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| Format: | Artículo científico |
| Language: | es |
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Universidad de Costa Rica
2016
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| Online Access: | https://www.redalyc.org/articulo.oa?id=44947539009 https://www.redalyc.org/journal/449/44947539009/ https://www.redalyc.org/journal/449/44947539009/html/ https://www.redalyc.org/journal/449/44947539009/44947539009.epub https://www.redalyc.org/journal/449/44947539009/movil |
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Table of Contents:
- Diversidad y afinidades biogeográficas de los tiburones, rayas y quimeras (Chondrichthyes: Elasmobranchii, Holocephali) de México Luis Fernando Del Moral-Flores Juan J. Morrone Javier Alcocer Gerardo Pérez-Ponce de León Biología rays sharks Mexico chimaeras Biodiversity The diversity of chondrychthyans in Mexico is described. The fauna is composed by 214 species (111 sharks, 95 rays and 8 chimaeras) and represents 17.3 % of the total number of species recorded worldwide. The families with the highest diversity comprise: Rajidae (14.5 %), Carcharhinidae (12.1 %), Pentanchidae, Triakidae, and Urotrygonidae (5.1 %). In terms of geographical distribution, the diversity on the Mexican Pacific slope reaches up to 56.1 % of those species inhabiting Mexican marine and brackish waters (120 species, 62 genera, 37 families and 14 orders); the diversity in the Atlantic slope resulted similar to that on the Mexican Pacific with 55.1 % of the species (118 species, 59 genera, 35 families and 13 orders). The biogeographical affinities of the Mexican chondrychthyan fauna are complex with 19.7 % of the species being circumglobal, 9.9 % transatlantic, 1.9 % transpacific, and 9.4 % endemic to the exclusive economic zone. Additionally, 36.6 % of the species recorded so far are endemic to the Eastern Pacific coast where the species are similar to those found in the Cortez biogeographic province (27.7 %), followed by the Californian (20.7 %), Panamanian (19.3 %), Galapagos (5.6 %) and Peruvian-Chilean (8.9 %). Likewise, 33.3 % are endemic of the Atlantic coast, where species are similar to those found in the Caribbean province (31.9 %), followed by the Carolinean (24.4 %) and the Brazilian (6.6 %). Rev. Biol. Trop. 64 (4): 1469-1486. Epub 2016 December 01. 2016 artículo científico 0034-7744 https://www.redalyc.org/articulo.oa?id=44947539009 https://www.redalyc.org/journal/449/44947539009/ https://www.redalyc.org/journal/449/44947539009/html/ https://www.redalyc.org/journal/449/44947539009/44947539009.epub https://www.redalyc.org/journal/449/44947539009/movil es http://www.redalyc.org/revista.oa?id=449 Revista de Biología Tropical application/pdf Universidad de Costa Rica Revista de Biología Tropical (Costa Rica) Num.4 Vol.64