PMID: 11607278Feb 15, 1992Paper

Calcification in marine molluscs: how costly is it?

Proceedings of the National Academy of Sciences of the United States of America
A R Palmer

Abstract

Although crucial to our understanding of skeletal evolution in marine invertebrates, the cost of calcification has remained elusive for a simple reason: CaCO3 is an inorganic material. Its cost thus derives solely from the metabolic expenses of accumulating, transporting, and precipitating CaCO3 and cannot normally be separated from other metabolic costs. Traditionally, calcification cost has been ignored and total shell cost has been assumed to derive solely from skeletal organic matrix. The cost estimated here was permitted by the substantial natural variation in shell thickness in two rocky-shore gastropods (Nucella lamellosa and Nucella lapillus). In both the field and laboratory, data from three separate experiments revealed that groups of snails producing extra shell material under a particular set of experimental conditions also consumed extra food. The cost of calcification was estimated by computing the extra energy assimilated per unit extra shell produced at a common rate of tissue growth and then subtracting the cost of the organic matrix. At 1-2 J/mg of CaCO3, the calcification cost reported here is roughly 5% of that for the predominantly proteinaceous organic fraction of molluscan shells on a per-gram basis. This...Continue Reading

References

Jan 1, 1981·The Proceedings of the Nutrition Society·A J Webster
Jun 1, 1988·Proceedings of the National Academy of Sciences of the United States of America·R D Appleton, A R Palmer

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Citations

Dec 3, 2013·Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology·Antonio Osuna-MascaróFrédéric Marin
Aug 17, 2011·Proceedings of the National Academy of Sciences of the United States of America·Kristy J KroekerTodd R Martz
Dec 6, 2012·Proceedings of the National Academy of Sciences of the United States of America·Benjamin MarieCaroline Montagnani
Oct 23, 2009·Proceedings. Biological Sciences·Paul E Bourdeau
Apr 16, 2010·Proceedings. Biological Sciences·Sarah NienhuisChristopher D G Harley
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Feb 19, 2000·Proceedings of the National Academy of Sciences of the United States of America·G C Trussell, L D Smith
Jan 19, 2016·Scientific Reports·Laura RamajoCarlos M Duarte
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Jul 3, 2013·Global Change Biology·Annaliese HettingerBrian Gaylord
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Oct 2, 2012·Micron : the International Research and Review Journal for Microscopy·Michael ZuykovGalina Kolyuchkina
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Dec 25, 2016·Evolution; International Journal of Organic Evolution·Tomonari Kaji, A Richard Palmer

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