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Invasive Zebra Mussels Could Cost Millions if they Reach Reservoirs
An insidious invasive mollusk is threatening to disrupt Texas ecosystems and clog municipal water systems.

Zebra mussels have spread southward through rivers and streams and now infest 14 Texas water bodies along five river basins. Canyon Lake is the infected water body nearest to Corpus Christi.

The spread of zebra mussels has serious economic consequences, recreational and environmental impacts. Dallas has spent millions trying to clear its mussel-encrusted infrastructure. But zebra mussels also threaten native freshwater mussels and other aquatic species, while degrading water clarity and causing harmful algal blooms.

Mussels colonies can cover shoreline rocks and litter beaches with sharp shells, clog water intakes, damage or increase maintenance on hydroelectric facilities, and damage boats and motors left in infested waters.



 
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Persistent High Lake Levels Set Stage for Big Flood - Heavy rains caused widespread flooding in the Madison area. When Lake Monona crested, officials began harvesting the aquatic vegetation in an effort to increase the water flow out of the chain of lakes. Staff used ten mechanical weed harvesters to remove over 270 loads of aquatic plants. That doubled the flow of water leaving the chain of lakes, so more water is leaving the Yahara chain than what’s entering, allowing lake levels to stabilize.


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