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Conservación del joturo (Nandopsis ramsdeni), pez fluvial endémico de Guantánamo y amenazado de extinción.

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Author
Begué-Quiala, Gerardo
Delgado, Jorge L.
Turro, Yordanis
Date
2018

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Alternative Title
Conservation of the joturo (Nandopsis ramsdeni), river fish endemic of Guantanamo and threatened of extinction.
Abstract
Con el presente trabajo se continuó el estudio y la evaluación de sitios y sistemas fluviales con presencia del joturo o biajaca del Guaso (Nandopsis ramsdeni Fowler, 1938), pez de agua dulce endémico del sistema fluvial de Guantánamo, también encontrado en algunos ríos adyacentes, en las provincias de Santiago de Cuba y Holguín. Se demostró que la población de Arroyo Hondo una de las localidades tipo de este pez se extinguió, se pudo comprobar que la presencia de especies introducidas e invasoras de la ictiofauna fluvial en algunos ríos ha diezmado a la biajaca del Guaso, por ejemplo, el pez gato (Clarias gariepinus) y se identifica al Parque Nacional Alejandro de Humboldt como el sitio más importante de su confinamiento poblacional. El joturo o biajaca del Guaso mostró una elevada afinidad por los fondos rocosos unido a su condición de ingeniera de hábitat le garantiza protección efectiva, ya que en más del 52 % de estos ríos predominan los fondos rocosos. Con los métodos cartográficos y el Sistema de Información Geográfica se diseñó un mapa del área, se actualizó el inventario ictiológico con determinación de presencia/ausencia del taxón, se hizo un análisis de morfometría comparada y se aplicaron entrevistas a pescadores de subsistencia en las comunidades locales.
With this work continued the study and evaluation of sites and river systems with the presence of the joturo or biajaca del Guaso (Nandopsis ramsdeni Fowler, 1938), freshwater fish endemic to the Guantánamo fluvial system, also found in some adjacent rivers, in the provinces of Santiago de Cuba and Holguin. It was shown that the population of Arroyo Hondo, one of the typical localities of this fish, became extinct. It was found that the presence of introduced and invasive species of the fluvial ichthyofauna in some rivers has decimated the joturo, for example, the fish cat (Clarias gariepinus) and Alejandro de Humboldt National Park is identified as the most important site of its population confinement. The joturo or biajaca of Guaso showed a high affinity for the rocky bottoms together with its condition of habitat engineer guarantees effective protection, since in more than 52 % of these rivers the rocky bottoms predominate. With the cartographic methods and the Geographical Information System, a map of the area was designed, the fish inventory was updated with determination of the presence/absence of the taxon, a comparative morphometry analysis was made and interviews were applied to subsistence fishermen in the local communities.
Journal
Revista Cubana de Investigaciones Pesqueras
Volume
35
Issue/Article Nr
2
Page Range
pp.46-54
URI
http://hdl.handle.net/1834/15120
Collections
Revista Cubana de Investigaciones Pesqueras

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