FWIW, A goodly number of them died when the water dropped out. The zebra mussels being in the lake is most definitely NOT a good thing, but it is not the end of fishing at the lake either.
i expect that the numbers is Zebra mussels will wax and wane, but I don't think the ZM's are fully dispersed yet. The worst is yet to come. I remain hopeful that big numbers of them will be nibbled on by panfish, drum, and catfish.