Environmental controls on modern scleractinian coral and reef-scale calcification

TitleEnvironmental controls on modern scleractinian coral and reef-scale calcification
Publication TypeJournal Article
Year of Publication2017
AuthorsCourtney T.A, Lebrato M., Bates NR, Collins A., de Putron S.J, Garley R., Johnson R., Molinero J.C, Noyes T.J, Sabine C.L, Andersson AJ
JournalScience Advances
Volume3
Date Published2017/11
Type of ArticleArticle
ISBN Number2375-2548
Accession NumberWOS:000418002000020
KeywordsBermuda; carbonic-acid; climate-change; constants; dissociation; growth; history; ocean acidification; rates; seawater
Abstract

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.

DOI10.1126/sciadv.1701356
Student Publication: 
Yes
Student: 
sharknado