Revista de Biología Tropical ISSN Impreso: 0034-7744 ISSN electrónico: 2215-2075

Impact of El Niño 2015-2016 on the coral reefs of the Pacific of Costa Rica: the potential role of marine protection


coral bleaching; El Niño; crustose coralline algae; conservation strategies; marine protected areas; resilience; Cocos Island.
blanqueamiento coralino; El Niño; algas calcáreas costrosas; estrategias de conservación; áreas marinas protegidas; resiliencia.

How to Cite

Alvarado, J. J., Sánchez-Noguera, C., Arias-Godínez, G., Araya, T., Fernández-García, C., & Guzmán, A. G. (2020). Impact of El Niño 2015-2016 on the coral reefs of the Pacific of Costa Rica: the potential role of marine protection. Revista De Biología Tropical, 68(S1), S271-S282.


Introduction: El Niño 2015-2016 was considered one of the most severe worldwide, causing the third global event of coral bleaching. Previous high-intensity El Niño events (1982-83 and 1997-98) caused high coral mortalities and deterioration of coral reef structures along the Eastern Tropical Pacific, affecting both ecosystem and associated economical activities. Objective: The aim of this study was to determine the impact of the most recent El Niño event on coral reefs from Cocos Island and the Pacific coast of southern Costa Rica. Methods: Coral reefs were surveyed before (2013-2014) and after (2016) the disturbance, using underwater visual censuses within belt transects, to quantify the bottom coverage at different depths. Results: In general, average live coral cover decreased 50% after the 2015-2016 El Niño event, with Golfo Dulce being the most affected area with 75% of live coral cover decline. However, in certain localities such as Isla del Coco and Isla del Caño, the effects of El Niño were apparently minimal, since no substantial loss of live coral cover was detected. Differences in the level of deterioration found between coral reefs could be related to several factors, including the age of the protected area, the distance to centers of human population, and the effectiveness in the application of management strategies. Conclusions: The synergistic impact of the 2015-16 El Niño event and other stressors (e.g. illegal fishing and unregulated coastal human development) increased the levels of disturbance on coral reefs, threatening their structure and functioning. It is necessary to strengthen conservation strategies in order to improve the resilience of coral reefs to the impact of natural and anthropogenic disturbances. Concrete actions such as coral reef restoration, marine environmental education, and marine spatial planning must become important tools to maintain the good health of coral reefs and ensure the sustainability of the goods and services provided by these ecosystems.


Alvarado, J. J., Cortés, J., Esquivel, M. F., & Salas, E. (2012). Costa Rica’s Marine Protected Areas: status and perspectives. Revista de Biología Tropical, 60, 129-142. doi: 10.15517/rbt.v60i1.2657

Alvarado, J. J., Herrera, B., Corrales, L., Asch, J., & Paaby, P. (2011). Identificación de las prioridades de conservación de la biodiversidad marina y costera en Costa Rica. Revista de Biología Tropical, 59, 829-842.

Alvarado, J. J., A. Beita, S. Mena, C. Fernández-García & A. G. Guzmán. (2015). Ecosistemas coralinos del Área de Conservación Osa, Costa Rica: análisis estructural y necesidades de conservación. Revista de Biología Tropical, 63 (Supl. 1), 219-259 doi:10.15517/rbt.v63i1.23105.

Alvarado, J. J., Beita, A., Mena, S., Fernández-García, C., Guzmán, A. G., & Cortés, J. (2016). Ecosistemas coralinos del Parque Nacional Isla del Coco, Costa Rica: análisis estructural y temporal. Revista de Biología Tropical, 64 (Supl. 1), 153-175. doi: 0.15517/rbt.v64i1.23423

Alvarado, J. J., Aburto-Oropeza, O., Abad, R., Barraza, E., Brandt, M., Cantera, J., Estrada, P., Gaymer-García, C., Guzmán, A. G., Herlan, J. J., & Maté, J. (2017). Coral Reefs Conservation along the Eastern Tropical Pacific. In Glynn, P. W., Manzello, D. P., & Enochs, I. C. (Eds). Coral Reefs of the Eastern Tropical Pacific: Persistence and Loss in a Dynamic Environment (pp. 565-591). Berlin: Springer.

