FN Archimer Export Format PT J TI High pCO2 promotes coral primary production BT AF Biscéré, T. Zampighi, M. Lorrain, Anne Jurriaans, S. Foggo, A. Houlbrèque, F. Rodolfo-Metalpa, R. AS 1:1;2:1;3:2;4:3;5:4;6:1;7:1; FF 1:;2:;3:;4:;5:;6:;7:; C1 ENTROPIE IRD - Université de La Réunion - CNRS, Nouméa 98848, New Caledonia Univ Brest, CNRS, IRD, Ifremer, LEMAR, 29280 Plouzané, France College of Science and Engineering, James Cook University, Townsville, Queensland, Australia Marine Biology and Ecology Research Centre, School of Biological and Marine Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK C2 IRD, FRANCE IRD, FRANCE UNIV JAMES COOK, AUSTRALIA UNIV PLYMOUTH, UK UM LEMAR IN WOS Cotutelle UMR copubli-france copubli-europe copubli-int-hors-europe IF 2.869 TC 21 UR https://archimer.ifremer.fr/doc/00509/62051/66205.pdf https://archimer.ifremer.fr/doc/00509/62051/66206.pdf LA English DT Article CR CARIOCA CARIOCA 3 BO Alis DE ;ocean acidification;coral reefs;acclimatization;metabolic flexibility;CO2 seeps AB While research on ocean acidification (OA) impacts on coral reefs has focused on calcification, relatively little is known about effects on coral photosynthesis and respiration, despite these being among the most plastic metabolic processes corals may use to acclimatize to adverse conditions. Here, we present data collected between 2016 and 2018 at three natural CO2 seeps in Papua New Guinea where we measured the metabolic flexibility (i.e. in hospite photosynthesis and dark respiration) of 12 coral species. Despite some species-specific variability, metabolic rates as measured by net oxygen flux tended to be higher at high pCO2 (ca 1200 µatm), with increases in photosynthesis exceeding those of respiration, suggesting greater productivity of Symbiodiniaceae photosynthesis in hospite, and indicating the potential for metabolic flexibility that may enable these species to thrive in environments with high pCO2. However, laboratory and field observations of coral mortality under high CO2 conditions associated with coral bleaching suggests that this metabolic subsidy does not result in coral higher resistance to extreme thermal stress. Therefore, the combined effects of OA and global warming may lead to a strong decrease in coral diversity despite the stimulating effect on coral productivity of OA alone. PY 2019 PD JUN SO Biology Letters SN 1744-9561 PU The Royal Society VL 15 IS 7 UT 000479136400001 DI 10.1098/rsbl.2018.0777 ID 62051 ER EF