<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0188-8897</journal-id>
<journal-title><![CDATA[Hidrobiológica]]></journal-title>
<abbrev-journal-title><![CDATA[Hidrobiológica]]></abbrev-journal-title>
<issn>0188-8897</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Biológicas y de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-88972022000100033</article-id>
<article-id pub-id-type="doi">10.24275/uam/izt/dcbs/hidro/2022v32n1/gudino</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de la calidad del agua en un río subtropical y tributarios utilizando índices fisicoquímicos y macroinvertebrados acuáticos]]></article-title>
<article-title xml:lang="en"><![CDATA[Water quality assessment in a subtropical river and tributaries combining physicochemical and aquatic macroinvertebrates]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gudiño-Sosa]]></surname>
<given-names><![CDATA[Luis Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escalera-Gallardo]]></surname>
<given-names><![CDATA[Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cruz-Cárdenas]]></surname>
<given-names><![CDATA[Gustavo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moncayo-Estrada]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Silva-García]]></surname>
<given-names><![CDATA[José Teodoro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Magallón]]></surname>
<given-names><![CDATA[Rebeca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Damián-Arroyo]]></surname>
<given-names><![CDATA[Miriam]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chávez-Tinoco]]></surname>
<given-names><![CDATA[Marco Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional ]]></institution>
<addr-line><![CDATA[ Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Interdisciplinario de Ciencias Marinas ]]></institution>
<addr-line><![CDATA[La Paz B.C.S.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de La Ciénega del Estado de Michoacán de Ocampo  ]]></institution>
<addr-line><![CDATA[Sahuayo Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>32</volume>
<numero>1</numero>
<fpage>33</fpage>
<lpage>50</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-88972022000100033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-88972022000100033&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-88972022000100033&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Antecedentes: La evaluación de la integridad de un río involucra el análisis de diferentes aspectos de su entorno y del propio ecosistema.  Objetivos: En el presente estudio se caracterizó la calidad abiótica y biótica del río Cupatitzio utilizando múltiples indicadores.  Métodos: Se realizó un análisis de la cobertura de los diferentes usos del suelo en la cuenca, se registraron 16 variables fisicoquímicos del agua, se identificaron y cuantificaron los invertebrados acuáticos en 20 sitios. Se calcularon el índice de calidad del agua (NSF-WQI) y los índices biológicos (Shannon-Wiener, Pielou e Indicator Species Analysis) y se aplicaron métodos estadísticos multivariados.  Resultados: La mayoría de los sitios presentan una importante cobertura de asentamientos humanos y agricultura con el menor valor para la vegetación natural. En consecuencia, el inicio del río presentó una modificación en su cauce lo que redujo el valor de los indicadores biológicos. La calidad del agua es mayormente media, relacionada a la presencia de materia orgánica con altos valores de Demanda Bioquímica de Oxígeno (máximo de 22.82 mg/L) y nutrientes (máximos de NO3 de 12.39 mg/L y NH4 de 7.31 mg/L). Las familias dominantes fueron Chironomidae, Lumbriculidae, Gammaridae y Baetidae. Se detectó una diferencia significativa tanto espacial como temporal en la abundancia de las familias (A=0.061, P=0.0007 y A=0.247, P=0.000008, respectivamente). Se identificaron 6 de las 77 familias como indicadores significativos.  Conclusiones: Solo en estiaje se presentó más concordancia entre la calidad ambiental y los macroinvertebrados indicadores. Se presenta un protocolo de análisis para su implementación en otros ecosistemas acuáticos y se ve la necesidad de incorporar otros índices de indicadores biológicos (p. ej., BMWP) calibrados y validados para mejorar la interpretación.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Background: The evaluation of the integrity of a river involves the analysis of different aspects of its environment and the ecosystem itself.  Goal. In the present study, the abiotic and biotic quality of the Cupatitzio river was characterized using multiple indicators.  Methods: An analysis of the coverage of the different land uses in the basin was carried out, 16 physicochemical variables of the water were measured, and aquatic invertebrates were identified and quantified in 20 monitoring sites. Water quality index (NSF-WQI) and biological indices (Shannon-Wiener, Pielou, and Indicator Species Analysis) were calculated, and multivariate statistical methods were applied.  Results: Most of the sites present an important coverage of human settlements and agriculture, and the lowest value for natural vegetation. Consequently, the beginning of the river presented a modification in its channel which reduced the value of biological indicators. Overall water quality is medium for the river, related to the presence of organic matter with high values of Biochemical Oxygen Demand (maximum 22.82 mg/L) and nutrients (maximum NO3 of 12.39 mg/L and NH4 of 7.31 mg/L). The dominant families were Chironomidae, Lumbriculidae, Gammaridae, and Baetidae. A significant spatial and temporal difference in family abundance was detected (A=0.061, P=0.0007, and A=0.247, P=0.000008, respectively). Six of the 77 families were identified as significant indicators.  Conclusions: Only at dry season there was more concordance between environmental quality and aquatic organisms&#8217; indicators. A protocol of the analyses is presented for implementation in other aquatic ecosystems and it is recommended the necessity to calibrate and validate biological indicator indices (e. g., BMWP) to improve interpretation.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[estadísticos multivariados]]></kwd>
<kwd lng="es"><![CDATA[familias]]></kwd>
<kwd lng="es"><![CDATA[índices biológicos]]></kwd>
<kwd lng="es"><![CDATA[NSF-WQI]]></kwd>
<kwd lng="es"><![CDATA[usos de suelo]]></kwd>
<kwd lng="es"><![CDATA[río Cupatitzio]]></kwd>
<kwd lng="en"><![CDATA[biological indices]]></kwd>
<kwd lng="en"><![CDATA[families]]></kwd>
<kwd lng="en"><![CDATA[land uses]]></kwd>
<kwd lng="en"><![CDATA[multivariate statistics]]></kwd>
<kwd lng="en"><![CDATA[NSF-WQI]]></kwd>
<kwd lng="en"><![CDATA[Cupatitzio River]]></kwd>
</kwd-group>
</article-meta>
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