<?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>0188-8897</journal-id>
<journal-title><![CDATA[Hidrobiológica]]></journal-title>
<abbrev-journal-title><![CDATA[Hidrobiológica]]></abbrev-journal-title>
<issn>0188-8897</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Metropolitana, División de Ciencias Biológicas y de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-88972018000300277</article-id>
<article-id pub-id-type="doi">10.24275/uam/izt/dcbs/hidro/2018v28n3/tas</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Macrobenthic Fauna of the Meric River (Turkish Thrace): Composition of the community as related to water quality]]></article-title>
<article-title xml:lang="es"><![CDATA[Fauna macrobentónica del Río Meric (Tracia turca): composición de la comunidad en relación a la calidad del agua]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tas-Divrik]]></surname>
<given-names><![CDATA[Menekse]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Kirgiz]]></surname>
<given-names><![CDATA[Timur]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Cumhuriyet University Sarkisla As&#305;k Veysel Vocational School ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Turkey</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Trakya University Faculty of Science Department of Biology]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Turkey</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>28</volume>
<numero>3</numero>
<fpage>277</fpage>
<lpage>285</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-88972018000300277&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-88972018000300277&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-88972018000300277&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Background:  Benthic macroinvertebrates are commonly used as indicators of the biological condition of waterbodies. Both the benthic macroinvertebrates and the physicochemical properties of the water provide important information about the pollution of a water environment.  Goals:  To investigate the relationships between assemblage composition of Oligochaeta (Annelida), Chironomidae (Diptera), and other macroinvertebrates with physical and chemical water variables in the Meric River, Turkey.  Methods:  This study was carried out by taking water and benthic samples at 8 stations at monthly intervals in order to determine what macrobenthic fauna exist in the Meric River and what environmental properties affect their distribution.  Results:  A total of 39 taxa were found and we determined that there is an average of 851 individuals per m2. Also, this study established the first records for Brachiura sowerbyii (Oligochaeta) and Pottashia alternis (Chironomidae) in the Turkish Thrace region. According to Shannon-Wiener index, while it was determined that Meric River has the highest diversity values with H&#8217; = 0.845 at the station 4, the river has the poorest diversity with H&#8217;= 0.477 at the station 2. Also, we examined similarities of distribution of Oligochaeta taxa by station and month using the Bray-Curtis index. Accordingly, while stations 6 and 8 were determined to be the most similar to each other, stations 2 and 5 were the least similar. The relationships between Oligochaeta taxa and physical and chemical parameters of water were evaluated using the Spearman Correlation index. As a result, we found that water temperature, pH, electrical conductivity, hydrogen sulfide, calcium, magnesium, phosphate, chlorine, salinity, dissolved oxygen and biological oxygen have positive correlations with some species of Oligochaeta, while nitrate and nitrite have negative correlations with some species of Oligochaeta.  Conclusions:  We made a number of suggestions for sustainable usage of this river.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Antecedentes:  Los macroinvertebrados bentónicos se usan comúnmente como indicadores de la condición biológica de los cuerpos de agua. Estos organismos al igual que las propiedades fisicoquímicas del agua, proporcionan información importante sobre la contaminación de un ambiente acuático.  Objetivos:  Investigar las relaciones entre la composición del ensamblaje de Oligochaeta (Annelida), Chironomidae (Diptera) y otros macroinvertebrados con las variables físicas y químicas del agua en el río Meric, Turquía.  Métodos:  Se estudiaron muestras de agua y de bentos, tomadas en 8 estaciones en intervalos mensuales para determinar la fauna macrobentónica del río Meric y las propiedades ambientales que afectan su distribución.  Resultados:  Se encontraron un total de 39 taxa, con un promedio de 851 individuos por m2. Además las especies: Brachiura sowerbyii (Oligochaeta) y Pottashia alternis (Chironomidae), constituyen los primeros registros en la región de la Tracia turca. Según el índice de Shannon-Wiener, se determinó que el río Meric tiene los valores más altos de diversidad (H&#8217; = 0.845) en la estación 4, y los más bajos (H&#8217; = 0.477), en la estación 2. Además, se examinaron las similitudes de distribución de los taxones de Oligochaeta para las estaciones y los meses utilizando el índice de Bray-Curtis. Las estaciones 6 y 8 se determinaron como las más similares entre sí, por el contrario las estaciones 2 y 5 como las más diferentes. Las relaciones entre los taxones de Oligochaeta y los parámetros físicos y químicos del agua se evaluaron utilizando el índice de correlación de Spearman. Como resultado, se observó que la temperatura del agua, el pH, la conductividad eléctrica, el sulfuro de hidrógeno, el calcio, el magnesio, el fosfato, el cloro, la salinidad, el oxígeno disuelto y el oxígeno biológico tienen correlaciones positivas con algunas especies de Oligochaeta, mientras que el nitrato y el nitrito tienen correlaciones negativas con los organismos de ese grupo.  Conclusiones:  Se hacen sugerencias para el uso sustentable del río.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Chironomidae]]></kwd>
<kwd lng="en"><![CDATA[fauna]]></kwd>
<kwd lng="en"><![CDATA[macrobenthic]]></kwd>
<kwd lng="en"><![CDATA[Meric River]]></kwd>
<kwd lng="en"><![CDATA[Oligochaeta]]></kwd>
<kwd lng="es"><![CDATA[Chironomidae]]></kwd>
<kwd lng="es"><![CDATA[fauna]]></kwd>
<kwd lng="es"><![CDATA[macrobentónico]]></kwd>
<kwd lng="es"><![CDATA[Oligochaeta]]></kwd>
<kwd lng="es"><![CDATA[río Meric]]></kwd>
</kwd-group>
</article-meta>
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