Articles | Volume 14, issue 22
Research article
24 Nov 2017
Research article |  | 24 Nov 2017

Coral calcifying fluid aragonite saturation states derived from Raman spectroscopy

Thomas M. DeCarlo, Juan P. D'Olivo, Taryn Foster, Michael Holcomb, Thomas Becker, and Malcolm T. McCulloch

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Cited articles

Addadi, L., Raz, S., and Weiner, S.: Taking advantage of disorder: amorphous calcium carbonate and its roles in biomineralization, Adv. Mater., 15, 959–970, 2003.
Al-Horani, F. A., Al-Moghrabi, S. M., and De Beer, D.: The mechanism of calcification and its relation to photosynthesis and respiration in the scleractinian coral Galaxea fascicularis, Mar. Biol., 142, 419–426,, 2003.
AlKhatib, M. and Eisenhauer, A.: Calcium and Strontium Isotope Fractionation during Precipitation from Aqueous Solutions as a Function of Temperature and Reaction Rate; II. Aragonite, Geochim. Cosmochim. Ac., 209, 320–342,, 2017.
Allison, N., Cohen, I., Finch, A. A., Erez, J., and Tudhope, A. W.: Corals concentrate dissolved inorganic carbon to facilitate calcification, Nature Commun., 5, 5741,, 2014.
Barkley, H. C., Cohen, A. L., Golbuu, Y., Starczak, V. R., DeCarlo, T. M., and Shamberger, K. E.: Changes in coral reef communities across a natural gradient in seawater pH, Sci. Adv., 1, e1500328,, 2015.
Short summary
We present a new technique to quantify the chemical conditions under which corals build their skeletons by analysing them with lasers at a very fine resolution, down to 1/100th the width of a human hair. Our first applications to laboratory-cultured and wild corals demonstrates the complex interplay among seawater conditions (temperature and acidity), calcifying fluid chemistry, and bulk skeleton accretion, which will define the sensitivity of coral calcification to 21st century climate change.
Final-revised paper