A native of India that first found its way to the U.S. as vegetation for aquariums in the 1950s, hydrilla was abundant in East Texas lakes 20 years ago. It was a recreational nightmare around boat docks and swim areas where it surfaces and forms thick mats. On the other hand, edges and holes were
Elodea is a plant commonly found in aquariums that, if released in the wild, will dominate certain lake or river habitats, choking out native vegetation and altering the food web at all levels. It increases sedimentation rate, allowing more sediment to settle out of the water. And it can decrease the dissolved oxygen concentration in