<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992018000200215</article-id>
<article-id pub-id-type="doi">10.20937/rica.2018.34.02.03</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[BIOMONITOREO DE METALES PESADOS EN PLUMAS DE AVES ACUÁTICAS RESIDENTES DEL LAGO DE CHAPALA, MÉXICO]]></article-title>
<article-title xml:lang="en"><![CDATA[BIOMONITORING OF HEAVY METALS IN FEATHERS OF RESIDENT AQUATIC BIRDS OF LAKE CHAPALA, MEXICO]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[Deisy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez Bernal]]></surname>
<given-names><![CDATA[Dioselina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[Miguel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Buelna-Osben]]></surname>
<given-names><![CDATA[Héctor René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruelas-Insunza]]></surname>
<given-names><![CDATA[Jorge Ricardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Centro Interdisciplinario de Investigación para el Desarrollo Integral Regional ]]></institution>
<addr-line><![CDATA[Jiquilpan Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Texas A&amp;M University Department of Wildlife and Fisheries Sciences ]]></institution>
<addr-line><![CDATA[College Station TX]]></addr-line>
<country>USA</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto Tecnológico de Mazatlán Sección Ambiental ]]></institution>
<addr-line><![CDATA[Mazatlán Sinaloa]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>34</volume>
<numero>2</numero>
<fpage>215</fpage>
<lpage>224</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992018000200215&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992018000200215&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992018000200215&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El lago de Chapala es considerado importante por los servicios económicos, recreativos y ecológicos que ofrece. Es abastecido principalmente por el río Lerma, en el cual se vierten los desechos industriales de los estados de México, Querétaro y Guanajuato, así como los desechos urbanos y agropecuarios de los estados de Michoacán y Jalisco. Estos desechos pueden ser nocivos para los organismos residentes en el lago de Chapala, ya que algunos compuestos químicos tienen la capacidad de acumularse a través de la red trófica y causar daños a dichas poblaciones. En este trabajo se determinó la contaminación por metales pesados mediante la cuantificación de Ag, As, Cd, Cr, Hg, Pb, Sr y Ti en plumas de tres especies locales de aves acuáticas (Ardea alba, Egretta thula y Nycticorax nycticorax), así como en el sedimento y el agua del lago de Chapala. El análisis de la concentración de metales en plumas se realizó mediante espectrometría con fuente de plasma de acoplamiento inductivo. Ardea alba presentó la mayor concentración promedio de Pb (43.65 µg/g) y Cr (52.47 µg/g) en el raquis de las plumas. Eestas concentraciones fueron estadísticamente significativas respecto a las encontradas en E. thula y N. nycticorax (p &#8804; 0.05). Los valores obtenidos del factor de acumulación biota-sedimento indican acumulación de Ag, As, Cd, Cr, Cu, Hg y Pb en las aves del lago de Chapala. Las plumas de aves acuáticas residentes en dicho lago demostraron ser una herramienta no letal y útil para el biomonitoreo de la contaminación por metales pesados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Lake Chapala is considered important because of the economic, recreational, and ecological services that it offers. The main water source of the lake is the Lerma river, which receives industrial waste discharges from the states of Mexico, Queretaro, and Guanajuato, as well as municipal and agricultural waste discharges from the states of Michoacan and Jalisco. Contaminants present in such waste discharges can accumulate through the food web and affect other species in the Chapala ecosystem. We estimated heavy metal pollution in the lake by measuring concentrations of Ag, As, Cd, Cr, Hg, Pb, Sr and Ti in water and sediments, and in feathers from three resident aquatic birds (Ardea alba, Egretta thula, Nycticorax nycticorax). The analysis of heavy metals in feathers was performed using inductively-coupled mass spectrometry. A. alba had significantly greater concentrations of Pb (43.65 µg/g) and Cr (52.47 µg/g) in feathers (rachis) than E. thula and N. nycticorax (p &#8804; 0.05). The biota-sediment bioacccumulation factors suggest accumulation of Ag, As, Cd, Cr, Cu, Hg and Pb in birds from Lake Chapala. Feathers from resident aquatic bird species in Lake Chapala can be used as a non-lethal procedure useful for monitoring heavy metal contamination.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ardea alba]]></kwd>
<kwd lng="es"><![CDATA[contaminación]]></kwd>
<kwd lng="es"><![CDATA[humedal]]></kwd>
<kwd lng="es"><![CDATA[Egretta thula]]></kwd>
<kwd lng="es"><![CDATA[Nycticorax nycticorax]]></kwd>
<kwd lng="es"><![CDATA[sitio RAMSAR]]></kwd>
<kwd lng="en"><![CDATA[Ardea alba]]></kwd>
<kwd lng="en"><![CDATA[pollution]]></kwd>
<kwd lng="en"><![CDATA[wetland]]></kwd>
<kwd lng="en"><![CDATA[Egretta thula]]></kwd>
<kwd lng="en"><![CDATA[Nycticorax nycticorax]]></kwd>
<kwd lng="en"><![CDATA[RAMSAR site]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abbasi]]></surname>
