Open AccessDOI
Ictiofauna y desarrollo del sector hidroeléctrico en la cuenca del río Magdalena-Cauca, Colombia
Luz F. Jiménez-Segura,Daniel Restrepo-Santamaría,Silvia López-Casas,Juliana Delgado,Mauricio Valderrama,Jonathan Álvarez,Daniel Varona Gómez +6 more
- Vol. 15, Iss: 2, pp 3-25
Reads0
Chats0
TLDR
In this article, an analysis of the altitudinal distribution of endemic and migratory fish species and their implications for their conservation based on the current and future state in theformation of reservoirs, using a review of case studies at global and national levels.Abstract:
The Magdalena-Cauca River basin has 213 species of freshwater fish, of which slightly more than 50% are
endemic. This basin accounts for 80% of the Colombian population, holds 80% of the national GDP and within its
channels are located the 84% of the hydroelectric plants that supply energy to Colombia. The Andean mountains
generate altitudinal gradients in aquatic systems as well as its associated biota along the Magdalena-Cauca basin.
To analyze the interaction between the altitudinal gradient in the distribution of species of freshwater fish and
the location of existing reservoirs, it was performed an analysis of the altitudinal distribution of endemic and
migratory fish species and their implications for their conservation based on the current and future state in the
formation of reservoirs, using a review of case studies at global and national levels. It was found that the number
of species is inversely proportional to altitude, while the endemics are directly proportional and reservoirs below
700 m altitude affect the conservation status of migratory species. A reservoir creates new species richness
gradients and modifies the channels that are used by migratory species as spawning areas. We conclude that the development of the hydropower based on the use of water in the Andean rivers and another activities associated with economic development of Colombian society, has led to changes in freshwater aquatic systems in the Magdalena-Cauca basin, influences in the structure of the assemblages of species of fish and in the dynamic of migration and spawning of freshwater fish species important for artisanal fisheries.read more
Citations
More filters
Journal ArticleDOI
Basin-scale impacts of hydropower development on the Mompós Depression wetlands, Colombia
Hector Angarita,Hector Angarita,A. J. Wickel,Jack Sieber,John Chavarro,Javier A. Maldonado-Ocampo,Guido A. Herrera-R,Guido A. Herrera-R,Juliana Delgado,David Purkey +9 more
TL;DR: In this article, the authors implemented an integrated approach focused on key attributes of medically functional floodplains, including hydrologic connectivity between the Magdalena River and the floodplain, and between upstream and downstream sections.
Journal ArticleDOI
Assessing conservation priorities of endemic freshwater fishes in the Tropical Andes region
Marcelo F. Tognelli,Elizabeth P. Anderson,Luz F. Jiménez-Segura,Junior Chuctaya,Junior Chuctaya,Luisa Chocano,Javier A. Maldonado-Ocampo,Lina Mesa-Salazar,José Iván Mojica,Fernando M. Carvajal-Vallejos,Vanessa Correa,Hernán Ortega,Juan F. Rivadeneira Romero,Paula Sánchez-Duarte,Neil A. Cox,Max Hidalgo,Pedro Jiménez Prado,Carlos A. Lasso,Jaime Sarmiento,Miguel A. Velásquez,Francisco A. Villa-Navarro +20 more
TL;DR: Marcelo F. Tognelli as discussed by the authors | Elizabeth P. Anderson | Luz F. Jiménez-Segura | Junior Chuctaya | Luisa Chocano | Javier A. Velásquez | Francisco A. Villa-Navarro
Journal ArticleDOI
Ecological niche modeling as an effective tool to predict the distribution of freshwater organisms: The case of the Sabaleta Brycon henni (Eigenmann, 1913).
TL;DR: The results support the good performance of ENMs to predict the potential distribution of the Sabaleta and the utility of this tool in conservation and decision-making at the national level.
Journal ArticleDOI
Aquatic macroinvertebrates as water quality bioindicators in Colombia: A systematic review
TL;DR: A systematic review of 109 references to analyze scientific production related to the evaluation of water quality in Colombian freshwater ecosystems, using aquatic macroinvertebrates describes bibliographical, geographical, ecological, and methodological characteristics of these studies.
Journal ArticleDOI
Potential ecological and socio-economic effects of a novel megaherbivore introduction: the hippopotamus in Colombia
Amanda L. Subalusky,Elizabeth P. Anderson,Germán Jiménez,David M. Post,David Echeverri Lopez,Sebastián García-R,Laura Johanna Nova León,Juan Felipe Reátiga Parrish,Ana Rojas,Sergio Solari,Luz F. Jiménez-Segura +10 more
TL;DR: A recent introduction of the hippopotamus Hippopotamus amphibius into Colombia is a novel introduction of a megaherbivore onto a new continent, and raises questions about the future dynamics of the socio-ecological system into which it has been introduced as mentioned in this paper.