Reports

Dolphin lung collapse and intramuscular circulation during free diving: evidence from nitrogen washout

Science  07 Dec 1979:
Vol. 206, Issue 4423, pp. 1182-1183
DOI: 10.1126/science.505001

Abstract

Intramuscular nitrogen tensions in Tursiops truncatus after a schedule of repetitive ocean dives suggest a lung collapse depth of about 70 meters and suggest that intramuscular circulation is maintained during unrestrained diving in the open ocean. Therefore, the bottle-nosed dolphin is not protected by lung collapse from the decompression hazards of dives to depths shallower than 70 meters.

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