Which impairment results when swim bladder barotrauma occurs during rapid ascent in fish lacking a pneumatic duct?

💡 Explanation

When rapid ascent occurs and fish lack a pneumatic duct, swim bladder barotrauma results due to Boyle's Law (pressure decreasing with volume increase), leading to overexpansion, compressing surrounding tissues. Therefore spinal cord compression results rather than rupture, failure or collapse, which arise from alternate pressures or structural weaknesses.

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