A thermocline sets up when warmer water on top no longer circulates with cooler water underneath. Let's say the thermocline is at 30 feet. The warmer water 0 to 30 holds oxygen, but is warmer than fish prefer. The cooler water is oxygen poor, but have a more pleasant temp that fish like. Some fish are tolerant of the cooler layer and may travel in it, while most stage near the 30 foot depth. The cooler water 30 to the Bottom becomes a layer less traveled for the fish. The thermocline becomes of bit of a stopping point. Look for fish staged in open water at the thermocline or above. If chasing whites or hybrids, look for areas where the lake bottom plateaus just above the thermocline where the fish can chase bait and press them against the bottom and feed.
Capt. Craig Copeland
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