<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532019000100624</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2019.90.2750</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Monogéneos de Astyanax aeneus (Characidae) y Oreochromis niloticus (Cichlidae) en la cuenca del río Ixtapan, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Monogeneans of Astyanax aeneus (Characidae) and Oreochromis niloticus (Cichlidae) from Ixtapan River basin, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jiménez-Sánchez]]></surname>
<given-names><![CDATA[Alfredo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Nava]]></surname>
<given-names><![CDATA[Petra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Romero]]></surname>
<given-names><![CDATA[Felipe de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Nava]]></surname>
<given-names><![CDATA[Belem]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de México Facultad de Ciencias ]]></institution>
<addr-line><![CDATA[Toluca Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>90</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532019000100624&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532019000100624&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532019000100624&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este estudio se registraron los monogéneos en las branquias de 136 peces de 2 especies (Astyanax aeneus y Oreochromis niloticus) en 7 localidades de la cuenca del río Ixtapan, México. Se determinaron 9 especies que constituyen nuevos registros para el Estado de México y Guerrero. El carácido A. aeneus albergó 5 especies de monogéneos (Anacanthocotyle anacanthocotyle, Characithecium costaricensis, Diaphorocleidus kabatai, Palombitrema heteroancistrium y Urocleidoides strombicirrus), mientras que la tilapia del Nilo estuvo parasitada por 4 especies (Cichlidogyrus sclerosus, Cichlidogyrus thurstonae, Cichlidogyrus tilapiae y Scutogyrus longicornis). En particular, los monogéneos C. thurstonae y S. longicornis se reportan por primera vez en México en una población invasora silvestre de O. niloticus. Los monogéneos con mayor distribución en el río Ixtapan fueron: D. kabatai y C. costaricensis en A. aeneus, y C. tilapiae en O. niloticus. La prevalencia e intensidad promedio de las 9 especies de monogéneos fueron en general más bajas que las reportadas en otras cuencas hidrológicas de México.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In this study, the gill monogeneans of 136 fish belonging to 2 species (Astyanax aeneus and Oreochromis niloticus) in 7 localities from Ixtapan River basin, Mexico were registered. Nine species of monogeneans were determinated, which represent new records for Estado de México and Guerrero. The characid A. aeneus had 5 monogenean species (Anacanthocotyle anacanthocotyle, Characithecium costaricensis, Diaphorocleidus kabatai, Palombitrema heteroancistrium and Urocleidoides strombicirrus) and the Nile tilapia O. niloticus harbored 4 species (Cichlidogyrus sclerosus, Cichlidogyrus thurstonae, Cichlidogyrus tilapiae and Scutogyrus longicornis). The monogeneans C. thurstonae and S. longicornis are reported by the first time in México in a wild invasive population of O. niloticus. The monogeneans with more distribution along the Ixtapan River were: D. kabatai and C. costaricensis in A. aeneus, and C. tilapiae in O. niloticus. The prevalence and mean intensity of all monogenean species were in general lower in Ixtapan River than those registered in other hidrological basins of Mexico.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Characidae]]></kwd>
<kwd lng="es"><![CDATA[Cichlidae]]></kwd>
<kwd lng="es"><![CDATA[Cichlidogyrus]]></kwd>
<kwd lng="es"><![CDATA[Characithecium]]></kwd>
<kwd lng="es"><![CDATA[Urocleidoides]]></kwd>
<kwd lng="es"><![CDATA[Balsas]]></kwd>
<kwd lng="en"><![CDATA[Characidae]]></kwd>
<kwd lng="en"><![CDATA[Cichlidae]]></kwd>
<kwd lng="en"><![CDATA[Cichlidogyrus]]></kwd>
<kwd lng="en"><![CDATA[Characithecium]]></kwd>
<kwd lng="en"><![CDATA[Urocleidoides]]></kwd>
<kwd lng="en"><![CDATA[Balsas]]></kwd>
</kwd-group>
</article-meta>
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