Macroinvertebrados acuáticos de los cuerpos lénticos de la Región Maya, Guatemala

Fátima Reyes-Morales

doi:10.54495/Rev.Cientifica.v23i1.107

Authors

Fátima Reyes-Morales Dirección General de Investigación (DIGI), Facultad de Ciencias Químicas y Farmacia, Universidad de San Carlos de Guatemala

DOI:

https://doi.org/10.54495/Rev.Cientifica.v23i1.107

Keywords:

water quality, bioinbdicators, lentic, community, physicochemical

Abstract

The composition of aquatic macroinvertebrate community has been used to determine the ecological status of lentic ecosystems in many water quality studies. In this study, the community structure of the aquatic macroinvertebrates was surveyed in seven lentic bodies (Yaxhá, Sacnab, Petenchel, Quexil, Salpetén, Macanche y Sacpuy) located in the Mayan region in northern Guatemala. At each sampling site a maximum of six sampling stations were set and macroinvertebrate samples were collected with an Ekman dredge. In addition, measurements of the following physicochemical variables were taken: dissolved oxygen, temperature, pH, salinity, conductivity, total dissolved solids, nutrients, sulfate and depth. A total species richness of 38 taxa was found, Odonata, Coleoptera, Trichoptera and Ephemeroptera were the most diverse orders. Species diversity was high in places where there is no anthropogenic influence and tended to decrease as some human disturbance was observed. The distribution of aquatic macroinvertebrates was influenced by the type of substrate and physicochemical changes.

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