<?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>1870-3453</journal-id>
<journal-title><![CDATA[Revista mexicana de biodiversidad]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Biodiv.]]></abbrev-journal-title>
<issn>1870-3453</issn>
<publisher>
<publisher-name><![CDATA[Instituto de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-34532021000100318</article-id>
<article-id pub-id-type="doi">10.22201/ib.20078706e.2021.92.3925</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[La cochinilla Creaseriella anops (Crustacea: Isopoda: Cirolanidae) de las cuevas anquihalinas de Yucatán, México ¿Existen patrones de variación en la talla?]]></article-title>
<article-title xml:lang="en"><![CDATA[The pillbug Creaseriella anops (Crustacea: Isopoda: Cirolanidae) from the anchialine caves of Yucatán, Mexico. Are there size variation patterns?]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán]]></surname>
<given-names><![CDATA[Brenda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Biología Colección Nacional de Crustáceos]]></institution>
<addr-line><![CDATA[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>92</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-34532021000100318&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-34532021000100318&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-34532021000100318&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se presenta un estudio sobre los patrones de variación en talla del isópodo Creaseriella anops, una de las especies más abundante en las cuevas anquihalinas de la península de Yucatán (PY). A través del análisis de muestras de 22 cuevas anquihalinas distribuidas en la porción norte de la PY, describimos la composición de tallas, proporción sexual, variación geográfica entre las poblaciones de los estados de Yucatán y Quintana Roo, y distribución batimétrica. Los resultados muestran que tanto machos y hembras, como mancas, juveniles y hembras maduras, presentan intervalos de talla bien definidos. Se detectó una diferencia significativa entre las tallas que alcanzan los isópodos en Yucatán vs. Quintana Roo; la proporción de sexos considerando todas las localidades fue de 1M:1H. La distribución batimétrica muestra un patrón en donde los isópodos más grandes se encuentran en las partes someras, pero el promedio de talla no varía con la profundidad. Finalmente, no se encontró una relación entre la talla promedio y la distancia a la costa, pero sí se logró identificar diferencias significativas en la longitud total de los organismos pertenecientes a las cuencas que se han propuesto dentro del acuífero.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A study on the patterns of size variation of the isopod Creaseriella anops, one of the most abundant species in the anchialine caves of the Yucatán Peninsula (PY), is presented. We describe, through the analysis of samples from 22 anchialine caves distributed in the northern portion of the PY, the size composition, sex ratio, geographic variation between the Yucatán and Quintana Roo populations, and the bathymetric distribution. The results show that males, females, mancas, juveniles and mature females, all have well defined size ranges. A significant difference was found between isopod size from Yucatán and Quintana Roo; sex ratio considering all localities was 1M:1F. The bathymetric distribution shows a pattern in which the biggest isopods are in the shallow areas, but average size does not vary with depth. Finally, there was no relationship between average size and distance from the coast, but it was possible to identify significant differences in the total length of the organisms belonging to the different basins that have been proposed within the aquifer.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Isópodo]]></kwd>
<kwd lng="es"><![CDATA[Estigobítico]]></kwd>
<kwd lng="es"><![CDATA[Cuevas inundadas]]></kwd>
<kwd lng="es"><![CDATA[Península de Yucatán]]></kwd>
<kwd lng="es"><![CDATA[Carroñero]]></kwd>
<kwd lng="en"><![CDATA[Isopod]]></kwd>
<kwd lng="en"><![CDATA[Stygobitic]]></kwd>
<kwd lng="en"><![CDATA[Flooded caves]]></kwd>
<kwd lng="en"><![CDATA[Yucatán Peninsula]]></kwd>
<kwd lng="en"><![CDATA[Scavenger]]></kwd>
</kwd-group>
</article-meta>
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