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

Shark populations in Chatham and Wafer bays, Isla del Coco National Park, Costa Rica.
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Whitetip shark
Blacktip shark
species segregation
Isla del Coco National Park
Costa Rica.
Tiburón punta blanca
tiburón punta negra
segregación de especies
Parque Nacional Isla del Coco
Costa Rica.

How to Cite

Zanella, I., López-Garro, A., Martínez, F., Golfín-Duarte, G., & Morales, K. (2016). Shark populations in Chatham and Wafer bays, Isla del Coco National Park, Costa Rica. Revista De Biología Tropical, 64(S1), 177–186.


 At least fourteen species of sharks live in the Marine Protected Area of Isla del Coco National Park (ICNP), some are resident species such as the whitetip reef shark (Triaenodon obesus); others are migratory and visit the National Park throughout the year, e.g. the scalloped hammerhead shark (Sphyrna lewini) and the whale shark (Rhincodon typus). Between March 2010 and August 2012 six expeditions out to the ICNP were carried, during this period 25 night trips (from 18:00 to 22:00 hr) for shark tagging were conducted in the Wafer and Chatham bays. During those trips, 185 sharks were analyzed: 81.1 % were whitetip reef sharks (T. obesus), 16.7 % were blacktip sharks (Carcharhinus limbatus), 1.1 % were blacktip reef sharks (Carcharhinus melanopterus) and 1.1% were silvertip sharks (Carcharhinus albimarginatus). The most common species in Bahía Chatham was T. obesus, while the most common one in Bahía Wafer was C. limbatus, which represented 80.9 % and 80.5 % of the total sharks caught, respectively. Regarding T. obesus, a sex ratio of 1.2 males per female was estimated (X2=0.09; p=0.17); in turn a sex ratio of 1.01 males per female was observed (X2=0.04; p=0.79) for C. limbatus. The average total length for T. obesus and C. limbatus was 103.66±13.91 cm and 76.58±14.56 cm respectively; suggesting that black tip sharks use those bays during immature stages. The results show an interspecific spatial segregation of the most common resident sharks at ICNP, apparently the clear waters and the coral cover of Chatham Bay are preferred by T. obesus; while the turbid waters of the Genio River mouth are preferred by C. limbatus
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Abercrombie, D. L., Clarke, S. C., & Mahmood, S. S. (2005). Global-scale genetic identification of hammerhead sharks: Application to assessment of the international fin trade and law enforcement. Conservation Genetic, 6, 775-788.

ACMIC (2002). La presentación de informes periódicos sobre la aplicación de la convención del patrimonio mundial. Sección II: Estado de conservación de bienes específicos del Patrimonio Mundial. San José, Costa Rica: UNESCO.

Afonso, A., Hazin, F., Carvalho, F., Pacheco, J., Hazin, H., Kerstetter, D., Murie, D., & Burgess, G. (2011). Fishing gear modifications to reduce elasmobranch mortality in pelagic and bottom longline fisheries off Northeast Brazil. Fisheries Research, 108, 336-343.

Alastair, V. H., Tobin, A. J., Simpfendorfer, C. A., Welch, D. J., Mapleston, A., White, J., Williams, A. J., & Stapley, J. (2011). Evaluating catch and mitigating risk in a multispecies, tropical, inshore shark fishery within the Great Barrier Reef World Heritage Area. Marine and Freshwater Research, 62, 710-772.

Bessudo, S., Soler, G., Klimley, P., Ketchum, J., Hearn, A., & Arauz, R. (2011). Residency of the scalloped hammerhead shark (Sphyrna lewini) at Malpelo Island and evidence of migration to other islands in the Eastern Tropical Pacific. Environmental Biology of Fishes, 91, 165-176.

Branstetter, S. (1987). Age and growth estimates for blacktip, Carcharhinus limbatus, and spinner, Carcharhinus brevipinna, sharks from the northwestern Gulf of Mexico. Copeia, 4, 964-974.

Bussing, W. A., & López, M. I. (2005). Peces de la Isla del Coco y peces arrecifales de la costa Pacífica de América Central meridional/Fishes of Cocos Island and Reef Fishes of the Pacific Coast of Lower Central America. Revista de Biología Tropical, 53(Suplemento 2), 5-192.

Carr, L., Stier, A., Fietz, K., Montero, I., Gallagher, A., & Bruno, J. (2013). Ilegal shark fishing in the Galápagos Marine Reserve. Marine Policy, 39, 317-321.

Castro, J. I. (1993). The nursery of Bull Bay, South Carolina, with a review of the shark nurseries of the Southeastern coast of the United States. Environmental Biology of Fishes, 38, 37-48.

