<?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>0370-3908</journal-id>
<journal-title><![CDATA[Revista de la Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. acad. colomb. cienc. exact. fis. nat.]]></abbrev-journal-title>
<issn>0370-3908</issn>
<publisher>
<publisher-name><![CDATA[Academia Colombiana de Ciencias Exactas, Físicas y Naturales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0370-39082018000300212</article-id>
<article-id pub-id-type="doi">10.18257/raccefyn.655</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Utilización de macroinvertebrados acuáticos como herramienta para determinar la calidad del agua en la quebrada Santo Tomás, municipio de Pensilvania, Colombia]]></article-title>
<article-title xml:lang="en"><![CDATA[Utilization of aquatic macroinvertebrates as a tool to determine water quality in Santo Tomás ravine, Pensilvania municipality (Colombia)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Murillo-Montoya]]></surname>
<given-names><![CDATA[Sergio Adrián]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mendoza-Mora]]></surname>
<given-names><![CDATA[Alexander]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Restrepo-Bastidas]]></surname>
<given-names><![CDATA[Edwin Santiago]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez]]></surname>
<given-names><![CDATA[Miguel Ángel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Servicio Nacional de Aprendizaje (SENA) Sistema de investigación, desarrollo tecnológico e innovación (SENNOVA), Centro Pecuario y Agroempresarial Grupo de Investigación en Recursos Naturales, Biotecnología y Bioprospección (RENABBIO)]]></institution>
<addr-line><![CDATA[La Dorada ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Servicio Nacional de Aprendizaje (SENA) Semillero de Investigación IDEAS ]]></institution>
<addr-line><![CDATA[Puerto Boyacá ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Servicio Nacional de Aprendizaje, SENA Estudiante-Aprendiz ]]></institution>
<addr-line><![CDATA[La Dorada ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2018</year>
</pub-date>
<volume>42</volume>
<numero>164</numero>
<fpage>212</fpage>
<lpage>220</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0370-39082018000300212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0370-39082018000300212&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0370-39082018000300212&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen A pesar de la riqueza hídrica del municipio de Pensilvania, Caldas, y del creciente uso de los macroinvertebrados acuáticos como herramienta sencilla, eficiente y de bajo costo para determinar la calidad del agua en diversos ecosistemas, no se conocen estudios de este tipo en el municipio. El objetivo de esta investigación fue evaluar la diversidad de los macroinvertebrados acuáticos y la calidad del agua de la quebrada Santo Tomás en el municipio de Pensilvania. Se recolectaron muestras de macroinvertebrados entre junio y agosto de 2015 en diferentes hábitats (hojarasca sumergida, sedimento fino y rocas), empleando una red Surber. Se registraron 2.175 individuos pertenecientes a 97 grupos taxonómicos; los órdenes más abundantes fueron Trichoptera y Ephemeroptera (54 %). No se encontraron diferencias significativas (p&gt;0,05) en términos de diversidad entre los sitios evaluados y según los índices BMWP/Col y EPT, las aguas son muy limpias, aunque el índice ASPT indicó la presencia de aguas ligera y moderadamente contaminadas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Despite the water wealth of the municipality of Pensilvania, Caldas, and the growing use of aquatic macroinvertebrates as a simple, efficient and low-cost tool to determine water quality in various ecosystems, no studies of this type are known in the municipality. The objective of this research was to evaluate the diversity of aquatic macroinvertebrates and the water quality of the Santo Tomás stream in the municipality of Pennsylvania. Samples of macroinvertebrates were collected between June and August 2015 in different habitats (submerged leaf litter, fine sediment, and rocks), using a Surber net. There were 2,175 individuals belonging to 97 taxonomic groups; the most abundant orders were Trichoptera and Ephemeroptera (54%). No significant differences were found (p&gt; 0.05) in terms of diversity between the evaluated sites and, according to the BMWP / Col and EPT indices, the waters are very clean, although the ASPT index indicated the presence of lightly to moderately polluted waters.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Diversidad biológica]]></kwd>
<kwd lng="es"><![CDATA[Bioindicador]]></kwd>
<kwd lng="es"><![CDATA[Fuente hídrica]]></kwd>
<kwd lng="es"><![CDATA[Acueductos rurales]]></kwd>
<kwd lng="es"><![CDATA[Monitoreo]]></kwd>
<kwd lng="es"><![CDATA[Ecosistemas acuáticos]]></kwd>
<kwd lng="en"><![CDATA[Biological diversity]]></kwd>
<kwd lng="en"><![CDATA[Bioindicadors]]></kwd>
<kwd lng="en"><![CDATA[Water sources]]></kwd>
<kwd lng="en"><![CDATA[Rural aqueducts]]></kwd>
<kwd lng="en"><![CDATA[Monitoring]]></kwd>
<kwd lng="en"><![CDATA[Aquatic ecosystems]]></kwd>
</kwd-group>
</article-meta>
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