AEROBIC AND ANAEROBIC METABOLISM DURING VOLUNTARY DIVING IN WEDDELL SEALS - EVIDENCE OF PREFERRED PATHWAYS FROM BLOOD-CHEMISTRY AND BEHAVIOR
AEROBIC AND ANAEROBIC METABOLISM DURING VOLUNTARY DIVING IN WEDDELL SEALS - EVIDENCE OF PREFERRED PATHWAYS FROM BLOOD-CHEMISTRY AND BEHAVIOR
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DOI：
10.1007/bf00691568
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发表时间：
1980-01-01
期刊：
影响因子：
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通讯作者：
SINNETT, EE
中科院分区：
文献类型：
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作者：
KOOYMAN, GL;WAHRENBROCK, EA;SINNETT, EE
潜水后动脉乳酸浓度与静息水平没有差异，除非前一次潜水超过 20-25 分钟。乳酸峰值浓度与潜水持续时间相关。只有 2.7% 的自由活动海豹的潜水时间超过 26 分钟。长时间潜水时体温显着下降，低至 34.9 度。 C. 潜水后动脉 Hb 浓度 (22.7 g%) 显着高于静息动物的浓度 (17.4 g%)。潜水后血糖总是高于静息水平。 pH 值处于正常哺乳动物范围内，除非经过长时间潜水；在这些情况下，pH 值降至 6.8。血气分析处于正常哺乳动物范围内；根据静息呼吸暂停值，在长时间潜水期间，动脉氧分压可能会降至非常低的水平。
Post-dive arterial lactic acid concentrations were not different from resting levels unless the previous dive exceeded 20-25 min. Peak lactate concentration was correlated to dive durations. Only 2.7% of the dives of free-ranging seals exceed 26 min. There was a notable drop in body temperature during prolonged dives to as low as 34.9.degree. C. Arterial Hb concentrations immediately after dives (22.7 g%) were significantly higher than concentrations in resting animals (17.4 g%). Blood glucose after dives always rose above resting levels. pH was in the normal mammalian range except after very long dives; in these cases the pH fell as low as 6.8. Blood gases were in the normal mammalian range; based on resting apneic values arterial partial pressure of O2 may drop to remarkably low levels during prolonged dives.