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| Format: | Artículo científico |
| Sprache: | en |
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Universidad Nacional Autónoma de México
2019
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| Online-Zugang: | https://www.redalyc.org/articulo.oa?id=42562784044 https://www.redalyc.org/journal/425/42562784044/ https://www.redalyc.org/journal/425/42562784044/html/ https://www.redalyc.org/journal/425/42562784044/42562784044.epub https://www.redalyc.org/journal/425/42562784044/movil |
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Inhaltsangabe:
- Fish fauna and its environmental relationship in an endorheic basin of Zacatecas, Mexico Fernando Solís-Carlos Gorgonio Ruiz-Campos María de Lourdes Lozano-Vilano Juana Claudia Leyva-Aguilera Biología Fishes Composition Distribution Aguanaval basin Environmental factors We studied the fish fauna of the Río Saín Alto (Río Aguanaval endorheic basin) in Zacatecas, Mexico, during the dry (May) and wet (October) seasons of 2011 in order to evaluate changes in the distribution of the species and its relationship with environmental variables. A total of 12 fish species (6 native and 6 exotic) were registered. The longitudinal distribution of the species in the river during both seasons combined was 2 native species (Gila conspersa and Catostomus nebuliferus) with ample distribution in the river (upper, middle and lower zones), 2 native species (Campostoma ornatum and Notropis nazas) in 2 zones of the river (middle and lower), 4 species (2 native: Astyanax mexicanus and Etheostoma pottsii, and 2 exotic: Cyprinus carpio and Oreochromis sp.) in the middle zone of the river, and 4 exotic species (Gambusia affinis, Lepomis cyanellus, Lepomis macrochirus, and Micropterus salmoides) with distribution confined to the lower zone of the river, especially in reservoirs. Species richness decreased with altitude and after a flooding event. The factor analysis model determined that both altitude and flow velocity were the factors that best explained the variation in the distribution of fish species during the rainy season, especially for the exotic component. 2019 artículo científico 1870-3453 https://www.redalyc.org/articulo.oa?id=42562784044 https://www.redalyc.org/journal/425/42562784044/ https://www.redalyc.org/journal/425/42562784044/html/ https://www.redalyc.org/journal/425/42562784044/42562784044.epub https://www.redalyc.org/journal/425/42562784044/movil 10.22201/ib.20078706e.2019.90.2393 en http://www.redalyc.org/revista.oa?id=425 Revista Mexicana de Biodiversidad application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Biodiversidad (México) Vol.90