Oxygen isotopic variations in modern cetacean teeth and bones: implications for ecological, paleoecological, and paleoclimatic studies

Ciner, Burcu; Wang, Yang; Parker, William C.

doi:10.1007/s11434-015-0921-x

Cited by 18 publications

(18 citation statements)

References 57 publications

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“…3a). Along the same lines, the maximum δ 18 O p difference of 1.8 ‰ measured between two bones of the North Atlantic short-beaked common dolphin can result in an δ 18 O sw overestimation of 1.7 ‰ when applying the fractionation equation published by Ciner et al (2016): δ 18 O w = 0.95317 (± 0.03293) δ 18 O p -17.971 (± 0.605), r = 0.97253 (Fig. 3b).…”

Section: Implications For Extant and Extinct Marine Vertebratesmentioning

confidence: 75%

“…3b). It is noteworthy that existing fractionation equations available for chondrichthyans and osteichthyans or cetaceans were established mixing various skeletal elements including axial or appendicular bones and teeth (Longinelli and Nuti, 1973;Kolodny et al, 1983;Yoshida and Miyazaki, 1991;Lécuyer et al, 2013;Ciner et al, 2016). In order to perform accurate palaeoceanographic reconstructions, existing fractionation equations will therefore need to be updated to take into account regional heterothermies.…”

Section: Implications For Extant and Extinct Marine Vertebratesmentioning

confidence: 99%

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Intra-skeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

Séon¹,

Amiot

Suan

et al. 2022

Biogeosciences

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Abstract. Strategies used by marine vertebrates to regulate their body temperature can result in local variations, and the knowledge of these regional heterothermies is crucial for better understanding the thermophysiologies of extant and extinct organisms. In order to investigate regional heterothermies in vertebrates, we analysed the oxygen isotope composition of phosphatic skeletal elements (δ18Op) of two endothermic fishes (Thunnus thynnus and Xiphias gladius) and three dolphins (two Delphinus delphis delphis and one Cephalorhynchus commersonii kerguelensis). We observed a consistent link between δ18Op variations and temperature heterogeneities recorded by classical methods. Our δ18Op data indicate that: (i) bone hydroxylapatite of the axial skeleton of dolphins mineralise at a warmer temperature than that of the appendicular one, (ii) the skull is the warmest body region in X. gladius, and (iii) T. thynnus possesses high body temperature in the skull and visceral mass region. These results demonstrate the possibility of tracking regional heterothermies in extant marine vertebrates using the δ18Op, paving the way to direct assessment of thermophysiological specificities of both living and extinct vertebrates. From a palaeoenvironmental perspective, the significant observed δ18Op variability questions the use of some taxa or random skeletal elements for the reconstruction of palaeoceanographic parameters such as seawater temperature and δ18O.

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Section: Implications For Extant and Extinct Marine Vertebratesmentioning

confidence: 75%

Section: Implications For Extant and Extinct Marine Vertebratesmentioning

confidence: 99%

Intra-skeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

Séon¹,

Amiot

Suan

et al. 2022

Biogeosciences

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show abstract

“…We made informed choices for each division (see above) but recognise that it would be worth applying additional methods to constrain water δ 18 O. 'Clumped isotope' (Δ 47 ) analysis (e.g., Winkelstern et al 2017) and the δ 18 O of homeotherm phosphate (e.g., Walliser et al 2015;Ciner et al 2016) are promising tools.…”

Section: Growth Breaksmentioning

confidence: 99%

LIFE HISTORY, ENVIRONMENT AND EXTINCTION OF THE SCALLOPCAROLINAPECTEN EBOREUS(CONRAD) IN THE PLIO-PLEISTOCENE OF THE U.S. EASTERN SEABOARD

Johnson

Valentine

Leng

et al. 2019

Palaios

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“…3A). In the same idea, the maximum δ 18 Op difference of 1.8 ‰ measured between two bones of the North Atlantic short-beaked common dolphin can result in an δ 18 Osw underestimation of 1.7 ‰ when applying the fractionation equation published by Ciner et al (2016;Fig. 3B).…”

Section: Implications For Extant and Extinct Marine Vertebratesmentioning

confidence: 98%

“…3B). It is noteworthy that existing fractionation equations available for chondrichthyans and osteichthyans or cetaceans were established mixing various skeletal elements including axial or appendicular bones and teeth (Longinelli and Nuti, 1973;Kolodny et al, 1983;Yoshida and Miyazaki, 1991;Lécuyer et al, 2013;Ciner et al, 2016). In order to perform accurate paleoceanographic reconstructions, existing fractionation equations will therefore need to be updated to take into account regional heterothermies.…”

Section: Implications For Extant and Extinct Marine Vertebratesmentioning

confidence: 99%

Intraskeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

Séon¹,

Amiot

Suan

et al. 2022

Preprint

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Abstract. Strategies used by marine vertebrates to regulate their body temperature can result in local variations, and the knowledge of these regional heterothermies is crucial for better understanding the thermophysiologies of extant and extinct organisms. In order to investigate regional heterothermy in vertebrates, we analysed the oxygen isotope composition of phosphatic skeletal elements (δ18Op) of two poikilothermic (Atlantic bluefin tuna and swordfish) and three homeothermic endotherms (dolphins). We observed a consistent link between δ18Op variations and temperature heterogeneities recorded by classical methods. Our δ18Op data indicate that: (i) bone hydroxyapatite of the axial skeleton of dolphins mineralize at a warmer temperature than that of the appendicular one, (ii) the skull is the warmest body region in swordfish, and (iii) Atlantic bluefin tuna possesses high body temperature in the skull and visceral mass region. These results demonstrate the possibility of tracking regional heterothermies in extant marine vertebrates using the δ18Op, paving the way to direct assessment of thermophysiological specificities of both living and extinct vertebrates. From a paleoenvironmental perspective, the significant observed δ18Op variability questions the use of some taxa or random skeletal elements for the reconstruction of paleoceanographic parameters such as seawater temperature and δ18O.

show abstract

Oxygen isotopic variations in modern cetacean teeth and bones: implications for ecological, paleoecological, and paleoclimatic studies

Cited by 18 publications

References 57 publications

Intra-skeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

Intra-skeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

LIFE HISTORY, ENVIRONMENT AND EXTINCTION OF THE SCALLOPCAROLINAPECTEN EBOREUS(CONRAD) IN THE PLIO-PLEISTOCENE OF THE U.S. EASTERN SEABOARD

Intraskeletal variability in phosphate oxygen isotope composition reveals regional heterothermies in marine vertebrates

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