It is not unusual to find immature eggs in female crappie or other fish at this time of the year. Although greatly diminished in size outside of the spawning season, female fish retain their egg sacs (ovaries) that contain eggs that will mature in the future. In crappie, those eggs will be held until spawning in late March or April of next year. The mature eggs will be located near the center of the ovary, with progressively less-mature eggs toward the outside. The spawning will begin with the right combination of day length, temperature and water level in the lake.