Which outcome occurs when pneumatic duct constricts in a marine pufferfish swim bladder system?

💡 Explanation

When the pneumatic duct constricts, the inflation/deflation rate via gas gland is limited because gas exchange rate is directly impacted impeding buoyancy adjustments. Therefore buoyancy regulation rate decreases, rather than osmotic changes, stopping oxygen diffusion, or accelerating CO2 excretion, all require different physiological mechanisms.

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