title: Coral reef calcification: carbonate, bicarbonate and proton flux under conditions of increasing ocean acidification.
abstract: Data on calcification rate of coral and crustose coralline algae were used to test the proton flux model of calcification. There was a significant correlation between calcification (G) and the ratio of dissolved inorganic carbon (DIC) to proton concentration ([DIC] : [H(+)] ratio). The ratio is tightly correlated with [CO3(2-)] and with aragonite saturation state (Ωa). An argument is presented that correlation does not prove cause and effect, and that Ωa and [CO3(2-)] have no basic physiological meaning on coral reefs other than a correlation with [DIC] : [H(+)] ratio, which is the driver of G.
authors.affiliation: Hawaii Institute of Marine Biology, University of Hawaii, , PO Box 1346, Kaneohe, HI 96744, USA. jokiel@hawaii.edu
authors.forename: P L
authors.initials: PL
authors.lastname: Jokiel
mesh_terms: D000818:Animals; D037421:Anthozoa / Q000502:physiology*; D002254:Carbonates / Q000737:chemistry*; D000461:Rhodophyta / Q000502:physiology*; D012623:Seawater / Q000737:chemistry*
chemical_list: D002254:Carbonates
keywords: aragonite saturation state; calcification; coral; crustose coralline algae; ocean acidification; proton flux