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Coral reef survival under accelerating ocean deoxygenation

Author

Listed:
  • David J. Hughes

    (Climate Change Cluster, University of Technology Sydney)

  • Rachel Alderdice

    (Climate Change Cluster, University of Technology Sydney)

  • Christopher Cooney

    (Climate Change Cluster, University of Technology Sydney)

  • Michael Kühl

    (Climate Change Cluster, University of Technology Sydney
    University of Copenhagen)

  • Mathieu Pernice

    (Climate Change Cluster, University of Technology Sydney)

  • Christian R. Voolstra

    (University of Konstanz)

  • David J. Suggett

    (Climate Change Cluster, University of Technology Sydney)

Abstract

Global warming and local eutrophication simultaneously lower oxygen (O2) saturation and increase biological O2 demands to cause deoxygenation. Tropical shallow waters, and their coral reefs, are particularly vulnerable to extreme low O2 (hypoxia) events. These events can drive mass mortality of reef biota; however, they currently remain unaccounted for when considering coral reef persistence under local environmental alterations and global climatic change. In this Perspective, we integrate existing biological, ecological and geochemical evidence to consider how O2 availability and hypoxia affect reef biota, with particular focus on the ecosystem architects, reef-building corals, that operate as both O2 consumers and producers. We pinpoint fundamental knowledge gaps and highlight the need to understand sub-lethal hypoxia effects that are likely already in play.

Suggested Citation

  • David J. Hughes & Rachel Alderdice & Christopher Cooney & Michael Kühl & Mathieu Pernice & Christian R. Voolstra & David J. Suggett, 2020. "Coral reef survival under accelerating ocean deoxygenation," Nature Climate Change, Nature, vol. 10(4), pages 296-307, April.
    • Handle: RePEc:nat:natcli:v:10:y:2020:i:4:d:10.1038_s41558-020-0737-9
    DOI: 10.1038/s41558-020-0737-9
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    Cited by:

    1. Edwin A. Hernández-Delgado & Pedro Alejandro-Camis & Gerardo Cabrera-Beauchamp & Jaime S. Fonseca-Miranda & Nicolás X. Gómez-Andújar & Pedro Gómez & Roger Guzmán-Rodríguez & Iván Olivo-Maldonado & Sam, 2024. "Stronger Hurricanes and Climate Change in the Caribbean Sea: Threats to the Sustainability of Endangered Coral Species," Sustainability, MDPI, vol. 16(4), pages 1-62, February.
    2. Shannon G. Klein & Cassandra Roch & Carlos M. Duarte, 2024. "Systematic review of the uncertainty of coral reef futures under climate change," Nature Communications, Nature, vol. 15(1), pages 1-17, December.

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