title: Responses of calcification of massive and encrusting corals to past, present, and near-future ocean carbon dioxide concentrations.
abstract: In this study, we report the acidification impact mimicking the pre-industrial, the present, and near-future oceans on calcification of two coral species (Porites australiensis, Isopora palifera) by using precise pCO2 control system which can produce acidified seawater under stable pCO2 values with low variations. In the analyses, we performed Bayesian modeling approaches incorporating the variations of pCO2 and compared the results between our modeling approach and classical statistical one. The results showed highest calcification rates in pre-industrial pCO2 level and gradual decreases of calcification in the near-future ocean acidification level, which suggests that ongoing and near-future ocean acidification would negatively impact coral calcification. In addition, it was expected that the variations of parameters of carbon chemistry may affect the inference of the best model on calcification responses to these parameters between Bayesian modeling approach and classical statistical one even under stable pCO2 values with low variations.
authors.affiliation: Department of Bioresources Engineering, Okinawa National College of Technology, 905 Henoko, Nago-City, Okinawa 905-2192, Japan. Electronic address: iguchi.a0218@gmail.com.
authors.forename: Akira
authors.initials: A
authors.lastname: Iguchi
authors.affiliation: Center for Environmental Biology and Ecosystem Studies, National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan.
authors.forename: Naoki H
authors.initials: NH
authors.lastname: Kumagai
authors.affiliation: Faculty of Science, University of the Ryukyus, Nishihara, JICA/JST SATREPS, Okinawa 903-0213, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Nakamura
authors.affiliation: Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8567, Japan.
authors.forename: Atsushi
authors.initials: A
authors.lastname: Suzuki
authors.affiliation: Sesoko Station, Tropical Biosphere Research Center, University of the Ryukyus, Okinawa 905-0227, Japan.
authors.forename: Kazuhiko
authors.initials: K
authors.lastname: Sakai
authors.affiliation: Center for Global Environmental Research, National Institute for Environmental Studies, Tsukuba, Ibaraki 305-8506, Japan.
authors.forename: Yukihiro
authors.initials: Y
authors.lastname: Nojiri
mesh_terms: D000818:Animals; D037421:Anthozoa / Q000187:drug effects / Q000378:metabolism*; D001499:Bayes Theorem; D002113:Calcification, Physiologic / Q000187:drug effects*; D002245:Carbon Dioxide / Q000008:administration & dosage*; D006863:Hydrogen-Ion Concentration; D008962:Models, Theoretical; D009792:Oceans and Seas; D012623:Seawater / Q000737:chemistry
chemical_list: D002245:Carbon Dioxide
keywords: Bayesian modeling; Calcification; Coral; Ocean acidification; The industrial revolution