John Williams, fisheries biologist in Williamsburg, can tell you the numbers of fish/eggs necessary to stock, but I would only be guessing. Walleye are hatched in jars that tumble the eggs with a very basic filtering system. The cost difference between hatching walleye vs stripers would be a push, but the fisheries folks could probably give you an exact dollar amoount. However, it's not an astronomical amount of money.