On the Water

Understanding the Chart

Thermoclines

One of the unique features offered by GARMIN is See-Thru® technol- ogy. See-Thru® technology allows the Fishfinder 160 to see through thermoclines and helps locate fish where they live, and fish love the thermocline.

A rough definition of a thermocline is a break in water where the water temperature changes faster than the water above it. The thermocline usually displays as a gray level as shown below.

Thermocline

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