Which outcome results when swim bladder vascularization is severely reduced in fish moving to oxygen-poor water?

💡 Explanation

When swim bladder vascularization is reduced, oxygen diffusion into the bladder decreases because there is less surface area for gas exchange which impairs the fish's ability to adjust buoyancy. Therefore, reduced buoyancy control results, rather than increased or enhanced metabolic responses, which rely on muscle activity and tissue properties.

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