Stroke frequencies of emperor penguins diving under sea ice.

  title={Stroke frequencies of emperor penguins diving under sea ice.},
  author={R P van Dam and Paul J Ponganis and Katherine V. Ponganis and David H. Levenson and Greg J. Marshall},
  journal={The Journal of experimental biology},
  volume={205 Pt 24},
During diving, intermittent swim stroke patterns, ranging from burst/coast locomotion to prolonged gliding, represent potential energy conservation mechanisms that could extend the duration of aerobic metabolism and, hence, increase the aerobic dive limit (ADL, dive duration associated with onset of lactate accumulation). A 5.6 min ADL for emperor penguins had been previously determined with lactate measurements after dives of <50 m depth. In order to assess locomotory patterns during such… CONTINUE READING
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