Will the bass be breeding? If so, then they will knock the crayfish forage base down to level where it is not significant even if crayfish population persists. If you have a mono-sex population of females or males only, then all sorts of doors open to make so crayfish population remains abundant while still providing excellent forage for the bass. You may even be in a situation where habitat modification may be needed to make so crayfish do not self limit at levels below what you need to support good bass growth. Part of that will be promoting quality forage for crayfish themselves.
