FN Archimer Export Format PT J TI Thermal stress reduces pocilloporid coral resilience to ocean acidification by impairing control over calcifying fluid chemistry BT AF GUILLERMIC, Maxence CAMERON, Louise P. DE CORTE, Ilian MISRA, Sambuddha BIJMA, Jelle DE BEER, Dirk REYMOND, Claire E. WESTPHAL, Hildegard RIES, Justin B. EAGLE, Robert A. AS 1:1,2,3;2:4,5,6;3:1,2;4:7,8;5:9;6:10;7:6,11;8:6,12;9:4,6;10:1,2,3; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:; C1 Univ Calif Los Angeles, Inst Environm & Sustainabil, Dept Atmospher & Ocean Sci, 520 Portola Plaza, Los Angeles, CA 90095 USA. Univ Calif Los Angeles, Dept Earth Planetary & Space Sci, 595 Charles Young Dr E, Los Angeles, CA 90095 USA. Univ Brest Occidentale, LGO, Inst Univ Europe Mer, Rue Dumont Urville, F-29280 Plouzane, France. Northeastern Univ, Marine Sci Ctr, Dept Marine & Environm Sci, 430 Nahant Rd, Nahant, MA 01908 USA. Woods Hole Oceanog Inst, McLean Lab, 360 Woods Hole Rd, Falmouth, MA 02543 USA. Leibniz Ctr ForTrop Marine Res ZMT, Fahrenheitstr 6, D-28359 Bremen, Germany. Indian Inst Sci, Ctr Earth Sci, Bengaluru 560012, Karnataka, India. Univ Cambridge, Dept Earthsci, Godwin Lab Palaeoclimate Res, Cambridge, England. Alfred Wegener Inst, Helmholtz Zentrum Polar & Meeresforsch, Marine Biogeosci, Handelshafen 12, D-27570 Bremerhaven, Germany. Max Planck Inst Marine Microbiol, Celsiusstr 1, D-28359 Bremen, Germany. China Univ Geosci CUG, State Key Lab Biogeol & Environm Geol, 388 Lumo Rd, Wuhan 430074, Peoples R China. Bremen Univ, Dept Geosci, D-28359 Bremen, Germany. C2 UNIV CALIF LOS ANGELES, USA UNIV CALIF LOS ANGELES, USA UBO, FRANCE UNIV NORTHEASTERN, USA WHOI, USA LEIBNIZ CTR TROP MARINE ECOL ZMT, GERMANY INDIAN INST SCI, INDIA UNIV CAMBRIDGE, UK INST A WEGENER, GERMANY INST MAX PLANCK, GERMANY UNIV CHINA GEOSCI CUG, CHINA UNIV BREMEN, GERMANY UM LGO IN DOAJ IF 14.98 TC 32 UR https://archimer.ifremer.fr/doc/00686/79846/82675.pdf https://archimer.ifremer.fr/doc/00686/79846/82676.pdf LA English DT Article AB The combination of thermal stress and ocean acidification (OA) can more negatively affect coral calcification than an individual stressors, but the mechanism behind this interaction is unknown. We used two independent methods (microelectrode and boron geochemistry) to measure calcifying fluid pH (pH(cf)) and carbonate chemistry of the corals Pocillopora damicornis and Stylophora pistillata grown under various temperature and pCO(2) conditions. Although these approaches demonstrate that they record pH(cf) over different time scales, they reveal that both species can cope with OA under optimal temperatures (28 degrees C) by elevating pH(cf) and aragonite saturation state (Omega(cf)) in support of calcification. At 31 degrees C, neither species elevated these parameters as they did at 28 degrees C and, likewise, could not maintain substantially positive calcification rates under any pH treatment. These results reveal a previously uncharacterized influence of temperature on coral pH(cf) regulation-the apparent mechanism behind the negative interaction between thermal stress and OA on coral calcification. PY 2021 PD JAN SO Science Advances SN 2375-2548 PU Amer Assoc Advancement Science VL 7 IS 2 UT 000606331400005 DI 10.1126/sciadv.aba9958 ID 79846 ER EF