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Partial offsets in ocean acidification from future changes in coral reef biogeochemistry

Partial offsets in ocean acidification from future changes in coral reef biogeochemistry
Partial offsets in ocean acidification from future changes in coral reef biogeochemistry
Concerns have been raised about how coral reefs will be affected by ocean acidification1, 2, but projections of future seawater CO2 chemistry have focused solely on changes in the pH and aragonite saturation state (?a) of open-ocean surface seawater conditions surrounding coral reefs1, 2, 3, 4 rather than the reef systems themselves. The seawater CO2 chemistry within heterogeneous reef systems can be significantly different from that of the open ocean depending on the residence time, community composition and the main biogeochemical processes occurring on the reef, that is, net ecosystem production (NEP?=?gross primary production???autotrophic and heterotrophic respiration) and net ecosystem calcification (NEC?=?gross calcification???gross CaCO3 dissolution), which combined act to modify seawater chemistry5, 6, 7. On the basis of observations from the Bermuda coral reef, we show that a range of projected biogeochemical responses of coral reef communities to ocean acidification by the end of this century could partially offset changes in seawater pH and ?a by an average of 12–24% and 15–31%, respectively.
1758-678X
56-61
Andersson, Andreas J.
b07d71e9-2654-40ba-9c69-0775557bf7de
Yeakel, Kiley L.
f2258738-54d2-409a-8722-f9558250eced
Bates, Nicholas R.
954a83d6-8424-49e9-8acd-e606221c9c57
de Putron, Samantha J.
09becf31-21a4-46e1-867b-aba2023308c9
Andersson, Andreas J.
b07d71e9-2654-40ba-9c69-0775557bf7de
Yeakel, Kiley L.
f2258738-54d2-409a-8722-f9558250eced
Bates, Nicholas R.
954a83d6-8424-49e9-8acd-e606221c9c57
de Putron, Samantha J.
09becf31-21a4-46e1-867b-aba2023308c9

Andersson, Andreas J., Yeakel, Kiley L., Bates, Nicholas R. and de Putron, Samantha J. (2014) Partial offsets in ocean acidification from future changes in coral reef biogeochemistry. Nature Climate Change, 4, 56-61. (doi:10.1038/nclimate2050).

Record type: Article

Abstract

Concerns have been raised about how coral reefs will be affected by ocean acidification1, 2, but projections of future seawater CO2 chemistry have focused solely on changes in the pH and aragonite saturation state (?a) of open-ocean surface seawater conditions surrounding coral reefs1, 2, 3, 4 rather than the reef systems themselves. The seawater CO2 chemistry within heterogeneous reef systems can be significantly different from that of the open ocean depending on the residence time, community composition and the main biogeochemical processes occurring on the reef, that is, net ecosystem production (NEP?=?gross primary production???autotrophic and heterotrophic respiration) and net ecosystem calcification (NEC?=?gross calcification???gross CaCO3 dissolution), which combined act to modify seawater chemistry5, 6, 7. On the basis of observations from the Bermuda coral reef, we show that a range of projected biogeochemical responses of coral reef communities to ocean acidification by the end of this century could partially offset changes in seawater pH and ?a by an average of 12–24% and 15–31%, respectively.

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More information

e-pub ahead of print date: 17 November 2013
Published date: 2014
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 357215
URI: http://eprints.soton.ac.uk/id/eprint/357215
ISSN: 1758-678X
PURE UUID: c55194b2-1dc6-4600-ad7a-2a8ab9b68427

Catalogue record

Date deposited: 23 Sep 2013 12:29
Last modified: 16 Jul 2019 21:22

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