<?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>0012-7353</journal-id>
<journal-title><![CDATA[DYNA]]></journal-title>
<abbrev-journal-title><![CDATA[Dyna rev.fac.nac.minas]]></abbrev-journal-title>
<issn>0012-7353</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0012-73532019000200104</article-id>
<article-id pub-id-type="doi">10.15446/dyna.v86n209.75104</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Lagoon trophic state determination. Case of study Tecocomulco´s lagoon, Hidalgo, Mexico]]></article-title>
<article-title xml:lang="es"><![CDATA[Determinación del estado trófico de un lago. Caso de estudio Lago de Tecocomulco, Hidalgo, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Villagómez-Ibarra]]></surname>
<given-names><![CDATA[Roberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Prieto-García]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Delgadillo-López]]></surname>
<given-names><![CDATA[Angélica E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Ramírez]]></surname>
<given-names><![CDATA[César A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Acevedo-Sandoval]]></surname>
<given-names><![CDATA[Otilio A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Velázquez-González]]></surname>
<given-names><![CDATA[Claudia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo Instituto de Ciencias Básicas e Ingeniería Centro de Investigaciones Químicas]]></institution>
<addr-line><![CDATA[Hidalgo ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo Instituto de Ciencias Básicas e Ingeniería Área Académica de Ciencias de la Tierra y Materiales]]></institution>
<addr-line><![CDATA[Hidalgo ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo Instituto de Ciencias de la Salud ]]></institution>
<addr-line><![CDATA[Hidalgo ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>86</volume>
<numero>209</numero>
<fpage>104</fpage>
<lpage>112</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0012-73532019000200104&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0012-73532019000200104&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0012-73532019000200104&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Because of anthropogenic impacts on the trophic state of Tecocomulco´s lagoon in Hidalgo, Mexico, the quantities of nitrogen, phosphorus, and other biologically useful nutrients are being increased in spite of they are the primary determinants of a body of water's trophic state index. Nutrients such as nitrogen and phosphorus tend to be limiting resources in standing water bodies, so increased concentrations tend to result in increased plant growth, followed by corollary increases in subsequent trophic levels. Consequently, a body of water's trophic index may sometimes be used to make a rough estimate of its biological condition. Actually, in order to protect the environment, a new level of planning and execution of development projects have been originated by life cycle assessment, environmental impact researches and evaluating economic financial researches due to the understanding that, environment will be irreversible damaged by any kind of project.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Debido a los impactos antropogénicos en el estado trófico de la laguna de Tecocomulco en Hidalgo, México, las cantidades de nitrógeno, fósforo y otros nutrientes biológicamente útiles se están incrementando a pesar de que son los principales determinantes del índice de estado trófico de un cuerpo de agua. Los nutrientes como el nitrógeno y el fósforo tienden a limitar los recursos en los cuerpos de agua estancados, por lo que el aumento de las concentraciones tiende a dar como resultado un mayor crecimiento de las plantas, seguido de un corolario que aumenta en los niveles tróficos posteriores. En consecuencia, el índice trófico de un cuerpo de agua a veces puede usarse para hacer una estimación aproximada de su condición biológica. En realidad, para proteger el medioambiente, un nuevo nivel de planificación y ejecución de proyectos de desarrollo ha sido originado por la evaluación del ciclo de vida, las investigaciones de impacto ambiental y la evaluación de investigaciones económicas, debido al entendimiento de que el medio ambiente será dañado irreversiblemente por cualquier tipo de proyecto.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[trophic index]]></kwd>
<kwd lng="en"><![CDATA[anthropogenic impact]]></kwd>
<kwd lng="en"><![CDATA[chlorophyll-&#945;]]></kwd>
<kwd lng="en"><![CDATA[biodegradability]]></kwd>
<kwd lng="en"><![CDATA[eutrophication]]></kwd>
<kwd lng="es"><![CDATA[índice trófico]]></kwd>
<kwd lng="es"><![CDATA[impacto antropogénico]]></kwd>
<kwd lng="es"><![CDATA[clorofila-&#945;]]></kwd>
<kwd lng="es"><![CDATA[biodegradabilidad]]></kwd>
<kwd lng="es"><![CDATA[eutrofización]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>[1]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Glibert]]></surname>
<given-names><![CDATA[P.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Seitzinger]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Heil]]></surname>
<given-names><![CDATA[C.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Burkholder]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Parrow]]></surname>
<given-names><![CDATA[M.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Codispoti]]></surname>
<given-names><![CDATA[L.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kelly]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The role of eutrophication in the global proliferation of harmful algal blooms]]></article-title>
<source><![CDATA[Oceanography]]></source>
<year>2005</year>
<volume>18</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>198-209</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>[2]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Selman]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Greenhalgh]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Eutrophication : policies, actions, and strategies to address nutrient pollution. World Resources Institute. WRI Policy Note. Water Quality]]></article-title>
<source><![CDATA[Eutrophication and Hypoxia]]></source>
<year>2009</year>
<volume>3</volume>
<page-range>1-16</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>[3]</label><nlm-citation citation-type="book">
<collab>OECD Eutrophication of waters. Monitoring, assessment and control</collab>
