Which risk significantly increases in deep-sea fish during rapid ascent due to swim bladder volume changes?

💡 Explanation

During rapid ascent, reduced hydrostatic pressure causes Boyle's Law mediated expansion of the swim bladder, creating internal pressure exceeding tissue strength, leading to barotrauma. Therefore barotrauma results, rather than increased metabolism, narcosis, or hypothermia which occur via different mechanisms or require different environmental stressors.

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