Environmental controls on modern scleractinian coral and reef-scale calcification.

Courtney, Travis A., Lebrato, Mario, Bates, Nicholas R., Collins, Andrew, de Putron, Samantha J., Garley, Rebecca, Johnson, Rod, Molinero, Juan-Carlos, Noyes, Timothy J., Sabine, Christopher L. and Andersson, Andreas J. (2017) Environmental controls on modern scleractinian coral and reef-scale calcification. Open Access Science Advances, 3 (11). e1701356. DOI 10.1126/sciadv.1701356.

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Modern reef-building corals sustain a wide range of ecosystem services because of their ability to build calcium carbonate reef systems. The influence of environmental variables on coral calcification rates has been extensively studied, but our understanding of their relative importance is limited by the absence of in situ observations and the ability to decouple the interactions between different properties. We show that temperature is the primary driver of coral colony (Porites astreoides and Diploria labyrinthiformis) and reef-scale calcification rates over a 2-year monitoring period from the Bermuda coral reef. On the basis of multimodel climate simulations (Coupled Model Intercomparison Project Phase 5) and assuming sufficient coral nutrition, our results suggest that P. astreoides and D. labyrinthiformis coral calcification rates in Bermuda could increase throughout the 21st century as a result of gradual warming predicted under a minimum CO2 emissions pathway [representative concentration pathway (RCP) 2.6] with positive 21st-century calcification rates potentially maintained under a reduced CO2 emissions pathway (RCP 4.5). These results highlight the potential benefits of rapid reductions in global anthropogenic CO2 emissions for 21st-century Bermuda coral reefs and the ecosystem services they provide.

Document Type: Article
Research affiliation: OceanRep > GEOMAR > FB3 Marine Ecology > FB3-EOE-N Experimental Ecology - Food Webs
Kiel University > Kiel Marine Science
OceanRep > The Future Ocean - Cluster of Excellence
Kiel University
Refereed: Yes
Open Access Journal?: Yes
DOI etc.: 10.1126/sciadv.1701356
ISSN: 2375-2548
Related URLs:
Projects: BEACON
Date Deposited: 05 Jan 2018 09:20
Last Modified: 06 Feb 2020 09:17
URI: http://oceanrep.geomar.de/id/eprint/41190

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