Last year on March 12th i started to catch alot of crappies as they were beginning to stage for the spawn, and as they stage they start to feed heavily and by my records the surface water temp where is was fishing was 52 degrees....however we had a very cold front come thru that shut them down for 3 days and when they started to eat again i was catching them is 8-12 ft of water that was stained. I think the amount of light in the days now is getting them ready and they are staging in 14-20 ft of water near structure and it is just a matter of a few more degrees and it will be game on!!!