Alvarado, J. J., Beita-Jiménez, A., Mena, S., Fernández-García, C., Cortés, J., Sánchez-Noguera, C., Jiménez, C., & Guzmán, A. G. (2018). Cuando la conservación no puede seguir el ritmo del desarrollo: Estado de salud de los ecosistemas coralinos del Pacífico Norte de Costa Rica. Revista de Biología Tropical, 66 (Supl. 1), 280-308. doi: 10.15517/rbt.v66i1.33300

Baker, A. C., Starger, C. J., McClanahan, T. R., & Glynn, P. W. (2004). Corals’ adaptive response to climate change. Nature, 430, 741. doi: 10.1038/430741a

Bode, M., Bode, L., Choukroun, S., James, M. K., & Mason, L. B. (2018). Resilient reefs may exist, but can larval dispersal models find them? PLoS Biology, 16, e2005964.

Chabanet, P., Stoica, G., Carrière, S. M., Sabinot, C., Bedrossian, C., & Ferraris, J. (2018). Impact of the Use of a Teaching Toolbox in an Awareness Campaign on Children’s Representations of Coral Reefs. Frontiers of Marine Science, 5, 340. doi: 10.3389/fmars.2018.00340.

Claar, D. C., Szostek, L., McDevitt-Irwin, J. M., Schanze, J. J., & Baum, J. K. (2018). Global patterns and impacts of El Niño events on coral reefs: A meta-analysis. PLoS ONE, 13(2), e0190957.

Clarke, K. R., & Golrley, R. N. (2015). PRIMER v7: User manual/tutorial (p. 300). Plymouth, UK: PRIMER-E Ltd.

Cortés, J., Murillo, M. M., Guzman, H. M., & Acuña, J. (1984). Pérdida de zooxantelas y muerte de corales y otros organismos arrecifales en el Caribe y Pacífico de Costa Rica. Revista de Biología Tropical, 32, 227-231.

Cunning, R., Glynn, P. W., & Baker, A. C. (2013). Flexible associations between Pocillopora corals and Symbiodinium limit utility of symbiosis ecology in defining species. Coral Reefs, 32, 795-801.

Cunning, R., Vaughan, N., Gillette, P., Capo, T., Maté, J., & Baker, A. C. (2015). Dynamic regulation of partner abundance mediates response of reef coral symbioses to environmental change. Ecology, 96,1411–1420.

Edgar, G. J., Stuart-Smith, R. D., Willis, T. J., Kininmonth, S., Baker, S. C., Banks, S., Barrett, N. S., Becerro, M. A., Bernard, A. T. F., Berkhout, J., Buxton, C. D., Campbell, S. J., Cooper, A. T., Davey, M., Edgar, S. C., Försterra, G., Galván, D. E., Irigoyen, A. J., Kushner, D. J., Moura, R., Parnell, P. E., Shears, N. T., Soler, G., Strain, E. M. A., & Thomson, R. J. (2014). Global conservation outcomes depend on marine protected areas with five key features. Nature, 506, 216-220.

Frölicher, T.L., & C. Laufkötte. (2018). Emerging risks from marine heat waves. Nature communications, 9, 650. doi:10.1038/s41467-018-03163-6

Glynn, P. W., Cortés, J., Guzman, H., & Richmond, R. H. (1988). El Niño (1982-1983) associated coral mortality in relationship to sea surface temperature deviations in the tropical eastern Pacific. Proceedings 6th International Coral Reef Symposium, Australia, 3, 237-243.

Glynn, P. W., Mones, A. B., Podestá, G. P., Colbert, A., & Colgan, M. W. (2017). El Niño-Southern Oscillation: Effects on Eastern Pacific Coral Reefs and Associated Biota. In Glynn, P. W., Manzello, D. P., & Enochs, I. C. (Eds). Coral Reefs of the Eastern Tropical Pacific: Persistence and Loss in a Dynamic Environment (pp. 251-290). Berlin: Springer.

Guzmán, H. M., & Cortés, J. (1992). Cocos Island (Pacific of Costa Rica) coral reefs after the 1982-83 El Niño disturbance. Revista de Biología Tropical, 40, 309-324.

Guzmán, H. M., & Cortés, J. (2001). Changes in reef community structure after fifteen years of natural disturbances in the eastern Pacific (Costa Rica). Bulletin of Marine Science, 69, 133-149.

