As boat traffic increases at Lake Texoma during the Fourth of July weekend, officials from the Texas Parks and Wildlife Department (TPWD) and local game wardens are emphasizing the importance of preventing the spread of invasive aquatic species. They are advising boaters to adhere to the practice of "clean, drain, and dry" for their boats and equipment after each use.
Zebra mussels, a harmful invasive shellfish, are currently found in 40 Texas lakes across seven river basins. These mussels can attach to hard surfaces, causing damage to boats and water systems, while also disrupting local ecosystems and harming native species. Daron Blackerby, a Game Warden in Grayson County, noted that once zebra mussels establish themselves in a lake, there are no effective methods for control or eradication.
Another invasive species of concern is giant salvinia, a free-floating fern that can form dense mats on the water's surface, complicating activities like fishing, boating, and swimming. To combat the spread of these species, boaters are required to drain all water from their vessels, including bait containers, and remove any invasive plants before traveling to another body of water. Failure to comply with these regulations can result in a Class C misdemeanor charge, according to Blackerby.
TPWD has outlined three key steps for boaters to follow before moving between lakes: first, clean the boat and trailer by removing all plants, mud, and debris; second, drain all water by pulling the drain plug; and third, dry the boat completely, allowing it to air out for at least a week. If a week is not feasible, a high-pressure rinse can help mitigate the risk of spreading invasive species.
Boaters who have stored their vessels in infested waters should contact TPWD at (512) 389-4848 prior to moving their boats, as they may pose a significant risk of spreading zebra mussels.
