Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins

The Ecuadorian Amazon rainforest stands out as one of the world’s most biodiverse regions, yet faces significant threats due to oil extraction activities dating back to the 1970s in the northeastern provinces. This research investigates the environmental and societal consequences of prolonged petrol...

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Detalles Bibliográficos
Autores: Corral García, Lara Silvia, Molina, María Carmen, Bautista, Luis Fernando, Simarro, Raquel, Espinosa, Carlos Iván, Gorines Cordero, Guillermo Jorge, González Benítez, Natalia
Tipo de recurso: artículo
Fecha de publicación:2024
País:España
Institución:IAPH
Repositorio:Biblos-e Archivo. Repositorio Institucional de la UAM
Idioma:inglés
OAI Identifier:oai:repositorio.uam.es:10486/716506
Acceso en línea:http://hdl.handle.net/10486/716506
https://dx.doi.org/10.3390/toxics12020119
Access Level:acceso abierto
Palabra clave:bacterial diversity
biomarkers
Ecuadorian Amazonia
freshwater
hydrocarbon pollution
river sediments
Biología y Biomedicina / Biología
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spelling Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River BasinsCorral García, Lara SilviaMolina, María CarmenBautista, Luis FernandoSimarro, RaquelEspinosa, Carlos IvánGorines Cordero, Guillermo JorgeGonzález Benítez, Nataliabacterial diversitybiomarkersEcuadorian Amazoniafreshwaterhydrocarbon pollutionriver sedimentsBiología y Biomedicina / BiologíaThe Ecuadorian Amazon rainforest stands out as one of the world’s most biodiverse regions, yet faces significant threats due to oil extraction activities dating back to the 1970s in the northeastern provinces. This research investigates the environmental and societal consequences of prolonged petroleum exploitation and oil spills in Ecuador’s Amazon. Conducted in June 2015, the study involved a comprehensive analysis of freshwater sediment samples from 24 locations in the Rio Aguarico and Napo basins. Parameters such as water and air temperature, conductivity, soil pH, and hydrocarbon concentrations were examined. Total petroleum hydrocarbon (TPH) concentrations ranged from 9.4 to 847.4 mg kg−1, with polycyclic aromatic hydrocarbon (PAH) levels varying from 10.15 to 711.1 mg kg−1. The pristane/phytane ratio indicated historic hydrocarbon pollution in 8 of the 15 chemically analyzed sediments. Using non-culturable techniques (Illumina), bacterial analyses identified over 350 ASV, with prominent families including Comamonadaceae, Chitinophagaceae, Anaeromyxobacteraceae, Sphingomonadaceae, and Xanthobacteraceae. Bacterial diversity, assessed in eight samples, exhibited a positive correlation with PAH concentrations. The study provides insights into how microbial communities respond to varying levels of hydrocarbon pollution, shedding light on the enduring impact of oil exploitation in the Amazonian region. Its objective is to deepen our understanding of the environmental and human well-being in the affected area, underscoring the pressing need for remedial actions in the face of ongoing ecological challengesThis research was funded by the Center for Innovation, Technology and Knowledge Transfer (CINTTEC) within the project 2015/00108/001—M1299 of the Universidad Técnica Particular de Loja/Universidad Católica de Loja, EcuadorMultidisciplinary Digital Publishing Institute (MDPI)Departamento de EcologíaFacultad de Ciencias20242024-01-31research articlehttp://purl.org/coar/resource_type/c_2df8fbb1VoRhttp://purl.org/coar/version/c_970fb48d4fbd8a85info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10486/716506https://dx.doi.org/10.3390/toxics12020119reponame:Biblos-e Archivo. Repositorio Institucional de la UAMinstname:IAPHInglésengopen accesshttp://purl.org/coar/access_right/c_abf2Attribution 4.0 Internationalhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessoai:repositorio.uam.es:10486/7165062026-06-23T12:46:27Z
dc.title.none.fl_str_mv Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
title Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
spellingShingle Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
Corral García, Lara Silvia
bacterial diversity
biomarkers
Ecuadorian Amazonia
freshwater
hydrocarbon pollution
