<?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>0120-548X</journal-id>
<journal-title><![CDATA[Acta Biológica Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta biol.Colomb.]]></abbrev-journal-title>
<issn>0120-548X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-548X2023000200239</article-id>
<article-id pub-id-type="doi">10.15446/abc.v28n2.103952</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[EVALUACIÓN DEL ESTADO ECOLÓGICO DEL RÍO ÁNIMAS MEDIANTE ÍNDICES MULTIMÉTRICOS EN CERINZA, BOYACÁ]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the ecological status of the Ánimas River through multimetric indexes in Cerinza, Boyacá]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[GONZÁLEZ-TUTA]]></surname>
<given-names><![CDATA[Ángela Liceth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[GIL-PADILLA]]></surname>
<given-names><![CDATA[Luz Nidia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[PINILLA-AGUDEL0]]></surname>
<given-names><![CDATA[Gabriel A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia Facultad Ciencias Básicas ]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional de Colombia Departamento de Biología ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2023</year>
</pub-date>
<volume>28</volume>
<numero>2</numero>
<fpage>239</fpage>
<lpage>250</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-548X2023000200239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-548X2023000200239&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-548X2023000200239&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El estado o calidad ecológica es un concepto integral que refleja el grado de deterioro de los ambientes acuáticos. Para medirlo se han diseñado protocolos que evidencian los cambios en la estructura y funcionamiento de las comunidades bióticas en respuesta a las presiones antropogénicas. Se evaluó el estado ecológico del río Ánimas a lo largo de su eje longitudinal, mediante los índices IMEERA, IMARBO y BMWP-Col. Se realizaron muestreos en épocas seca y lluviosa en cuatro tramos del eje longitudinal. Se tomaron datos fisicoquímicos del agua y datos hidromorfológicos. Se colectaron macroinvertebrados mediante una red Surber. Los iones disueltos en el agua fueron los factores más relevantes del conjunto de variables fisicoquímicas. El índice hidromorfológico indicó que los puntos a menor elevación en la cuenca presentaron una puntuación deficiente. En cuanto a la abundancia y composición de macroinvertebrados, se reflejó una mayor abundancia en época seca y una mayor riqueza en época de lluvias. Los índices IMEERA y BMWP-Col tuvieron un comportamiento similar con valores menores en la época seca, mientras que en la fase lluviosa alcanzaron los registros más altos, revelando diferencias claras en el estado ecológico de los puntos de muestreo. El índice IMARBO presentó un comportamiento distinto, según el cual los puntos de menor elevación (uno y dos) reflejaron una condición de mayor deterioro en comparación con los puntos más altos (tres y cuatro). Para los tres índices, este último punto presentó la mejor condición de calidad. Este estudio contribuye al conocimiento del comportamiento de ríos andinos frente a índices de calidad ecológica.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Ecological or quality status is an integral concept that reflects the degree of deterioration of aquatic environments. To measure it, protocols have been designed that demonstrate changes in the structure and functioning of biotic communities in response to anthropogenic pressures. The ecological status of the Ánimas River was evaluated along its longitudinal axis, using the IMEERA, IMARBO, and BMWP-Col indices. The samplings were carried out in dry and rainy seasons, in four sections of the longitudinal axis. Physicochemical data of the water and hydromorphological data were taken. Macroinvertebrates were collected using a Surber net. The ions dissolved in the water were the most relevant factors of the set of physicochemical variables. The hydromorphological index indicated that the points at lower elevations in the basin presented a deficient score. Regarding the abundance and composition of macroinvertebrates, a greater abundance was reflected in the dry season and a greater richness in the rainy season. The IMEERA and BMWP-Col indices had a similar behavior with lower values in the dry season, while in the rainy phase they reached the highest records, revealing clear differences in the ecological status of the studied points. The IMARBO index presented a different behavior according to which the lowest elevation points (one and two) reflected a condition of greater deterioration compared to the highest points (three and four). In this last point, the three indices showed the best quality condition. This study contributes to the knowledge of the behavior of Andean rivers in relation to ecological quality indices.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[bioindicación]]></kwd>
<kwd lng="es"><![CDATA[hidromorfología]]></kwd>
<kwd lng="es"><![CDATA[macroinvertebrados]]></kwd>
<kwd lng="es"><![CDATA[ríos andinos]]></kwd>
<kwd lng="en"><![CDATA[Andean rivers]]></kwd>
<kwd lng="en"><![CDATA[bioindication]]></kwd>
<kwd lng="en"><![CDATA[hydromorphology]]></kwd>
<kwd lng="en"><![CDATA[macroinvertebrates]]></kwd>
</kwd-group>
</article-meta>
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