Reconstructing daily temperatures from growth rates of the intertidal bivalve mollusk Chione cortezi (northern Gulf of California, Mexico)

Bernd R. Schöne, Joceline C Lega, Karl Flessa, David H. Goodwin, David L. Dettman

Research output: Contribution to journalArticle

67 Citations (Scopus)

Abstract

We establish a model for the reconstruction of average daily sea surface temperatures from calcification rates of an intertidal bivalve mollusk. The rate of shell production in Chione cortezi (Carpenter, 1864, ex Sloat MS) is mainly controlled by water temperature, ontogenetic age and the effect of tidal cycles. Statistical methods developed by dendrochronologists can successfully extract the water temperature signal from daily growth increment chronologies. After removal of noise, the growth rates are expressed as scaled daily growth indices. Average daily water temperatures during the first half of the year are highly correlated with the scaled daily growth index values of recent and subrecent specimens, using the multi-valued function presented here. Increment width analysis can reconstruct daily average water temperatures with a mean error of less than 3%. This technique provides an independent method for reconstructing temperatures in fossil specimens of species with living representatives and can supplement high-resolution temperature reconstructions based on geochemical analysis.

Original languageEnglish (US)
Pages (from-to)131-146
Number of pages16
JournalPalaeogeography, Palaeoclimatology, Palaeoecology
Volume184
Issue number1-2
DOIs
StatePublished - Aug 1 2002

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Gulf of California
bivalve
Bivalvia
water temperature
Mexico
temperature
shell (molluscs)
calcification
tidal cycle
surface temperature
chronology
statistical analysis
sea surface temperature
fossils
fossil
shell
gulf
extracts
methodology
rate

Keywords

  • δO
  • Growth index
  • Growth rate
  • Paleoecology
  • Sclerochronology

ASJC Scopus subject areas

  • Palaeontology

Cite this

Reconstructing daily temperatures from growth rates of the intertidal bivalve mollusk Chione cortezi (northern Gulf of California, Mexico). / Schöne, Bernd R.; Lega, Joceline C; Flessa, Karl; Goodwin, David H.; Dettman, David L.

In: Palaeogeography, Palaeoclimatology, Palaeoecology, Vol. 184, No. 1-2, 01.08.2002, p. 131-146.

Research output: Contribution to journalArticle

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