The Texas Parks and Wildlife Department and several other organizations began establishing native aquatic vegetation, which expanded until 2006 when the lake again was stocked with grass carp to control about 2,000 acres of hydrilla. Since that time, about 32 percent of the 135,000 triploid grass carp are calculated to have died through natural mortality.
About 10,000 mature native plants have been planted in the lake since 2008 and are expanding — particularly water willow, according to TPWD inland fisheries biologist Mark Webb.
“Long term, there will probably always be a low number of grass carp in Lake Conroe,” Webb said, “but the goal of all the partners — including anglers, agencies, homeowners, and marina operators — is to find the balance where native vegetation can continue to grow in Lake Conroe, providing habitat for fish and other wildlife as well as water-quality benefits, while hydrilla stays under control.”
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