<?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>0122-9761</journal-id>
<journal-title><![CDATA[Boletín de Investigaciones Marinas y Costeras - INVEMAR]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Invest. Mar. Cost.]]></abbrev-journal-title>
<issn>0122-9761</issn>
<publisher>
<publisher-name><![CDATA[INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS "JOSE BENITO VIVES DE ANDRÉIS" (INVEMAR)    INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS -JOSE BENITO VIVES DE ANDRÉIS- (INVEMAR)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0122-97612021000100163</article-id>
<article-id pub-id-type="doi">10.25268/bimc.invemar.2021.50.1.1019</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Hermaphroditism of bivalves Anadara tuberculosa and Anadara similis Sowerby 1883 (Arcidae) in Colombian Pacific mangroves]]></article-title>
<article-title xml:lang="es"><![CDATA[Hermafroditismo en los bivalvos Anadara tuberculosa y Anadara similis Sowerby 1883 (Arcidae) en los manglares del Pacífico colombiano]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lucero Rincon]]></surname>
<given-names><![CDATA[Carlos H.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cantera Kintz]]></surname>
<given-names><![CDATA[Jaime R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gil-Agudelo]]></surname>
<given-names><![CDATA[Diego L.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Valle Facultad de Ciencias Naturales y Exactas Departamento de Biología]]></institution>
<addr-line><![CDATA[Cali Colombia]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad del Valle Facultad de Ciencias Naturales y Exactas Departamento de Biología]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Texas A&amp;M University at Galveston Research and Graduate Studies Office ]]></institution>
<addr-line><![CDATA[Galveston Texas]]></addr-line>
<country>USA</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>50</volume>
<numero>1</numero>
<fpage>163</fpage>
<lpage>170</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0122-97612021000100163&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0122-97612021000100163&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0122-97612021000100163&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The hermaphrodite condition of the cockles Anadara tuberculosa and Anadara similis, gonochoric species living in mangroves of the Pacific coast of Colombia, are described in this paper. The gonads of 290 individuals of A. tuberculosa and 336 individuals of A. similis collected in five localities of the Colombian Pacific coast were analyzed using histological methods. Our results exposed that 3.1 % of A. tuberculosa and 3.0 % of A. similis analyzed showed signs of both ovules and spermatozoids, as well as simultaneous sexual maturation. Based on this frequency of occurrence of hermaphrodite individuals and the fact that hermaphrodite organisms were present in most of the sampling sites, we conclude that hermaphroditism is a normal rather than casual condition of these two species. We suggest that future studies in the hermaphroditism of these organisms center on the determination of factors potentially affecting this condition.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN En este artículo se describe la condición hermafrodita de la piangua Anadara tuberculosa y Anadara similis, especies gonocóricas que viven en los manglares de la costa del Pacífico de Colombia. Las gónadas de 290 individuos de A. tuberculosa y 336 individuos de A. similis recolectados en cinco localidades de la costa del Pacífico colombiano fueron analizadas utilizando métodos histológicos. Nuestros resultados mostraron que 3,1 % de los individuos de A. tuberculosa y 3,0 % de A. similis analizados presentaron signos de óvulos y espermatozoides simultáneamente, así como maduración sexual simultánea. Con base en la frecuencia de aparición de individuos hermafroditas y el hecho que estos estuvieron presentes en casi todos los lugares de muestreo, concluimos que el hermafroditismo es una condición normal y no casual en estas dos especies. Sugerimos que futuros estudios dirigidos a comprender el hermafroditismo en estas especies se centren en la determinación de potenciales factores que determinen esta condición.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Anadara tuberculosa]]></kwd>
<kwd lng="en"><![CDATA[Anadara similis]]></kwd>
<kwd lng="en"><![CDATA[Bivalves]]></kwd>
<kwd lng="en"><![CDATA[Hermaphroditism]]></kwd>
<kwd lng="en"><![CDATA[Colombian Pacific.]]></kwd>
<kwd lng="es"><![CDATA[Anadara tuberculosa]]></kwd>
<kwd lng="es"><![CDATA[Anadara similis]]></kwd>
<kwd lng="es"><![CDATA[Bivalvos]]></kwd>
<kwd lng="es"><![CDATA[Hermafroditismo]]></kwd>
<kwd lng="es"><![CDATA[Pacífico colombiano.]]></kwd>
</kwd-group>
</article-meta>
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