Habitat suitability model for Amatitlania nigrofasciata and ecological flows in Cara Sucia river, El Salvador

Authors

  • José Alberto González Leiva Instituto para el Crecimiento Sostenible de la Empresa (ICSEM)
  • Jhoanna Vanessa Segovia de González Universidad Francisco Gavidia https://orcid.org/0000-0001-8548-3790
  • Guillermo Arturo Cornejo Hernández Ministry of the Environment and Natural Resources
  • José Carlos Revelo Vidaurre Independent Consultant
  • Jacqueline Maythé Morán Villatoro National Polytechnic Institute (CICIMAR-IPN)

DOI:

https://doi.org/10.5377/ryr.v0i54.11537

Keywords:

Amatitlania nigrofasciata, ecological flow, suitability index, simulation of physical habitat, SEFA

Abstract

The calculation of ecological flows of rivers in El Salvador, is based on hydraulic methodologies oriented the use of water, without taking integrity and ecological function. The case study of the Cara Sucia River is presented, where the ecological flow was determined by eco-hydraulic methodologies using Amatitlania nigrofasciata as bioindicator. The habitat suitability curve of A. nigrofasciata is estimated with depth, water velocity and type of substrate. The species prefers habitats with depths of 0.2-0.7 m (juveniles and adults) and up to 0.8 m in the rainy season; on rocky substrates, litter and submerged vegetation, with speeds of 0.3-0.6 m/s in both seasons. The simulation of the physical environment showed flow rates of 1.0 m3/s with habitable conditions
for the species and potential habitat with flows of 2.2 m3/s (juveniles) and 5.0 m3/s (adults). Conditions of water stress due to climate change and anthropogenic activities will affect this ecosystem, eliminating local ecological and economic functions.

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Author Biographies

José Alberto González Leiva, Instituto para el Crecimiento Sostenible de la Empresa (ICSEM)

Degree in Biology from the University of El Salvador
Master in Biology from the University of Costa Rica (UCR)

Jhoanna Vanessa Segovia de González, Universidad Francisco Gavidia

Associate researcher at the Institute of Science, Technology and Innovation (ICTI), at the Francisco Gavidia University (UFG)

Guillermo Arturo Cornejo Hernández, Ministry of the Environment and Natural Resources

Cand. Master in Hydrology from the University of Costa Rica (UCR)

José Carlos Revelo Vidaurre, Independent Consultant

Civil Engineer, hydraulic specialist from the José Simeón Cañas Central American University (UCA)

Jacqueline Maythé Morán Villatoro, National Polytechnic Institute (CICIMAR-IPN)

Degree in Biology from the University of El Salvador
Master in Marine Sciences from the Interdisciplinary Center for Marine Sciences of the
National Polytechnic Institute (CICIMAR-IPN)
Pacific Energy (EDP)

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Published

2021-08-24

How to Cite

González Leiva, J. A., Segovia de González, J. V., Cornejo Hernández, G. A. ., Revelo Vidaurre, J. C. ., & Morán Villatoro, J. M. . (2021). Habitat suitability model for Amatitlania nigrofasciata and ecological flows in Cara Sucia river, El Salvador. Reality and Reflection, 54(54), 95–111. https://doi.org/10.5377/ryr.v0i54.11537

Issue

Vol. 54 No. 54 (2021): Ecosistemas acuáticos de El Salvador

Section

Articles

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