<source><![CDATA[Research of the Organization for Economic Co-operation and Development (OECD)]]></source>
<year>2006</year>
<publisher-name><![CDATA[Soil and Water Conservation Society of Metro Halifax (SWCSMH)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<label>[4]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Echaniz]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Vignatti]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Determination of the trophic state and carrying capacity reservoir house]]></article-title>
<source><![CDATA[BioScriba]]></source>
<year>2009</year>
<volume>2</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>41-51</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>[5]</label><nlm-citation citation-type="">
<collab>GEH (Gobierno del Estado de Hidalgo)</collab>
<source><![CDATA[Consejo Estatal de Ecología. Ficha informativa de los humedales de Ramnsar]]></source>
<year>2003</year>
<page-range>1-10</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>[6]</label><nlm-citation citation-type="book">
<collab>CONAGUA (Comisión Nacional del Agua) Subdirección General Técnica.</collab>
<source><![CDATA[Determinación de la disponibilidad de agua en el acuífero Tecocomulco]]></source>
<year>2002</year>
<page-range>1-25</page-range><publisher-loc><![CDATA[Estado de Hidalgo, México ]]></publisher-loc>
<publisher-name><![CDATA[Gerencia de Aguas Subterráneas. Subgerencia de evaluación y modelación hidrogeológica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<label>[7]</label><nlm-citation citation-type="">
<collab>NMX-AA-014-1980</collab>
<source><![CDATA[Receiver bodies. Sampling]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B8">
<label>[8]</label><nlm-citation citation-type="">
<collab>NMX-AA-007-SCFI-2000</collab>
<source><![CDATA[Analysis of water. Temperature measurement in natural water, sewage and waste treated. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B9">
<label>[9]</label><nlm-citation citation-type="">
<collab>NMX-AA-093-SCFI-2000</collab>
<source><![CDATA[Analysis of water. Determination electrolytic conductivity. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B10">
<label>[10]</label><nlm-citation citation-type="">
<collab>NMX-AA-012-SCF2001</collab>
<source><![CDATA[Analysis of water. Determination of oxygen dissolved in natural water, sewage and waste treated. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B11">
<label>[11]</label><nlm-citation citation-type="">
<collab>NMX-AA-008-SCFI-2000</collab>
<source><![CDATA[Analysis of water. Determination of pH. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B12">
<label>[12]</label><nlm-citation citation-type="">
<collab>NMX-AA-079-SCFI-2001</collab>
<source><![CDATA[Analysis of water. Determination of nitrates in natural water, drinking, and waste waste treated. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B13">
<label>[13]</label><nlm-citation citation-type="">
<collab>NMX-AA-099-SCFI-2006</collab>
<source><![CDATA[Analysis of water. Nitrogen determination of nitrite in natural and wastewater. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B14">
<label>[14]</label><nlm-citation citation-type="">
<collab>NMX-AA-026-SCFI-2001</collab>
<source><![CDATA[Analysis of water. Total Kjeldahl nitrogen measurement in natural water, sewage and waste treated. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B15">
<label>[15]</label><nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[NMX-AA-036-SCFI-2001]]></article-title>
<source><![CDATA[Analysis of water. Determination of acid and alkalinity in natural waters, sewage and waste treated. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B16">
<label>[16]</label><nlm-citation citation-type="">
<collab>NMX-AA-034-SCFI-2001</collab>
<source><![CDATA[Analysis of water. Determination of solid and sales dissolved in natural water, sewage and waste treated. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B17">
<label>[17]</label><nlm-citation citation-type="">
<collab>NMX-AA-030-SCFI-2001</collab>
<source><![CDATA[Analysis of water. Determination of demand chemical oxygen in natural water, sewage and treated waste. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B18">
<label>[18]</label><nlm-citation citation-type="">
<collab>NMX-AA-028-SCFI-2001</collab>
<source><![CDATA[Analysis of water. Determination of biochemical oxygen demand in natural waters, wastewater (BOD5) and treated wastewater. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B19">
<label>[19]</label><nlm-citation citation-type="">
<collab>NMX-AA-029-SCFI-2001</collab>
<source><![CDATA[Analysis of water. Determination of total phosphorus in natural water, sewage and waste treated. Test method]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B20">
<label>[20]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elosegi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sabater]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
</person-group>
<source><![CDATA[Conceptos y técnicas en ecología fluvial]]></source>
<year>2009</year>
<edition>1ra edition</edition>
<publisher-loc><![CDATA[Spain ]]></publisher-loc>
<publisher-name><![CDATA[Ed Rubes]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B21">
<label>[21]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Carlson]]></surname>
<given-names><![CDATA[R.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Simpson]]></surname>
<given-names><![CDATA[J.A]]></given-names>
</name>
</person-group>
<source><![CDATA[coordinator&#8217;s guide to volunteer lake monitoring methods. North American Lake Management Society]]></source>
<year>1996</year>
<publisher-loc><![CDATA[Wisconsin ]]></publisher-loc>
<publisher-name><![CDATA[Madison]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B22">
<label>[22]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Vollenweider]]></surname>
<given-names><![CDATA[R.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Giovanardi]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Montanari]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Rinaldi]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterization of the trophic conditions of marine coastal waters with special reference to the NW Adriatic Sea: proposal for a tropic scale, turbidity and generalized water quality index]]></article-title>
<source><![CDATA[Environmetrics]]></source>
<year>1998</year>
<volume>9</volume>
<page-range>329-57</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
