11:54 AM - 12:09 PM
[BPT03-09] Mathematical analysis of proton, carbon, and calcium transport during calcification process of benthic foraminifera
Keywords:benthic foraminifera, calcification, proton transport, mathematical analysis
To understand the calcification process, we investigate the dynamics of the pH around the foraminifer. The visualized spatial pH distribution shows that the calcification accompanies a rapid decrease of the surrounding pH, which implies that the calcification accompanies active proton pumping. The resultant spatial pH distribution is used to estimate the flux of proton released out of the protective envelope. Combing the estimated proton flux and the calcium carbonate responsible for a new chamber, we propose that the proton/H+ exchange process is the key process driving the foraminiferal calcification.