<given-names><![CDATA[N.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaspers]]></surname>
<given-names><![CDATA[V.L.B.]]></given-names>
</name>
<name>
<surname><![CDATA[Chaudhry]]></surname>
<given-names><![CDATA[M.J.I.]]></given-names>
</name>
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Malik]]></surname>
<given-names><![CDATA[R.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of taxa, trophic level, and location on bioaccumulation of toxic metals in bird&#8217;s feathers: A preliminary biomonitoring study using multiple bird species from Pakistan]]></article-title>
<source><![CDATA[Chemosphere]]></source>
<year>2015</year>
<volume>120</volume>
<page-range>527-37</page-range></nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Abdullah]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fasola]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Muhammad]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Malik]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Bostan]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Bokhari]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Eqani]]></surname>
<given-names><![CDATA[S.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Avian feathers as a non-destructive bio-monitoring tool of trace metals signatures: A case study from severely contaminated areas]]></article-title>
<source><![CDATA[Chemosphere]]></source>
<year>2015</year>
<volume>119</volume>
<page-range>553-61</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Aggarwal]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Gaur]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Gauba]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Neurotoxic and genotoxic effects of methylmercury]]></article-title>
<source><![CDATA[Environ. Dev. Sustain.]]></source>
<year>2014</year>
<volume>16</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>71-8</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Beek]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Böhling]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bruckmann]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Franke]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Jöhncke]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Studinger]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The assessment of bioaccumulation]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Beek]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Bioaccumulation-New aspects and developments]]></source>
<year>2000</year>
<page-range>235-76</page-range><publisher-loc><![CDATA[Berlín, Alemania ]]></publisher-loc>
<publisher-name><![CDATA[Springer Berlin Heidelberg, Springer Science and Business Media]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Brito]]></surname>
<given-names><![CDATA[E.M.]]></given-names>
</name>
<name>
<surname><![CDATA[de la Cruz Barrón]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Caretta]]></surname>
<given-names><![CDATA[C.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Goñi-Urriza]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Andrade]]></surname>
<given-names><![CDATA[L.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Cuevas-Rodríguez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Guyoneaud]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Impact of hydrocarbons, PCBs and heavy metals on bacterial communities in Lerma River, Salamanca, Mexico: Investigation of hydrocarbon degradation potential]]></article-title>
<source><![CDATA[Sci. Total Environ.]]></source>
<year>2015</year>
<volume>521</volume>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burger]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Gochfeld]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Marine birds as sentinels of environmental pollution]]></article-title>
<source><![CDATA[EcoHealth]]></source>
<year>2004</year>
<volume>1</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>263-74</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burger]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Gochfeld]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Sullivan]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Irons]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[McKnight]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Arsenic, cadmium, chromium, lead, manganese, mercury, and selenium in feathers of Black-legged Kittiwake (Rissa tridactyla) and Black Oystercatcher (Haematopus bachmani) from Prince William Sound, Alaska]]></article-title>
<source><![CDATA[Sci. Total Environ.]]></source>
<year>2008</year>
<volume>398</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>20-5</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Burger]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Temporal trends (1989-2011) in levels of mercury and other heavy metals in feathers of fledgling great egrets nesting in Barnegat Bay, NJ]]></article-title>
<source><![CDATA[Environ. Res.]]></source>
<year>2013</year>
<volume>122</volume>
