One system that has been deadly, is the single snell hook baited with a fathead and brought down to the bottom with a oz. The single hook allows the light-biters to suck the minnow all the way in without resistance. Use this system while drifting in shallower areas where fish tend to be scattered. Moving slowly with an electric motor over structure and dragging this simple rig can work wonders. Pay close attention to species and size regulations on river systems.
Some limits are combined and some are separated by species.
Length limits may vary as well. Always, safety is a primary consideration. Determining if weather conditions are manageable may be more vital at this time of year than any other. Know your limits as well as those of your vessel. Be prepared for uncomfortable conditions and remember that no matter how good the fishing is, your well being is more important.