Abstract (en):
Data derived from the literature supplemented with new collections made in the Inírida Fluvial Star (15th to 27th February 2008) reveal a species richness of 470 fishes species grouped in 224 genera, 40 families, and 10 orders. Its represents the higher species richness in the Orinoco River Basin. Orders with the largest numbers of species in the Star were Characiformes (237 species), Siluriformes (136 species), Perciformes (60 species), and Gymnotiformes (19 species), with the remaining 6 orders having from 1 to 7 species. At the family level, the Characidae has the greatest number of species (141 species), followed by the Cichlidae (55 species), Loricariidae (39 species), Pimelodidae (23 species), and Anostomidae (21 species); the remaining 35 families have 1 to 18 species. Present data indicate that 4 species are new records for the Orinoco River Basin and 19 are new for Colombia. The species richness by river was: 280 for the Inírida, 238 for Atabapo, 224 for Guaviare, and 82 for the Orinoco. In the Inírida Fluvial Star 335 species have commercial value as ornamentals, and 132 are harvested for food.
Abstract (es):
Datos provenientes de literatura, complementados con muestreos realizados en febrero de 2008 en la estrella fluvial de Inírida (confluencia entre los ríos Guaviare, Inírida, Atabapo y Orinoco), registran una riqueza de 470 especies agrupadas 224 géneros, 40 familias y diez órdenes, la mayor riqueza conocida para toda la Orinoquia. Los órdenes con el mayor número de especies son Characiformes (237 sp.), Siluriformes (136 sp.), Perciformes (60 sp.) y Gymnotiformes (19 sp.); los restantes seis órdenes tienen de una a siete especies. Al nivel de familia, Characidae posee el mayor número de especies (141 sp.), seguida de Cichlidae (55 sp.), Loricariidae (39 sp.), Pimelodidae (23 sp.) y Anostomidae (21 sp.); las restantes 35 familias tienen de una a 18 especies. Los datos registran cuatro especies por primera vez en la cuenca Orinoco y 19 nuevas especies para Colombia. La riqueza registrada para cada río fue, 280 para el río Inírida, 238 para el Atabapo, 224 para el Guaviare y 82 para el Orinoco. Se destaca el valor pesquero de la estrella fluvial, pues 335 especies tienen valor ornamental y 132 valor alimentario.
Keywords:
Biodiversidad, Cuenca del Orinoco, Ictiofauna, Río Guaviare, Río Inírida, Río Atabapo, Colombia (es)
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How to Cite
Lasso, C. A., Usma Oviedo, J. S., Villa, F., Sierra-Quintero, M. T., Ortega-Lara, A., Mesa, L. M., … Suárez, C. F. (2009). Peces de la estrella fluvial inírida: ríos Guaviare, Inírida, Atabapo y Orinoco (Orinoquía colombiana). Biota Colombiana, 10(1 y 2). Retrieved from https://revistas.humboldt.org.co/index.php/biota/article/view/220
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