Articles | Volume 12, issue 23
Biogeosciences, 12, 6869–6880, 2015
https://doi.org/10.5194/bg-12-6869-2015
Biogeosciences, 12, 6869–6880, 2015
https://doi.org/10.5194/bg-12-6869-2015

Research article 01 Dec 2015

Research article | 01 Dec 2015

pH up-regulation as a potential mechanism for the cold-water coral Lophelia pertusa to sustain growth in aragonite undersaturated conditions

M. Wall et al.

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Cited articles

Adkins, J. F., Boyle, E. A., Curry, W. B., and Lutringer, A.: Stable isotopes in deep-sea corals and a new mechanism for "vital effects", Geochem. Cosmochem. Ac., 67, 1129–1143, 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.
Anagnostou, E., Huang, K., You, C., Sikes, E. L., and Sherrell, R. M.: Evaluation of boron isotope ratio as a pH proxy in the deep sea coral Desmophyllum dianthus?: Evidence of physiological pH adjustment, Earth Planet. Sci. Lett., 349/350, 251–260, 2012.
Bates, N. R., Best, M. H. P., Neely, K., Garley, R., Dickson, A. G., and Johnson, R. J.: Detecting anthropogenic carbon dioxide uptake and ocean acidification in the North Atlantic Ocean, Biogeosciences, 9, 2509–2522, https://doi.org/10.5194/bg-9-2509-2012, 2012.
Blamart, D., Rollion-Bard, C., Meibom, A., Cuif, J.-P., Juillet-Leclerc, A., and Dauphin, Y.: Correlation of boron isotopic composition with ultrastructure in the deep-sea coral Lophelia pertusa: Implications for biomineralization and paleo-pH, Geochemistry, Geophys. Geosyst., 8, 1–11, 2007.
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Short summary
We investigated the ability of cold-water corals to deal with changes in ocean pH. We uniquely combined morphological assessment with boron isotope analysis to determine if changes in growth are related to changes in control of calcification pH. We found that the cold-water coral Lophelia pertusa can maintain the skeletal morphology, growth patterns as well as internal calcification pH. This has important implications for their future occurrence and explains their cosmopolitan distribution.
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