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Invasive zebra mussels have been detected at Medina Lake, and Lake Placid will be re-classified as “fully infested.” Infested status signifies that there is now evidence of an established, reproducing population of zebra mussels in the lake.
The detection in Medina Lake, located near Bandera, marks the first introduction of invasive zebra mussels in the San Antonio River Basin. On Feb. 11, a member of the public submitted a report with a photo to TPWD of a zebra mussel located at a boat ramp near the mouth of Haby’s Cove. Shortly after the winter storms, TPWD staff conducted searches at the site where the original mussel was found and near Red Cove Marina. Biologists located two zebra mussels attached to rocks along the shoreline near the site where the first mussel was discovered.
A status map showing all lakes where zebra mussels have been found in Texas is online at tpwd.texas.gov/zebramussels. For more information on how to properly clean, drain and dry boats and equipment, visit the TPWD YouTube channel for a short instructional video.
TPWD and partners monitor for zebra mussels in Texas lakes, but anyone who finds them in lakes where they haven’t been found before should report them by emailing photos and location information to aquaticinvasives@tpwd.texas.gov to help identify new introductions. Anyone who spots them on boats, trailers or equipment that is being moved should immediately report the sighting to TPWD at (512) 389-4848.
To learn more about zebra mussels and other invasive species in Texas,
visit tpwd.texas.gov/StopInvasives. Information for marinas and owners of boats stored in the water on lakes with zebra mussels can also be found on the TPWD website.
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