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Characterizing respiratory capacity in belugas (Delphinapterus leucas).

Publication ,  Journal Article
Fahlman, A; Epple, A; García-Párraga, D; Robeck, T; Haulena, M; Piscitelli-Doshkov, M; Brodsky, M
Published in: Respiratory physiology & neurobiology
February 2019

We measured respiratory flow, breath duration, and calculated tidal volume (VT) in nine belugas (Delphinapterus leucas, mean measured body mass: 628 ± 151 kg, n = 5) housed in managed care facilities. Both spontaneous (resting at station) and trained maximal respirations (chuffs) were measured. The mean (±s.d.) inspiratory VT for spontaneous breaths (16.7 ± 4.7 l, range: 7.5-18.7 l) was larger than those predicted based on respiratory scaling equations from terrestrial mammals and was 32 ± 10% of estimated total lung capacity (TLCest) based on an equation from static measurements made on a range of cetaceans and pinniped lungs, and 52 ± 18% of estimated vital capacities (VC, mean: 27.7 ± 8.9 l, range: 16.7-40.3 l) based on respiratory measurements obtained during trained maximal respirations. Expiratory flow (V˙exp, spontaneous: 26.1 ± 5.5 l s-1, chuff: 66.8 ± 22.5 l s-1) was significantly higher as compared with inspiratory flow (V˙insp, spontaneous: 22.3 ± 4.6 l s-1, chuff: 30.1 ± 8.4 l s-1), and the maximal expiratory flow recorded was 212 l s-1. The breath duration was shorter for forced breaths (Expiration: 518 ± 101 ms; Inspiration: 905 ± 170 ms; Total: 1423 ± 227 ms) as compared with spontaneous breaths (Expiration: 995 ± 176 ms; Inspiration: 1098 ± 219 ms; Total: 2093 ± 302 ms). These data provide baseline estimates of the respiratory capacity of belugas.

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Published In

Respiratory physiology & neurobiology

DOI

EISSN

1878-1519

ISSN

1569-9048

Publication Date

February 2019

Volume

260

Start / End Page

63 / 69

Related Subject Headings

  • Vital Capacity
  • Tidal Volume
  • Respiratory Function Tests
  • Respiration
  • Physiology
  • Male
  • Female
  • Beluga Whale
  • Animals
  • 3208 Medical physiology
 

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Fahlman, A., Epple, A., García-Párraga, D., Robeck, T., Haulena, M., Piscitelli-Doshkov, M., & Brodsky, M. (2019). Characterizing respiratory capacity in belugas (Delphinapterus leucas). Respiratory Physiology & Neurobiology, 260, 63–69. https://doi.org/10.1016/j.resp.2018.10.009
Fahlman, Andreas, Alexandra Epple, Daniel García-Párraga, Todd Robeck, Martin Haulena, Marina Piscitelli-Doshkov, and Micah Brodsky. “Characterizing respiratory capacity in belugas (Delphinapterus leucas).Respiratory Physiology & Neurobiology 260 (February 2019): 63–69. https://doi.org/10.1016/j.resp.2018.10.009.
Fahlman A, Epple A, García-Párraga D, Robeck T, Haulena M, Piscitelli-Doshkov M, et al. Characterizing respiratory capacity in belugas (Delphinapterus leucas). Respiratory physiology & neurobiology. 2019 Feb;260:63–9.
Fahlman, Andreas, et al. “Characterizing respiratory capacity in belugas (Delphinapterus leucas).Respiratory Physiology & Neurobiology, vol. 260, Feb. 2019, pp. 63–69. Epmc, doi:10.1016/j.resp.2018.10.009.
Fahlman A, Epple A, García-Párraga D, Robeck T, Haulena M, Piscitelli-Doshkov M, Brodsky M. Characterizing respiratory capacity in belugas (Delphinapterus leucas). Respiratory physiology & neurobiology. 2019 Feb;260:63–69.
Journal cover image

Published In

Respiratory physiology & neurobiology

DOI

EISSN

1878-1519

ISSN

1569-9048

Publication Date

February 2019

Volume

260

Start / End Page

63 / 69

Related Subject Headings

  • Vital Capacity
  • Tidal Volume
  • Respiratory Function Tests
  • Respiration
  • Physiology
  • Male
  • Female
  • Beluga Whale
  • Animals
  • 3208 Medical physiology