Guzmán, H. M., & Cortés, J. (2007). Reef recovery 20 years after the 1982-83 El Niño massive mortality. Marine Biology, 151, 401-411. doi: 10.1007/s00227-006-0495-x

Guzmán, H. M., Cortés, J., Richmond, R. H., & Glynn, P. W. (1987). Efectos del fenómeno de “El Niño-Oscilación Sureña” 1982-83 en los arrecifes coralinos de la Isla del Caño, Costa Rica. Revista de Biología Tropical, 35, 325-332.

Hesley, D., Burdeno, D., Drury, C., Schopmeyer, S., & Lirman, D. (2017). Citizen science benefits coral reef restoration activities. Journal for Nature Conservation, 40, 94–99. doi: 10.1016/j.jnc.2017.09.001

Hughes, T. P., Graham, N. A. J., Jackson, J. B. C., Mumby, P. J., & Steneck, R. S. (2010). Rising to the challenge of sustaining coral reef resilience. Trends in Ecology and Evolution, 25, 633-642. doi: 10.1016/j.tree.2010.07.011

Hughes, T. P., Anderson, K. D., Connolly, S. R., Heron, S. F., Kerry, J. T., Lough, J. M., Baird, A. H., Baum, J. K., Berumen, M. L., Bridge, T. C., Claar, D. C., Eakin, M., Gilmour, J. P., Graham, N. A. J., Harrison, H., Hobbs, J. P. A., Hoey, A. S., Hoogenboom, M., Lowe, R. J., McCulloch, M. T., Pandolfi, J. M., Pratchett, M., Schoepf, V., Torda, G., & Wilson, S. K. (2018). Spatial and temporal patterns of mass bleaching of corals in the Anthropocene. Science, 359, 80–83. doi: 10.1126/science.aan8048

Hughes, T. P., Kerry, J. T., Baird, A. H., Connolly, S. R., Chase, T. J., Dietzel, A., Hill, T., Hoey, A. S., Hoogenboom, M. O., Jacobson, M., Kerwell, A., Madin, J. S., Mieog, A., Paley, A. S., Pratchett, M. S., Torda, G., & Woods, R.M. (2019). Global warming impairs stock-recruitment dynamins of corals. Nature, 568, 387–390

Jiménez, C., & Cortés, J. (2001). Effects of the 1991-1992 El Niño on scleractinian corals of the Costa Rican central Pacific coast. Revista de Biología Tropical, 49 (Suppl. 2), 239-250.

Jiménez, C. E., & Cortés, J. (2003). Coral cover change associated to El Niño, eastern Pacific, Costa Rica, 1992-2001. P.S.Z.N.: Marine Ecology, 24, 179-192. doi: 10.1046/j.1439-0485.2003.03814.x

Jiménez, C., Cortés, J., León, A., & Ruiz, E. (2001). Coral bleaching and mortality associated with the 1997-98 El Niño in an upwelling environment in the eastern Pacific (Gulf of Papagayo, Costa Rica). Bulletin Marine Science, 69, 151-169.

Lizano, O. G. (2008). Dinámica de aguas alrededor de la Isla del Coco, Costa Rica. Revista de Biología Tropical, 56 (Supl. 2), 31-48.

McClannahan, T. R., Ateweberhan, M., Muhando, C. A., Maina, J., & Mohammed, M. S. (2007). Effects of climate and seawater temperature variation on coral bleaching and mortality. Ecological Monographs, 77, 503–525. doi: 10.1890/06-1182.1

Montero-Cordero, A., & Lobo, J. (2010). Effect of tourist vessels on the behaviour of the pantropical spotted dolphin, Stenella attenuata, in Drake Bay and Caño. Journal of Cetacean Research and Management, 11, 285-291.

Morales-Ramírez, Á, Acuña-González, J., Lizano, O., Alfaro, E., & Gómez, E. (2015). Rasgos oceanográficos en el Golfo Dulce, Pacífico de Costa Rica: una revisión para la toma de decisiones en conservación marina. Revista de Biología Tropical, 63 (Supl. 1), 131-160. doi: 10.15517/rbt.v63i1.23100

Moreno-Díaz, M. L. (2012). Actividades socioeconómicas en el Parque Nacional Isla del Coco, Costa Rica y posibles efectos de la variabilidad climática. Revista de Biología Tropical, 60 (Suppl. 3), 113-129.

