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Overstocked Grass Carp Upset Balance of Lake Austin
A harsh winter, birds, and thousands of carp are all reasons Texas Parks and Wildlife believes its last study on Lake Austin found no underwater vegetation.

The lake is a place for recreation, fishing, and escape. It also helps mitigate flooding and its one of the lakes where the city draws water to treat for drinking water. The vegetation on the lake helps prevent erosion, keep water clear, and provides habitat for animals.

As the hydrilla grew, the city kept stocking sterile grass carp to eat it. According to stocking records, 6,000 carp entered Lake Austin in December 2011. In 2012 the city put in more than 17,000 more carp. Then, 9,000 more of the fish went into the lake in May 2013. In those 18 months officials stocked the lake with more carp than in the entire previous seven years combined.

Now officials are putting forth efforts to return environmental balance to the lake.

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Hunters and Anglers May Intentionally Be Causing Hydrilla Invasion - Despite efforts to stem the spread of hydrilla in Kerr Reservoir, officials continue to find new growths of the invasive aquatic plant.


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