The development of diving bradycardia in bottlenose dolphins (Tursiops truncatus)

  title={The development of diving bradycardia in bottlenose dolphins (Tursiops truncatus)},
  author={Shawn R Noren and Veronica Cuccurullo and Terrie M. Williams},
  journal={Journal of Comparative Physiology B},
Bradycardia is an important component of the dive response, yet little is known about this response in immature marine mammals. To determine if diving bradycardia improves with age, cardiac patterns from trained immature and mature bottlenose dolphins (Tursiops truncatus) were recorded during three conditions (stationary respiration, voluntary breath-hold, and shallow diving). Maximum (mean: 117±1 beats·min−1) and resting (mean: 101±5 beats·min−1) heart rate (HR) at the water surface were… CONTINUE READING


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