Integrating hydraulic, physicochemical and ecological models to assess the effectiveness of water quality management strategies for the River Cuenca in Ecuador

Holguin-Gonzalez, Javier E.; Boets, Pieter; Alvarado, Andrés; Cisneros, Félipe; Carrasco, María C.; Wyseure, Guido; Goethals, Peter

doi:10.1016/j.ecolmodel.2013.01.011

Cited by 24 publications

(11 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similarly, Dissolved Oxygen (DO) is a variable that in most cases is present to predict the occurrence of macroinvertebrates [51,56,57]. Nonetheless, DO was not a variable of the three GLMs in this research, an observation that was not expected in our research hypothesis.…”

Section: Analysis Of the Explanatory Variables In Relation To Responscontrasting

confidence: 47%

“…In this research, the aforementioned variable is part of the two predictable models for Leptoceridae and Perlidae whereas it is not a factor for the Baetidae model. Interestingly, Holguin-Gonzalez, et al [57] reported the flow velocity as a predictor of the presence of macroinvertebrates in Colombia. In the same way, Ríos-Touma, et al [11] in their research, in the high altitude tropical streams in Ecuador, found that flow velocity had influence in abundance, in communities such as Leptoceridae.…”

Section: Analysis Of the Explanatory Variables In Relation To Responsmentioning

confidence: 99%

See 1 more Smart Citation

A Methodology to Model Environmental Preferences of EPT Taxa in the Machangara River Basin (Ecuador)

Jerves-Cobo

Everaert

Iñiguez-Vela³

et al. 2017

Water

Self Cite

View full text Add to dashboard Cite

Rivers have been frequently assessed based on the presence of the EphemeropteraPlecoptera-Trichoptera (EPT) taxa in order to determine the water quality status and develop conservation programs. This research evaluates the abiotic preferences of three families of the EPT taxa Baetidae, Leptoceridae and Perlidae in the Machangara River Basin located in the southern Andes of Ecuador. With this objective, using generalized linear models (GLMs), we analyzed the relation between the probability of occurrence of these pollution-sensitive macroinvertebrates families and physicochemical water quality conditions. The explanatory variables of the constructed GLMs differed substantially among the taxa, as did the preference range of the common predictors. In total, eight variables had a substantial influence on the outcomes of the three models. For choosing the best predictors of each studied taxa and for evaluation of the accuracy of its models, the Akaike information criterion (AIC) was used. The results indicated that the GLMs can be applied to predict either the presence or the absence of the invertebrate taxa and moreover, to clarify the relation to the environmental conditions of the stream. In this manner, these modeling tools can help to determine key variables for river restoration and protection management.

show abstract

Section: Analysis Of the Explanatory Variables In Relation To Responscontrasting

confidence: 47%

Section: Analysis Of the Explanatory Variables In Relation To Responsmentioning

confidence: 99%

A Methodology to Model Environmental Preferences of EPT Taxa in the Machangara River Basin (Ecuador)

Jerves-Cobo

Everaert

Iñiguez-Vela³

et al. 2017

Water

Self Cite

View full text Add to dashboard Cite

show abstract

“…El ICR considera 17 indicadores, dentro de los cuales se incluyen un índice de integridad biótica de peces, el índice biótico familias de macroinvertebrados de Hilsenhoff (1987) y un índice de géneros de algas. Otro ejemplo es la integración de componentes hidromorfológicos, fisicoquímicos y biológicos en un modelo predictivo desarrollado por Holguin-Gonzalez et al (2013), con el cual se puede prever la ocurrencia de algunos grupos de invertebrados.…”

Section: íNdices Limnológicos En Ríosunclassified

Algunas Experiencias en El Uso De Índices Limnológicos en Colombia

Agudelo

2016

Acta biol. Colomb.

