Benthic macroinvertebrates as bioindicators of water quality on 4 islands of the Jambeli archipelago

Authors

DOI:

https://doi.org/10.26423/rctu.v12i1.867

Keywords:

Dominant species, Indexes, Macroinvertebrates, Mangrove

Abstract

Benthic macroinvertebrates are widely used due to their sensitivity to environmental changes. This study analyzes the biodiversity and distribution of benthic macroinvertebrate communities in four islands of the Jambelí Archipelago. Sampling was carried out in three zones, using standardized methodologies. Sixteen species belonging to 14 families distributed in four phyla were identified, being Mollusca the most representative, with 50% of species and 83.46% of individuals collected. Shannon-Wiener values ranged from 1 to 2, indicating moderate biodiversity and medium contamination. The Pielou index reflected an even distribution of species on Costa Rica and San Gregorio islands (close to 0.8), Tembleque and Buena Vista obtained values of (≈0.5). Likewise, the Margalef index showed values below 3 on all the islands, indicating low specific richness. Finally, the AMBI index was used and showed a slight disturbance.

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Author Biographies

  • Alex Dumany Luna Florin, Universidad Técnica de Machala UTMACH Machala - EC. CP 070151

    Maestría en Impactos Ambientales por la Universidad de Guayaquil

  • Juan Gabriel Paredes Moran, Universidad Técnica de Machala UTMACH Machala - EC. CP 070151

    Maestría en Gestión ambiental mención Desarrollo Sostenible 

Published

2025-06-26

Issue

Section

Original Articles

How to Cite

Benthic macroinvertebrates as bioindicators of water quality on 4 islands of the Jambeli archipelago. (2025). UPSE Scientific and Technological Magazine, 12(1), 10-22. https://doi.org/10.26423/rctu.v12i1.867