Which outcome occurs when the swim bladder of a bony fish rapidly expands during ascent?

💡 Explanation

When a fish ascends rapidly, reduced water pressure causes the swim bladder volume to expand according to Boyle's Law, decreasing density and increasing buoyancy, causing uncontrolled floating. Therefore, uncontrolled floating results, rather than torpor, camouflage or oxygen extraction enhancement which involve different physiological mechanisms.

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