Energy expenditure of freely swimming adult green turtles (Chelonia mydas) and its link with body acceleration
| Autor: | Stéphane Ciccione, Virginie Plot, Benoit Gineste, Yan Ropert-Coudert, Katia Ballorain, Manfred R. Enstipp, Akiko Kato, Myriam Milbergue, Jean-Yves Georges |
|---|---|
| Přispěvatelé: | Département Ecologie, Physiologie et Ethologie (DEPE-IPHC), Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Kélonia - Observatoire des tortues marines, ANR-07-BLAN-0220,ESTVOI,ECOLOGIE SPATIALE DES TORTUES VERTES DE L'OCEAN INDIEN(2007) |
| Rok vydání: | 2011 |
| Předmět: |
diving
0106 biological sciences Aging Physiology Acceleration PDBA Aquatic Science Biology 010603 evolutionary biology 01 natural sciences sea turtle energetics Respirometry Oxygen Consumption Animal science Respiration accelerometry Animals 14. Life underwater Molecular Biology resting metabolic rate Swimming Ecology Evolution Behavior and Systematics respiratory frequency exercise body acceleration Ecology [SDV.BID.EVO]Life Sciences [q-bio]/Biodiversity/Populations and Evolution [q-bio.PE] 010604 marine biology & hydrobiology Energetics Temperature Reproducibility of Results Water Aquatic animal Turtles Energy expenditure oxygen consumption rate 13. Climate action Insect Science Ectotherm [SDE]Environmental Sciences Basal metabolic rate Respiratory frequency Female Animal Science and Zoology Seasons Energy Metabolism |
| Zdroj: | Journal of Experimental Biology Journal of Experimental Biology, The Company of Biologists, 2011, 214 (23), pp.4010-4020. ⟨10.1242/jeb.062943⟩ |
| ISSN: | 1477-9145 0022-0949 |
| DOI: | 10.1242/jeb.062943 |
| Popis: | Marine turtles are globally threatened. Crucial for the conservation of these large ectotherms is a detailed knowledge of their energy relationships, especially their at-sea metabolic rates, which will ultimately define population structure and size. Measuring metabolic rates in free-ranging aquatic animals, however, remains a challenge. Hence, it is not surprising that for most marine turtle species we know little about the energetic requirements of adults at sea. Recently, accelerometry has emerged as a promising tool for estimating activity-specific metabolic rates of animals in the field. Accelerometry allows quantification of the movement of animals (ODBA/PDBA, overall/partial dynamic body acceleration), which, after calibration, might serve as a proxy for metabolic rate. We measured oxygen consumption rates (V(O(2))) of adult green turtles (Chelonia mydas; 142.1±26.9 kg) at rest and when swimming within a 13 m-long swim channel, using flow-through respirometry. We investigated the effect of water temperature (T(w)) on turtle and tested the hypothesis that turtle body acceleration can be used as a proxy for V(O(2)). Mean mass-specific V(O(2)) (sV(O(2))) of six turtles when resting at a T(w) of 25.8±1.0°C was 0.50±0.09 ml min(-1) kg(-0.83). sV(O(2))increased significantly with T(w) and activity level. Changes in sV(O(2)) were paralleled by changes in respiratory frequency (f(R)). Deploying bi-axial accelerometers in conjunction with respirometry, we found a significant positive relationship between sV(O(2)) and PDBA that was modified by T(w). The resulting predictive equation was highly significant (r(2)=0.83, P |
| Databáze: | OpenAIRE |
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