<?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>0185-3880</journal-id>
<journal-title><![CDATA[Ciencias marinas]]></journal-title>
<abbrev-journal-title><![CDATA[Cienc. mar]]></abbrev-journal-title>
<issn>0185-3880</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0185-38802021000200127</article-id>
<article-id pub-id-type="doi">10.7773/cm.v47i2.3132</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Diet of the rasptail skate, Rostroraja velezi (Rajiformes: Rajidae), off Piura, Peru]]></article-title>
<article-title xml:lang="es"><![CDATA[Dieta de la raya bruja Rostroraja velezi (Rajiformes: Rajidae) frente a la región Piura, Perú]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Molina-Salgado]]></surname>
<given-names><![CDATA[Pamela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alfaro-Shigueto]]></surname>
<given-names><![CDATA[Joanna]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Pestana]]></surname>
<given-names><![CDATA[Adriana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Científica del Sur Facultad de Ciencias Veterinarias y Biológicas ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Misión Raya  ]]></institution>
<addr-line><![CDATA[San Borja Lima]]></addr-line>
<country>Peru</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,ProDelphinus  ]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Peru</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2021</year>
</pub-date>
<volume>47</volume>
<numero>2</numero>
<fpage>127</fpage>
<lpage>138</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0185-38802021000200127&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0185-38802021000200127&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0185-38802021000200127&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Batoids are among the least studied group of vertebrates and one of the most vulnerable to fishing. The rasptail skate, Rostroraja velezi, is a bycatch species in northern Peru for which there are no studies on its diet. This research aims to document the diet of R. velezi on the northern Peruvian coast and to determine if there are sex-based differences in the diet. A total of 74 R. velezi stomachs were collected, 59 of which had stomach contents. The cumulative prey curve showed reliability in the number of samples collected. According to the prey-specific index of relative importance, diet was dominated by Acanthephyra sp. (31%), other unidentified Caridea (15%), and unidentified teleosts (17%). A low significant difference in diet between sexes was found (R = 0.21, P &lt; 0.01). The trophic position of R. velezi was 3.9 ± 0.7. This species displays bentopelagic feeding behavior and it is a secondary predator in northern Peru.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Los batoideos son uno de los grupos de vertebrados menos estudiados y uno de los más vulnerables a la pesca. La raya bruja Rostroraja velezi es una especie capturada incidentalmente en el norte del Perú para la cual no existen estudios sobre su dieta. El objetivo de esta investigación es documentar la dieta de R. velezi en la costa norte del Perú y determinar si existe una diferencia en la dieta según el sexo. Se recolectaron un total de 74 estómagos de R. velezi, de los cuales 59 presentaron contenido estomacal. La curva acumulativa de presas mostró confiabilidad en el número de muestras recolectadas. Según el porcentaje de importancia relativa por presa específica, la dieta estuvo dominada por Acanthephyra sp. (31%), otros carídeos no identificados (15%) y teleósteos no identificados (17%). Se determinó una baja diferencia significativa en la dieta entre sexos (R = 0.21, P &lt; 0.01). La posición trófica de R. velezi fue de 3.9 ± 0.7. Esta especie presenta un comportamiento alimenticio bentopelágico y es considerada un depredador secundario en el norte del Perú.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[trophic ecology]]></kwd>
<kwd lng="en"><![CDATA[feeding habits]]></kwd>
<kwd lng="en"><![CDATA[mesopredator]]></kwd>
<kwd lng="en"><![CDATA[gillnets]]></kwd>
<kwd lng="en"><![CDATA[Elasmobranchii]]></kwd>
<kwd lng="es"><![CDATA[ecología trófica]]></kwd>
<kwd lng="es"><![CDATA[hábitos alimenticios]]></kwd>
<kwd lng="es"><![CDATA[mesodepredador]]></kwd>
<kwd lng="es"><![CDATA[red agallera]]></kwd>
<kwd lng="es"><![CDATA[Elasmobranchii]]></kwd>
</kwd-group>
</article-meta>
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