<?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>0379-3982</journal-id>
<journal-title><![CDATA[Revista Tecnología en Marcha]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnología en Marcha]]></abbrev-journal-title>
<issn>0379-3982</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0379-39822022000300117</article-id>
<article-id pub-id-type="doi">10.18845/tm.v35i2.5662</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Comunidades de macroinvertebrados bentónicos como bioindicador de calidad de agua en un sector del rio Chotano, Perú]]></article-title>
<article-title xml:lang="en"><![CDATA[Benthic macroinvertebrates community as quality bioindicator of water in a sector of the Chotano river, Perú]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Purihuamán-Leonardo]]></surname>
<given-names><![CDATA[Celso Nazario]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Bustamante]]></surname>
<given-names><![CDATA[Eberth Frank]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Cesar Vallejo Escuela de Ingeniería Ambiental ]]></institution>
<addr-line><![CDATA[Chiclayo ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Dirección Sub Regional de Salud Chota ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Perú</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2022</year>
</pub-date>
<volume>35</volume>
<numero>3</numero>
<fpage>117</fpage>
<lpage>127</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822022000300117&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822022000300117&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822022000300117&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se establecieron dos estaciones en un sector del rio Chotano, con el objetivo de evaluar la calidad del agua, empleando macroinvertebrados bentónicos como bioindicadores, para lo cual se utilizaron índices biológicos: IBMWP, ETP %, diversidad, riqueza, equidad, dominancia, la densidad y grupos tróficos. La recolección de los macroinvertebrados se realizó empleando la red tipo Surber, en dos períodos (seco y lluvioso). En la estación 1 se colectaron en promedio 710 ind/m2 distribuidos en 23 taxones de los órdenes díptera, efemeróptera y tricóptera y en la estación 2 se colectaron 16790 ind/m2 , con 6 taxones de los órdenes haplotaxida y díptera, siendo las especies indicadores de polución orgánica, Chironomus sp, Tubifex sp y Psychoda sp, presentes mayormente en la estación 2. Los índices promedios más altos en la estación 1 a comparación de la estación 2 fueron, IBMWP con 60 puntos indicador de calidad de agua dudosa, moderadamente contaminada y 11 puntos, indicador de calidad muy crítica fuertemente contaminada, la diversidad de Shannon - Wiener 1,33 y 0,30 indicador de aguas con poca diversidad, la equidad de Pielou 0,50 muestran poblaciones más estables y 0,20 menos estables; los índices más bajos en la estación 1 comparando con la estación 2 fueron, dominancia de Simpson 0,37 indicador de poca dominancia y mayor diversidad y 0,9 indicador de mayor dominancia, menor diversidad y mayor polución orgánica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract 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.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Contaminación orgánica]]></kwd>
<kwd lng="es"><![CDATA[macroinvertebrados bentónicos]]></kwd>
<kwd lng="es"><![CDATA[calidad del agua]]></kwd>
<kwd lng="es"><![CDATA[biodiversidad]]></kwd>
<kwd lng="en"><![CDATA[Organic pollution]]></kwd>
<kwd lng="en"><![CDATA[benthic macroinvertebrates]]></kwd>
<kwd lng="en"><![CDATA[water quality]]></kwd>
<kwd lng="en"><![CDATA[biodiversity]]></kwd>
</kwd-group>
</article-meta>
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