Articles | Volume 19, issue 19
https://doi.org/10.5194/bg-19-4767-2022
https://doi.org/10.5194/bg-19-4767-2022
Research article
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12 Oct 2022
Research article | Highlight paper |  | 12 Oct 2022

Early life stages of a Mediterranean coral are vulnerable to ocean warming and acidification

Chloe Carbonne, Steeve Comeau, Phoebe T. W. Chan, Keyla Plichon, Jean-Pierre Gattuso, and Núria Teixidó

Data sets

Seawater carbonate chemistry and the larval and juvenile development of the Mediterranean azooxanthellate coral Astroides calycularis C. Carbonne, S. Comeau, S., P. T. W. Chan, K. Plichon, J.-P. Gattuso, and N. Teixidó https://doi.org/10.1594/PANGAEA.948263

Video supplement

Spawning of a larva from the mouth of Astroides calycularis female polyp C. Carbonne, S. Comeau, P. Chan, K. Plichon, K., J.-P. Gattuso, and N. Teixidó https://doi.org/10.5446/58541

One-day old swimming larvae of Astroides calycularis C. Carbonne, S. Comeau, P. Chan, K. Plichon, K., J.-P. Gattuso, and N. Teixidó Gattuso, Jean-Pierre Teixido, Nuria https://doi.org/10.5446/58542

Sequence of early life stages development of Astroides calycularis C. Carbonne, S. Comeau, P. Chan, K. Plichon, K., J.-P. Gattuso, and N. Teixidó https://doi.org/10.5446/58543

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Co-editor-in-chief
Carbonne et al. identified the concurrent impact of Ocean Acidification as well as ocean warming on larval survivorship of corals. The study focuses on more temperate corals and also demonstrates the impact of lowered ocean pH on larval settlement and growth afterwards. This nicely designed experiment and the conclusive results advance our understanding of human's biogeochemical footprint on important taxa in marine systems.
Short summary
For the first time, our study highlights the synergistic effects of a 9-month warming and acidification combined stress on the early life stages of a Mediterranean azooxanthellate coral, Astroides calycularis. Our results predict a decrease in dispersion, settlement, post-settlement linear extention, budding and survival under future global change and that larvae and recruits of A. calycularis are stages of interest for this Mediterranean coral resistance, resilience and conservation.
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