<?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>0122-0268</journal-id>
<journal-title><![CDATA[Revista MVZ Córdoba]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.MVZ Cordoba]]></abbrev-journal-title>
<issn>0122-0268</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Córdoba - Facultad de Medicina Veterinaria y Zootecnia.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-02682020000200004</article-id>
<article-id pub-id-type="doi">10.21897/rmvz.1805</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Reporte de presuntas hipnosporas de Perkinsus sp., en Megapitaria squalida del Golfo de California con la técnica de tinción con tioglicolato]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Góngora-Gómez]]></surname>
<given-names><![CDATA[Andrés]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villanueva-Fonseca]]></surname>
<given-names><![CDATA[Lizeth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sandoval-Rivera]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Sepúlveda]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Domínguez-Orozco]]></surname>
<given-names><![CDATA[Ana L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villanueva-Fonseca]]></surname>
<given-names><![CDATA[Brenda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Ulloa]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional, Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional Unidad Sinaloa]]></institution>
<addr-line><![CDATA[Guasave Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Gobierno Municipal de Guasave Departamento de Ecología ]]></institution>
<addr-line><![CDATA[Sinaloa ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de Occidente Unidad Guasave ]]></institution>
<addr-line><![CDATA[Guasave Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2020</year>
</pub-date>
<volume>25</volume>
<numero>2</numero>
<fpage>4</fpage>
<lpage>10</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-02682020000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-02682020000200004&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-02682020000200004&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Objetivo. Detectar la presencia de presuntas hipnosporas del protozoario Perkinsus sp. en una población silvestre de la almeja chocolata mexicana (Megapitaria squalida) del sureste del Golfo de California, usando el medio fluido de tioglicolato de Ray (RFTM).  Materiales y métodos. Cada mes durante un ciclo anual, se capturaron 30 especímenes con una longitud entre 56.17 y 69.04 mm. La prevalencia e intensidad de la infección y los parámetros del agua se registraron mensualmente desde septiembre 2012 a septiembre 2013.  Resultados. Se detectó la presencia de presuntas hipnosporas de Perkinsus sp. en muestras de tejido de la almeja chocolata mexicana usando la prueba RFTM, por la presencia de corpúsculos redondos y oscuros que representan hipnosporas del parásito. Los muestreos mensuales revelaron un rango de prevalencia e intensidad de la infección de 0-43.33% y 1-4 (infección negativa = 0 hipnosporas/preparación, a moderada = 34 hipnosporas/ preparación), respectivamente.  Conclusiones. Perkinsus sp. es reportado por primera vez en una población silvestre de M. squalida en la parte más al sureste del Golfo de California. Los resultados indican que el parásito está disperso intraespecíficamente y, potencialmente, parasitaría un nuevo huésped en la región.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Objective. To detect the presence of presumptive hypnospores of the protozoan Perkinsus sp. in a wild population of the Mexican chocolata clam Megapitaria squalida in the southeastern Gulf of California, using Ray's fluid thioglycollate medium (RFTM).  Material and methods. Thirty specimens with size between 56.17 and 69.04 mm were captured each month, during an annual cycle. Infection prevalence and intensity and water parameters were recorded monthly from September 2012 to September 2013.  Results. Perkinsus sp. was detected in tissue samples from the Mexican chocolate clam using the RFTM test by the presence of dark round corpuscles that represent parasite's hypnospores. Monthly samplings revealed a prevalence of 0-43.33% and an infection intensity ranging from 1 to 4 (no infection = 0 hypnospores/entire preparation, to moderate = 34 hypnospores/entire preparation).  Conclusions. Perkinsus sp. is reported for the first time in a wild population of M. squalida in the southesternmost Gulf of California. The results indicate that this protozoan is dispersed intraspecifically and would now, potentially, parasiting a new host in the region.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Parasitology]]></kwd>
<kwd lng="en"><![CDATA[bivalves]]></kwd>
<kwd lng="en"><![CDATA[protozoa]]></kwd>
<kwd lng="en"><![CDATA[prevalence]]></kwd>
<kwd lng="en"><![CDATA[Sinaloa]]></kwd>
<kwd lng="en"><![CDATA[Mexico (Source: MeSH)]]></kwd>
<kwd lng="es"><![CDATA[Parasitología]]></kwd>
<kwd lng="es"><![CDATA[bivalvos]]></kwd>
<kwd lng="es"><![CDATA[protozoario]]></kwd>
<kwd lng="es"><![CDATA[prevalencia]]></kwd>
<kwd lng="es"><![CDATA[Sinaloa]]></kwd>
<kwd lng="es"><![CDATA[México (Fuente: MeSH)]]></kwd>
</kwd-group>
</article-meta>
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