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On the WaterOn the Water
Understanding the Chart
Thermoclines
A rough defi nition of a thermocline is a break in water where the
water temperature changes at a faster rate than the water above it. The
thermocline is usually displayed as a gray level, as shown below.
One of the unique features offered by GARMIN is See-Thru technology.
A benefit of See-Thru technology is that it allows the Fishfinder 240 Blue
to see fish inside thermoclines.
Thermocline
190-00200-00_B.indd 02/19/02, 11:30 AM34