FN Archimer Export Format PT J TI Revisiting tolerance to ocean acidification: insights from a new framework combining physiological and molecular tipping points of Pacific oyster BT AF Lutier, Mathieu DI POI BROUSSARD, Carole Gazeau, Frédéric Appolis, Alexis Le Luyer, Jeremy Pernet, Fabrice AS 1:1;2:4;3:2;4:4;5:3;6:1; FF 1:PDG-RBE-PFOM-LPI;2:PDG-RBE-PFOM-LPI;3:;4:;5:PDG-RBE-RMPF;6:PDG-RBE-PFOM-LPI; C1 LEMAR CNRS/UBO/IRD/Ifremer, ZI pointe du diable, CS 10070 F‐29280 Plouzané , France LOV Sorbonne Université, CNRS, Laboratoire d'Océanographie de Villefranche, Villefranche‐sur‐Mer ,France EIO UPF/IRD/ILM/Ifremer, Labex CORAIL, Unité RMPF, Centre Océanologique du Pacifique, Vairao – BP 49 Vairao, Tahiti, Polynésie française LEMAR CNRS/UBO/IRD/Ifremer, ZI pointe du diable, CS 10070 F‐29280 Plouzané , France C2 IFREMER, FRANCE UNIV SORBONNE, FRANCE IFREMER, FRANCE UBO, FRANCE SI BREST ARGENTON TAHITI SE PDG-RBE-PFOM-LPI PDG-RBE-RMPF UM LEMAR EIO IN WOS Ifremer UMR WOS Cotutelle UMR copubli-france copubli-univ-france IF 11.6 TC 14 UR https://archimer.ifremer.fr/doc/00749/86130/91363.pdf https://archimer.ifremer.fr/doc/00749/86130/91364.docx https://archimer.ifremer.fr/doc/00749/86130/91365.xlsx LA English DT Article DE ;acidification;lipidomic;mollusk;reaction norm;threshold;transcriptomic AB Studies on the impact of ocean acidification on marine organisms involve exposing organisms to future acidification scenarios which has limited relevance for coastal calcifiers living in a mosaic of habitats. Identification of tipping points beyond which detrimental effects are observed is a widely generalizable proxy of acidification susceptibility at the populational level. This approach is limited to a handful of studies that focus on only a few macro-physiological traits, thus overlooking the whole organism response. Here we develop a framework to analyze the broad macro-physiological and molecular responses over a wide pH range in juvenile oyster. We identify low tipping points for physiological traits at pH 7.3-6.9 that coincide with a major reshuffling in membrane lipids and transcriptome. In contrast, a drop in pH affects shell parameters above tipping points, likely impacting animal fitness. These findings were made possible by the development of an innovative methodology to synthesize and identify the main patterns of variations in large -omic datasets, fitting them to pH and identifying molecular tipping-points. We propose the broad application of our framework to the assessment of effects of global change on other organisms. PY 2022 PD MAY SO Global Change Biology SN 1354-1013 PU Wiley VL 28 IS 10 UT 000757423000001 BP 3333 EP 3348 DI 10.1111/gcb.16101 ID 86130 ER EF