<?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>S2007-33642015000200489</article-id>
<article-id pub-id-type="doi">10.12933/therya-15-279</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Occasional presence of a California sea lion ( Zalophus californianus ) at Isla Roca Partida, Revillagigedo Archipelago, México]]></article-title>
<article-title xml:lang="es"><![CDATA[Presencia ocasional de lobo marino de California (Zalophus californianus) en Isla Roca Partida, Archipiélago de Revillagigedo, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hoyos-Padilla]]></surname>
<given-names><![CDATA[Edgar Mauricio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallo-Reynoso]]></surname>
<given-names><![CDATA[Juan Pablo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Pelagios-Kakunjá A. C.  ]]></institution>
<addr-line><![CDATA[La Paz Baja California Sur]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigación en Alimentación y Desarrollo A. C. Unidad Guaymas ]]></institution>
<addr-line><![CDATA[Guaymas Sonora]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2015</year>
</pub-date>
<volume>6</volume>
<numero>2</numero>
<fpage>489</fpage>
<lpage>494</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33642015000200489&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33642015000200489&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33642015000200489&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  INTRODUCTION: California sea lions (Zalophus californianus) are a wide ranging species in the Northeastern coast of the United States and Mexico; the former limits of the species southern distribution were the Islas Marias Archipelago. Since the 1980's several individuals have been sighted outside of their range, as far north as Alaska in the U. S. A., and as far south as Chiapas in Mexico. Individuals of the species move between islands in their reproductive colonies; there are multiple records of individuals of several age classes outside of their southern limit, including a neonate in Manzanillo, Colima.  RESULTS: We report the first record of a subadult male in the waters of Roca Partida (18° 59' 41" N, -112° 04' 07" W), Revillagigedo Archipelago on November 29, 2014. The individual stayed for three weeks in the area.  DISCUSSION AND CONCLUSIONS: The observation took place in El Niño type conditions, in which Pacific surface water temperature increased from 1 to 1.5 °C above normal. This event may have caused this individual sea lion to move far away from the continental coast in search for prey. This sea lion showed a good body condition. Roca Partida, is more than 650 km southwest of a former colony of sea lions on Islas Marías, and 600 km from the nearest reproductive colony at Isla Santa Margarita, Baja California Sur, this record shows the far away and occasional ranging of California sea lions outside their coastal - continental distribution.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  INTRODUCCIÓN: El lobo marino de California (Zalophus californianus) es una especie con un amplio rango de distribución en la costa nororiental de los Estados Unidos y México, siendo el límite histórico de la especie hasta el Archipiélago de las Islas Marías. A partir de los 1980s se han observado varios individuos fuera de este rango, tan al norte como Alaska y tan al sur como Chiapas en México. Los individuos de esta especie se desplazan entre las islas en sus colonias reproductivas, con movimientos muy lejanos; hay muchos registros de individuos de diferentes clases de edad fuera de su límite sur, incluyendo un neonato en Manzanillo, Colima.  RESULTADOS: Reportamos el primer registro de un macho subadulto de lobo marino de California en las aguas de Isla Roca Partida (18° 59' 41"N, -112° 04' 07" W) en el Archipiélago de Revillagigedo, el 29 de Noviembre de 2014. El individuo permaneció por tres semanas en el área.  DISCUSIÓN Y CONCLUSIONES: Esta observación sucedió en condiciones de El Niño, durante el cual la superficie del mar incrementa su temperatura de 1 a 1.5 °C arriba de lo normal. Probablemente este evento causó que el individuo se alejara de la costa continental en búsqueda de alimento. Este lobo marino aparentaba una buena condición corporal. Isla Roca Partida se encuentra a más de 650 km al suroeste de la colonia histórica de las Islas Marías, y a 600 km de la colonia reproductiva más cercana en Isla Santa Margarita, Baja California Sur. Este registro muestra los largos y ocasionales desplazamientos fuera de su distribución costera - continental.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[California sea lion]]></kwd>
<kwd lng="en"><![CDATA[distribution]]></kwd>
<kwd lng="en"><![CDATA[Isla Roca Partida]]></kwd>
<kwd lng="en"><![CDATA[Revillagigedo Archipelago]]></kwd>
<kwd lng="en"><![CDATA[Zalophus californianus]]></kwd>
<kwd lng="es"><![CDATA[Archipiélago de Revillagigedo]]></kwd>
<kwd lng="es"><![CDATA[distribución]]></kwd>
<kwd lng="es"><![CDATA[Isla Roca Partida]]></kwd>
<kwd lng="es"><![CDATA[lobo marino de California]]></kwd>
<kwd lng="es"><![CDATA[Zalophus californianus]]></kwd>
</kwd-group>
</article-meta>
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