<page-range>11-7</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Calle]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Alvarado]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Monserrate]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Cevallos]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Calle]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Alava]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mercury accumulation in sediments and seabird feathers from the Antarctic Peninsula]]></article-title>
<source><![CDATA[Mar. Pollut. Bull.]]></source>
<year>2015</year>
<volume>91</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>410-7</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cardiel]]></surname>
<given-names><![CDATA[I.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Taggart M]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Mateo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Using Pb-Al ratios to discriminate between internal and external deposition of Pb in feathers]]></article-title>
<source><![CDATA[Ecotox. Environ. Safe.]]></source>
<year>2011</year>
<volume>74</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>911-7</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Custer]]></surname>
<given-names><![CDATA[T.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Golden]]></surname>
<given-names><![CDATA[N.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Rattner]]></surname>
<given-names><![CDATA[B.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Element patterns in feathers of nestling black-crowned night-herons, Nycticorax nycticorax L., from four colonies in Delaware, Maryland, and Minnesota]]></article-title>
<source><![CDATA[B. Environ. Contam. Tox.]]></source>
<year>2008</year>
<volume>81</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>147-51</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dauwe]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Bervoets]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Pinxten]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Blust]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Eens]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Variation of heavy metals within and among feathers of birds of prey: Effects of molt and external contamination]]></article-title>
<source><![CDATA[Environ. Pollut.]]></source>
<year>2003</year>
<volume>124</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>429-36</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Estrada-Guerrero]]></surname>
<given-names><![CDATA[D.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Soler-Tovar]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Las aves como bioindicadores de contaminación por metales pesados en humedales]]></article-title>
<source><![CDATA[Ornitología Colombiana]]></source>
<year>2014</year>
<volume>14</volume>
<page-range>145-60</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[A.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Assessment of heavy metals in Egretta thula: Case study: Coroa Grande mangrove, Sepetiba Bay, Rio de Janeiro, Brazil]]></article-title>
<source><![CDATA[Braz. J. Biol.]]></source>
<year>2011</year>
<volume>71</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>77-82</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Förstner]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Metal transfer between solid and aqueous phases]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Förstner]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Wittmann]]></surname>
<given-names><![CDATA[G.T.]]></given-names>
</name>
</person-group>
<source><![CDATA[Metal pollution in the aquatic environment]]></source>
<year>1981</year>
<page-range>502</page-range><publisher-loc><![CDATA[Berlín, Alemania ]]></publisher-loc>
<publisher-name><![CDATA[Springer Science &amp; Business Media]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[García-Fernández]]></surname>
<given-names><![CDATA[A.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Espín]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez-López]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Feathers as a biomonitoring tool of polyhalogenated compounds: A review]]></article-title>
<source><![CDATA[Environ. Sci. Technol.]]></source>
<year>2013</year>
<volume>47</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>3028-43</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gutiérrez]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Barba]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[del Toro]]></surname>
<given-names><![CDATA[M.R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ficha Informativa de los Humedales de Ramsar (FIR), versión 2006-2008]]></source>
<year>2008</year>
</nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hansen]]></surname>
<given-names><![CDATA[A.M.]]></given-names>
</name>
<name>
<surname><![CDATA[van Afferden]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El Lago de Chapala: destino final del río Lerma]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Jiménez]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Marín]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[El agua en México vista desde la academia]]></source>
<year>2004</year>
<page-range>117-35</page-range><publisher-loc><![CDATA[Ciudad de México, México ]]></publisher-loc>
<publisher-name><![CDATA[Academia Mexicana de Ciencias]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Honda]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Min]]></surname>
