Cargando…

Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories

Chlordecone (CLD) levels measured in the rivers of the French West Indies were among the highest values detected worldwide in freshwater ecosystems, and its contamination is recognised as a severe health, environmental, agricultural, economic, and social issue. In these tropical volcanic islands, ri...

Descripción completa

Detalles Bibliográficos
Autores principales: Monti, Dominique, Hubas, Cedric, Lourenço, Xavier, Begarin, Farid, Haouisée, Alexandre, Romana, Laurence, Lefrançois, Estelle, Jestin, Alexandra, Budzinski, Hélène, Tapie, Nathalie, Risser, Théo, Mansot, Jean-Louis, Keith, Philippe, Gros, Olivier, Lopez, Pascal-Jean, Lauga, Béatrice
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560750/
https://www.ncbi.nlm.nih.gov/pubmed/33057038
http://dx.doi.org/10.1038/s41598-020-73948-7
_version_ 1783595147203706880
author Monti, Dominique
Hubas, Cedric
Lourenço, Xavier
Begarin, Farid
Haouisée, Alexandre
Romana, Laurence
Lefrançois, Estelle
Jestin, Alexandra
Budzinski, Hélène
Tapie, Nathalie
Risser, Théo
Mansot, Jean-Louis
Keith, Philippe
Gros, Olivier
Lopez, Pascal-Jean
Lauga, Béatrice
author_facet Monti, Dominique
Hubas, Cedric
Lourenço, Xavier
Begarin, Farid
Haouisée, Alexandre
Romana, Laurence
Lefrançois, Estelle
Jestin, Alexandra
Budzinski, Hélène
Tapie, Nathalie
Risser, Théo
Mansot, Jean-Louis
Keith, Philippe
Gros, Olivier
Lopez, Pascal-Jean
Lauga, Béatrice
author_sort Monti, Dominique
collection PubMed
description Chlordecone (CLD) levels measured in the rivers of the French West Indies were among the highest values detected worldwide in freshwater ecosystems, and its contamination is recognised as a severe health, environmental, agricultural, economic, and social issue. In these tropical volcanic islands, rivers show strong originalities as simplified food webs, or numerous amphidromous migrating species, making the bioindication of contaminations a difficult issue. The objective of this study was to search for biological responses to CLD pollution in a spatially fixed and long-lasting component of the rivers in the West Indies: the epilithic biofilm. Physical properties were investigated through complementary analyses: friction, viscosity as well as surface adhesion were analyzed and coupled with measures of biofilm carbon content and exopolymeric substance (EPS) production. Our results have pointed out a mesoscale chemical and physical reactivity of the biofilm that can be correlated with CLD contamination. We were able to demonstrate that epilithic biofilm physical properties can effectively be used to infer freshwater environmental quality of French Antilles rivers. The friction coefficient is reactive to contamination and well correlated to carbon content and EPS production. Monitoring biofilm physical properties could offer many advantages to potential users in terms of effectiveness and ease of use, rather than more complex or time-consuming analyses.
format Online
Article
Text
id pubmed-7560750
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Nature Publishing Group UK
record_format MEDLINE/PubMed
spelling pubmed-75607502020-10-19 Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories Monti, Dominique Hubas, Cedric Lourenço, Xavier Begarin, Farid Haouisée, Alexandre Romana, Laurence Lefrançois, Estelle Jestin, Alexandra Budzinski, Hélène Tapie, Nathalie Risser, Théo Mansot, Jean-Louis Keith, Philippe Gros, Olivier Lopez, Pascal-Jean Lauga, Béatrice Sci Rep Article Chlordecone (CLD) levels measured in the rivers of the French West Indies were among the highest values detected worldwide in freshwater ecosystems, and its contamination is recognised as a severe health, environmental, agricultural, economic, and social issue. In these tropical volcanic islands, rivers show strong originalities as simplified food webs, or numerous amphidromous migrating species, making the bioindication of contaminations a difficult issue. The objective of this study was to search for biological responses to CLD pollution in a spatially fixed and long-lasting component of the rivers in the West Indies: the epilithic biofilm. Physical properties were investigated through complementary analyses: friction, viscosity as well as surface adhesion were analyzed and coupled with measures of biofilm carbon content and exopolymeric substance (EPS) production. Our results have pointed out a mesoscale chemical and physical reactivity of the biofilm that can be correlated with CLD contamination. We were able to demonstrate that epilithic biofilm physical properties can effectively be used to infer freshwater environmental quality of French Antilles rivers. The friction coefficient is reactive to contamination and well correlated to carbon content and EPS production. Monitoring biofilm physical properties could offer many advantages to potential users in terms of effectiveness and ease of use, rather than more complex or time-consuming analyses. Nature Publishing Group UK 2020-10-14 /pmc/articles/PMC7560750/ /pubmed/33057038 http://dx.doi.org/10.1038/s41598-020-73948-7 Text en © The Author(s) 2020 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Monti, Dominique
Hubas, Cedric
Lourenço, Xavier
Begarin, Farid
Haouisée, Alexandre
Romana, Laurence
Lefrançois, Estelle
Jestin, Alexandra
Budzinski, Hélène
Tapie, Nathalie
Risser, Théo
Mansot, Jean-Louis
Keith, Philippe
Gros, Olivier
Lopez, Pascal-Jean
Lauga, Béatrice
Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories
title Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories
title_full Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories
title_fullStr Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories
title_full_unstemmed Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories
title_short Physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories
title_sort physical properties of epilithic river biofilm as a new lead to perform pollution bioassessments in overseas territories
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7560750/
https://www.ncbi.nlm.nih.gov/pubmed/33057038
http://dx.doi.org/10.1038/s41598-020-73948-7
work_keys_str_mv AT montidominique physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT hubascedric physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT lourencoxavier physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT begarinfarid physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT haouiseealexandre physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT romanalaurence physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT lefrancoisestelle physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT jestinalexandra physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT budzinskihelene physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT tapienathalie physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT rissertheo physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT mansotjeanlouis physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT keithphilippe physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT grosolivier physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT lopezpascaljean physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories
AT laugabeatrice physicalpropertiesofepilithicriverbiofilmasanewleadtoperformpollutionbioassessmentsinoverseasterritories