreading higher up the chain of the Highland Lakes in the Colorado River basin, as only boats can move this invasive species upstream to uninvaded reservoirs and downstream dispersal is inevitable,” a TPWD senior scientist told statesman.com.

Zebra Mussels Have Invaded Lake LBJ and Lake Pflugerville

Photo: Facebook/Texas Parks and Wildlife

Known to survive for days on end in residual water, zebra mussels have the ability to travel from lake to lake relatively easy. In addition to that feature, adult zebra mussels can also survive out of water. This means that prior to arriving at or leaving a freshwater lake, river, or stream, sailboats, kayaks, canoes, and other such personal watercrafts are required to be drained and dried to assist in halting the spread. Currently, there isn’t any effective means for selective control or elimination of them once they’re established within a public body of water. Given that info, it’s vitally important to clean, drain, and dry. We all have to work together to prevent the spread of these invaders into new lakes.