Analysis of the impact of organic pollutants on marine microbial communities
Increasing amounts of organic synthetic chemicals are currently emitted to the environment by human activities. The more recalcitrant fraction of this pollutant mixture reaches marine ecosystems mainly through rivers, continental run-off, and diffuse atmospheric inputs. Once in seawater, it represen...
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ftcsic:oai:digital.csic.es:10261/339690 2024-02-11T09:58:26+01:00 Analysis of the impact of organic pollutants on marine microbial communities Cerro Gálvez, Elena Vila Costa, Maria Dachs, Jordi 2022 http://hdl.handle.net/10261/339690 en eng https://upcommons.upc.edu/handle/2117/176430 Sí http://hdl.handle.net/10261/339690 open Organic pollutants (OP) Organic synthetic chemicals Ensure availability and sustainable management of water and sanitation for all tesis 2022 ftcsic 2024-01-16T11:55:14Z Increasing amounts of organic synthetic chemicals are currently emitted to the environment by human activities. The more recalcitrant fraction of this pollutant mixture reaches marine ecosystems mainly through rivers, continental run-off, and diffuse atmospheric inputs. Once in seawater, it represents the anthropogenic fraction of the dissolved organic carbon (ADOC) pool. However, the total amount of ADOC is unknown, while its effects to ecosystems and detailed composition is largely unknown. Over the past decades, the scientific research effort has focused on the effects of organic pollutants (OPs) in marine biota, especially in oil spills events or under toxicological testing in laboratories, neglecting the importance of the chronic pollution perturbation of the biosphere composition caused by diffusive inputs of large number of pollutants at low concentrations. Our aim was to combine functional genomic tools with quantitative biogeochemical approaches under manipulated conditions to determine the bidirectional interaction between marine microbial community structure and function and the ADOC present in coastal seawater. Additionally, it was also intended to perform similar experiments in areas with diverse environmental conditions to elucidate the role of the trophic conditions and levels of pollutants in the response. In order to fulfil the proposed objectives, several OP amendment experiments were performed with different OP additions and contrasted seawater from the North-Western Mediterranean, the Arctic and the Antarctic. On the one hand, the effect caused by 4 families of pollutants individually (alkanes, polycyclic aromatic hydrocarbons, organophosphate esters and perfluoroalkyl substances (PFAS)) was tested in 5 marine bacterial communities of the NW Mediterranean, and the specific effect of perfluorooctanesulfonate (PFOS) and perfluorooctanoate acids (corresponding to the family of PFAS) in communities from Deception Island (Antarctica). On the other hand, experiments were conducted to observe the ... Thesis Antarc* Antarctic Antarctica Arctic Deception Island Digital.CSIC (Spanish National Research Council) Antarctic Arctic Deception Island ENVELOPE(-60.633,-60.633,-62.950,-62.950) The Antarctic |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Organic pollutants (OP) Organic synthetic chemicals Ensure availability and sustainable management of water and sanitation for all |
spellingShingle |
Organic pollutants (OP) Organic synthetic chemicals Ensure availability and sustainable management of water and sanitation for all Cerro Gálvez, Elena Analysis of the impact of organic pollutants on marine microbial communities |
topic_facet |
Organic pollutants (OP) Organic synthetic chemicals Ensure availability and sustainable management of water and sanitation for all |
description |
Increasing amounts of organic synthetic chemicals are currently emitted to the environment by human activities. The more recalcitrant fraction of this pollutant mixture reaches marine ecosystems mainly through rivers, continental run-off, and diffuse atmospheric inputs. Once in seawater, it represents the anthropogenic fraction of the dissolved organic carbon (ADOC) pool. However, the total amount of ADOC is unknown, while its effects to ecosystems and detailed composition is largely unknown. Over the past decades, the scientific research effort has focused on the effects of organic pollutants (OPs) in marine biota, especially in oil spills events or under toxicological testing in laboratories, neglecting the importance of the chronic pollution perturbation of the biosphere composition caused by diffusive inputs of large number of pollutants at low concentrations. Our aim was to combine functional genomic tools with quantitative biogeochemical approaches under manipulated conditions to determine the bidirectional interaction between marine microbial community structure and function and the ADOC present in coastal seawater. Additionally, it was also intended to perform similar experiments in areas with diverse environmental conditions to elucidate the role of the trophic conditions and levels of pollutants in the response. In order to fulfil the proposed objectives, several OP amendment experiments were performed with different OP additions and contrasted seawater from the North-Western Mediterranean, the Arctic and the Antarctic. On the one hand, the effect caused by 4 families of pollutants individually (alkanes, polycyclic aromatic hydrocarbons, organophosphate esters and perfluoroalkyl substances (PFAS)) was tested in 5 marine bacterial communities of the NW Mediterranean, and the specific effect of perfluorooctanesulfonate (PFOS) and perfluorooctanoate acids (corresponding to the family of PFAS) in communities from Deception Island (Antarctica). On the other hand, experiments were conducted to observe the ... |
author2 |
Vila Costa, Maria Dachs, Jordi |
format |
Thesis |
author |
Cerro Gálvez, Elena |
author_facet |
Cerro Gálvez, Elena |
author_sort |
Cerro Gálvez, Elena |
title |
Analysis of the impact of organic pollutants on marine microbial communities |
title_short |
Analysis of the impact of organic pollutants on marine microbial communities |
title_full |
Analysis of the impact of organic pollutants on marine microbial communities |
title_fullStr |
Analysis of the impact of organic pollutants on marine microbial communities |
title_full_unstemmed |
Analysis of the impact of organic pollutants on marine microbial communities |
title_sort |
analysis of the impact of organic pollutants on marine microbial communities |
publishDate |
2022 |
url |
http://hdl.handle.net/10261/339690 |
long_lat |
ENVELOPE(-60.633,-60.633,-62.950,-62.950) |
geographic |
Antarctic Arctic Deception Island The Antarctic |
geographic_facet |
Antarctic Arctic Deception Island The Antarctic |
genre |
Antarc* Antarctic Antarctica Arctic Deception Island |
genre_facet |
Antarc* Antarctic Antarctica Arctic Deception Island |
op_relation |
https://upcommons.upc.edu/handle/2117/176430 Sí http://hdl.handle.net/10261/339690 |
op_rights |
open |
_version_ |
1790594079261720576 |