With permission from Texas Parks and Wildlife Department (TPWD), a group called Friends of Lake Austin released 3000 more grass-eating carp into Lake Austin.
The carp release was the third of its kind this summer, bringing the total number of grass-eating carp to 11,300 in Lake Austin.
“We feel like this 11,300 fish that we’ve put in the lake should get control or should at least lower the amount of hydrilla that is in the lake,” said Mary Gilroy, an environmental scientist with the City of Austin.
Gilroy told KVUE that in April there was an estimated 560 acres of hydrilla in Lake Austin. In July, a count by the Texas Parks and Wildlife showed the area had changed by 20 acres, which Gilroy says is relatively good news.
“That indicates to us that the fish are having some impact, and we’re hoping now that that larger number of 11, 000 plus fish that are in the lake that we’ll see more of a decrease in hydrilla,” added Gilroy.
Hydrilla is a non-native plant which was introduced into Lake Austin in 1999 when someone dumped their aquarium into the water.
The grass grows tall under water and thrives in hot weather. The long grassy weed gets caught up in boat propellers and can create hazards for swimmers who can get caught in the stringy weed.