Articles | Volume 15, issue 8
Biogeosciences, 15, 2349–2360, 2018
https://doi.org/10.5194/bg-15-2349-2018
Biogeosciences, 15, 2349–2360, 2018
https://doi.org/10.5194/bg-15-2349-2018

Research article 19 Apr 2018

Research article | 19 Apr 2018

Natural ocean acidification at Papagayo upwelling system (north Pacific Costa Rica): implications for reef development

Celeste Sánchez-Noguera et al.

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Albright, R., Langdon, C., and Anthony, K. R. N.: Dynamics of seawater carbonate chemistry, production, and calcification of a coral reef flat, central Great Barrier Reef, Biogeosciences, 10, 6747–6758, https://doi.org/10.5194/bg-10-6747-2013, 2013.
Alfaro, E. and Cortés, J.: Atmospheric forcing of cool subsurface water events in Bahía Culebra, Gulf of Papagayo, Costa Rica, Rev. Biol. Trop., 60, 173–186, 2012.
Alvarado, J., Cortés, J., and Reyes-Bonilla, H.: Reconstruction of Diadema mexicanum bioerosion impact on three Costa Rican Pacific coral reefs, Rev. Biol. Trop., 60, 121–132, 2012.
Amador, J., Rivera, E., Durán-Quesada, A., Mora, G., Sáenz, F., Calderón, B., and Mora, N.: The easternmost tropical Pacific. Part II: Seasonal and intraseasonal modes of atmospheric variability, Rev. Biol. Trop., 64, S23–S57, 2016.
Anthony, K. R. N., Maynard, J. A., Diaz-Pulido, G., Mumby, P. J., Cao, L., Marshall, P. A., and Hoegh-Guldberg, O.: Ocean acidification and warming will lower coral reef resilience, Glob. Change Biol., 17, 1798–1808, 2011.
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Short summary
The Papagayo upwelling system is a natural laboratory for studying ecosystems' response to ocean acidification (OA). We measured pH and pCO2 in situ with high temporal resolution and compared them with data available from upwelling season. Local coral reefs are exposed to acidic and undersaturated waters in upwelling and non-upwelling events. These restrictive conditions occur alongside local stressors, potentially decreasing reefs' resilience and increasing their vulnerability under future OA.
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