Coral calcification mechanisms in a warming ocean and the interactive effects of temperature and light

Claire L Ross; Andrew Warnes; Steeve Comeau; Christopher E Cornwall; Michael V. W Cuttler; Melissa Naugle; Malcolm T McCulloch; Verena Schoepf

doi:10.1038/s43247-022-00396-8

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Coral calcification mechanisms in a warming ocean and the interactive effects of temperature and light

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Coral calcification mechanisms in a warming ocean and the interactive effects of temperature and light

Claire L Ross, Andrew Warnes, Steeve Comeau, Christopher E Cornwall, Michael V. W Cuttler, Melissa Naugle, Malcolm T McCulloch and Verena Schoepf

Communications Earth & Environment, Vol.3(1), pp.1-11

2022

DOI: https://doi.org/10.1038/s43247-022-00396-8

Appears in Recent Faculty of Science and Engineering Publications

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Abstract

Earth Sciences

Oceanography

Sciences of the Universe

Ocean warming is transforming the world's coral reefs, which are governed by the growth of marine calcifiers, most notably branching corals. Critical to skeletal growth is the corals' regulation of their internal chemistry to promote calcification. Here we investigate the effects of temperature and light on the calcifying fluid chemistry (using boron isotope systematics), calcification rates, metabolic rates and photo-physiology of Acropora nasuta during two mesocosm experiments simulating seasonal and static temperature and light regimes. Under the seasonal regime, coral calcification rates, calcifying fluid carbonate chemistry, photo-physiology and metabolic productivity responded to both changes in temperature and light. However, under static conditions the artificially prolonged exposure to summer temperatures resulted in heat stress and a heightened sensitivity to light. Our results indicate that temperature and light effects on coral physiology and calcification mechanisms are interactive and context-specific, making it essential to conduct realistic multi-variate dynamic experiments in order to predict how coral calcification will respond to ocean warming.

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Title: Coral calcification mechanisms in a warming ocean and the interactive effects of temperature and light
Creators: Claire L Ross - University of Western Australia
Andrew Warnes - University of Western Australia
Steeve Comeau - University of Western Australia
Christopher E Cornwall - Victoria University of Wellington
Michael V. W Cuttler - University of Western Australia
Melissa Naugle - Southern Cross University
Malcolm T McCulloch - University of Western Australia
Verena Schoepf - University of Western Australia
Publication Details: Communications Earth & Environment, Vol.3(1), pp.1-11
Identifiers: 991013019925402368
Copyright: Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
Academic Unit: Faculty of Science and Engineering
Language: English
Resource Type: Journal article

Coral calcification mechanisms in a warming ocean and the interactive effects of temperature and light

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