Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)

Abstract: The appearance and spread of antibiotic resistance are considered a highly complex process with many factors affecting the resistance mechanisms, including metals. In order to fully understand the spread of antibiotic resistance in different environments, combined studies including geochem...

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Autores principales:	Bermanec,Vladimir, Fiket,Zeljka, Hrenovic,Jasna, Kazazic,Snjezana, Kniewald,Goran, Venter,Chantelle, Botha,André
Lenguaje:	English
Publicado:	Universidad de Magallanes 2019
Materias:	biogeochemistry carbapenem-resistant bacteria metals sediment geochemistry
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2019000300049
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spelling	oai:scielo:S0718-686X20190003000492020-01-27Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)Bermanec,VladimirFiket,ZeljkaHrenovic,JasnaKazazic,SnjezanaKniewald,GoranVenter,ChantelleBotha,André biogeochemistry carbapenem-resistant bacteria metals sediment geochemistry Abstract: The appearance and spread of antibiotic resistance are considered a highly complex process with many factors affecting the resistance mechanisms, including metals. In order to fully understand the spread of antibiotic resistance in different environments, combined studies including geochemistry and microbiology are becoming imperative. So far, very few such studies have been conducted, and none of them involves the southernmost regions. The aim of this study was, therefore, to examine the biogeochemical characteristics of sediments of the southernmost part of Chile. Sediment geochemistry, as well as the presence of heterotrophic and carbapenem- resistant bacteria (CRB) in the Río de las Minas and neighbouring Strait of Magellan in Punta Arenas (Chile), was investigated to assess the anthropogenic impact of untreated urban wastewater on the accumulation of metals and microbial contaminants in this coastal system. Geochemistry of sediments indicated the influence of both natural processes and anthropogenic activities. Although levels of metals in sediments currently do not represent a toxic effect on organisms, the anthropogenic influence on the sediment composition in the study area cannot be denied. Clinically relevant CRB were found in river sediments (1.9 and 2.7 log CFU / mL). Our findings suggest that the Río de las Minas is under the anthropogenic impact of untreated urban wastewater and represent a significant source of potentially pathogenic CRB to the local environment.info:eu-repo/semantics/openAccessUniversidad de MagallanesAnales del Instituto de la Patagonia v.47 n.3 20192019-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2019000300049en10.4067/S0718-686X2019000300049
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	biogeochemistry carbapenem-resistant bacteria metals sediment geochemistry
spellingShingle	biogeochemistry carbapenem-resistant bacteria metals sediment geochemistry Bermanec,Vladimir Fiket,Zeljka Hrenovic,Jasna Kazazic,Snjezana Kniewald,Goran Venter,Chantelle Botha,André Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)
description	Abstract: The appearance and spread of antibiotic resistance are considered a highly complex process with many factors affecting the resistance mechanisms, including metals. In order to fully understand the spread of antibiotic resistance in different environments, combined studies including geochemistry and microbiology are becoming imperative. So far, very few such studies have been conducted, and none of them involves the southernmost regions. The aim of this study was, therefore, to examine the biogeochemical characteristics of sediments of the southernmost part of Chile. Sediment geochemistry, as well as the presence of heterotrophic and carbapenem- resistant bacteria (CRB) in the Río de las Minas and neighbouring Strait of Magellan in Punta Arenas (Chile), was investigated to assess the anthropogenic impact of untreated urban wastewater on the accumulation of metals and microbial contaminants in this coastal system. Geochemistry of sediments indicated the influence of both natural processes and anthropogenic activities. Although levels of metals in sediments currently do not represent a toxic effect on organisms, the anthropogenic influence on the sediment composition in the study area cannot be denied. Clinically relevant CRB were found in river sediments (1.9 and 2.7 log CFU / mL). Our findings suggest that the Río de las Minas is under the anthropogenic impact of untreated urban wastewater and represent a significant source of potentially pathogenic CRB to the local environment.
author	Bermanec,Vladimir Fiket,Zeljka Hrenovic,Jasna Kazazic,Snjezana Kniewald,Goran Venter,Chantelle Botha,André
author_facet	Bermanec,Vladimir Fiket,Zeljka Hrenovic,Jasna Kazazic,Snjezana Kniewald,Goran Venter,Chantelle Botha,André
author_sort	Bermanec,Vladimir
title	Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)
title_short	Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)
title_full	Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)
title_fullStr	Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)
title_full_unstemmed	Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)
title_sort	geochemical and microbiological characterization of sediments at the mouth of río de las minas (punta arenas, chile)
publisher	Universidad de Magallanes
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-686X2019000300049
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_version_	1714205716669005824

Geochemical and microbiological characterization of sediments at the mouth of Río de las Minas (Punta Arenas, Chile)

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