<given-names><![CDATA[B.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Tatsukawa]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Distribution of heavy metals and their age-related changes in the eastern great white egret, Egretta alba modesta, in Korea]]></article-title>
<source><![CDATA[Arch. Environ. Contam. Tox.]]></source>
<year>1986</year>
<volume>15</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>185-97</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Herruzo]]></surname>
<given-names><![CDATA[F.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rubio]]></surname>
<given-names><![CDATA[A.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Lahoz]]></surname>
<given-names><![CDATA[C.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Alonso]]></surname>
<given-names><![CDATA[C.V.]]></given-names>
</name>
<name>
<surname><![CDATA[Maroto]]></surname>
<given-names><![CDATA[J.M.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El mercurio: situación actual, problemas y soluciones]]></article-title>
<source><![CDATA[Ingeniería Química]]></source>
<year>2010</year>
<volume>480</volume>
<page-range>84-91</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<collab>INEGI</collab>
<article-title xml:lang=""><![CDATA[Mapas]]></article-title>
<source><![CDATA[Instituto Nacional de Estadística, Geografía e Informática]]></source>
<year>2016</year>
</nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lodenius]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Solonen]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The use of feathers of birds of prey as indicators of metal pollution]]></article-title>
<source><![CDATA[Ecotoxicology]]></source>
<year>2013</year>
<volume>22</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>1319-34</page-range></nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lucia]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[André]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Gontier]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Diot]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Veiga]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Davail]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Trace element concentrations (mercury, cadmium, copper, zinc, lead, aluminium, nickel, arsenic, and selenium) in some aquatic birds of the Southwest Atlantic Coast of France]]></article-title>
<source><![CDATA[Arch. Environ. Contam. Toxicol.]]></source>
<year>2010</year>
<volume>58</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>844-53</page-range></nlm-citation>
</ref>
<ref id="B24">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Luoma]]></surname>
<given-names><![CDATA[S.N.]]></given-names>
</name>
<name>
<surname><![CDATA[Rainbow]]></surname>
<given-names><![CDATA[P.S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Why is metal bioaccumulation so variable? Biodynamics as a unifying concept]]></article-title>
<source><![CDATA[Environ. Sci. Technol.]]></source>
<year>2005</year>
<volume>39</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>1921-31</page-range></nlm-citation>
</ref>
<ref id="B25">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manjula]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mohanraj]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Devi]]></surname>
<given-names><![CDATA[M.P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biomonitoring of heavy metals in feathers of eleven common bird species in urban and rural environments of Tiruchirappalli, India]]></article-title>
<source><![CDATA[Environ. Monit. Assess.]]></source>
<year>2015</year>
<volume>187</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B26">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moncayo-Estrada]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Buelna-Osben]]></surname>
<given-names><![CDATA[H.R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fish fauna of Lake Chapala]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Hansen]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Afferden]]></surname>
<given-names><![CDATA[M. van]]></given-names>
</name>
</person-group>
<source><![CDATA[The Lerma-Chapala Watershed]]></source>
<year>2001</year>
<page-range>215-42</page-range><publisher-loc><![CDATA[Nueva York, EUA ]]></publisher-loc>
<publisher-name><![CDATA[Springer US]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B27">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Misztal-Szkudli&#324;ska]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Szefer]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Konieczka]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Namie&#347;nik]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Mercury in different feather types from great cormorants (Phalacrocorax carbo L.) inhabiting the vistula lagoon ecosystem in Poland]]></article-title>
<source><![CDATA[B. Environ. Contam. Tox.]]></source>
<year>2012</year>
<volume>89</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>841-4</page-range></nlm-citation>
</ref>
<ref id="B28">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Nam]]></surname>