View full text Add to dashboard Cite

RESUMENEl objetivo central de este trabajo es presentar algunas experiencias realizadas por el Departamento de Biología de la Universidad Nacional de Colombia en la elaboración de índices limnológicos para evaluar el estado ecológico de sistemas acuáticos colombianos. Se presentan siete casos que van desde la construcción de un índice multimétrico para los humedales bogotanos, hasta el desarrollo de un método de biomonitoreo del estado trófico basado en microalgas encapsuladas en alginato. Los índices consideran tanto variables físicas y químicas como características bióticas de los ambientes limnológicos analizados. Las comunidades acuáticas trabajadas fueron el fitoplancton, el perifiton, las plantas acuáticas y los invertebrados acuáticos. Los índices propuestos son: Índice de Condiciones Limnológicas de los humedales de Bogotá -ICOL; Índice de Diatomeas Perifíticas de los humedales de Bogotá -IDPHB; Índice de Integridad Biótica de Macroinvertebrados en ciénagas del Cesar-IIBM; Índice de Estado Limnológico para ciénagas del Canal del Dique -IEL; Índice de Estado Limnológico Fluvial para ríos de la cuenca alta del río Chicamocha-IELf; Índice de Integridad del Hábitat para ríos licenciados -IIH, los cuales permiten establecer escalas de calidad y funcionalidad de los ecosistemas estudiados. Las algas encapsuladas, por su parte, reflejan a través de sus tasas de crecimiento la condición trófica del agua. De esta manera se ponen a disposición de las autoridades ambientales una serie de herramientas técnicas y científicas que permiten tomar decisiones sobre el uso, restauración y conservación de los ambientes acuáticos continentales del país. Palabras clave: bioindicación, estado limnológico, salud ecológica, sistemas lénticos, sistemas lóticos. ABSTRACTThe main objective of this paper is to show some experiences of the Department of Biology of the Universidad Nacional de Colombia in the development of limnological indices to assess the ecological status of aquatic systems in Colombia. Seven cases are presented ranging from the construction of a multimetric index for the urban wetlands of Bogotá, to the development of a method for biomonitoring the water trophic status, based on microalgae encapsulated in alginate. The indices shown consider physical, chemical, and biotic variables in the limnological environments analyzed. Aquatic communities worked were phytoplankton, periphyton, aquatic plants, and aquatic invertebrates. The proposed indices (Limnological Conditions Index of Bogotá wetlands-LICOI; Periphytic Diatoms Index of Bogotá Wetlands-PDIBW; Biotic Integrity Index for Macroinvertebrate of Cesar swamps BIIM; Limnological State Index for the Canal del Dique swamps-LSI; Limnological River State Index for upper basin of River Chicamocha -LRSI; Habitat Integrity Index for licensed rivers-HII) permit to set ranges of quality and functionality of ecosystems studied. Encapsulated algae, meanwhile, reflected through their growth rates trophic status of water. Thus, technical and scientific methodologies are offere...

show abstract

“…These modeling techniques have allowed for the handling of the non-linear behavior of the ecosystem, obtaining models with a high reliability [20][21][22]. In this way, the FC has been associated as one of the explanatory variables describing the presence or absence of some taxa of macroinvertebrates [22][23][24]. Machine learning with different modeling techniques, such as classification trees (CTs) combine reliable classification predictions with transparency, and have been proven to be effective to assess running waters [25,26].…”

Section: Introductionmentioning

confidence: 99%

“…The CTs provide good modeling techniques as they focus on the presence/absence or abundance of macroinvertebrate taxa (family or species) in relation to a specific impact or a disturbance in the streams [11,20,[26][27][28]. Consequently, considering the described correlations between fecal coliform presence and macroinvertebrate diversity [18,[22][23][24], compliance to regulatory standards can be simulated based on the prevailing macroinvertebrate community structure by training classification trees on combined observations of fecal coliforms and macroinvertebrates, thereby acting as a proxy indicator for fecal coliform contamination.…”

Section: Introductionmentioning

confidence: 99%

Model-Based Analysis of the Potential of Macroinvertebrates as Indicators for Microbial Pathogens in Rivers

Jerves-Cobo

Córdova-Vela²,

Iñiguez-Vela³

et al. 2018

Water

Self Cite

View full text Add to dashboard Cite

The quality of water prior to its use for drinking, farming or recreational purposes must comply with several physicochemical and microbiological standards to safeguard society and the environment. In order to satisfy these standards, expensive analyses and highly trained personnel in laboratories are required. Whereas macroinvertebrates have been used as ecological indicators to review the health of aquatic ecosystems. In this research, the relationship between microbial pathogens and macrobenthic invertebrate taxa was examined in the Machangara River located in the southern Andes of Ecuador, in which 33 sites, according to their land use, were chosen to collect physicochemical, microbiological and biological parameters. Decision tree models (DTMs) were used to generate rules that link the presence and abundance of some benthic families to microbial pathogen standards. The aforementioned DTMs provide an indirect, approximate, and quick way of checking the fulfillment of Ecuadorian regulations for water use related to microbial pathogens. The models built and optimized with the WEKA package, were evaluated based on both statistical and ecological criteria to make them as clear and simple as possible. As a result, two different and reliable models were obtained, which could be used as proxy indicators in a preliminary assessment of pollution of microbial pathogens in rivers. The DTMs can be easily applied by staff with minimal training in the identification of the sensitive taxa selected by the models. The presence of selected macroinvertebrate taxa in conjunction with the decision trees can be used as a screening tool to evaluate sites that require additional follow up analyses to confirm whether microbial water quality standards are met.

show abstract

Integrating hydraulic, physicochemical and ecological models to assess the effectiveness of water quality management strategies for the River Cuenca in Ecuador

Abstract: Este documento contiene información de prueba. Contáctese con el administrador del Centro para el acceso al documento originar del registro.

Cited by 24 publications

References 47 publications

A Methodology to Model Environmental Preferences of EPT Taxa in the Machangara River Basin (Ecuador)

A Methodology to Model Environmental Preferences of EPT Taxa in the Machangara River Basin (Ecuador)

Algunas Experiencias en El Uso De Índices Limnológicos en Colombia

Model-Based Analysis of the Potential of Macroinvertebrates as Indicators for Microbial Pathogens in Rivers

Contact Info

Product

Resources

About