Keywords
nursery area
shark intraspecific segregation
Sphyrna lewini.
isla oceánica
área de crianza
segregación intraespecífica
tiburones
Sphyrna lewini.
How to Cite
Abstract
The Scalloped hammerhead shark, Sphyrna lewini is a coastal and pelagic circumglobal species that resides within coastal warm temperate and tropical seas. Sphyrna lewini exhibits strong intraspecific segregation: neonates and young-of-the-year spend the first part of life in coastal inshore waters (nursery grounds), while adults migrate offshore, returning to protected nursery habitats for mating and pupping. On December 3, 2014, at approximately 19:00 hr, four young-of-the-year S. lewini were caught with hand line in Wafer Bay, Isla del Coco, Costa Rica (5°32’42.4” N - 87°03’45.3” W). A total of three males (total length (TL): 73, 73, 76 cm) and one female (TL: 75 cm) were recorded. The presence of these individuals at Isla del Coco suggests that a pregnant female gave birth in or near Wafer Bay, which may be a nursery ground for S. lewini. We recommend further study to evaluate the presence and movements of young-of-the-year and juvenile S. lewini in Wafer Bay to determine if this was an isolated incident or if the bay is a nursery ground for S. lewini.
References
Anislado, V. (2000). Ecología pesquera del tiburón martillo, en el litoral del estado de Michoacán, México. (Tesis de maestría), Universidad Nacional Autónoma de México, México DF.
Anislado, V., Gallardo, M., Amezcua, F., & Mendoza, C. (2008). Age and growth of the scalloped hammerhead shark, Sphyrna lewini (Griffith & Smith, 1834) from the Southern coast of Sinaloa, México. Hidrobiológica, 18(1), 31-40.
Baum, J. K., Myers, R., Kehler, D., Worm, B., Harley, S., & Doherty, P. 2003. Collapse and conservation of shark populations in the Northwest Atlantic. Science, 299, 389-392.
Bigelow, H., & Schroeder, W. (1948). Sharks. In J. Tree-Van, C. Breder, S. Hildebrand, A. Parr, & W. Schroeder (Eds.), Fishes of the Western North Atlantic. Part 1 (pp. 59-546). New Haven, CT., USA: Memoirs of the Sears Foundation for Marine Research, Yale University.
Branstetter, S. (1987). Age, growth and reproductive biology of the silky shark, Carcharhinus falciformis, and the scalloped hammerhead, Sphyrna lewini, from the northwestern Gulf of Mexico. Environmental Biology of Fishes,19(3), 161-173.
Bussing, W. A., & Lopez, M. I. (2005). Fishes of Cocos Island and Reef Fishes of the Pacific Coast of Lower Central. Revista Biología Tropical, 53(Supplement 2), 1-192.
Bustamante, C. (2014). Biology, taxonomy and distribution of south-east Pacific cartilaginous fishes. (Ph.D. thesis). University of Queensland, Queensland, Australia.
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.
Clarke, T. A. (1971). The ecology of the scalloped hammerhead shark, Sphyrna lewini, in Hawaii. Pacific Science, 25, 133-144.
Compagno, L., Krupp, F., & Schneider, W. (1995). Tiburones. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K. Carpenter & V. Niem (Eds.), Pacífico centro-oriental. Volumen II. Vertebrados- Parte I. Guía FAO para la identificación de especies para los fines de la pesca (pp. 647-743). Roma, Italia: FAO.
Compagno, L., Dando, M., & Fowler, S. (2005). Sharks of the World. Princeton, New Jersey, USA: , Princeton University Press.
Duncan, K. M., & Holland, K. N. (2006). Habitat use, growth rates and dispersal patterns of juvenile scalloped hammerhead sharks Sphyrna lewini in a nursery habitat. Marine Ecology Progress Series, 312, 211-221.
Garrison, G. (2005). Fish of Isla del Coco/Peces de la Isla del Coco. Santo Domingo, Heredia, Costa Rica: Editorial INBio.
Hearn, A., Utreras, E., & Henderson, S. (Eds.). (2010). Informe sobre el estado de los tiburones del Pacífico Este Tropical. Quito, Ecuador: Conservación Internacional.
Heupel, M., Carlson, J., & Simpfendorfer, C. (2007). Shark nursery areas: concepts, definition, characterization and assumptions. Marine Ecology Progress Series, 337, 287-297.
Kotas, J. E., Mastrochirico, V., & Petrere Jr., M. (2011). Age and growth of the Scalloped Hammerhead shark, Sphyrna lewini (Griffith and Smith, 1834), from the southern Brazilian coast. Brazilian Journal of Biology, 71(3), 1-7.
Miller, M., Carlson, J., Cooper, P., Kobayashi, D., Nammack, M., & Wilson, J. (2013). Status review report: Scalloped hammerhead Shark (Sphyrna lewini).(Report to National Marine Fisheries Service, Office of Protected Resources). Maryland, USA: NOAA’s National Marine Fisheries Service.
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, Ensenada, Baja California, México.
Sibaja-Cordero, J. A. (2008). Tendencias espacio-temporales de los avistamientos de fauna marina en los buceos turísticos (Isla del Coco, Costa Rica). Revista Biología Tropical, 56(Supplement 2), 113-132.
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(Supplement 4), 1387-1403.
Sibaja-Cordero, J. A., Troncoso, J. S., Benavides-Varela, 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(Supplement 3), 53-66.
Springer, S. (1967). Social organization of shark populations. In W. Gilbert, R. Mathewson & D. Rall (Eds.), Sharks, Skates and Rays (pp. 149-174). Baltimore, USA: John Hopkins University Press.
White, E. R., Myers, M. C., Flemming, J., &. Baum, J. K. (2015). Shifting elasmobranch community assemblage at Cocos Island-an isolated marine protected area. Conservation Biology, 29(4), 1186-1197.
Zanella, I., & López-Garro, A. (2015). Abundancia, reproducción y tallas del tiburón martillo Sphyrna lewini (Carcharhiniformes: Sphyrnidae) en la pesca artesanal de Golfo Dulce, Pacífico de Costa Rica. Revista Biología Tropical, 63(Supplement 1), 307-317.
Zanella, I., López-Garro, A., Golfín-Duarte, G., & Saenz, J. C. (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(Supplement 3), 339-346.
Zarate, J. (2010). Edad y crecimiento del tiburón martillo (Sphyrna lewini) (Griffith & Smith, 1834) en la Costa Sur de Oaxaca, México. (Tesis de maestría). Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Baja California Sur, México.
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