Field energetics and lung function in wild bottlenose dolphins, Tursiops truncatus, in Sarasota Bay Florida
| Autor: | Micah Brodsky, Deborah Fauquier, Katherine McHugh, Andreas Fahlman, Randall S. Wells, Aaron A. Barleycorn, Michael J. Moore, Jason B. Allen, Jay C. Sweeney |
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| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
0301 basic medicine Bioenergetics field metabolic rate spirometry diving physiology 010603 evolutionary biology 01 natural sciences 03 medical and health sciences Animal science pulmonary function test Respiration marine mammals lcsh:Science Tidal volume Multidisciplinary biology Energetics tidal volume Bottlenose dolphin biology.organism_classification 030104 developmental biology Basal metabolic rate Field metabolic rate lcsh:Q Allometry |
| Zdroj: | Royal Society Open Science, Vol 5, Iss 1 (2018) |
| ISSN: | 2054-5703 |
| Popis: | We measured respiratory flow rates, and expired O2in 32 (2–34 years, body mass [Mb] range: 73–291 kg) common bottlenose dolphins (Tursiops truncatus) during voluntary breaths on land or in water (between 2014 and 2017). The data were used to measure the resting O2consumption rate (V˙O2, range: 0.76–9.45 ml O2 min−1 kg−1) and tidal volume (VT, range: 2.2–10.4 l) during rest. For adult dolphins, the restingVT, but notV˙O2, correlated with body mass (Mb, range: 141–291 kg) with an allometric mass-exponent of 0.41. These data suggest that the mass-specificVTof larger dolphins decreases considerably more than that of terrestrial mammals (mass-exponent: 1.03). The average restingsV˙O2was similar to previously published metabolic measurements from the same species. Our data indicate that the resting metabolic rate for a 150 kg dolphin would be 3.9 ml O2 min−1 kg−1, and the metabolic rate for active animals, assuming a multiplier of 3–6, would range from 11.7 to 23.4 ml O2 min−1 kg−1.\absbreak Our measurements provide novel data for resting energy use and respiratory physiology in wild cetaceans, which may have significant value for conservation efforts and for understanding the bioenergetic requirements of this species. |
| Databáze: | OpenAIRE |
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