Sr/Ca in shells of laboratory-grown bivalves (Arctica islandica) serves as a proxy for water temperature - implications for (paleo)environmental research?

Publikationstyp:

Zeitschriftenaufsatz

Metadaten:

Autoren

Cornelia Brosset
Nils Hoche
Rob Witbaard
Kozue Nishida
Kotaro Shirai
Regina Mertz-Kraus
Bernd R Schone

Autoren-URL

https://www.webofscience.com/api/gateway?GWVersion=2&SrcApp=fis-test-1&SrcAuth=WosAPI&KeyUT=WOS:001103114900001&DestLinkType=FullRecord&DestApp=WOS_CPL

DOI

10.3389/fmars.2023.1279164

eISSN

2296-7745

Externe Identifier

Clarivate Analytics Document Solution ID: Y1RT2

Zeitschrift

FRONTIERS IN MARINE SCIENCE

Schlüsselwörter

bivalve sclerochronology
water temperature proxy
strontium-to-calcium ratio
shell ultrastructure
growth rate

Artikelnummer

ARTN 1279164

Datum der Veröffentlichung

2023

Status

Published

Titel

Sr/Ca in shells of laboratory-grown bivalves (<i>Arctica islandica</i>) serves as a proxy for water temperature - implications for (paleo)environmental research?

Sub types

Article

Ausgabe der Zeitschrift

Datenquelle: Web of Science (Lite)

Andere Metadatenquellen:

Abstract

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.

Autoren

Cornélia Brosset
Nils Höche
Rob Witbaard
Kozue Nishida
Kotaro Shirai
Regina Mertz-Kraus
Bernd R Schöne

DOI

10.3389/fmars.2023.1279164

eISSN

2296-7745

Zeitschrift

Frontiers in Marine Science

Online publication date

2023

Status

Published online

Herausgeber

Frontiers Media SA

Herausgeber URL