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dc.contributor.authorPinzone, Marianna
dc.contributor.authorAcquarone, Mario
dc.contributor.authorHuyghebaert, Loreen
dc.contributor.authorSturaro, Nicolas
dc.contributor.authorMichel, Loïc N.
dc.contributor.authorSiebert, Ursula
dc.contributor.authorDas, Krishna
dc.date.accessioned2018-09-26T13:36:21Z
dc.date.available2018-09-26T13:36:21Z
dc.date.issued2017-08-15
dc.description.abstract<p><i>Rationale</i>: Intrinsic biogeochemical markers, such as stable isotope ratios of carbon, nitrogen and sulphur, are increasingly used to trace the trophic ecology of marine top predators. However, insufficient knowledge of fractionation processes in tissues continues to hamper the use of these markers.</p> <p><i>Methods</i>: We performed a controlled feeding experiment with eight juvenile hooded seals (<i>Cystophora cristata</i>) that were held on a herring‐based diet (<i>Clupea harengus</i>) for two years. Stable isotope ratios were measured via isotope ratio mass spectrometry in three of their tissues and related to values of these markers in their diet.</p> <p><i>Results</i>: Diet‐tissue isotope enrichment (trophic enrichment factor, TEF) values between dietary herring and seal tissues for carbon (Δ<sup>13</sup>C) were +0.7 ‰ for red blood cells, +1.9 ‰ for hair and +1.1 ‰ for muscle. The TEFs for nitrogen trophic (Δ<sup>15</sup>N) were +3.3 ‰ for red blood cells, +3.6 ‰ for hair and +4.3 ‰ for muscle. For sulphur, the Δ<sup>34</sup>S values were +1.1 ‰ for red blood cells, +1.0 ‰ for hair and +0.9 ‰ for muscle.</p> <p><i>Conclusions</i>: These enrichment values were greater than those previously measured in adult seals. This increase may be related to the higher rate of protein synthesis and catabolism in growing animals. This study is the first report on sulphur isotope enrichment values for a marine mammal species.</p>en_US
dc.description.sponsorshipFNRS (Fonds De La Recherche Scientifique - FNRS – Belgium)en_US
dc.descriptionThis is the peer reviewed version of the following article: Pinzone, M., Acquarone, M., Huyghebaert, L., Sturaro, N., Michel, L.N., Siebert, U. & Das, K. (2017). Carbon, Nitrogen and Sulphur isotopic fractionation in captive juvenile hooded seal (Cystophora cristata): application for diet analysis. <i>Rapid Communications in Mass Spectrometry</i>, 31(20). https://doi.org/10.1002/rcm.7955, which has been published in final form at <a href=https://doi.org/10.1002/rcm.7955> https://doi.org/10.1002/rcm.7955</a>. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.en_US
dc.identifier.citationPinzone, M., Acquarone, M., Huyghebaert, L., Sturaro, N., Michel, L.N., Siebert, U. & Das, K. (2017). Carbon, Nitrogen and Sulphur isotopic fractionation in captive juvenile hooded seal (Cystophora cristata): application for diet analysis. Rapid Communications in Mass Spectrometry, 31(20). https://doi.org/10.1002/rcm.7955en_US
dc.identifier.cristinIDFRIDAID 1489469
dc.identifier.doi10.1002/rcm.7955
dc.identifier.issn0951-4198
dc.identifier.issn1097-0231
dc.identifier.urihttps://hdl.handle.net/10037/13870
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalRapid Communications in Mass Spectrometry
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Kjemi: 440en_US
dc.subjectVDP::Mathematics and natural science: 400::Chemistry: 440en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480en_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480en_US
dc.titleCarbon, Nitrogen and Sulphur isotopic fractionation in captive juvenile hooded seal (Cystophora cristata): application for diet analysisen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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