<given-names><![CDATA[D.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Anan]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Ikemoto]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Okabe]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[E.Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Subramanian]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Tanabe]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Specific accumulation of 20 trace elements in great cormorants (Phalacrocorax carbo) from Japan]]></article-title>
<source><![CDATA[Environ. Pollut.]]></source>
<year>2005</year>
<volume>134</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>503-14</page-range></nlm-citation>
</ref>
<ref id="B29">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Parra]]></surname>
<given-names><![CDATA[O.E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Aves silvestres como bioindicadores de contaminación ambiental y metales pesados]]></article-title>
<source><![CDATA[Revista CES Salud Pública]]></source>
<year>2014</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>59-69</page-range></nlm-citation>
</ref>
<ref id="B30">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Padula]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Burger]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Newman]]></surname>
<given-names><![CDATA[S.H.]]></given-names>
</name>
<name>
<surname><![CDATA[Elbin]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Jeitner]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Metals in feathers of black-crowned night-heron (Nycticorax nycticorax) chicks from the New York Harbor Estuary]]></article-title>
<source><![CDATA[Arch. Environ. Contam. Tox.]]></source>
<year>2010</year>
<volume>59</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>157-65</page-range></nlm-citation>
</ref>
<ref id="B31">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosales-Hoz]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Carranza-Edwards]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[López-Hernández]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Heavy metals in sediments of a large, turbid tropical lake affected by anthropogenic discharges]]></article-title>
<source><![CDATA[Environ. Geol.]]></source>
<year>2000</year>
<volume>39</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>378-83</page-range></nlm-citation>
</ref>
<ref id="B32">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruelas-Inzunza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Hernández-Osuna]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Páez-Osuna]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Zamora-Arellano]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Organic and total mercury in muscle tissue of five aquatic birds with different feeding habits from the SE Gulf of California, Mexico]]></article-title>
<source><![CDATA[Chemosphere]]></source>
<year>2009</year>
<volume>76</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>415-8</page-range></nlm-citation>
</ref>
<ref id="B33">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruelas-Inzunza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Páez-Osuna]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Ruiz-Fernández]]></surname>
<given-names><![CDATA[A.C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Health Risk Associated to Dietary Intake of Mercury in Selected Coastal Areas of Mexico]]></article-title>
<source><![CDATA[B. Environ. Contam. Tox.]]></source>
<year>2011</year>
<volume>86</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>180</page-range></nlm-citation>
</ref>
<ref id="B34">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ruelas-Inzunza]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Green-Ruiz]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Zavala-Nevárez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Soto-Jiménez]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biomonitoring of Cd, Cr, Hg and Pb in the Baluarte River basin associated to a mining area (NW Mexico)]]></article-title>
<source><![CDATA[Sci. Total Enviro.]]></source>
<year>2011</year>
<volume>409</volume>
<numero>18</numero>
<issue>18</issue>
<page-range>3527-36</page-range></nlm-citation>
</ref>
<ref id="B35">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez-Virosta]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Espín]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[García-Fernández]]></surname>
<given-names><![CDATA[A.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Eeva]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review on exposure and effects of arsenic in passerine birds]]></article-title>
<source><![CDATA[Sci. Total Environ.]]></source>
<year>2015</year>
<volume>512-513</volume>
<page-range>506-25</page-range></nlm-citation>
</ref>
<ref id="B36">
<nlm-citation citation-type="book">
<collab>SAS</collab>
<source><![CDATA[SAS Institute Inc. SAS/STAT® 9.1 user&#8217;s guide]]></source>
<year>2004</year>
<page-range>5136</page-range><publisher-loc><![CDATA[Cary, NC, USA ]]></publisher-loc>
<publisher-name><![CDATA[SAS Institute Inc.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sedeño-Díaz]]></surname>
<given-names><![CDATA[J.E.]]></given-names>
</name>
<name>
<surname><![CDATA[López-López]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Water quality in the río Lerma, Mexico: An overview of the last quarter of the twentieth century]]></article-title>
