<?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>2007-9028</journal-id>
<journal-title><![CDATA[Ecosistemas y recursos agropecuarios]]></journal-title>
<abbrev-journal-title><![CDATA[Ecosistemas y recur. agropecuarios]]></abbrev-journal-title>
<issn>2007-9028</issn>
<publisher>
<publisher-name><![CDATA[Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-90282021000100014</article-id>
<article-id pub-id-type="doi">10.19136/era.a8n1.2735</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Ictioplancton en el estuario del río Pánuco, Tamaulipas-Veracruz]]></article-title>
<article-title xml:lang="en"><![CDATA[Ichthyoplankton in the Pánuco river estuary, Tamaulipas-Veracruz]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez-Ramírez]]></surname>
<given-names><![CDATA[Marina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Berrios-Zamudio]]></surname>
<given-names><![CDATA[Ariana Lizbet]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ocaña-Luna]]></surname>
<given-names><![CDATA[Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas Departamento de Zoología]]></institution>
<addr-line><![CDATA[Alcaldía Miguel Hidalgo Ciudad de México]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>8</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282021000100014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282021000100014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282021000100014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN: Se determinó la variación en la estructura del ensamblaje de larvas de peces a lo largo de un gradiente salino en el estuario del río Pánuco, para lo cual se realizaron muestreos en: enero, marzo, mayo, julio, septiembre y noviembre en 2017 en nueve sitios, con una red estándar con abertura de malla de 500 µm. Se recolectaron 1 165 huevos de peces y 526 larvas de peces de 18 especies, tres de ellas de agua dulce. La mayor riqueza de especies se observó en el estuario medio y laguna de Pueblo Viejo. Los valores mayores de diversidad y equidad se presentaron en noviembre (2.7 y 0.9, respectivamente). La dominancia fue mayor en julio (0.4) debido a la abundancia de Anchoa mitchilli. El ensamblaje ictioplanctónico se caracterizó por un mayor número de especies dominantes marinas y estuarinas, un bajo número de dulceacuícolas y disminución de la riqueza río arriba.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT: To determine the structure of the ichthyoplankton assemblage along a saline gradient in the Pánuco river estuary, sampling was performed in: January, March, May, July, September, and November in 2017 at nine sites, with a standard network with a mesh opening of 500 µm. 1 165 eggs and 526 fish larvae were collected from 18 species, three of them from freshwater. The highest specific richness was observed in the middle estuary and lagoon of Pueblo Viejo. The highest values of diversity and evenness was found in November (2.7 and 0.9, respectively). The dominance was greatest in July (0.4) due to the abundance of Anchoa mitchilli. The ichthyoplankton assemblage was characterized by a greater number of dominant marine and estuarine species, a low number of freshwater species and a decrease in species richness upstream.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Huevos de peces]]></kwd>
<kwd lng="es"><![CDATA[inmigración]]></kwd>
<kwd lng="es"><![CDATA[larvas de peces]]></kwd>
<kwd lng="es"><![CDATA[lagunas costeras]]></kwd>
<kwd lng="es"><![CDATA[zooplancton]]></kwd>
<kwd lng="en"><![CDATA[Fish eggs]]></kwd>
<kwd lng="en"><![CDATA[immigration]]></kwd>
<kwd lng="en"><![CDATA[fish larvae]]></kwd>
<kwd lng="en"><![CDATA[coastal lagoons]]></kwd>
<kwd lng="en"><![CDATA[zooplankton]]></kwd>
</kwd-group>
</article-meta>
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