2 Popular Hill Country Lakes Test Positive for Invasive Zebra Mussels

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The problem with zebra mussels isn’t contained to just the affected lakes. “It’s very unfortunate, not only for the reservoir but also for downstream resources, (in the case of Canyon Lake) including the Guadalupe River and the reservoirs downstream from Canyon Dam,” said Van Zee.

It’s Against the Law to Knowingly (or Unknowingly) Transport Mussels

Zebra mussels on mussel

Photo: Flickr/Wisconsin Dept. of Natural Resources

In Texas, it is unlawful to possess or transport zebra mussels, dead or alive. Boaters are required to drain all water from their boat and on-board receptacles before leaving or approaching a body of fresh water in order to prevent the transfer of zebra mussels that might be inside.

Zebra mussel larvae are microscopic and both adults and larvae can survive for days in or on boats transported from a lake. The requirement to drain applies to all types and sizes of boats whether powered or not: personal watercraft, sailboats, kayaks/canoes or any other vessel used on public waters.

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