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Elemental composition microanalysis of the aquatic biota of Northeastern Quintana Roo, Mexico: an eco-toxicological biomonitoring tool

X-ray microanalysis of northeastern Quintana Roo aquatic biota, Mexico: evidence of hazard metals presence

dc.contributorCONABIO JF012, CICY-CIO 2016, CONACYT-PROYECTO-2944es-ES
dc.contributorCONABIO JF012, CICY-CIO 2016 and CONACYT-No. 2944.en-US
dc.creatorAlvarado-Flores, Jesús
dc.creatorAndrade-Canto, Silvia Beatriz
dc.creatorCaballero-Vázquez, José Adán
dc.creatorAlmazán-Becerril, Antonio
dc.date2019-09-01
dc.date.accessioned2020-11-05T13:36:40Z
dc.date.available2020-11-05T13:36:40Z
dc.identifierhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol47-issue4-fulltext-7
dc.identifier10.3856/vol47-issue4-fulltext-7
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/159186
dc.descriptionThe microanalysis of elemental composition by means of energy dispersive X-ray is a biomonitoring tool to identify inorganic pollutants, owing to this the present report studies the lorica of diatoms, dinoflagellates, rotifers, cladocerans, copepods and fish scales by means of scanning electron microscopy/energy dispersive X-ray spectrometry in view of finding out which toxic metals are bio-accumulating in the aquatic ecosystems of northeastern Quintana Roo, Mexico. The study was carried in the coastal zone, where samples were collected in 16 exposed water bodies: dolines, mangroves and lagoons from 2014 to 2016. Later on, the microanalysis was undertaken for the most abundant organisms. Our results for lorica and scales evince the presence of essential trace elements and toxic metals: Ag, Al, Br, Cd, Cu, Fe, Hg, Pb and Zn. Furthermore, interpolation maps of the northeastern zone of Quintana Roo were produced for Cd, Cu, Hg, and Pb, in which critical pollution zones with Cd, Hg and Pb are pinpointed; such elements are deemed toxic for human and aquatic ecosystems’ health. As a conclusion, X-ray microanalysis in lorica and scales of species native to the State is a good indication of the presence of metals in water.es-ES
dc.descriptionMicroanalysis of elemental composition using dispersive energy X-ray is a biomonitoring tool to identify hazard metals. Using scanning electron microscopy/energy dispersive X-ray spectrometry, we studied the bioaccumulation of toxic metals in the lorica of diatoms, dinoflagellates, rotifers, cladocerans, copepods and fish scales in the aquatic ecosystems of northeastern Quintana Roo, Mexico. The study was carried out in the coastal zone, where samples were collected in 16 exposed bodies of water, including dolines, mangroves and lagoons. Microanalysis of the most abundant organisms revealed evidence of the presence of essential trace elements and metals (Ag, Al, Br, Cd, Cu, Fe, Hg, Pb and Zn) in the lorica and scales. Furthermore, interpolation maps of the northeastern zone of Quintana Roo were produced to pinpoint critical pollution zones of Cd, Hg and Pb, elements that are deemed toxic to the health of humans and aquatic ecosystems. In conclusion, elemental microanalysis of species native to the Mexican state of Quintana Roo using X-ray is a powerful tool for aquatic and toxicological biomonitoring of hazardous metals.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/view/vol47-issue4-fulltext-7/1091
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol47-issue4-fulltext-7/1595
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol47-issue4-fulltext-7/1596
dc.relationhttp://lajar.ucv.cl/index.php/rlajar/article/downloadSuppFile/vol47-issue4-fulltext-7/1597
dc.rightsCopyright (c) 2019 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 47, No 4 (2019); 654-664en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 47, No 4 (2019); 654-664es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectbioindicators, plankton, heavy metals, Yucatan Peninsula.es-ES
dc.subjectheavy metals; bioindicators; plankton; Yucatan Peninsulaen-US
dc.titleElemental composition microanalysis of the aquatic biota of Northeastern Quintana Roo, Mexico: an eco-toxicological biomonitoring tooles-ES
dc.titleX-ray microanalysis of northeastern Quintana Roo aquatic biota, Mexico: evidence of hazard metals presenceen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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