<?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>0188-8897</journal-id>
<journal-title><![CDATA[Hidrobiológica]]></journal-title>
<abbrev-journal-title><![CDATA[Hidrobiológica]]></abbrev-journal-title>
<issn>0188-8897</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Biológicas y de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-88972017000100039</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Helminth parasites in feces of Antillean manatees Trichechus manatus manatus (Sirenia:Trichechidae) in Mexico: Gulf of Mexico and Caribbean]]></article-title>
<article-title xml:lang="es"><![CDATA[Helmintos parásitos en heces de manatí Antillano Trichechus manatus manatus (Sirenia: Tricheachidae) en México: Golfo de México y Caribe]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Olascoaga]]></surname>
<given-names><![CDATA[Arturo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olivera-Gómez]]></surname>
<given-names><![CDATA[León David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Vela]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez Autónoma de Tabasco División Académica de Ciencias Biológicas ]]></institution>
<addr-line><![CDATA[Villahermosa Tabasco]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de la Frontera Sur  ]]></institution>
<addr-line><![CDATA[Chetumal Quintana Roo]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2017</year>
</pub-date>
<volume>27</volume>
<numero>1</numero>
<fpage>39</fpage>
<lpage>44</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-88972017000100039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-88972017000100039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-88972017000100039&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  Low helminth diversity has been reported in West Indian manatees (Trichechus manatus). Most studies were conducted on the Florida sub species T. m. latirostris in subtropical environments, therefore limited information is available for the tropical Antillean subspecies T. m. manatus. In Mexico, there are apparently two population units of T. m. manatus.  Goals:  The objective of this study was to survey the presence and prevalence of helminth parasite eggs in the feces of T. m. manatus from the Gulf of Mexico (GM) and Caribbean coasts (CAR) of Mexico.  Methods:  We used 31 fecal samples collected from GM (n = 22) and CAR (n = 9), from 2005 to 2008. Feces were fixed and preserved in 70% ethanol until analysis. Both floatation and sedimentation techniques were used. Helminth eggs were identified using specialized literature and graphic catalogs.  Results:  We found parasite eggs in 61.2% of feces; all samples from CAR had helminths. We documented eggs from five helminths: three digenetic (Chiorchis fabaceus, C. groschafti, and Pulmonicola cochleotre ma) and two Nematoda (Heterocheilus tunicatus and Ascarididae gen. sp.). Two species were found exclusively from GM, one exclusively from CAR, and two species were common to both locales.  Conclusions:  Diversity was consistently low in the samples. Four of the species found are common to Florida and Caribbean islands and one is a new registry for this host. Future examination of manatee carcasses could confirm the presence of adult helminth species for new registries for this host.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes:  En el manatí del Caribe (Trichechus manatus) se reporta baja diversidad de helmintos y la mayoría de los estudios se han realizado en la subespecie de Florida (T. m. latirostris ) en ambientes subtropicales, por lo que existe poca información para la subespecie Antillana (T. m. manatus). En México, al parecer existen dos unidades poblacionales de manatí Antillano.  Objetivos:  El objetivo de este estudio fue determinar la presencia y prevalencia de huevos de helmintos parásitos en heces de T. m. manatus del Golfo de México (GM) y la costa del Caribe Mexicano (CAR).  Métodos:  Se utiliza ron muestras de heces de 31 manatíes, tanto de GM (n = 22) como del CAR (n = 9), de 2005 a 2008. Las heces se fijaron y preservaron en alcohol etílico al 70% hasta su análisis. Las técnicas utilizadas fueron de flotación y sedimentación. Los huevos de helmintos se identificaron apoyándose en literatura especializada y catálogos gráficos.  Resultados:  En el 61.2% de las heces analizadas se encontraron parásitos, todas las muestras de CAR contenían parásitos. Se registraron huevos de cinco especies de helmintos: tres digéneos (Chiorchis fabaceus, C. groschafti y Pulmonicola cochleotrema ) y dos nemátodos (Heterocheilus tunicatus y Ascarididae gen. sp.). Dos especies fueron exclusivas para GM, una para CAR y dos fueron comunes para ambas áreas.  Conclusiones . La diversidad fue consistentemente baja en las muestras. Cuatro especies fueron comunes con Florida y las islas del Caribe y una es nuevo registro para este hospedero. Futuros estudios parasitológicos en cadáveres frescos confirmarán la existencia de helmintos adultos para los nuevos registros en este hospedero.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Helminth eggs]]></kwd>
<kwd lng="en"><![CDATA[parasites]]></kwd>
<kwd lng="en"><![CDATA[sirenians]]></kwd>
<kwd lng="en"><![CDATA[tropical México]]></kwd>
<kwd lng="es"><![CDATA[Huevos de helmintos]]></kwd>
<kwd lng="es"><![CDATA[parásitos]]></kwd>
<kwd lng="es"><![CDATA[sirenios]]></kwd>
<kwd lng="es"><![CDATA[trópico de México]]></kwd>
</kwd-group>
</article-meta>
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