Chiaramonte, G., & Pettovello, A. (2000). The biology of Mustelus schmitti in southern Patagonia, Argentina. Journal of Fish Biology, 57, 930-942.

Cortés, J. (2008). Historias de las investigaciones marinas de la Isla del Coco, Costa Rica. Revista Biología Tropical, 56(Suplemento 2), 1-18.

Cortés, J., Sánchez-Jiménez, A., Rodríguez-Arrieta, J. A., Quirós-Barrantes, G., González, P. C., & Blum, S. (2012). Elasmobranchs observed in deepwaters (45-330m) at Isla del Coco National Park, Costa Rica (Eastern Tropical Pacific). Revista de Biología Tropical, 60(Suplemento 3): 257-273.

Di Rienzo, J. A., Casanoves, F., Balzarini, M., Gonzalez, L., Tablada, M., & Robledo, C. (2008). InfoStat, versión 2008. Grupo InfoStat, FCA, Universidad Nacional de Córdoba, Argentina.

Fitzpatrick, R., Abrantes, K., Seymour, J., & Barnett, A. (2011). Variation in depth of whitetip reef sharks: does provisioning ecotourism change their behaviour? Coral Reefs, 30, 569-577.

Friedlander, A., Zgliczynski, B., Ballesteros, E., Aburto, O., Bolaños, A., & Sala, E. (2012). The shallow-water fish assemblage of Isla del Coco National Park, Costa Rica: structure and patterns in an isolated, predator-dominated ecosystem. Revista Biología Tropical 60(Suplemento 3), 321-338.

Gaitan, J., & López, A. (2008). Presencia de juveniles de tiburón aletinegro Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae) en la zona norte de la ecoregión Tayrona, Caribe colombiano. Latin American Journal of Aquatic Research, 36(1), 115-119.

Hanna, K., Foog, A., Driggers, W., Hoffmayer, E., Ingram, W., & Grace, M. (2013). Size selectivity and catch rates of two small coastal shark species caught on circle. Fisheries Research, 147, 145-149.

Hearn, A., Klimley, P., & Peñaherrera, C. (2010a). Hotspots within hotspots? Hammerhead shark movements around Wolf Island, Galapagos Marine Reserve. Marine Biology, 157, 1899-1915.

Hearn, A., Utreras, E., & Henderson, S. (Eds.). (2010b). Informe sobre el estado de los tiburones del Pacífico Este Tropical, Vol. 1. Quito, Ecuador: Conservación Internacional.

Heupel, M., & Simpfendorfer, C. (2008). Movements and distribution of young bull sharks (Carcharhinus leucas) in a variable estuarine environment. Aquatic Biology, 1, 277-289.

Heupel, M. R., Simpfendorfer, C. A., & Hueter, R. E. (2004). Estimation of shark home ranges using passive monitoring techniques. Environmental Biology of Fishes, 71, 135-142.

Kitchell, J. F., Essington, T. E., Boggs, C. H., Schindler D. E., & Walters, C. J. (2002). The role of sharks and Longline fisheries in a pelagic ecosystem of the Central Pacific. Ecosystems, 5, 202-216.

Klimley, A. P. (1987). The determinants of sexual segregation in the scalloped hammerhead shark, Sphyrna lewini. Environmental Biology of Fishes, 18, 27-40.

López, A., Zanella, I., Golfín, G., & Pérez, M. (2012). First record of the blacktip reef shark Carcharhinus melanopterus (Carcharhiniformes: Carcharhinidae) from the Tropical Eastern Pacific. Revista Biología Tropical, 60(Suplemento 3), 275-278.

López, A., Zanella, I., Martínez, F., Golfín, G., & Pérez, M. (2016). Caracterización de las especies pelágicas capturadas por las pesquerías ilegales en el Parque Nacional Isla del Coco, Costa Rica. Revista Biología Tropical, 64(Suplemento 1), 249-261.

McCauley, D. J., Mclean, K. A., Bauer, J., Young, H., & Micheli, F. (2012). Evaluating the performance of methods for estimating the abundance of rapidly declining coastal shark populations. Ecological Applications, 22, 385-392.

McCord, M., & Lamberth, S. (2009). Catching and tracking the world’s largest Zambezi (bull) shark Carcharhinus leucas in the Breede Estuary, South Africa: the first 43 hours. African Journal of Ecology, 31, 107-111.

Merson, R. R., & Pratt, H. L. (2001). Distribution, movements and growth of young sandbar sharks, Carcharhinus plumbeus, in the nursery grounds of Delaware Bay. Environmental Biology of Fishes, 61, 13-24.

