Literaturdatenbank
Literaturdatenbank |
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Gatten, R. E. (1984). Aerobic and anaerobic metabolism of freely-diving loggerhead musk turtles (sternotherus minor). Herpetologica, 40(1), 1–7.
Added by: Admin (24 Aug 2008 18:46:32 UTC) |
| Resource type: Journal Article BibTeX citation key: Gatten1984 View all bibliographic details  |
Categories: General Keywords: Kinosternidae, Physiologie = physiology, Schildkröten = turtles + tortoises, Sternotherus, Sternotherus minor Creators: Gatten Collection: Herpetologica |
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| Abstract |
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Sternotherus minor O2 uptake from the atmosphere and from the water and total body lactate concentration were measured for freely-diving and surfacing loggerhead musk turtles at 22.degree. C. These turtles generate lactate rapidly during vigorous swimming but do not accumulate lactate during long periods of voluntary diving and surfacing. Their great anaerobic capacity is most probably utilized during pursuit of prey, emergencies and possibly aquatic hibernation. Under minimal resting conditions, aquatic O2 uptake supplies only 12% of the total oxygen consumed. Pulmonary ventilation provides the majority of the oxygen needed during periods of quiet diving, swimming and surfacing. When these data are compared with those from forcibly-submerged loggerhead musk turtles, it is clear that involuntary immersion elicits a rate of extraction of O2 from the water 3 times that seen in voluntary dives.
Added by: Admin |