Abstract (en):
The eastern Antioquia region of Colombia's central mountain range, is characterize by steep altitudinal gradients and rich hydrological resources, with the majority of the drainage flowing into the middle Magdalena River. To compile a taxonomic list of the fish of eastern Antioquia, three sources of information were used: i) the revision of unpublished literature available in regional libraries, ii) revision icthyological collections with vouchers of the region, and iii) specific field work in unstudied aquatic systems. A total of 103 species belonging to eight orders and 25 families were found. The majority of the species found belonged to the families Characidae, Astroblepidae, Loricariidae and Trichomycteridae. Of the species collected, 32 are new records for the region and four are apparently new to science. Eight exotics species are introduced, now established in natural systems. With this study the total for the region increased considerably above the 49 species that had been previously reported in literature, much of which is from the 1980's. It is important to increase collecting efforts in the eastern Antioquia region, due to the underestimation of it's fish biodiversity.
Abstract (es):
La región del Oriente de Antioquia, ubicada en la cordillera Central de Colombia, se caracteriza por un amplio gradiente altitudinal, presentando gran riqueza hídrica, donde la mayoría de sus cuencas drenan hacia la cuenca media del río Magdalena. Con el objetivo de elaborar un listado taxonómico actualizado de los peces del Oriente de Antioquia, se usaron tres fuentes de información: i) revisión de la información disponible en bibliotecas regionales; ii) revisión de colecciones que tuvieran registros del área estudiada; iii) colectas puntuales en cuencas sin información previa. Se registran 103 especies pertenecientes a ocho órdenes y 25 familias. Las familias que presentaron la mayor riqueza fueron Characidae, Astroblepidae, Loricariidae y Trichomycteridae. De las especies colectadas 32 son registros nuevos para la región y aparentemente cuatro de ellas son nuevas especies. Ocho de las especies han sido introducidas y se encuentran en ambientes naturales. El número total de especies aumenta considerablemente el número registrado en la literatura recopilada (49 especies), siendo que la mayor parte de estos documentos fueron producidos en la década de 1980 a 1990. Es importante aumentar los muestreos en el oriente de Antioquia, pues su riqueza de peces ha sido subestimada.
Keywords:
Peces, Andes de Colombia, Cuenca Magdalena medio (es)
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How to Cite
Maldonado-Ocampo, J. A., & Jaramillo-Villa, Úrsula. (2008). Peces del oriente de Antioquia, Colombia. Biota Colombiana, 9(2). Retrieved from https://revistas.humboldt.org.co/index.php/biota/article/view/204
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