<?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>2007-3364</journal-id>
<journal-title><![CDATA[Therya]]></journal-title>
<abbrev-journal-title><![CDATA[Therya]]></abbrev-journal-title>
<issn>2007-3364</issn>
<publisher>
<publisher-name><![CDATA[Asociación Mexicana de Mastozoología A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-33642017000200179</article-id>
<article-id pub-id-type="doi">10.12933/therya-17-451</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Biological observations and first stranding record of Mesoplodon peruvianus from the central Pacific coast of Oaxaca, Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Grajales]]></surname>
<given-names><![CDATA[Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Buenrostro Silva]]></surname>
<given-names><![CDATA[Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Rafael]]></surname>
<given-names><![CDATA[Eunice]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meraz]]></surname>
<given-names><![CDATA[Juan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Mar  ]]></institution>
<addr-line><![CDATA[Puerto Escondido Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad del Mar  ]]></institution>
<addr-line><![CDATA[Puerto Escondido Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad del Mar  ]]></institution>
<addr-line><![CDATA[San Pedro Pochutla Oaxaca]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>8</volume>
<numero>2</numero>
<fpage>179</fpage>
<lpage>184</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33642017000200179&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33642017000200179&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33642017000200179&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: The knowledge of Mesoplodon peruvianus species about its distribution and ecology is limited, because the range of the species is unknown. Mainly due to their inconspicuous behaviour. A survey was conducted from November 2014 to January 2015 along a near 80 km long transect in the central coast of Oaxaca. Additionally, based on an stranded individual at Zicatela beach, we measured it and performed a necropsy to report the probable cause of stranding. Two individuals of M. peruvianus species were observed on December 5, 2014 at about 9.3 km from the coast at 12:45 local time. The identification was clearly positive because of the black and white large individual, with an estimated size of 4 m. This is the first record of M. peruvianus in the area. On March second 2016, a carcass of a male of M. peruvianus was found stranded at Zicatela beach; was classified as scale 2 stranded individual (freshly dead). Our main pathological findings were related with the respiratory and the digestive systems. The thoracic cavity arose out of air suggesting a pneumothorax; lungs were collapsed and to the touch showed a consistency of atelectasis. In total, 18 marine mammal species have been recorded for the state of Oaxaca, this study adds a new record, confirming the presence of M. peruvianus and its distribution in the region. The collapsed lungs of the stranded individual, probably resulted from an apnea state, were related with dysbarism. In Mexico no exist the practice of necropsies in wild marine mammals, therefore, our work contributes to gather relevant information on the health of marine mammals and the threats they face.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El conocimiento acerca de la distribución y ecología de Mesoplodon peruvianus es limitada debido a que su comportamiento enigmático limita el conocimiento acerca de su ámbito hogareño. Se realizaron muestreos en transectos lineales paralelos a la costa de Oaxaca de noviembre de 2014 a enero de 2015 con el fin de obtener registros de mamíferos marinos. Adicionalmente, con base en un ejemplar varado en la playa Zicatela en 2016, realizamos su medición y necropsia para indagar las posibles causas del varamiento. Dos individuos de M. peruvianus fueron avistados el 5 de diciembre de 2014 a 9.3 km de la costa alrededor de las 12:45 horas del día. La identificación se realizó por la típica coloración y se le estimó una longitud de 4 m. Estos avistamientos son el primer registro de M. peruvianus en la zona, contribuyendo al conocimiento de la especie. El 2 de marzo de 2016, se encontró el cadáver de un ejemplar macho de M. peruvianus varado en la playa Zicatela. Se le clasificó en la escala 2 (recién muerto). Nuestros principales hallazgos patológicos se relacionaron con el sistema respiratorio y el digestivo. La cavidad toracica presentó evidencia de aire sugiriendo un pneumotorax y los pulmones estuvieron colapsados y al tacto presentaron una consistencia elástica atribuida a una posible atelectasia. En total, 18 especies de mamíferos marinos han sido registrados para el estado de Oaxaca y nuestro trabajo adiciona un nuevo registro con distribución en esta region y confirma la presencia de M. peruvianus. Respecto al ejemplar varado, los pulmones colapsados encontrados en el cadaver, probablemente sean resultado de una condición de apnea, relacionada con disbarismo. En México, no existe la práctica de las necropsias en animales de vida silvestre, por tanto, nuestro trabajo contribuye a reunir información acerca del conocimiento de la salud de los mamíferos marinos y sus amenazas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Cetaceans]]></kwd>
<kwd lng="en"><![CDATA[necropsy]]></kwd>
<kwd lng="en"><![CDATA[sightings]]></kwd>
<kwd lng="en"><![CDATA[Zicatela]]></kwd>
<kwd lng="en"><![CDATA[Ziphiidae]]></kwd>
</kwd-group>
</article-meta>
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