Biomonitoring of the confluence of the Maguaca and Yuna rivers, Cotui, Dominican Republic

Authors

  • Juan Miguel Arias Moronta Escuela de Ingeniería Agronómica, Facultad de Ciencias Agronómicas y Veterinarias. Egresado de Maestría en Manejo y Gestión Integral de Cuencas Hidrográficas, Centro Agronómico Tropical de Investigación y Enseñanza, Costa Rica. juan.arias@catie.ac.cr https://orcid.org/0009-0000-4166-598X
  • Pedro Antonio Núñez Ramos Docente e Investigador, Instituto Nacional de Investigaciones, Facultad de Ciencias Agronómicas y Veterinarias, Universidad Autónoma de Santo Instituto Dominicano de Investigaciones Agropecuarias y Forestales, República Dominicana. pnunez25@uasd.edu.do https://orcid.org/0000-0001-7580-7931
  • Laura Benegas Negrí Coordinadora, Maestría Manejo y Gestión Integral de Cuencas Hidrográficas, Centro Agronómico Tropical de Investigación y Enseñanza, Costa Rica. laura.benegas@catie.ac.cr https://orcid.org/0000-0002-1890-0213
  • José Ney Ríos Docente, Unidad de Manejo y Gestión Integral de Cuencas Hidrográficas, Centro Tropical de Investigación y Enseñanza, Costa Rica. ney.rios@catie.ac.cr https://orcid.org/0000-0002-7785-4413

DOI:

https://doi.org/10.53287/vhxc2936ph54m

Keywords:

physicochemical parameters, benthic macroinvertebrates, BMWP-Cub method, basin

Abstract

The degradative processes such as mining cause loss of species, forest cover, ecosystem services and contaminate bodies of water. Under this problem, the behavior of the water quality of the confluence of the Maguaca and Yuna rivers, in the municipality of Cotuí, Dominican Republic, associated with mining activities, was determined. The research was carried out during two moments: December 2020 (t1) and February 2021 (t2). For this, a deterministic sampling of seven equidistant points in the Maguaca River, and two in the Yuna River, was carried out at t1 in rainy season and t2 in dry season. In addition, the presence of benthic macroinvertebrate species was analyzed as indicators of water quality according to the BMWP-Cub method, and the composition and structure of the riparian vegetation was determined. Likewise, the spatial behavior of the physicochemical variables of water such as potential hydrogen (pH), salinity, electrical conductivity (EC), turbidity, biological oxygen demand (BOD), nitrates (NO3-), chemical oxygen demand (COD), phosphates (PO43-), temperature, dissolved oxygen (O2D), total organic carbon (TOC), and iron concentration (Fe). Water of critical quality (very contaminated) was obtained in the upper part and very critical quality (heavily contaminated) in the lower part, at both times. It is recommended to strengthen monitoring policies for environmental, socioeconomic and health effects.

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Published

2024-04-29

How to Cite

Arias Moronta, J. M., Núñez Ramos, P. A., Benegas Negrí, L., & Ney Ríos, J. (2024). Biomonitoring of the confluence of the Maguaca and Yuna rivers, Cotui, Dominican Republic. Revista De Investigación E Innovación Agropecuaria Y De Recursos Naturales, 11(1), 57–66. https://doi.org/10.53287/vhxc2936ph54m

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ARTÍCULOS ORIGINALES

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