Musick, J. A., Harbin, M. M., & Compagno, L. J. V. (2004). Historical zoogeography of the Selachii. En C. Carrier, J. A. Musick & M. R. Heithaus (Eds.). Biology of Sharks and Their Relatives (pp. 42-105). Boca Raton, Florida, Estados Unidos: CRC Press.

Myers, R. & Worm, B. (2003). Rapid worldwide depletion of predatory fish communities. Nature, 423, 280-283.

Myers, R., Baum, J. K., Shepered, T. D., Powers, S., & Peterson, C. H. (2007). Cascading effects of theloss of apex predatory sharks from a coastal ocean. Science, 315;1846-1850.

Nalesso, E. (2014). Distribución espacio-temporal de los tiburones martillo, Sphyrna lewini, alrededor de la Isla del Coco (2005-2013), Pacífico Tropical Oriental. (Tesis de Maestría). Centro de Investigación Científica y de educación Superior de Ensenada, Baja California, Ensenada, Baja California, México.

Nelson, D. R., & Johnson, R. H. (1980). Behaviour of the reef sharks of Rangiroa, French Polynesia. National Geographic Society Research Report, 12, 479-499.

Randall, J. (1977). Contribution to the biology of the whitetip reef shark (Triaenodon obesus). Pacific Science, 31, 143-164.

Robbins, W. (2006). Abundance, demography and population structure of the grey reef shark (Carcharhinus amblyrhynchos) and the whitetip reef shark (Triaenodon obesus) (Fam. Carcharhinidae). (Tesis Doctoral). James Cook University, Townsville, Australia.

Rowe, S. & Hutchings, J. (2003). Mating system and the conservation of commercially exploited marine fishes. Trends in Ecology and Evolution, 18, 567-572.

Sibaja-Cordero, J. A., & Cortés, J. (2010). Comparación temporal de la composición y zonación de organismos en el intermareal rocoso del Parque Nacional Isla del Coco, Pacífico de Costa Rica. Revista Biología Tropical, 58(Suplemento 4), 1387-1403.

Sibaja-Cordero, J. A., Troncoso, J., Benavides C., & Cortés, J. (2012). Distribution of shallow water soft and hard bottom seabeds in the Isla del Coco National Park, Pacific Costa Rica. Revista Biología Tropical, 60(Suplemento 3), 53-66.

Simpfendorfer, C. A., & Milward, N. E. (1993). Utilization of a tropical bay as a nursery area by sharks of the families Carcharhinidae and Sphyrnidae. Environmental Biology of Fishes, 37, 337-345.

Sinergia 69 (2002). Anexo V: Caracterización de las bahías de Chatham y Wafer e inventario preliminar de especies marinas. Área de Conservación Marina Isla del Coco (ACMIC). Proyecto: Estudio de factibilidad y diseño para la construcción de infraestructura y servicios de apoyo en el Parque Nacional Isla del Coco. San José, Costa Rica: Sinergia.

Tavares, R. (2005). Abundancia y distribución de tiburones en el Parque Nacional Archipiélago de Los Roques y otras islas oceánicas venezolanas, 1997-1998. Ciencias Marinas, 31, 441-454.

Tavares, R. (2008). Occurrence, diet and growth of juvenile Blacktip Sharks, Carcharhinus limbatus, from Los Roques Archipelago National Park, Venezuela. Caribbean Journal of Science, 44, 291-302.

Torres, H. A. M. (2004). Distribución, abundancia y hábitos alimentarios de juveniles del tiburón martillo Sphyrna lewini Griffith y Smith (Sphyrnidae) en la costa de Sinaloa, México durante el evento El Niño 1997-98. (Tesis de Maestría). Universidad del Mar, Oaxaca, México.

Walker, T. I. (1998). Can shark resources be harvested sustainably? A question revisited with a review of shark fisheries. Marine Freshwater Research, 49, 553-572.

Whitney, N., Papastamatiou, Y., Holland, K., & Lowe, C. (2007). Use of an acceleration data logger to measure diel activity patterns in captive whitetip reef sharks, Triaenodon obesus. Aquatic Living Resources, 20, 299-305.

Zanella, I., López, A., & Arauz, R. (2009). Caracterización de las descargas del tiburón martillo, Sphyrna lewini, en un área de crianza ubicada en el Golfo de Nicoya, Costa Rica. Revista de Ciencias Marinas y Costeras, 1, 175-195.

Zanella, I., López, A., Golfín, G. & Sáenz, J. (2012). Abundancia, tamaño y estructura poblacional del tiburón punta blanca de arrecife, Triaenodon obesus (Carcharhiniformes: Carcharhinidae), en Bahía Chatham, Parque Nacional Isla del Coco, Costa Rica. Revista Biología Tropical, 60(Suplemento 3), 339-346.



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