Why does one dropped pair of pliers scatter the whole school?
A sharp bang on the hull couples straight into the water, and sound travels through water almost five times faster than in air. Crappie hear it through the inner ear, amplified by the gas-filled swim bladder acting as a resonator — and because the school reacts as one unit, a single fish flinching turns into the whole school sliding down or off the spot. The good news: schools usually reset within minutes if the noise stops. The lesson is hull discipline — soft-soled shoes, padded floors, no anchor-chain clatter, and drop the trolling motor gently.
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