Cane Pole Crappies One of the sought-after fish on our Iowa lakes are slab crappies. When the month of May comes and the temperatures move into the upper 50s, crappies begin to move shallow into their spawning areas. Optimum spawning temperatures are between 68-72 degrees. Kevan Paul, who owns Kevan Pauls Guide Service and guides … Continue reading Cane Pole Crappies