<?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>S2007-90282024000100023</article-id>
<article-id pub-id-type="doi">10.19136/era.a11n1.3941</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Nuevo registro del género Isonychia (Ephemeroptera: Isonychiidae) en México y datos de parámetros del agua]]></article-title>
<article-title xml:lang="en"><![CDATA[New record of the genus Isonychia (Ephemeroptera: Isonychiidae) in Mexico and water parameters data]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-Ríos]]></surname>
<given-names><![CDATA[Edwin Alán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cardoza-Martínez]]></surname>
<given-names><![CDATA[Gabriel Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alonzo-Rojo]]></surname>
<given-names><![CDATA[Fernando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Valenzuela-García]]></surname>
<given-names><![CDATA[Ana Alejandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Zagoya]]></surname>
<given-names><![CDATA[Rebeca]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Estrada-Arellano]]></surname>
<given-names><![CDATA[Josué Raymundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Juárez del Estado de Durango Facultad de Ciencias Biológicas ]]></institution>
<addr-line><![CDATA[Gómez Palacio Durango]]></addr-line>
<country>México</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional ]]></institution>
<addr-line><![CDATA[Durango Durango]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2024</year>
</pub-date>
<volume>11</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282024000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282024000100023&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282024000100023&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El género Isonychia agrupa efímeras con ninfas de gran tamaño presentes en ecosistemas lóticos. Este género tiene una distribución muy amplia, a pesar de ello, en México los registros son muy escasos y éstas no refieren las características ambientales de los sitios donde fueron encontradas. El objetivo de este trabajo es reportar por primera vez el género Isonychia en el estado de Durango, así como caracterizar algunos parámetros fisicoquímicos del agua asociados a su distribución. Se registraron 19 ninfas de Isonychia, que probablemente corresponden a la especie I. sicca, en siete sitios dentro de la cuenca del río Nazas. Esto amplía el rango de distribución del género Isonychia para México. Los ejemplares se registraron en ambientes con velocidad de corriente moderada y una calidad del agua aceptable en comparación con otros sistemas riparios, en términos de oxígeno disuelto, conductividad eléctrica, sólidos disueltos totales, pH, temperatura y amonio.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The genus Isonychia groups mayflies with large nymphs present in lotic ecosystems. This genus has a very wide distribution, despite of this, in Mexico the records are very scarce and these do not refer to the environmental characteristics of the sites where they were found. The objective of this work is to report for the first time the genus Isonychia in Durango state, as well as to characterize some physicochemical parameters of water associated with its distribution. A total of 19 Isonychia nymphs, which probably correspond to the species I. sicca, were recorded in seven sites within the Nazas River basin. This extends the distribution range of the genus Isonychia for Mexico. The specimens were recorded in environments with moderate current speed and an acceptable water quality compared to other riparian systems, in terms of dissolved oxygen, electrical conductivity, total dissolved solids, pH, temperature and ammonium.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Distribución]]></kwd>
<kwd lng="es"><![CDATA[Durango]]></kwd>
<kwd lng="es"><![CDATA[efímeras]]></kwd>
<kwd lng="es"><![CDATA[factores ambientales]]></kwd>
<kwd lng="es"><![CDATA[río Nazas]]></kwd>
<kwd lng="en"><![CDATA[Distribution]]></kwd>
<kwd lng="en"><![CDATA[Durango]]></kwd>
<kwd lng="en"><![CDATA[mayflies]]></kwd>
<kwd lng="en"><![CDATA[environmental factors]]></kwd>
<kwd lng="en"><![CDATA[Nazas river]]></kwd>
</kwd-group>
</article-meta>
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