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dc.creatorWizemann, André
dc.creatorNandini, Sri D.
dc.creatorStuhldreier, Ines
dc.creatorSánchez Noguera, Celeste
dc.creatorWisshak, Max
dc.creatorWestphal, Hildegard
dc.creatorRixen, Tim
dc.creatorWild, Christian
dc.creatorReymond, Claire E.
dc.date.accessioned2018-12-12T16:37:18Z
dc.date.available2018-12-12T16:37:18Z
dc.date.issued2018
dc.identifier.citationhttps://journals.plos.org/plosone/article?id=10.1371/journal.pone.0202887es_ES
dc.identifier.issn1932-6203
dc.identifier.urihttp://hdl.handle.net/10669/76281
dc.description.abstractCoral reefs persist in an accretion-erosion balance, which is critical for understanding the natural variability of sediment production, reef accretion, and their effects on the carbonate budget. Bioerosion (i.e. biodegradation of substrate) and encrustation (i.e. calcified overgrowth on substrate) influence the carbonate budget and the ecological functions of coral reefs, by substrate formation/consolidation/erosion, food availability and nutrient cycling. This study investigates settlement succession and carbonate budget change by bioeroding and encrusting calcifying organisms on experimentally deployed coral substrates (skeletal fragments of Stylophora pistillata branches). The substrates were deployed in a marginal coral reef located in the Gulf of Papagayo (Costa Rica, Eastern Tropical Pacific) for four months during the northern winter upwelling period (December 2013 to March 2014), and consecutively sampled after each month. Due to the upwelling environmental conditions within the Eastern Tropical Pacific, this region serves as a natural laboratory to study ecological processes such as bioerosion, which may reflect climate change scenarios. Time-series analyses showed a rapid settlement of bioeroders, particularly of lithophagine bivalves of the genus Lithophaga/ Leiosolenus (Dillwyn, 1817), within the first two months of exposure. The observed enhanced calcium carbonate loss of coral substrate (>30%) may influence seawater carbon chemistry. This is evident by measurements of an elevated seawater pH (>8.2) and aragonite saturation state (Ωarag >3) at Matapalo Reef during the upwelling period, when compared to a previous upwelling event observed at a nearby site in distance to a coral reef (Marina Papagayo). Due to the resulting local carbonate buffer effect of the seawater, an influx of atmospheric CO2 into reef waters was observed. Substrates showed no secondary cements in thin-section analyses, despite constant seawater carbonate oversaturation (Ωarag >2.8) during the field experiment. Micro Computerized Tomography (μCT) scans and microcast-embeddings of the substrates revealed that the carbonate loss was primarily due to internal macrobioerosion and an increase in microbioerosion. This study emphasizes the interconnected effects of upwelling and carbonate bioerosion on the reef carbonate budget and the ecological turnovers of carbonate producers in tropical coral reefs under environmental change.es_ES
dc.description.sponsorshipSistema Nacional de Áreas de Conservación/[028-2013-SINAC]/SINAC/Costa Ricaes_ES
dc.description.sponsorshipSistema Nacional de Áreas de Conservación/[72-2013-SINAC]/SINAC/Costa Ricaes_ES
dc.language.isoen_USes_ES
dc.relation.ispartof
dc.sourcePlosONE, vol.19(3), pp. 1-22.es_ES
dc.subjectCoral reefses_ES
dc.subjectSea wateres_ES
dc.subjectCoralses_ES
dc.subjectBivalveses_ES
dc.subjectCarbonateses_ES
dc.subjectOcean temperaturees_ES
dc.subjectAlgaees_ES
dc.subjectReef ecosystemses_ES
dc.subject578.778 9 Arrecifes coralinoses_ES
dc.titleRapid bioerosion in a tropical upwelling coral reefes_ES
dc.typeinfo:eu-repo/semantics/articlees_ES
dc.date.updated2018-12-06T22:23:57Z
dc.identifier.doi10.1371/journal.pone.0202887
dc.description.procedenceUCR::Vicerrectoría de Investigación::Unidades de Investigación::Ciencias Básicas::Centro de Investigación en Ciencias del Mar y Limnología (CIMAR)es_ES


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