reference : Ocean acidification accelerates reef bioerosion

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Bibliographic fields
reftype Journal Article
Abstract <p>In the recent discussion how biotic systems may react to ocean acidification caused by the rapid rise in carbon dioxide partial pressure (<italic>p</italic>CO<sub>2</sub>) in the marine realm, substantial research is devoted to calcifiers such as stony corals. The antagonistic process – biologically induced carbonate dissolution via bioerosion – has largely been neglected. Unlike skeletal growth, we expect bioerosion by chemical means to be facilitated in a high-CO<sub>2</sub> world. This study focuses on one of the most detrimental bioeroders, the sponge <italic>Cliona orientalis</italic>, which attacks and kills live corals on Australia’s Great Barrier Reef. Experimental exposure to lowered and elevated levels of <italic>p</italic>CO<sub>2</sub> confirms a significant enforcement of the sponges’ bioerosion capacity with increasing <italic>p</italic>CO<sub>2</sub> under more acidic conditions. Considering the substantial contribution of sponges to carbonate bioerosion, this finding implies that tropical reef ecosystems are facing the combined effects of weakened coral calcification and accelerated bioerosion, resulting in critical pressure on the dynamic balance between biogenic carbonate build-up and degradation.</p>
Author Wisshak, Max Schönberg, Christine H. L. Form, Armin Freiwald, André
DOI 10.1371/journal.pone.0045124
Issue 9
Journal PLoS ONE
Pages e45124
Title Ocean acidification accelerates reef bioerosion
Volume 7
Year 2012
Bibliographic identifiers
.publisher Public Library of Science
.reference_type 0
_chapter ["Ch. 24: Oceans FINAL","RF 11","Ch. 23: Hawaii FINAL"]
_record_number 4336
_uuid 6c5429c7-e85e-4a65-b8c1-919ce0581b42