Benthic macroinvertebrates community as quality bioindicator of water in a sector of the Chotano river, Perú
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| Autores: | , |
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| Formato: | artículo original |
| Fecha de Publicación: | 2022 |
| Descripción: | Two stations were established in a sector of the Chotano river, with the objective of evaluating the quality of the water, using benthic macroinvertebrates as bioindicators, for which biological indices were used: IBMWP, ETP %, diversity, richness, equity, dominance, density and trophic groups. The collection of macroinvertebrates was carried out using the Surber sampler, in two periods (dry and rainy). In the first season, an average of 710 ind/m2 were collected, classified in 23 taxa of the orders diptera, ephemeroptera and tricoptera, and in the second season 16790 ind/m2 were collected, with 6 taxa of the orders haplotaxide and diptera, the species indicating organic pollution, Chironomus sp, Tubbier sp and Psychoda sp, present mostly in season 2. The highest average indices in season 1 compared to season 2 were IBMWP with 60 points indicating moderately polluted doubtful water quality and 11 points indicating highly polluted critical quality, the diversity of Shannon - Wiener 1,33 and 0,30 indicating waters with limited diversity, the equity of Pielou 0,50 show more stable and 0,20 less stable populations; the lowest indices in station 1 compared to season 2 were, Simpson dominance 0,37 indicator of low dominance and higher diversity and 0,9 indicator of higher dominance, lower diversity and higher organic pollution. |
| País: | RepositorioTEC |
| Institución: | Instituto Tecnológico de Costa Rica |
| Repositorio: | RepositorioTEC |
| Lenguaje: | Español |
| OAI Identifier: | oai:repositoriotec.tec.ac.cr:2238/14091 |
| Acceso en línea: | https://revistas.tec.ac.cr/index.php/tec_marcha/article/view/5662 https://hdl.handle.net/2238/14091 |
| Palabra clave: | Organic pollution benthic macroinvertebrates water quality biodiversity Contaminación orgánica macroinvertebrados bentónicos calidad del agua biodiversidad |