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Cambridge University Press, Marine Biodiversity Records, (7)

DOI: 10.1017/s1755267214000967

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First record for the Caribbean Sea of the shark Echinorhinus brucus captured in Venezuelan waters

Journal article published in 2014 by Ángel Fariña, Javier Quinteiro ORCID, Manuel Rey-Méndez
This paper is available in a repository.
This paper is available in a repository.

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Abstract

The capture of a female of the bramble shark, Echinorhinus brucus, is presented. It was obtained by sport fishing in Venezuela at a depth of 200 m. Morphological identification is confirmed by comparative analysis of the mitochondrial COX1 gene sequence. This is the first record for this species in the Caribbean Sea. The family Echinorhinidae comprises a group of squaliform sharks that are distinguished within the order by presenting the origin of the first dorsal fin behind the pelvic fins origin (Compagno & Niem, 1998). This taxonomic group includes a single genus with two species: Echinorhinus brucus (Bonnaterre, 1788) and E. cookei (Pietschmann, 1928). According to Froese & Pauly (2012), E. brucus is a widely spread species, distributed in the western Atlantic: Virginia and Massachusetts (USA) and Argentina; in the eastern Atlantic: from the North Sea to the Mediterranean, Morocco until Cape of Good Hope, South Africa; in the western Indian Ocean: India, Mozambique, South Africa; in the western Pacific: Japan, southern Australia, New Zealand; with records from Oman and Kiribati possibly uncertain, and it seems to be absent from the eastern Pacific Ocean. For E. cookei, the quoted authors indicate that its area of distribution is the western Pacific: Japan, Taiwan, Palau, Australia and New Zealand; to the eastern Pacific: Hawaii, USA, Gulf of California, and from Costa Rica to Peru and Chile. Until now there has been no published observation about the presence of the Echinorhinus genus in the Caribbean Sea. These sharks are mainly captured between 100 and 200 m deep, and can reach depths of 650 m and possibly until 1500 m Material examined One female of E. brucus, with 252 cm total length and 76 kg whole weight. The animal was captured in July 2012 by sport fishing with rod and reel by Luis Alcalá and Vicente Reboll, on-board of the vessel 'Fidanzata', approximately between 10850 ′ and 118N and between 64850 ′ and 658W, on a submarine platform located at an average depth of 200 m between Margarita and La Tortuga islands, southern Caribbean Sea. The bait used was an entire squid, Loligo sp., of about 20 cm length. The estimated depth of capture was 200 m. Sections of the tissue, skin and dermal denticles were preserved in absolute ethanol and deposited in the, under the code TNEC-MT. Molecular identification