river sediments
Biología y Biomedicina / Biología
title_short Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
title_full Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
title_fullStr Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
title_full_unstemmed Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
title_sort Bacterial Diversity in Old Hydrocarbon Polluted Sediments of Ecuadorian Amazon River Basins
dc.creator.none.fl_str_mv Corral García, Lara Silvia
Molina, María Carmen
Bautista, Luis Fernando
Simarro, Raquel
Espinosa, Carlos Iván
Gorines Cordero, Guillermo Jorge
González Benítez, Natalia
author Corral García, Lara Silvia
author_facet Corral García, Lara Silvia
Molina, María Carmen
Bautista, Luis Fernando
Simarro, Raquel
Espinosa, Carlos Iván
Gorines Cordero, Guillermo Jorge
González Benítez, Natalia
author_role author
author2 Molina, María Carmen
Bautista, Luis Fernando
Simarro, Raquel
Espinosa, Carlos Iván
Gorines Cordero, Guillermo Jorge
González Benítez, Natalia
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Departamento de Ecología
Facultad de Ciencias
dc.subject.none.fl_str_mv bacterial diversity
biomarkers
Ecuadorian Amazonia
freshwater
hydrocarbon pollution
river sediments
Biología y Biomedicina / Biología
topic bacterial diversity
biomarkers
Ecuadorian Amazonia
freshwater
hydrocarbon pollution
river sediments
Biología y Biomedicina / Biología
description The Ecuadorian Amazon rainforest stands out as one of the world’s most biodiverse regions, yet faces significant threats due to oil extraction activities dating back to the 1970s in the northeastern provinces. This research investigates the environmental and societal consequences of prolonged petroleum exploitation and oil spills in Ecuador’s Amazon. Conducted in June 2015, the study involved a comprehensive analysis of freshwater sediment samples from 24 locations in the Rio Aguarico and Napo basins. Parameters such as water and air temperature, conductivity, soil pH, and hydrocarbon concentrations were examined. Total petroleum hydrocarbon (TPH) concentrations ranged from 9.4 to 847.4 mg kg−1, with polycyclic aromatic hydrocarbon (PAH) levels varying from 10.15 to 711.1 mg kg−1. The pristane/phytane ratio indicated historic hydrocarbon pollution in 8 of the 15 chemically analyzed sediments. Using non-culturable techniques (Illumina), bacterial analyses identified over 350 ASV, with prominent families including Comamonadaceae, Chitinophagaceae, Anaeromyxobacteraceae, Sphingomonadaceae, and Xanthobacteraceae. Bacterial diversity, assessed in eight samples, exhibited a positive correlation with PAH concentrations. The study provides insights into how microbial communities respond to varying levels of hydrocarbon pollution, shedding light on the enduring impact of oil exploitation in the Amazonian region. Its objective is to deepen our understanding of the environmental and human well-being in the affected area, underscoring the pressing need for remedial actions in the face of ongoing ecological challenges
publishDate 2024
dc.date.none.fl_str_mv 2024
2024-01-31
dc.type.none.fl_str_mv research article
http://purl.org/coar/resource_type/c_2df8fbb1
VoR
http://purl.org/coar/version/c_970fb48d4fbd8a85
dc.type.openaire.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10486/716506
https://dx.doi.org/10.3390/toxics12020119
url http://hdl.handle.net/10486/716506
https://dx.doi.org/10.3390/toxics12020119
dc.language.none.fl_str_mv Inglés
eng
language_invalid_str_mv Inglés
language eng
dc.rights.none.fl_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
dc.rights.openaire.fl_str_mv info:eu-repo/semantics/openAccess
rights_invalid_str_mv open access
http://purl.org/coar/access_right/c_abf2
Attribution 4.0 International
http://creativecommons.org/licenses/by/4.0/
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
publisher.none.fl_str_mv Multidisciplinary Digital Publishing Institute (MDPI)
dc.source.none.fl_str_mv reponame:Biblos-e Archivo. Repositorio Institucional de la UAM
instname:IAPH
instname_str IAPH
reponame_str Biblos-e Archivo. Repositorio Institucional de la UAM
collection Biblos-e Archivo. Repositorio Institucional de la UAM
repository.name.fl_str_mv
repository.mail.fl_str_mv
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