Corals adapted to extreme and fluctuating seawater pH increase calcification rates and have unique symbiont communities ...

Ocean acidification (OA) is a severe threat to coral reefs mainly by reducing their calcification rate. Identifying the resilience factors of corals to decreasing seawater pH is of paramount importance to predict the survivability of coral reefs in the future. This study compared corals adapted to v...

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Bibliographic Details
Main Authors: Tanvet, Clément, Camp, Emma, Sutton, Jill, Houlbrèque, Fanny, Thouzeau, Gérard, Rodolfo-Metalpa, Riccardo
Format: Dataset
Language:English
Published: Dryad 2023
Subjects:
FOS Biological sciences
Ocean acidification OA
coral
coral physiology
adaptation
Symbiodiniaceae
Analogues
New Caledonia
Calcification
Ocean acidification
Online Access:https://dx.doi.org/10.5061/dryad.zgmsbccg8
https://datadryad.org/stash/dataset/doi:10.5061/dryad.zgmsbccg8
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Summary:Ocean acidification (OA) is a severe threat to coral reefs mainly by reducing their calcification rate. Identifying the resilience factors of corals to decreasing seawater pH is of paramount importance to predict the survivability of coral reefs in the future. This study compared corals adapted to variable pHT (i.e., 7.23–8.06) from the semi-enclosed lagoon of Bouraké, New Caledonia, to corals adapted to more stable seawater pHT (i.e., 7.90-8.18). In a 100-day aquarium experiment, we examined the physiological response and genetic diversity of Symbiodiniaceae from three coral species (Acropora tenuis, Montipora digitata and Porites sp.) from both sites under three stable pHNBS conditions (8.11, 7.76, 7.54) and one fluctuating pHNBS regime (between 7.56 and 8.07). Bouraké corals consistently exhibited higher growth rates than corals from the stable pH environment. Interestingly, A. tenuis from Bouraké showed the highest growth rate under the 7.76 pHNBS condition, whereas for M. digitata and Porites sp. from ... : See the manuscript for details. ...

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