reference : Ocean acidification and coral reefs: Effects on breakdown, dissolution, and net ecosystem calcification

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/reference/80275bfb-6cfc-4320-b71f-7b7816eddc6b
Bibliographic fields
reftype Journal Article
Abstract The persistence of carbonate structures on coral reefs is essential in providing habitats for a large number of species and maintaining the extraordinary biodiversity associated with these ecosystems. As a consequence of ocean acidification (OA), the ability of marine calcifiers to produce calcium carbonate (CaCO3) and their rate of CaCO3 production could decrease while rates of bioerosion and CaCO3 dissolution could increase, resulting in a transition from a condition of net accretion to one of net erosion. This would have negative consequences for the role and function of coral reefs and the eco-services they provide to dependent human communities. In this article, we review estimates of bioerosion, CaCO3 dissolution, and net ecosystem calcification (NEC) and how these processes will change in response to OA. Furthermore, we critically evaluate the observed relationships between NEC and seawater aragonite saturation state (Ωa). Finally, we propose that standardized NEC rates combined with observed changes in the ratios of dissolved inorganic carbon to total alkalinity owing to net reef metabolism may provide a biogeochemical tool to monitor the effects of OA in coral reef environments.
Author Andersson, Andreas J.; Dwight Gledhill
DOI 10.1146/annurev-marine-121211-172241
Issue 1
Journal Annual Review of Marine Science
Keywords CO2,CaCO3,aragonite,Mg calcite,calcification
Pages 321-348
Title Ocean acidification and coral reefs: Effects on breakdown, dissolution, and net ecosystem calcification
Volume 5
Year 2013
Bibliographic identifiers
_record_number 25071
_uuid 80275bfb-6cfc-4320-b71f-7b7816eddc6b