Abstract
Isla del Coco is an oceanic island 500km off the Pacific coast of Costa Rica. It is a National Park and its marine fauna has been relatively well protected. The island is famous for its elasmobranch (sharks, rays and skates) sightings in shallow waters. Here we present a catalogue of the deepwater elasmobranchs observed with the DeepSee submersible. Five species of sharks, six species of skates and one ray have been observed between 45 and 330m depth. Triaenodon obesus, the white tip reef shark, was commonly observed between 80 and 301m, but only in the afternoons. Sphyrna lewini, the scalloped hammerhead shark, was observed as deep a 303m, but commonly between 45 and 90m, and close to the island. Odontaspis ferox, the smalltooth sand tiger shark, was observed between 82 and 316m. Echinorhinus cookei, the prickly shark, was observed between 91 and 320m. Rhincodon typus, the whale shark, was observed only close to the island, between 77 and 80m. Taeniura meyeni, the marbled ray, was observed only close to the island, between 45 and 90m. A Dasyatis sp., similar to the the diamond stingray, was observed only once close to the island at 60m; this is the first report of this genus at Isla del Coco National Park. Manta birostris, the giant manta, was only observed close to the island at 90m. Mobula tarapacana, the sicklefin devil ray, was observed between 60 and 326m, extending its maximum depth almost 10 times what has been reported. Aetobatus narinari, the spotted eagle ray, was observed only close to the island between 60 and 82m. Torpedo peruana, the Peruvian torpedo ray, was observed only once at 313m, and is the first record of this species from Isla del Coco National Park. Citation: Cortés, J., A. Sánchez-Jiménez, J.A. Rodríguez-Arrieta, G. Quirós-Barrantes, P.C. González & S. Blum. 2012. Elasmobranchs observed in deepwaters (45-330m) at Isla del Coco National Park, Costa Rica (Eastern Tropical Pacific). Rev. Biol. Trop. 60 (Suppl. 3): 257-273. Epub 2012 Dec 01.References
Angulo, J. & A. Acero. 1999. Primer registro de Torpedo peruana Chirichigno (Elasmobranchii: Torpedinidae) para el Pacífico colombiano. Bol. Inv. Mar. Cost. 28: 185-190.
Alvarado, G.E. 2009. Los volcanes de Costa Rica: Geología, historia, riqueza natural y su gente, 3rd ed. Edit. UNED, San José, Costa Rica. 335 p.
Bessudo, S., G.A. Soler, P.A. Klimley, J. Ketchum, R. Arauz & A. Hearn. 2011a. Residency of the scalloped hammerhead shark (Sphyrna lewini) at Malpelo Island and evidence of migration to other islands in the Eastern Tropical Pacific. Environ. Biol. Fish. 91: 165-176.
Bessudo, S., G.A. Soler, P.A. Klimley, J. Ketchum, R. Arauz, A. Hearn, A. Guzmán & B. Calmettes. 2011b. vertical and horizontal movements of the scalloped hammerhead shark (Sphyrna lewini) around Malpelo and Cocos Islands (Tropical Eastern Pacific) using satellite telemetry. Bol. Invest. Mar. Cost. 40 (Supl. Esp.): 91-106
Bessudo-Lion, S. & S. Caballero-Gaitán. 2003. Primeras observaciones en su medio natural del tiburón Odontaspis ferox (Familia Odontaspidae) y confirmación taxonómica por métodos de identificación molecular en el Santuario de Fauna y Flora Isla Malpelo, Pacífico Colombiano. Abstract, p. 298. Décimo Congreso Latinoamericano de Ciencias del Mar (x-COLACMAR), San José, Costa Rica.
Bussing, W.A. & M.I. López. 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. Rev. Biol. Trop. 53 (Suppl. 2): 192 p.
Bussing, W.A. & M.I. López. 2009. Text: 453-458, Species list, CD: 412-473. In: I.S. Wehrtmann and J. Cortés (Eds.). Marine Biodiversity of Costa Rica, Central America. Springer, Berlin.
Compagno, L. 1984. Sharks of the World. An Annotated and Illustrated Catalogues of Shark Species Known Date. Part 1. Hexanchiformes to Lamniformes. FAO Species Ccatalogue. FAO Fish. Synop. 4: 249 p.
Compagno L. 2001. Species Catalogue the Shark of the World. An Annotated and Illustrated Catalogue of Shark Species Known to Date. FAO Species Catalogue for Fishery Purposes 1: 269 p.
Cortés, J. 2008. Historia de la investigación marina de la Isla del Coco, Costa Rica. Rev. Biol. Trop. 56 (Suppl. 2): 1-18.
Cortés, J. & S. Blum. 2008. Life to 450 m depth at Isla del Coco, Costa Rica. Rev. Biol. Trop. 56 (Suppl. 2): 189-206.
Dawson, C.L. & R.M. Starr. 2009. Movements of subadult prickly sharks, Echinorhinus cookei, in the Monterey Canyon. Mar. Ecol. Prog. Ser. 386: 153-262.
