I am starting a lake association that will involve working with Texas Parks and Wildlife and the Water board to inprove the fishery at a North Texas lake. The lake has huge level swings as much as 20 feet in a year so vegetation is non existent. Tie into this the lake is in a dry, dusty/sand environment which further complicates the issue. I think vegetation is very important and will work as a nursery. If you are familiar with floating docks with polystyrene, that is sort of where I am thinking I have to look. I envision sinking heavy concrete weights in 30-40' of water with one or two chains reaching up the the surface conectting to a floating structure that would house lily pads. Before I re-invent the wheel is there such a beast out there and can you suggest a web site to help. I am aware that I have to get the water boards and TP&W's OK before I proceed. Any help would truly be appreciated. BTW, it is a 13,000 acre lake. Thanks!!!