Primeros registros de la Orca pigmea Feresa attenuata (Cetacea, delphinidae) y del Cachalote enano Kogia simus (Cetacea, physeteridae) en Ecuador continental
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Primeros registros de la orca ...
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Date
1996
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Se presenta información sobre los primeros registros de la orca pigmea (Feresa attenuata) y del cachalote enano (Kogia simus) realizados en aguas costeras de Ecuador. La información se basa en un espécímen joven de orca pimea encontrado en la costa y en la cabeza colectada de un cachalote enano atrapado en una red agallera. Además se informa sobre el primer espécimen de un cachalote enano (K. simus) colectado en las islas Galápagos.A young specimen of pygmy killer whale (feresa attenuata), 91 cm long, stranded in San Pedro, province of Guayas (80°44'W, 01° 50'S) in 27 April 1992. The animal was frozen and examined after 20 days. External measurement and photographs of the specimen are presented. On 12 May 1993 a dwarf sperm whale (Kogia simus) got entangled in a gill-net 30 miles Southeast off Anconcito, Province of Guayas (02° 40'S, 81° 30'W) and the head was collected. It's total length was estimated in 2.2 m. Another specimen of the same species was found on a beach of Isabela Island. Province of Galpagos (02° 40' S, 81°30'W) in March 1990 and its sjeleton brought to the University of Guayaquil. Both specimens were identified by their skull characteristics. the continental specimen has a remarkable shorter rostrum than the other two specimen found in Southeast Pacific. The records of the pygmy killer whale from San Pedro 1 and the dwarf sperm whale caught off Anconcito are the first records of these species for ecuadorean continental waters.
Journal
Acta Oceanográfica del PacíficoVolume
8Issue/Article Nr
1Publisher or University
Instituto Oceanográfico de la Armada, Guayaquil, EcuadorCollections