<?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>0120-548X</journal-id>
<journal-title><![CDATA[Acta Biológica Colombiana]]></journal-title>
<abbrev-journal-title><![CDATA[Acta biol.Colomb.]]></abbrev-journal-title>
<issn>0120-548X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia, Facultad de Ciencias, Departamento de Biología]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-548X2022000200164</article-id>
<article-id pub-id-type="doi">10.15446/abc.v27n2.89084</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[EL LEGADO DEL ARSENICO Y MERCURIO EN EL COMPLEJO CENAGOSO RAMSAR DE AYAPEL, (CÓRDOBA, COLOMBIA): APROXIMACIÓN A LA MACROCUENCA MAGDALENA-CAUCA]]></article-title>
<article-title xml:lang="en"><![CDATA[The legacy of arsenic and mercury in the Ramsar Ayapel wetland complex (Córdoba, Colombia): An approach to the Magdalena-Cauca macro-basin]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[PEDRAZA]]></surname>
<given-names><![CDATA[Mary Luz]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[ESPINOSA-RAMÍREZ]]></surname>
<given-names><![CDATA[Adriana Janneth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia  ]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia  ]]></institution>
<addr-line><![CDATA[Tunja ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2022</year>
</pub-date>
<volume>27</volume>
<numero>2</numero>
<fpage>164</fpage>
<lpage>176</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-548X2022000200164&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-548X2022000200164&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-548X2022000200164&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Colombia, país localizado al norte de Suramérica, afronta diferentes conflictos socioambientales y es uno de los más contaminados por mercurio en el mundo, situación que amenaza la riqueza natural y la biodiversidad del neotrópico, reconocida por sus altos niveles de endemismos. El complejo de humedales de Ayapel (Sitio Ramsar) ubicado al norte del país, reporta el desembarco del 23 % de la producción pesquera de la macrocuenca Magdalena-Cauca y a su vez sufre alta presión por minería de aluvión. Este trabajo evaluó la presencia de dos disruptores endocrinos, mercurio (Hg) y arsénico (As), en peces de consumo humano, agua y sedimentos, colectados en las ciénagas central de Ayapel, Escobillas y Paticos. En el sedimento y en el agua se registraron concentraciones de arsénico no reportadas previamente, y al ser un cancerígeno, es un hallazgo relevante ya que también puede estar presente en los cultivos de arroz, lo que aumenta el riesgo toxicológico para los pobladores de la región. Adicionalmente, el 96 % de los peces presentaron simultáneamente Hg y As con diferencias estadísticamente significativas entre las especies. El blanquillo (Sorubim cuspicaudus) fue el más contaminado por ambos polutantes y el bocachico (Prochilodus magdalenae) registró el nivel más alto de Hg en los últimos 15 años para la zona. Los niveles de Hg en la ictiofauna de la macrocuenca (1993-2020) alertan sobre los impactos no monitoreados en las redes tróficas y la urgencia de acciones intersectoriales para proteger la biodiversidad y la salud humana.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Located in the northern extreme of South America, Colombia is one of the most mercury contaminated countries in the world, a situation that threatens its natural wealth and highly endemic neotropical biodiversity and adds to its multiple environmental and social conflicts. Internationally designated as a Ramsar site, the Ayapel wetland complex registers the catching of 23 % of the fish production of the Magdalena-Cauca macro-basin, while at the same time is under intense alluvial mining pressure. Exposure to two endocrine disruptors [mercury (Hg) and arsenic (As)] was traced in fish for human consumption, water and sediments collected in the central marshes of Ayapel, Escobillas and Paticos. Previously unreported concentrations of arsenic were found in sediments and water. This is quite a relevant finding, since it is a carcinogen and because local rice crops are supplied by the water of the marsh system, which may increase toxicological risk for the people of the region. In addition, 96 % of the fish registered statistically significant contents of both Hg and As. The fish blanquillo (Sorubim cuspicaudus) was found to contain the highest levels of both pollutants, while the bocachico (Prochilodus magdalenae) registered the highest level of Hg in the last 15 years for the studied area. Framed in mercury variation in the macro-basin's ichthyofauna (1993-2020), a warning is issued about unmonitored impacts on food webs and the urgency of intersectoral actions to protect biodiversity and human health.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Bioacumulación]]></kwd>
<kwd lng="es"><![CDATA[ecotoxicología]]></kwd>
<kwd lng="es"><![CDATA[ictiofauna]]></kwd>
<kwd lng="es"><![CDATA[minería]]></kwd>
<kwd lng="es"><![CDATA[salud ambiental]]></kwd>
<kwd lng="en"><![CDATA[Bioaccumulation]]></kwd>
<kwd lng="en"><![CDATA[ecotoxicology]]></kwd>
<kwd lng="en"><![CDATA[environmental health]]></kwd>
<kwd lng="en"><![CDATA[ichthyofauna]]></kwd>
<kwd lng="en"><![CDATA[mining]]></kwd>
</kwd-group>
</article-meta>
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