full moon and new moon can be triggers to get the spawn going and for crappie to move shallower. just heard that at Crappie U by Barry and found it to be true few days later at my lake. usually bite ends or slows way down hour or so before dark. but as full moon was rising caught the fire out of bigger crappie, so I am a believer. read several so called experts saying the full and new moon's trigger spawning FWIW