Mumby, P. J. (2017). Embracing a world of subtlety and nuance on coral reefs. Coral Reefs, 36,1003–1011. doi: 10.1007/s00338-017-1591-8

Mumby, P. J., & Steneck, R. S. (2011). The Resilience of Coral Reefs and Its Implications for Reef Management. In Dubinsky, Z., & Stambler, N. (eds.). Coral Reefs: An Ecosystem in Transition (pp. 509-519). Berlin: Springer.

Naranjo-Arriola, A. (2018). Capacidad de carga turística como herramienta de manejo sostenible de los arrecifes coralinos en la Reserva Biológica Isla del Caño. Tesis de Maestía, Universidad Nacional, Heredia.

Richmond, R.H., Tisthammer, K. H., & Spies, N. P. (2018). The Effects of Anthropogenic Stressors on Reproduction and Recruitment of Corals and Reef Organisms. Frontiers of Marine Science, 5, 226. doi:10.3389/fmars.2018.00226

Riegl, B., & Piller, W. E. (2003). Possible refugia for reefs in times of environmental stress. International Journal of Earth Sciences (Geologische Rundschau), 92, 520–531. doi: 10.1007/s00531-003-0328-9

Rinkevich, B. (2005). Conservation of coral reefs through active restoration measures: recent approaches and last decade progress. Environmental Science & Technology, 39, 4333-4342. doi: 10.1021/es0482583

Rinkevich, B. (2014). Rebuilding coral reefs: does active reef restoration lead to sustainable reefs? Current Opinion in Environmental Sustainability, 7, 28-36. doi: 10.1016/j.cosust.2013.11.018

Romero-Torres, M., Treml, E. A., Acosta, A., & Paz-García, D. A. (2018). The Eastern Tropical Pacifc coral population connectivity and the role of the Eastern Pacific Barrier. Scientific Reports, 8, 9354. doi:10.1038/s41598-018-27644-2

Sale, P. F. (2008). Management of coral reefs: Where we have gone wrong and what we can do about it. Marine Pollution Bulletin, 56, 805–809. doi: 10.1016/j.marpolbul.2008.04.009

Schiermeier, Q. (2015). Hunting the Godzilla El Niño. Nature, 526, 490-491. doi: 10.1038/526490a

Strain, E. M. A., Edgar, G. J., Ceccarelli, D., Stuart-Smith, R. D., Hosack, G. R., & Thomson, R. J. (2018). A global assessment of the direct and indirect benefits of marine protected areas for coral reef conservation. Diversity and Distributions, 2018, 1-12. doi: 10.1111/ddi.12838

Svendsen, H., Rosland, R., Myking, S., Vargas, J. A., Lizano, O. G., & Alfaro, E. J. (2006). A physical-oceanographic study of Golfo Dulce, Costa Rica. Revista de Biología Tropical, 54 (Suppl. 1), 147-170.

Van Oppen, M. J. H, Olivera, J. K., Putnamb, H. M., & Gates, R. D. (2015). Building coral reef resilience through assisted evolution. Proceeding of the National Academy of Science, 112, 2307-2313. doi: 10.1073/pnas.1422301112

Van Oppen, M. J. H., Gates, R. D., Blackall, L. L., Cantin, N., Chakravarti, L. J., Chan, W., Cormick, C., Crean, A., Damjanovic, K., Hepstein, H., Harrison, P., Jones, T. A., Miller, M., Pears, R. J., Peplow, L. M., Raftos, D. A., Schaffelke, B., Stewart, K., Torda, G., Wachenfeld, D., Weeks, A. R., & Putnam, H. M. (2017). Shifting paradigms in restoration of the world’s coral reefs. Global Change Biology, 23, 3437-3448. doi:10.1111/gcb.13647

Van Woesik, R., Houk, P., Isechal, A. L., Idechong, J. W., Victor, S., & Golbuu, Y. (2012). Climate-change refugia in the sheltered bays of Palau: analogs of future reefs. Ecology and Evolution, 2, 2474-2484. doi: 10.1002/ece3.363

Varotsos, C., Tzanis, G., & Sarlis, N. V. (2016). On the progress of the 2015–2016 El Niño event. Atmospheric Chemistry and Physics, 16, 2007–2011. doi: 10.5194/acp-16-2007-2016

Weinberg, S. (1981). A comparison of coral reef survey methods. Bijdragen tot de Dierkunde, 51, 199-218.



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