Developmental cardiorespiratory physiology of the air-breathing tropical gar, Atractosteus tropicus.

@article{Burggren2016DevelopmentalCP,
  title={Developmental cardiorespiratory physiology of the air-breathing tropical gar, Atractosteus tropicus.},
  author={Warren W Burggren and Gil Martinez Bautista and Susana Camarillo Coop and Gabriel M{\'a}rquez Couturier and Salom{\'o}n P{\'a}ramo Delgadillo and R Garc{\'i}a and Carlos Alfonso {\'A}lvarez Gonz{\'a}lez},
  journal={American journal of physiology. Regulatory, integrative and comparative physiology},
  year={2016},
  volume={311 4},
  pages={
          R689-R701
        }
}
The physiological transition to aerial breathing in larval air-breathing fishes is poorly understood. We investigated gill ventilation frequency (fG), heart rate (fH), and air breathing frequency (fAB) as a function of development, activity, hypoxia, and temperature in embryos/larvae from day (D) 2.5 to D30 posthatch of the tropical gar, Atractosteus tropicus, an obligate air breather. Gill ventilation at 28°C began at approximately D2, peaking at ∼75 beats/min on D5, before declining to ∼55… CONTINUE READING

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