<?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>1405-3322</journal-id>
<journal-title><![CDATA[Boletín de la Sociedad Geológica Mexicana]]></journal-title>
<abbrev-journal-title><![CDATA[Bol. Soc. Geol. Mex]]></abbrev-journal-title>
<issn>1405-3322</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Geológica Mexicana A.C.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-33222017000200313</article-id>
<article-id pub-id-type="doi">10.18268/bsgm2017v69n2a3</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Basic limnology of 30 continental waterbodies of the Transmexican Volcanic Belt across climatic and environmental gradients]]></article-title>
<article-title xml:lang="es"><![CDATA[Limnología básica de 30 cuerpos de agua continentales del Cinturón Volcánico Trans-Mexicano a través de gradientes climáticos y ambientales]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sigala]]></surname>
<given-names><![CDATA[Itzel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Caballero]]></surname>
<given-names><![CDATA[Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Correa-Metrio]]></surname>
<given-names><![CDATA[Alexander]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Lozano-García]]></surname>
<given-names><![CDATA[Socorro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vázquez]]></surname>
<given-names><![CDATA[Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez]]></surname>
<given-names><![CDATA[Liseth]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Zawisza]]></surname>
<given-names><![CDATA[Edyta]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geología Posgrado en Ciencias Biológicas]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geofísica ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Geología ]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Instituto de Ecología, A.C.  ]]></institution>
<addr-line><![CDATA[Xalapa Veracruz]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Polish Academy of Sciences Institute of Geological Sciences ]]></institution>
<addr-line><![CDATA[Warsaw ]]></addr-line>
<country>Poland</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2017</year>
</pub-date>
<volume>69</volume>
<numero>2</numero>
<fpage>313</fpage>
<lpage>370</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-33222017000200313&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-33222017000200313&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-33222017000200313&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Thirty waterbodies on the Transmexican Volcanic Belt were studied using standardized de México, México. methods, covering an altitudinal gradient from 737 to 4283 masl and different climatic types. Waterbodies of tree different origins were in cluded: tectonic (4), volcanic (11 craters or maars and 7 volcanic dams) and reservoirs (8). Reservoirs and tectonic lakes were mostly shallow (&lt; 6 m) while volcanic lakes were the deepest (&gt; 25 m). Most were freshwater bodies with alkaline waters (pH &gt; 7.5) dominated by [Ca2+] or [Na+] and [HCO3-]. Subsaline (6) and hyposaline (2) lakes were dominated by [Cl-] - [HCO3-] y [Na+]. In thirteen lakes, nutrient levels could be limiting primary productivity, mostly P, but also N and Si. Half of the lakes (16) were eutrophic or hypertrophic and most of these were also shallow (&lt; 8 m) and correlated with warm, moist conditions. Ninety-seven taxa of aquatic organisms (phytoplankton, and surface sediment diatoms, testate amoebae, cladoceran and ostracodes) were reported, which could potentially be used as bioindicators. Principal component analysis (PCA) showed that temperature and precipitation were the main environmental gradients related to the lakes&#8217; limnological characteristics: colder climates related with lowest TDS (&lt; 100 mg/L); dry climates with subsaline and hyposaline lakes, and warm-moist climates with eutrophic and hypertrophic lakes. Through the Procrustes technique we obtained indications that general geographic variables were important for some of the lakes, whereas the local factors were significant for others. It is through the knowledge of the basic limnology and biodiversity of Mexican lakes that more complex or detailed studies can be proposed leading to a better understanding, management, and conservation of water resources.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Empleando metodologías estandarizadas se estudiaron 30 cuerpos de agua en la Faja Volcánica Transmexicana a lo largo de un gradiente altitudinal (737 a 4283 msnm) y climatológico. Los lagos se incluyen en tres categorías: tectónicos (4), volcánicos (11 cráteres o maars, 7 represas volcánicas) y presas (8). Los cuerpos más someros (&lt; 6 m) fueron principalmente presas y lagos tectónicos y los más profundos (&gt; 25 m) volcánicos. La mayoría fueron lagos de agua dulce y alcalina (pH &gt; 7.5) dominados por [Ca2+] o [Na+] y [HCO3-]. Los lagos subsalinos (6) e hiposalinos (2) estuvieron dominados por [Cl-] - [HCO3-] y [Na+]. En trece lagos los niveles de nutrientes pudieron ser limitantes de la productividad primaria, principalmente el P, pero también N y Si. La mitad (16) fueron lagos eutróficos o hipertróficos y estos fueron predominantemente someros (&lt; 8 m) y correlacionaron con climas cálido-húmedos. Se reportaron 97 taxa acuáticos (fitoplancton y diatomeas, amebas testadas, cladoceros y ostrácodos en sedimento superficial) que potencialmente pudieran ser usados como bioindicadores. Un análisis de componentes principales (PCA) demuestra que la temperatura y precipitación fueron los gradientes ambientales más importantes ligados con las características limnológicas: climas relativamente fríos correlacionaron con los lagos más diluidos (TDS &lt; 100 mg/L); climas secos con los subsalinos e hiposalinos y climas cálido-húmedos con los eutróficos e hipertróficos. Un análisis de Procrustes indica que para algunos lagos los factores geográficos generales fueron más importantes mientras para otros los factores locales fueron determinantes. El estudio y conocimiento de la limnología y biodiversidad de los lagos mexicanos permitirán plantear estudios más detallados y/o complejos que lleven a mejores estrategias de conservación y manejo de los recursos acuáticos.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Hydrochemistry]]></kwd>
<kwd lng="en"><![CDATA[salinity]]></kwd>
<kwd lng="en"><![CDATA[trophic state]]></kwd>
<kwd lng="en"><![CDATA[benthos]]></kwd>
<kwd lng="en"><![CDATA[plankton]]></kwd>
<kwd lng="es"><![CDATA[hidroquímica]]></kwd>
<kwd lng="es"><![CDATA[salinidad]]></kwd>
<kwd lng="es"><![CDATA[estado trófico]]></kwd>
<kwd lng="es"><![CDATA[bentos]]></kwd>
<kwd lng="es"><![CDATA[plancton]]></kwd>
</kwd-group>
</article-meta>
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