<source><![CDATA[Water Resour. Manag.]]></source>
<year>2007</year>
<volume>21</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1797-812</page-range></nlm-citation>
</ref>
<ref id="B38">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sfakianakis]]></surname>
<given-names><![CDATA[D.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Renieri]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Kentouri]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Tsatsakis]]></surname>
<given-names><![CDATA[A.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of heavy metals on fish larvae deformities: A review]]></article-title>
<source><![CDATA[Environ. Res.]]></source>
<year>2015</year>
<volume>137</volume>
<page-range>246-55</page-range></nlm-citation>
</ref>
<ref id="B39">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Skoric]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Visnji&#263;-Jeftic]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Jaric]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Djikanovic]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Mickovic]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Nikcevic]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Lenhardt]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Accumulation of 20 elements in great cormorant (Phalacrocorax carbo) and its main prey, common carp (Cyprinus carpio) and Prussian carp (Carassius gibelio)]]></article-title>
<source><![CDATA[Ecotox. Environ. Safe]]></source>
<year>2012</year>
<volume>80</volume>
<page-range>244-25</page-range></nlm-citation>
</ref>
<ref id="B40">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Bernal]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Buelna]]></surname>
<given-names><![CDATA[H.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Hyodo]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Accumulation and hazard assessment of mercury to waterbirds at Lake Chapala, Mexico]]></article-title>
<source><![CDATA[Environ. Sci. Technol.]]></source>
<year>2014</year>
<volume>48</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>6359-65</page-range></nlm-citation>
</ref>
<ref id="B41">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Torres]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[M.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Taylor]]></surname>
<given-names><![CDATA[R.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez-Bernal]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Tracking metal pollution in Lake Chapala: Concentrations in water, sediments, and fish]]></article-title>
<source><![CDATA[B. Environ. Contam. Tox.]]></source>
<year>2016</year>
<volume>97</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>418-24</page-range></nlm-citation>
</ref>
<ref id="B42">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Trujillo-Cárdenas]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
<name>
<surname><![CDATA[Saucedo-Torres]]></surname>
<given-names><![CDATA[N.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Zárate del Valle]]></surname>
<given-names><![CDATA[P.F.]]></given-names>
</name>
<name>
<surname><![CDATA[Ríos-Donato]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Mendizábal]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Gómez-Salazar]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Speciation and sources of toxic metals in sediments of Lake Chapala, Mexico]]></article-title>
<source><![CDATA[J. Mex. Chem. Soc.]]></source>
<year>2010</year>
<volume>54</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>79-87</page-range></nlm-citation>
</ref>
<ref id="B43">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tsipoura]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Burger]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Newhouse]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Jeitner]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gochfeld]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Mizrahi]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Lead, mercury, cadmium, chromium, and arsenic levels in eggs, feathers, and tissues of Canada geese of the New Jersey Meadowlands]]></article-title>
<source><![CDATA[Environ. Res.]]></source>
<year>2011</year>
<volume>111</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>775-84</page-range></nlm-citation>
</ref>
<ref id="B44">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villarejo]]></surname>
<given-names><![CDATA[A.L.D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ecotoxicología y acción toxicológica del mercurio]]></article-title>
<source><![CDATA[Anal. Real Acad. Nac. Farm.]]></source>
<year>2004</year>
<volume>70</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>933-59</page-range></nlm-citation>
</ref>
<ref id="B45">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<name>
<surname><![CDATA[Ma]]></surname>
<given-names><![CDATA[J.Z.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Waterbirds as bioindicators of wetland heavy metal pollution]]></article-title>
<source><![CDATA[Procedia Environ. Sci.]]></source>
<year>2011</year>
<volume>10</volume>
<page-range>2769-74</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
