Which mechanism limits vertical swim range during deep dives into low-oxygen stratification zones?

💡 Explanation

During deep dives into low-oxygen zones, anaerobic metabolism increases because oxygen availability is reduced which leads to lactic acid buildup in muscle tissue, hindering muscle function. This limitation of cellular respiration reduces swim performance that results, rather than countercurrent inefficiency, pressure resistance, or dehydration, related to gas uptake, physical damage and osmoregulation mechanisms.

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