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dc.contributor.authorZarkogiannis, Stergios D.
dc.contributor.authorIwasaki, Shinya
dc.contributor.authorRae, James William Buchanan
dc.contributor.authorSchmidt, Matthew W.
dc.contributor.authorMortyn, P. Graham
dc.contributor.authorKontakiotis, George
dc.contributor.authorHertzberg, Jennifer E.
dc.contributor.authorRickaby, Rosalind E.M.
dc.identifier.citationZarkogiannis , S D , Iwasaki , S , Rae , J W B , Schmidt , M W , Mortyn , P G , Kontakiotis , G , Hertzberg , J E & Rickaby , R E M 2022 , ' Calcification, dissolution and test properties of modern planktonic foraminifera from the central Atlantic Ocean ' , Frontiers in Marine Science , vol. 9 , 864801 .
dc.identifier.otherBibtex: 10.3389/fmars.2022.864801
dc.identifier.otherORCID: /0000-0003-3904-2526/work/114023259
dc.descriptionThis research was supported in part by a Royal Society Newton International postdoctoral Fellowship to SZ from the Royal Society of London. JWBR acknowledges funding from the European Research Council under the European Union’s Horizon 2020 research and innovation program (grant agreement 805246). We also acknowledge support from U.K. NERC Grant (PUCCA) NE/V011049/1.en
dc.description.abstractThe mass of well-preserved calcite in planktonic foraminifera shells provides an indication of the calcification potential of the surface ocean. Here we report the shell weight of 8 different abundant planktonic foraminifera species from a set of core-to sediments along the Mid-Atlantic Ridge. The analyses showed that near the equator, foraminifera shells of equivalent size weigh on average 1/3 less than those from the middle latitudes. The carbonate preservation state of the samples was assessed by high resolution X-ray microcomputed tomographic analyses of Globigerinoides ruber and Globorotalia truncatulinoides specimens. The specimen preservation was deemed good and does not overall explain the observed shell mass variations. However, G. ruber shell weights might be to some extent compromised by residual fine debris internal contamination. Deep dwelling species possess heavier tests than their surface-dwelling counterparts, suggesting that the weight of the foraminifera shells changes as a function of the depth habitat. Ambient seawater carbonate chemistry of declining carbonate ion concentration with depth cannot account for this interspecies difference. The results suggest a depth regulating function for plankton calcification, which is not dictated by water column acidity.
dc.relation.ispartofFrontiers in Marine Scienceen
dc.subjectPlanktonic foraminiferaen
dc.subjectShell weighten
dc.subjectX-ray microtomography (µCT)en
dc.subjectShell bulk densityen
dc.subjectRelative shell densityen
dc.subjectBuoyancy regulationen
dc.subjectGC Oceanographyen
dc.subjectAquatic Scienceen
dc.subjectOcean Engineeringen
dc.subjectEnvironmental Science (miscellaneous)en
dc.subjectGlobal and Planetary Changeen
dc.subjectWater Science and Technologyen
dc.titleCalcification, dissolution and test properties of modern planktonic foraminifera from the central Atlantic Oceanen
dc.typeJournal articleen
dc.contributor.sponsorEuropean Research Councilen
dc.contributor.institutionUniversity of St Andrews. School of Earth & Environmental Sciencesen
dc.contributor.institutionUniversity of St Andrews. Centre for Energy Ethicsen
dc.contributor.institutionUniversity of St Andrews. St Andrews Isotope Geochemistryen
dc.description.statusPeer revieweden

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