Articles | Volume 22, issue 20
https://doi.org/10.5194/bg-22-5809-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-22-5809-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
21 Oct 2025
Research article |
| 21 Oct 2025
| 21 Oct 2025
Volcanic ash leaching alters the trace metal distribution within the coral holobiont of Stylophora pistillata
Department of Earth Sciences, University of Geneva, Genève, Switzerland
Sebastian Flöter
Department of Earth Sciences, University of Geneva, Genève, Switzerland
Lucie Sauzéat
Laboratoire Magmas et Volcans (LMV), Université Clermont Auvergne, CNRS, IRD, OPGC, 63000 Clermont-Ferrand, France
Institut de Génétique, Reproduction et Développement (iGReD), Université Clermont Auvergne, CNRS, INSERM, 63000 Clermont-Ferrand, France
Stéphanie Reynaud
Ecophysiology Team, Centre Scientifique de Monaco, Monaco, Monaco
Eric Achterberg
GEOMAR Helmholtz Center for Ocean Research Kiel, Kiel, Germany
Alexandra Tsay
Department of Earth Sciences, University of Geneva, Genève, Switzerland
Christine Ferrier-Pagès
Ecophysiology Team, Centre Scientifique de Monaco, Monaco, Monaco
Tom E. Sheldrake
Department of Earth Sciences, University of Geneva, Genève, Switzerland
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Short summary
Explosive volcanic eruptions produce ash that, upon ocean deposition, alters seawater chemistry by leaching or adsorbing metals. Corals like Stylophora pistillata incorporate these metals in its various compartments (tissue, symbionts and skeleton), with most metal changes appearing in the coral skeleton. We present a novel dataset of ash-seawater leaching results, trace metal analysis in the different coral compartments from cultured corals maintained under a control and ash exposed condition.
Explosive volcanic eruptions produce ash that, upon ocean deposition, alters seawater chemistry...
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