<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992020000100215</article-id>
<article-id pub-id-type="doi">10.20937/rica.2020.36.53432</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[BACTERIAL MICROBIOTA FROM WILD FRESHWATER FISH UTILIZED FOR SUBSISTENCE IN WESTERN MEXICO]]></article-title>
<article-title xml:lang="es"><![CDATA[MICROBIOTA BACTERIANA DE PECES SILVESTRES DE AGUA DULCE UTILIZADOS PARA CONSUMO EN EL OESTE DE MÉXICO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Díaz]]></surname>
<given-names><![CDATA[Rosa Leonor]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mercado-Silva]]></surname>
<given-names><![CDATA[Norman]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reynaga-Delgado]]></surname>
<given-names><![CDATA[Eire]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez-Rivera]]></surname>
<given-names><![CDATA[Luis Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de la Costa Sur Departamento de Ecología y Recursos Naturales]]></institution>
<addr-line><![CDATA[Autlán de Navarro Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de Morelos Centro de Investigación en Biodiversidad y Conservación ]]></institution>
<addr-line><![CDATA[Cuernavaca Morelos]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Guadalajara Centro Universitario de Ciencias Exactas e Ingeniería ]]></institution>
<addr-line><![CDATA[Guadalajara Jalisco]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>36</volume>
<numero>1</numero>
<fpage>215</fpage>
<lpage>222</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992020000100215&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992020000100215&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992020000100215&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Microbiological analyses of freshwater fish utilized in subsistence fisheries are relatively scarce. These fisheries are widespread throughout Latin America, and support numerous communities in rural, impoverished areas. We present the results of genetically-based microbiological analyses of river water samples and fish tissue samples obtained from specimens (n = 128) captured in the wild from three sites in the Ayuquila river, west central Mexico. The system is affected by numerous human activities. We identify 11 bacterial taxa of which Pseudomonas stutzeri, Shigella sonnei, Escherichia coli and Bacillus subtilis were isolated from the most fish. Citrobacter freundii and E. coli were present in water samples from all sites. Average taxa richness was similar among rainy and dry seasons. Enterobacteriaceae dominate the bacterial microbiota of water and fishes of the Ayuquila river, suggesting there is significant influence from anthropic activities in the basin. Our findings provide a baseline upon which to improve our understanding of the microbiology of the Ayuquila river and similar systems in west central Mexico, especially related to risks for biota and human populations dependent on rivers for sustenance.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Los análisis microbiológicos en peces de agua dulce tomados directamente de hábitats naturales y que son utilizados en pesquerías de subsistencia son relativamente escasos. Estas pesquerías están muy extendidas en toda América Latina y son importantes para numerosas comunidades en áreas rurales empobrecidas. Presentamos los resultados de análisis microbiológicos y moleculares realizados en muestras de agua de río y muestras de tejido obtenidas de peces (n = 128) capturados en el medio silvestre de tres sitios en el río Ayuquila, en el centro oeste de México. El río es afectado por numerosas actividades humanas. Identificamos 11 taxa bacterianos de los cuales Pseudomonas stutzeri, Shigella sonnei, Escherichia coli y Bacillus subtilis se aislaron de la mayoría de los peces. Citrobacter freundii y E. coli estuvieron presentes en muestras de agua de todos los sitios. La riqueza promedio de los taxa fue similar entre temporadas de muestreo. Las enterobacteriáceas dominan la microbiota bacteriana del agua y los peces del río Ayuquila, lo que sugiere que existe una influencia significativa de las actividades antrópicas en la cuenca. Nuestros resultados proporcionan la línea base sobre la cual mejorar nuestra comprensión de la microbiología del río Ayuquila, especialmente relacionada con los riesgos para la biota y las poblaciones humanas que dependen y subsisten del río.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Escherichia coli]]></kwd>
<kwd lng="en"><![CDATA[urban pollution]]></kwd>
<kwd lng="en"><![CDATA[Manantlán]]></kwd>
<kwd lng="en"><![CDATA[subsistence fishery]]></kwd>
<kwd lng="es"><![CDATA[Escherichia coli]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
<kwd lng="es"><![CDATA[Manantlán]]></kwd>
<kwd lng="es"><![CDATA[pesquería de subsistencia]]></kwd>
</kwd-group>
</article-meta>
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