Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms

Este artículo contiene 13 páginas, 6 figuras, 1 página.

Bibliographic Details
Authors: Espinosa, Carmen, Abril, Meritxell, Guasch, Helena, Pou, Núria, Proia, Lorenzo, Ricart, Marta, Ordeix, M., Llenas, Laia
Format: article
Status:Published version
Publication Date:2020
Country:España
Institution:Consejo Superior de Investigaciones Científicas (CSIC)
Repository:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/200080
Online Access:http://hdl.handle.net/10261/200080
Access Level:Open access
Keyword:Geosmin
Water flow
Light availability
Biofilms
Mesocosms
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spelling Water Flow and Light Availability Influence on Intracellular Geosmin Production in River BiofilmsEspinosa, CarmenAbril, MeritxellGuasch, HelenaPou, NúriaProia, LorenzoRicart, MartaOrdeix, M.Llenas, LaiaGeosminWater flowLight availabilityBiofilmsMesocosmsEste artículo contiene 13 páginas, 6 figuras, 1 página.Hydro-morphological alterations in water bodies caused by climate change and human activities affects the ecosystem functioning and generate important water quality problems. Some of these alterations can generate an increase in cyanobacterial blooms, which are associated with the appearance of bad taste and odorous compounds such as geosmin. The factors that trigger their production are still unclear, and this inability to predict geosmin episodes provokes economic problems for water supply companies. This study aims to evaluate the effects of water flow and light availability on biofilm development and intracellular geosmin formation. A mesocosm experiment was performed between February–April, 2019. The mesocosms were a set of 10 outdoor 3 m long flumes, with a continuous water supply from the Ter river (Catalonia, NE Spain). Two light intensities were established: natural light and light reduced to 80%, combined with five gradual water flows from 0.09 to 1.10 L/s. Water samples were taken to analyze nutrients, and biofilm samples, to analyze geosmin concentration, chlorophyll a and the community. Geosmin in biofilm was detected in those treatments in which Oscillatoria sp. appeared. The concentration of intracellular geosmin was higher at lower water flows (0.09 and 0.18 L/s), and the highest (2.12 mg/g) was found in the flume with the lowest water flow (0.09 L/s) and irradiation (20%). This flume was the one that presented a greater concentration of Oscillatoria sp. (21% of the community). It stands out that, when geosmin in biofilm was found, the dissolved inorganic nitrogen and soluble reactive phosphorus ratio decreased, from an average of 417:1 to 14:1. This was mainly due to an increase in inorganic phosphorus concentration generated by a change in the nutrient uptake capacity of the community’s biofilm. The results obtained in this study indicated the potential implications for stream ecosystem management to control geosmin appearance. Likewise, they could be used as an early warning system, establishing that in times of drought, which lead to a general decrease in river water flow, the situation could be optimal for the appearance and development of geosmin producing cyanobacteria in low-flow areas near the river banks.The research leading to these results has received funding from the European Research Council (ERC) under the European Union’s Horizon 2020 Research and Innovation Program – H2020 INTCATCH (Grant Agreement No. 689341). LP has received funding from the Postdoctoral Fellowships Programme Beatriu de Pinós, funded by the Secretary of Universities and Research (Government of Catalonia) and by the Horizon 2020 Programme of Research and Innovation of the European Union under the Marie Skłodowska-Curie Grant Agreement No. 801370.Peer reviewedFrontiers MediaConsejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/200080reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.3389/fmicb.2019.03002Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2000802026-05-22T06:33:51Z
dc.title.none.fl_str_mv Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
title Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
spellingShingle Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
Espinosa, Carmen
Geosmin
Water flow
Light availability
Biofilms
Mesocosms
title_short Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
title_full Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
title_fullStr Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
title_full_unstemmed Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
title_sort Water Flow and Light Availability Influence on Intracellular Geosmin Production in River Biofilms
dc.creator.none.fl_str_mv Espinosa, Carmen
Abril, Meritxell
Guasch, Helena
Pou, Núria
Proia, Lorenzo
Ricart, Marta
Ordeix, M.
Llenas, Laia
author Espinosa, Carmen
author_facet Espinosa, Carmen
Abril, Meritxell
Guasch, Helena
Pou, Núria
Proia, Lorenzo
Ricart, Marta
Ordeix, M.
Llenas, Laia
author_role author
author2 Abril, Meritxell
Guasch, Helena
Pou, Núria
Proia, Lorenzo
Ricart, Marta
Ordeix, M.
Llenas, Laia
author2_role author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Geosmin
Water flow
Light availability
Biofilms
Mesocosms
topic Geosmin
Water flow
Light availability
Biofilms
Mesocosms
description Este artículo contiene 13 páginas, 6 figuras, 1 página.
publishDate 2020
dc.date.none.fl_str_mv 2020
2020
2020
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
Publisher's version
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/200080
url http://hdl.handle.net/10261/200080
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.3389/fmicb.2019.03002
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Frontiers Media
publisher.none.fl_str_mv Frontiers Media
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869411046174752768
score 15,812429

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