Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina)
The aim of this work is to evaluate the ecological quality of waters along an environmentally heterogeneous basin, using macroinvertebrate biotic indices (BI). Twelve sampling sites were selected in the Río Grande basin, following an altitudinal gradient across the Puna, Monte and Yungas ecoregions. Sampling was conducted in the dry and rainy seasons, during three consecutive years (2012 to 2014). At each site, physico-chemical parameters were measured and benthic macroinvertebrates were collected. Principal component analysis (PCA) was applied to explore environmental variability in terms of physico-chemical parameters. The water quality of the basin was assessed by means of different biotic indices. Correlation analyses were performed between the biotic indices and the physicochemical parameters. Altitude, NaCl, total dissolved solids (TDS) and electrical conductivity were higher at the Puna and Monte sites, while river discharge, width and depth were higher at the Yungas sites. Biotic indices suggested good water quality. The BMWP (Biomonitoring Working Party) and family richness were the most suitable indices to simultaneously compare the rivers of the different ecoregions. The change in the composition of macroinvertebrate assemblages was observed at an altitude of 1500 m a. s. l., separating arid and humid zones and coinciding with inflection points of conductivity, NaCl and TDS.
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Asociación Argentina de Ecología
2022
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Gomez, Graciela C. Molineri, Carlos |
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Gomez, Graciela C. Molineri, Carlos Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina) |
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Gomez, Graciela C. Molineri, Carlos |
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Gomez, Graciela C. |
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Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina) |
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Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina) |
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Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina) |
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Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina) |
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Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina) |
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water quality assessment through biotic indices in a heterogeneous basin (río grande, jujuy, argentina) |
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The aim of this work is to evaluate the ecological quality of waters along an environmentally heterogeneous basin, using macroinvertebrate biotic indices (BI). Twelve sampling sites were selected in the Río Grande basin, following an altitudinal gradient across the Puna, Monte and Yungas ecoregions. Sampling was conducted in the dry and rainy seasons, during three consecutive years (2012 to 2014). At each site, physico-chemical parameters were measured and benthic macroinvertebrates were collected. Principal component analysis (PCA) was applied to explore environmental variability in terms of physico-chemical parameters. The water quality of the basin was assessed by means of different biotic indices. Correlation analyses were performed between the biotic indices and the physicochemical parameters. Altitude, NaCl, total dissolved solids (TDS) and electrical conductivity were higher at the Puna and Monte sites, while river discharge, width and depth were higher at the Yungas sites. Biotic indices suggested good water quality. The BMWP (Biomonitoring Working Party) and family richness were the most suitable indices to simultaneously compare the rivers of the different ecoregions. The change in the composition of macroinvertebrate assemblages was observed at an altitude of 1500 m a. s. l., separating arid and humid zones and coinciding with inflection points of conductivity, NaCl and TDS. |
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Asociación Argentina de Ecología |
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2022 |
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https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1704 |
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AT gomezgracielac waterqualityassessmentthroughbioticindicesinaheterogeneousbasinriograndejujuyargentina AT molinericarlos waterqualityassessmentthroughbioticindicesinaheterogeneousbasinriograndejujuyargentina AT gomezgracielac evaluaciondelacalidaddelaguaalolargodeunacuencaheterogeneariograndejujuyargentina AT molinericarlos evaluaciondelacalidaddelaguaalolargodeunacuencaheterogeneariograndejujuyargentina |
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rev-ecoaus-article-17042024-03-07T11:14:12Z Water quality assessment through biotic indices in a heterogeneous basin (Río Grande, Jujuy, Argentina) Evaluación de la calidad del agua a lo largo de una cuenca heterogénea (Río Grande, Jujuy, Argentina) Gomez, Graciela C. Molineri, Carlos biological integrity aquatic insects biotic index river basin water quality integridad biológica insectos acuáticos índice biótico cuenca hídrica calidad del agua The aim of this work is to evaluate the ecological quality of waters along an environmentally heterogeneous basin, using macroinvertebrate biotic indices (BI). Twelve sampling sites were selected in the Río Grande basin, following an altitudinal gradient across the Puna, Monte and Yungas ecoregions. Sampling was conducted in the dry and rainy seasons, during three consecutive years (2012 to 2014). At each site, physico-chemical parameters were measured and benthic macroinvertebrates were collected. Principal component analysis (PCA) was applied to explore environmental variability in terms of physico-chemical parameters. The water quality of the basin was assessed by means of different biotic indices. Correlation analyses were performed between the biotic indices and the physicochemical parameters. Altitude, NaCl, total dissolved solids (TDS) and electrical conductivity were higher at the Puna and Monte sites, while river discharge, width and depth were higher at the Yungas sites. Biotic indices suggested good water quality. The BMWP (Biomonitoring Working Party) and family richness were the most suitable indices to simultaneously compare the rivers of the different ecoregions. The change in the composition of macroinvertebrate assemblages was observed at an altitude of 1500 m a. s. l., separating arid and humid zones and coinciding with inflection points of conductivity, NaCl and TDS. El objetivo de este trabajo fue evaluar la calidad ecológica del agua a lo largo de una cuenca heterogénea utilizando índices bióticos basados en macroinvertebrados. Se seleccionaron 12 sitios de muestreo en la cuenca del Río Grande en un gradiente altitudinal a través de las ecorregiones Puna, Monte y Yungas. La colecta de muestras se realizó durante la temporada seca y la de lluvias, a lo largo de tres años consecutivos (2012 a 2014). En cada sitio se midieron los parámetros físico-químicos y se recolectaron macroinvertebrados bentónicos. Para estudiar la variabilidad ambiental en base a parámetros físico-químicos se realizó un análisis de componentes principales. La calidad del agua de la cuenca se evaluó por medio de diferentes índices bióticos. Se correlacionaron los valores de los índices bióticos y los parámetros físico-químicos. La altitud, el NaCl, los sólidos disueltos totales (SDT) y la conductividad presentaron valores mayores en los sitios de la Puna y el Monte, mientras que el caudal, el ancho y la profundidad fueron mayores en los sitios de las Yungas. Los índices bióticos aplicados sugirieron una buena calidad del agua. El BMWP (Biomonitoring Working Party) y la riqueza de familias resultaron los índices más adecuados para comparar simultáneamente los ríos de las diferentes ecorregiones. Se observó el cambio de la composición de los ensambles de macroinvertebrados a una altitud de 1500 m s. n. m., separando las zonas áridas de las zonas húmedas y coincidiendo con puntos de inflexión de la conductividad, el NaCl y los SDT. Asociación Argentina de Ecología 2022-04-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Articles Artículos application/pdf application/pdf https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1704 10.25260/EA.22.32.1.0.1704 Ecología Austral; Vol. 32 No. 1 (2022): April 2022. Pages 001-194; 001-009 Ecología Austral; Vol. 32 Núm. 1 (2022): April 2022. Pages 001-194; 001-009 1667-782X 0327-5477 eng https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1704/1146 https://ojs.ecologiaaustral.com.ar/index.php/Ecologia_Austral/article/view/1704/1147 Derechos de autor 2022 Graciela C. Gomez, Carlos Molineri https://creativecommons.org/licenses/by/3.0/ |