Heart rate and aerobic metabolism in Humboldt penguins, Spheniscus humboldti, during voluntary dives.

@article{Butler1984HeartRA,
  title={Heart rate and aerobic metabolism in Humboldt penguins, Spheniscus humboldti, during voluntary dives.},
  author={Patrick J. Butler and Anthony J Woakes},
  journal={The Journal of experimental biology},
  year={1984},
  volume={108},
  pages={419-28}
}
Heart rate and aerobic metabolism have been recorded from three Humboldt penguins, Spheniscus humboldti, freely diving on a freshwater pond (9 X 4.6 X 2.7 m deep), using an implanted radiotransmitter and an open circuit respirometer. Oxygen uptake at mean dive duration (46.2s) was 26% greater than the resting value, but the difference was not statistically significant. Heart rate was also similar to the resting value. It is concluded that voluntary dives of penguins are completely aerobic and… CONTINUE READING
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