Evaluación del estado ecológico de la cuenca del río Íntag cantón Cotacachi, utilizando macroinvertebrados como bioindicadores de calidad de aguas
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Date
2020
Journal Title
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Publisher
PUCE - Ibarra
Abstract
La presente investigación se realizó en la comunidad de Nangulví Bajo, parroquia Peñaherrera del cantón Cotacachi, con el fin evaluar el estado ecológico del tramo del río Intag, utilizando el monitoreo de macroinvertebrados. En el estudio se recolectaron 2919 individuos, los órdenes más representativos fueron Trichoptera 19%, Ephemeroptera 16%, Hemíptera 16%, Odonata 13%. A nivel de familia las especies se consolidaron en Gomphidae con él 30%, Perlidae 15%, Veliidae 10% y Naucoridae 7%. Los muestreos obtenidos permitieron calcular el Índice Biótico Andino (ABI) el cual resultó “muy bueno” (124 a 144) en todos los puntos evaluados\; el índice de Hábitat Fluvial (IHF) resultó un estado entre “Regular” y “Bueno” (7.0 y 8.5)\; Índice de Calidad de Vegetación de Rivera Andino (QBR-and) obtuvo mala “Mala Calidad” (40) y “Buena Calidad (80), aunque en algunos índices se obtuvo puntuaciones de “Mala Cálida” y “Regular” la composición poblacional no se ve afectado en gran medida ya que este mismo alberga una alta diversidad de población de macroinvertebrados, y es un buena hábitat para el desarrollo de comunidades biológicas, esto nos verifica el índice ECOSTRIAND dando un buen estado ecológico del tramo fluvial evaluado, llegando a concluir con esta evaluación que el tramo fluvial del río Intag evaluado posee una recuperación favorable a las presiones antropogénicas ejercidas en la mismas, debido a que actualmente hay normas que restringen la generación de actividades aledañas a las cuenca hídricas, esto ha logrado conseguir de alguna manera la conservación de red hídrica, de esta manera es recomendable seguir creando normas, leyes, y seguir generando el levantamiento de información que nos ayuden a conservar todos los recursos ambientales que nos brinda nuestro entorno para tener un habitad favorable para el desarrollo de la vida no solo de flora y fauna, si no para el desarrollo de la vida del ser humano mismo.
This research was carried out in the community of Nangulví Bajo, Peñaherrera parish in the Cotacachi canton, in order to assess the ecological status of the Intag river section, using macroinvertebrate monitoring. The study collected 2919 individuals, the most representative orders were Trichoptera 19%, Ephemeroptera 16%, Hemiptera 16%, Odonata 13%. At the family level, the species were consolidated in Gomphidae with 30%, Perlidae 15%, Veliidae 10% and Naucoridae 7%. The obtained samples allowed to calculate the Andean Biotic Index (ABI) which was 'very good' (124 to 144) in all the points evaluated\; the Fluvial Habitat Index (IHF) was a state between 'Regular' and 'Good' (7.0 and 8.5)\; Rivera Andino Vegetation Quality Index (QBR-and) obtained poor 'Bad Quality' (40) and 'Good Quality (80), although in some indices scores of' Bad Warm 'and' Regular 'were obtained, the population composition did not It is affected to a large extent since it is home to a high diversity of macroinvertebrate population, and it is a good habitat for the development of biological communities. This is verified by the ECOSTRIAND index, giving a good ecological state of the evaluated river section, ending with this evaluation that the river section of the Intag river basin has a favorable recovery to the anthropogenic pressures exerted on it, because there are currently regulations that restrict the generation of activities adjacent to the water basins in the Cotacachi canton, this has given to achieve the conservation of the same watersheds, in this way it is advisable to continue creating norms and laws, to continue generating the lev Antamiento of information that help us conserve all the environmental resources that our environment gives us to have a favorable habitat for the development of life not only of flora and fauna, but also for the development of the life of the human being himself
This research was carried out in the community of Nangulví Bajo, Peñaherrera parish in the Cotacachi canton, in order to assess the ecological status of the Intag river section, using macroinvertebrate monitoring. The study collected 2919 individuals, the most representative orders were Trichoptera 19%, Ephemeroptera 16%, Hemiptera 16%, Odonata 13%. At the family level, the species were consolidated in Gomphidae with 30%, Perlidae 15%, Veliidae 10% and Naucoridae 7%. The obtained samples allowed to calculate the Andean Biotic Index (ABI) which was 'very good' (124 to 144) in all the points evaluated\; the Fluvial Habitat Index (IHF) was a state between 'Regular' and 'Good' (7.0 and 8.5)\; Rivera Andino Vegetation Quality Index (QBR-and) obtained poor 'Bad Quality' (40) and 'Good Quality (80), although in some indices scores of' Bad Warm 'and' Regular 'were obtained, the population composition did not It is affected to a large extent since it is home to a high diversity of macroinvertebrate population, and it is a good habitat for the development of biological communities. This is verified by the ECOSTRIAND index, giving a good ecological state of the evaluated river section, ending with this evaluation that the river section of the Intag river basin has a favorable recovery to the anthropogenic pressures exerted on it, because there are currently regulations that restrict the generation of activities adjacent to the water basins in the Cotacachi canton, this has given to achieve the conservation of the same watersheds, in this way it is advisable to continue creating norms and laws, to continue generating the lev Antamiento of information that help us conserve all the environmental resources that our environment gives us to have a favorable habitat for the development of life not only of flora and fauna, but also for the development of the life of the human being himself
Description
Keywords
Macroinvertebrados, Ecológico, Bioindicadores, Agua