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Article Dans Une Revue Scientific Reports Année : 2023

Differences in carbonate chemistry up-regulation of long-lived reef-building corals

1 LSCE - Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette]
2 CSM - Centre Scientifique de Monaco
3 LIA ROPSE - Laboratoire International Associé Réponse des Organismes et Populations face au Stress Environnemental - Université Côte d’Azur - Centre Scientifique de Monaco
4 GEOTRAC - Géochrononologie Traceurs Archéométrie
5 CNR-ISP - Institute of Polar Sciences [Venezia-Mestre]
6 SZN - Stazione Zoologica Anton Dohrn
7 Institute of Paleobiology [Warsaw]
8 GEDI - Géochimie Des Impacts
9 LM2S (CEA, LIST) - Laboratoire Modélisation et Simulation de Systèmes (CEA, LIST)
10 CYBIOM - Cycles biogéochimiques marins : processus et perturbations
11 CRIOBE - Centre de recherches insulaires et observatoire de l'environnement
12 Fondation Tara Ocean
13 IMEV - Institut de la Mer de Villefranche
14 School of Marine Sciences, University of Maine, Orono, ME
15 Shimoda Marine Research Center
16 University of Maine - School of Marine Sciences
17 GOSEE - Global Oceans Systems Ecology & Evolution - Tara Oceans
18 IBENS - Institut de biologie de l'ENS Paris
19 ADMM - Adaptation et diversité en milieu marin
20 Weizmann Institute of Science [Rehovot, Israël]
21 IRCAN - Institut de Recherche sur le Cancer et le Vieillissement
22 CHU Nice [Cimiez]
23 LECOB - Laboratoire d'Ecogéochimie des environnements benthiques
24 LECOB - Laboratoire d'Ecogéochimie des environnements benthiques
25 EMBL-EBI - European Bioinformatics Institute [Hinxton]
26 Institute of Microbiology and Swiss Institute of Bioinformatics
27 Microbiology, School of Biological and Chemical Sciences, University of Galway, Ireland
28 OSU - Oregon State University
29 Department of Biology, University of Konstanz, Konstanz
30 JACOB - Institut de Biologie François JACOB
Patrick Wincker

Résumé

With climate projections questioning the future survival of stony corals and their dominance as tropical reef builders, it is critical to understand the adaptive capacity of corals to ongoing climate change. Biological mediation of the carbonate chemistry of the coral calcifying fluid is a fundamental component for assessing the response of corals to global threats. The Tara Pacific expedition (2016–2018) provided an opportunity to investigate calcification patterns in extant corals throughout the Pacific Ocean. Cores from colonies of the massive Porites and Diploastrea genera were collected from different environments to assess calcification parameters of long-lived reef-building corals. At the basin scale of the Pacific Ocean, we show that both genera systematically up-regulate their calcifying fluid pH and dissolved inorganic carbon to achieve efficient skeletal precipitation. However, while Porites corals increase the aragonite saturation state of the calcifying fluid (Ωcf) at higher temperatures to enhance their calcification capacity, Diploastrea show a steady homeostatic Ωcf across the Pacific temperature gradient. Thus, the extent to which Diploastrea responds to ocean warming and/or acidification is unclear, and it deserves further attention whether this is beneficial or detrimental to future survival of this coral genus.
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Dates et versions

cea-04170119 , version 1 (25-07-2023)

Identifiants

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Marine Canesi, Éric Douville, Paolo Montagna, Marco Taviani, Jarosław Stolarski, et al.. Differences in carbonate chemistry up-regulation of long-lived reef-building corals. Scientific Reports, 2023, 13 (1), pp.11589. ⟨10.1038/s41598-023-37598-9⟩. ⟨cea-04170119⟩
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