{"refrec":{"BRefID":380779,"RR":"<b>Brosset, C.; Höche, N.; Witbaard, R.; Nishida, K.; Shirai, K.; Mertz-Kraus, R.; Schöne, B.R.</b> (2023). Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature – implications for (paleo)environmental research? <i>Front. Mar. Sci. 10</i>: 1279164. <a href=\"https://dx.doi.org/10.3389/fmars.2023.1279164\" target=\"_blank\">https://dx.doi.org/10.3389/fmars.2023.1279164</a>","BEntID":378520,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":0,"RefStringPartII":" <i>Front. Mar. Sci. 10</i>: 1279164. <a href=\"https://dx.doi.org/10.3389/fmars.2023.1279164\" target=\"_blank\">https://dx.doi.org/10.3389/fmars.2023.1279164</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Brosset, C.; Höche, N.; Witbaard, R.; Nishida, K.; Shirai, K.; Mertz-Kraus, R.; Schöne, B.R.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Brosset, C. <i>et al.</i>","Englishabstract":"Seawater temperature is an essential quantity for paleoclimatological and paleoecological studies. A potential archive that can provide century-long, temporally well-constrained and high-resolution temperature proxy data is available in the form of bivalve shells. However, the number of well-accepted and robust temperature proxies contained in shells is limited to stable oxygen isotopes and carbonate clumped isotopes. Many studies have therefore investigated the possibility to reconstruct temperature from element/Ca properties, specifically Sr/Ca ratios in case of aragonitic shells. As demonstrated here, in agreement with thermodynamic expectations and the lattice strain model, shell Sr/Ca of laboratory-grown Arctica islandica specimens is strongly positively coupled to water temperature. If ultrastructure-related bias is mathematically eliminated, up to 75% of the variability in shell Sr/Ca data can be explained by water temperature. However, in field-grown specimens, this relationship is superimposed by other environmental variables that can hardly be quantified and mathematically eliminated. The explained variability of Sr/Ca is reduced to merely 26% and the prediction uncertainty too large for reliable temperature estimates. Most likely, the equable, less biased conditions in the laboratory resulted in the production of a more uniform shell ultrastructure (with larger and more elongated biomineral units) which in turn was associated with less variable Sr/Ca values and a stronger link to water temperature. Without a detailed understanding and quantification of the factors controlling ultrastructural variations in field-grown bivalves, it remains impossible to employ shell Sr/Ca of wild A. islandica specimens for precise temperature estimates, merely a qualitative temperature reconstruction seems feasible.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature – implications for (paleo)environmental research?","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2026-06-04 01:31:51.918826","timezone_type":1,"timezone":"+02:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":"bivalve sclerochronology; water temperature proxy; strontium-to-calcium ratio; shell ultrastructure; growth rate","OtherDescriptors":null,"Notes":null,"AnaPub":2023,"MonPub":null,"DateUpdate":"2024-01-16","DateCreate":"2024-01-16","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:001103114900001","VABBcode":null,"OpenAcc":1,"DOI":"10.3389/fmars.2023.1279164"},"refs":null,"anarec":{"AnaID":380779,"PubliDate":2023,"Pagination":"1279164","XtraPublOfAnaID":null,"ISBN":null,"Volume":"10","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":233602,"SerRR":"Frontiers in Marine Science. 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