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Ecological niches and areas of overlap of the squat lobster ‘munida’ (Pleuroncodes monodon) and anchoveta (Engraulis ringens) off Peru
Abstract The world’s largest mono-specific fishery, the Peruvian anchovy or anchoveta ( Engraulis ringens ) fishery, has been the subject of many studies since the 1960s. Details of its relationshipExpand
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Relationship between abundance of small pelagic fishes and environmental factors in the Colombian Caribbean Sea: an analysis based on hydroacoustic information
The most important pelagic artisanal fishery of the Colombian Caribbean Sea is the Atlantic thread herring (Opisthonema oglinum) and the associated species scaled herring (Harengula jaguana), roundExpand
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Diurnal and Seasonal Variation of BTX in Ambient air of One Urban Site in Carmen City, Campeche, Mexico
BTX (benzene, ethylbenzene, toluene and p-xylene) and meteorological parameters were measured in ambient air of an urban site located in Carmen City, Campeche, Mexico. A total of 412 samples wereExpand
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Long term and equilibrium factor indoor radon measurements
This paper presents the annual radon gas concentrations obtained during the 1994–1995 monitoring campaign using passive electret system (type E-PERM). Radon levels were measured in 154 single familyExpand
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Gamma radiation and radon levels in Mexico City dwellings
Gamma exposure rate and radon levels were measured in 75 single-family dwellings in Mexico City in order to correlate them with local environment. Radon monitoring was performed both indoors andExpand
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Determination of trace elements in blood samples by TXRF analysis
Trace elements were determined by TXRF in whole blood samples in a randomly non-occupational exposed population living in the Metropolitan Zone of the Mexico Valley (MZMV). Arithmetic and geometricExpand
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Improving collected rainwater quality in rural communities.
The country of Mexico is facing serious problems with water quality and supply for human use and consumption in rural communities, mainly due to topographic and isolation. In Mexico the averageExpand
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Distribution patterns, larval growth and hatch dates of early stages of the mote sculpin Normanichthys crockeri (Scorpaeniformes, Normanichthyidae) in the upwelling ecosystem off central Chile
espanolSe examino la variabilidad en la distribucion espacial y temporal de los estados tempranos del mote Normanichthys crockeri en el ecosistema de surgencias de Chile central, utilizando laExpand
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ANALYSIS OF ZAPOTEC CERAMICS OF THE CAXONOS RIVER BASIN, OAXACA, MEXICO BY THERMOLUMINESCENCE (TL)
One of the most common materials that appear in archaeological excavations is the ceramics. Ce‐ ramic is an evidence for different activities and cultural periods. Thermoluminescence (TL) has beenExpand
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X-Ray fluorescence analysis of dry deposit samples in Mexico City
  • A. Ramírez
  • Environmental Science
  • Journal of Radioanalytical and Nuclear Chemistry
  • 1 August 2001
Eighteen metallic elements were analyzed in dry deposit samples bymeans of X-ray fluorescence, atomic absorption spectrometry and plasma emissionspectrometry. Samples were obtained in 10 monitoringExpand
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