<?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>0122-7483</journal-id>
<journal-title><![CDATA[Universitas Scientiarum]]></journal-title>
<abbrev-journal-title><![CDATA[Univ. Sci.]]></abbrev-journal-title>
<issn>0122-7483</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Ciencias de la Pontificia Universidad Javeriana de Bogotá.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-74832018000100109</article-id>
<article-id pub-id-type="doi">10.11144/javeriana.sc23-1.aopc</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Application of physico-chemical indexes and BMWP / Col. to establish the impact of urbanization on Río Frío (Bucaramanga, Colombia)]]></article-title>
<article-title xml:lang="es"><![CDATA[Aplicación de índices físico-químicos y BMWP/ Col. para establecer el impacto del urbanismo en Río Frío (Bucaramanga, Colombia)]]></article-title>
<article-title xml:lang="pt"><![CDATA[Aplicação de índices físico-químicos e BMWP/ Col. Para estabelecer o impacto do urbanismo em Rio Frio (Bucaramanga, Colômbia)]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Restrepo-Manrique]]></surname>
<given-names><![CDATA[Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salcedo-Reyes]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Santo Tomas University Faculty of Environmental Chemistry ]]></institution>
<addr-line><![CDATA[Floridablanca, Santander ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>23</volume>
<numero>1</numero>
<fpage>109</fpage>
<lpage>128</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-74832018000100109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-74832018000100109&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-74832018000100109&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In this study, samples from four different sites were collected from Río Frío, a stream crossing the city of Bucaramanga (Colombia). The course evaluated started in the suburban area and finished in the vicinity where Río Frío becomes the tributary of Río de Oro. Invertebrates were identified belonging to different phyla: Annelida, Mollusca, and Arthropoda, corresponding to five classes, 14 orders, and 51 families. Biological monitoring working party (BMWP)/Col., ICO, and ICA-CETESB (Environmental Agency of the State of São Paulo) indexes were evaluated to determine water quality and environmental impact caused by urban growth. Statistical analysis of collected data revealed progressive basin deterioration from the first site of collection to the last site. At the beginning of the evaluated course, good water quality was observed. However, after flowing through the urban area, very poor quality indexes were detected. Based on the Wenger etal. guidelines two main problems were identified: weak enforcement of environmental laws, in addition to poorly legislated environmental urban planning.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este estudio se recolectaron muestras de cuatro sitios diferentes del Río Frío, un arroyo que cruza la ciudad de Bucaramanga (Colombia). El curso evaluado inició en el área suburbana y culminó en las cercanías en donde el Río Frío se convierte en el afluente del Río de Oro. Se identificaron invertebrados pertenecientes a diferentes especies: Annelida, Mollusca y Artrópodos, correspondientes a cinco clases, 14 órdenes y 51 familias. De igual forma, se realizó un monitoreo biológico de los índices de los grupos de investigación (BMWP)/ Col., ICO, e ICA-CETESB (Agencia ambiental de São Paulo) con el fin de determinar la calidad del agua y el impacto ambiental causados por el crecimiento urbano. El análisis estadístico de la información obtenida reveló la deterioración progresiva de la cuenca del rio desde el primer sitio de la toma de la muestra hasta el final. Al inicio del curso evaluado, se observó una buena calidad del agua. Sin embargo, después de atravesar el área urbana, se detectaron índices de muy mala calidad. Basándose en Wenger et al., se identificaron dos problemas principales: un cumplimiento deficiente de las leyes ambientales, y un planeamiento urbanístico ambiental mal legislado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Neste estudo se coletaram amostras de quatro locais diferentes do Rio Frío, um canal que cruza a cidade de Bucaramanga (Colômbia). O curso avaliado iniciou na área suburbana e culminou nas proximidades onde o Rio Frio se converte em afluente do Rio de Oro. Se identificaram invertebrados pertencentes a diferentes espécies: Annelida, Mollusca y Artrópodos, correspondentes a cinco classes, 14 ordens e 51 famílias. Adicionalmente, se realizou uma monitoração biológica dos índices dos grupos de investigação (BMWP)/Col., ICO, e ICA-CETESB (Agencia ambiental de São Paulo) com a finalidade de determinar a qualidade da água e o impacto ambiental causado pelo crescimento urbano. A análise estatística da informação obtida revelou a deterioração progressiva da bacia hidrográfica desde o primeiro local de coleta até o local final de amostragem. Na área inicial do curso elevado, se observou uma boa qualidade da água. Entretanto, depois de cruzar a área urbana, se detectaram índices de qualidade muito baixos. De acordo com as guias de Wenger e colaboradores, se identificaram dois problemas principais: um cumprimento deficiente das leis ambientais e um planejamento urbanístico ambiental mal legislado.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[macroinvertebrates]]></kwd>
<kwd lng="en"><![CDATA[ICA-CETESB]]></kwd>
<kwd lng="en"><![CDATA[ICO]]></kwd>
<kwd lng="en"><![CDATA[pollution]]></kwd>
<kwd lng="en"><![CDATA[urban stream]]></kwd>
<kwd lng="es"><![CDATA[macroinvertebrados]]></kwd>
<kwd lng="es"><![CDATA[ICA-CETESB]]></kwd>
<kwd lng="es"><![CDATA[ICO]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
<kwd lng="es"><![CDATA[arroyo urbano]]></kwd>
<kwd lng="pt"><![CDATA[Macroinvertebrados]]></kwd>
<kwd lng="pt"><![CDATA[ICA-CETESB]]></kwd>
<kwd lng="pt"><![CDATA[ICO]]></kwd>
<kwd lng="pt"><![CDATA[contaminação]]></kwd>
<kwd lng="pt"><![CDATA[canal urbano]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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