Feitoza, B.M., L.A. Rocha, O.J. Luiz,Jr, S.R Floeter & J.L. Gasparini. 2003. Reef fishes of St. Paul’s Rocks: new records and notes on biology and zoogeography. J. Ichthiol. Aquat. Biol. 7: 61-82.
Garrison G. 2005. Peces de la Isla del Coco/Isla del Coco Fishes, 2nd ed. Editorial INBio, Santo Domingo de Heredia, Costa Rica.
Lizano, O.G. 2001. Batimetría de la plataforma insular alrededor de la Isla del Coco, Costa Rica. Rev. Biol. Trop. 49 (Suppl. 2): 163-170.
Lizano, O.G. 2012. Lizano, O.G. 2012. Rasgos morfoló- gicos alrededor de la Isla del Coco y de sus montes submarinos vecinos, Pacífico de Costa Rica. Rev. Biol. Trop. 60 (Supl. 3): 43-51.
Long, D.J., J.E. McCosker, S. Blum & A. Klapfer. 2011. Tropical Eastern Pacific records of the Prickly Shark, Echinorhinus cookei (Chondrichthyes: Echinorhinidae). Pac. Sci. 65: 433-440
López-Garro, A., I. Zanella, G. Golfín-Duarte & M. PérezMontero. 2012. First record of the blacktip reef shark Carcharhinus melanopterus (Carcharhiniformes: Carcharhinidae) from the Eastern Tropical Pacific. Rev. Biol. Trop. 60 (Suppl. 3): 275-278.
McCosker, J.E. & R.H. Rosenblatt. 2010. The fishes of the Galápagos Archipelago: an update. Proc. California Acad. Sci. 4th Ser, 61 (Suppl. II): 167-195.
McEachran, J.D. & G. Notarbartolo di Sciara. 1995. Peces Batoideos. p. 745-792. In: W. Fischer, F. Krupp, F. Schneider, C. Sommer, K.E. Carpenter, & v.H. Niem (Eds.). Guía FAO para la identificación de especies para los fines de la pesca. Pacifico Centro-Oriental. vol. 2. vertebrados. Parte 1. FAO, Rome.
Mejía-Falla, P.A. & A.F. Navia. 2011. Relationship between body size and geographic range size of elasmobranchs from the Tropical Eastern Pacific: An initial approximation for their conservation. Cienc. Mar. 37: 305-321.
Rojas, J.R., C.I. Fuentes & N.R. Hernández. 2006. Echinorhinus cookei Pietschmann, 1928 (Chondrichthyes: Squaliformes, Echinorhinidae), primer registro en aguas de El Salvador, Pacífico oriental tropical. Rev. Biol. Mar. Oceanogr. 41: 117-119.
Rojas, W. & G.E. Alvarado. 2012. Geología y contexto geotectónico de la Isla del Coco y la zona marítima frente al Pacífico central de Costa Rica. Rev. Biol. Trop. 60 (Suppl. 3): 15-32.
Sánchez, A.C. 1997. Listado taxonómico de las especies marinas identificadas en los océanos Pacífico y Atlántico (Caribe) de Nicaragua. Ministerio de Economía y Desarrollo, MEDE PESCA, Managua, Nicaragua. 28 p.
Sibaja-Cordero, J.A. 2008. Tendencias espacio-temporales de los avistamientos de fauna marina en los buceos turísticos (Isla del Coco, Costa Rica). Rev. Biol. Trop. 56 (Suppl. 2): 113-132.
Starr, R.M., K. Green & E. Sala. 2012. Deep-water fish assemblages at Isla del Coco National Park and Las Gemelas Seamount, Costa Rica. Rev. Biol. Trop. 60 (Suppl. 3): 347-362.
Whitney, N.M. & P.J. Motta, 2008. Cleaner host posing behavior of whitetip reef sharks (Triaenodon obesus) in a swarm of hyperiid amphipods. Coral Reefs (Reef Site) 27: 363.
Whitney, N.M., H.L. Pratt & J.C. Carrier. 2004. Group courtship, mating behaviour and siphon sac function in the whitetip reef shark, Triaenodon obesus. Anim. Behav. 68: 1435-1442.
Zanella, I., A. López-Garro, G. Golfín-Duarte & J. C. Sáenz. 2012. Biología del tiburón punta blanca de arrecife, Triaenodon obesus (Carcharhiniformes: Carcharhinidae), en Bahía Chatham, Parque Nacional Isla del Coco, Costa Rica. Rev. Biol. Trop. 60 (Suppl. 3): 339-346.
Froese, R. & D. Pauly (Eds.). 2012. Fishbase. World Wide Web Electronic Publication. www.fishbase.org, version (08/2012). Downloaded: May, 2012.
IUCN. 2012. The IUCN Red List of Threatened Species. version 2011.2. . Downloaded: May 2012.
Robertson, D.R. & G.R. Allen. 2008. Peces Costeros del Pacífico Oriental Tropical: Sistema de Información en línea. versión 1.0. Instituto Smithsonian de Investigaciones Tropicales, Balboa, República de Panamá. www.neotropicalfishes.org/ Donwloaded: January 2012.