Ocean acidification alters early successional coral reef communities and their rates of community metabolism

PloS One
Sam H C NoonanKatharina E Fabricius

Abstract

Ocean acidification is expected to alter community composition on coral reefs, but its effects on reef community metabolism are poorly understood. Here we document how early successional benthic coral reef communities change in situ along gradients of carbon dioxide (CO2), and the consequences of these changes on rates of community photosynthesis, respiration, and light and dark calcification. Ninety standardised benthic communities were grown on PVC tiles deployed at two shallow-water volcanic CO2 seeps and two adjacent control sites in Papua New Guinea. Along the CO2 gradient, both the upward facing phototrophic and the downward facing cryptic communities changed in their composition. Under ambient CO2, both communities were dominated by calcifying algae, but with increasing CO2 they were gradually replaced by non-calcifying algae (predominantly green filamentous algae, cyanobacteria and macroalgae, which increased from ~30% to ~80% cover). Responses were weaker in the invertebrate communities, however ascidians and tube-forming polychaetes declined with increasing CO2. Differences in the carbonate chemistry explained a far greater amount of change in communities than differences between the two reefs and successional changes...Continue Reading

References

Nov 11, 1999·Proceedings of the National Academy of Sciences of the United States of America·J P GattusoS V Smith
Aug 16, 2003·Science·T P HughesJ Roughgarden
Dec 15, 2007·Science·O Hoegh-GuldbergM E Hatziolos
Jun 10, 2008·Nature·Jason M Hall-SpencerMaria-Cristina Buia
Jan 1, 2009·Annual Review of Marine Science·Scott C DoneyJoan A Kleypas
Dec 16, 2010·Ecology Letters·Guillermo Diaz-PulidoKenneth R N Anthony
Dec 30, 2011·PloS One·Gretchen E HofmannTodd R Martz
Oct 3, 2012·Proceedings of the National Academy of Sciences of the United States of America·Glenn De'athMarji Puotinen
Mar 19, 2013·Global Change Biology·Kristy J KroekerJean-Pierre Gattuso
Aug 28, 2013·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Sean D ConnellBayden D Russell
Sep 5, 2013·Proceedings of the National Academy of Sciences of the United States of America·Sophie G DoveOve Hoegh-Guldberg
Sep 1, 2012·Global Change Biology·Vivienne R JohnsonJason M Hall-Spencer
Jul 15, 2015·Global Change Biology·Steeve ComeauRobert C Carpenter
Oct 30, 2015·Proceedings. Biological Sciences·C LinaresE Ballesteros
Nov 26, 2015·Science Advances·Hannah C BarkleyKathryn E F Shamberger
Feb 26, 2016·Nature·Rebecca AlbrightKen Caldeira
Nov 18, 2016·Proceedings. Biological Sciences·Ian C EnochsKatharina E Fabricius
Mar 17, 2017·Nature·Terry P HughesShaun K Wilson
Oct 1, 2012·Global Change Biology·David J SuggettTracy Lawson
Sep 15, 2017·Proceedings. Biological Sciences·Katharina E FabriciusGlenn De'ath

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Citations

Sep 22, 2021·Proceedings of the National Academy of Sciences of the United States of America·Molly A TimmersRobert J Toonen

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