when Mother Nature opens the north door to fall breezes that cool shoreline waters, bass in impoundments move to warmer habitats in coves and creeks, and into the backs of bays. These migrations are tied to the fall movements of their critter menu, which consists mostly of shad, crayfish and minnows of various types. As the chilled surface water becomes heavier and sinks, the warmer water moves up in the water column, attracting forage fish to shallower, warmer areas where they can still feed on algae and plankton. This phenomenon is called the "fall turnover." When their food sources move toward warmer water, so do bass, which must lay up fat tissue in the fall to tide them through winter. Depending on water clarity and light penetration, bass might be encountered at various depths, and different tactics are necessary to catch them.