Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river

12 pages, 6 figures, supplementary data https://doi.org/10.1016/j.scitotenv.2020.141374

Detalles Bibliográficos
Autores: Reis, Paula C.J., Ruiz-González, Clara, Crevecoeur, Sophie, Soued, Cynthia, Prairie, Yves T.
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2020
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/217557
Acceso en línea:http://hdl.handle.net/10261/217557
Access Level:acceso abierto
Palabra clave:Methanotrophic bacteria
Methane
Reservoir
Hydropower
Tropical
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spelling Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream riverReis, Paula C.J.Ruiz-González, ClaraCrevecoeur, SophieSoued, CynthiaPrairie, Yves T.Methanotrophic bacteriaMethaneReservoirHydropowerTropical12 pages, 6 figures, supplementary data https://doi.org/10.1016/j.scitotenv.2020.141374Methane-oxidizing bacteria (MOB) present in the water column mitigate methane (CH4) emissions from hydropower complexes to the atmosphere. By creating a discontinuity in rivers, dams cause large environmental variations, including in CH4 and oxygen concentrations, between upstream, reservoir, and downstream segments. Although highest freshwater methanotrophic activity is often detected at low oxygen concentrations, CH4 oxidation in well-oxygenated downstream rivers below dams has also been reported. Here we combined DNA and RNA high-throughput sequencing with microscopic enumeration (by CARD-FISH) and biogeochemical data to investigate the abundance, composition, and potential activity of MOB taxa from upstream to downstream waters in the tropical hydropower complex Batang Ai (Malaysia). High relative abundance of MOB (up to 61% in 16S rRNA sequences and 19% in cell counts) and enrichment of stable isotopic signatures of CH4 (up to 0‰) were detected in the hypoxic hypolimnion of the reservoir and in the outflowing downstream river. MOB community shifts along the river-reservoir system reflected environmental sorting of taxa and an interrupted hydrologic connectivity in which downstream MOB communities resembled reservoir's hypolimnetic communities but differed from upstream and surface reservoir communities. In downstream waters, CH4 oxidation was accompanied by fast cell growth of particular MOB taxa. Therefore, our results suggest that rapid shifts in active MOB communities allow the mitigation of CH4 emissions from different zones of hydropower complexes, including in quickly re-oxygenated rivers downstream of damsThis study was supported by Natural Sciences and Engineering Research Council of Canada Discovery grants and Sarawak Energy Berhad and is a contribution to UNESCO Chair in Global Environmental Change. We also acknowledge financial support from the Groupe de recherche interuniversitaire en limnologie (GRIL), a strategic cluster of the Fonds de recherche du Québec Journal Pre-proof 28 - Nature et technologies (FRQNT). PCJR was supported by a merit doctoral scholarship from the Fonds de recherche du Québec - Nature et technologies (FRQNT)With the funding support of the ‘Severo Ochoa Centre of Excellence’ accreditation (CEX2019-000928-S), of the Spanish Research Agency (AEI)Peer reviewedElsevierNatural Sciences and Engineering Research Council of CanadaUNESCOFonds de Recherche du QuébecAgencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202020202020info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Postprintinfo:eu-repo/semantics/acceptedVersionhttp://hdl.handle.net/10261/217557reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttps://doi.org/10.1016/j.scitotenv.2020.141374Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2175572026-05-22T06:33:51Z
dc.title.none.fl_str_mv Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
title Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
spellingShingle Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
Reis, Paula C.J.
Methanotrophic bacteria
Methane
Reservoir
Hydropower
Tropical
title_short Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
title_full Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
title_fullStr Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
title_full_unstemmed Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
title_sort Rapid shifts in methanotrophic bacterial communities mitigate methane emissions from a tropical hydropower reservoir and its downstream river
dc.creator.none.fl_str_mv Reis, Paula C.J.
Ruiz-González, Clara
Crevecoeur, Sophie
Soued, Cynthia
Prairie, Yves T.
author Reis, Paula C.J.
author_facet Reis, Paula C.J.
Ruiz-González, Clara
Crevecoeur, Sophie
Soued, Cynthia
Prairie, Yves T.
author_role author
author2 Ruiz-González, Clara
Crevecoeur, Sophie
Soued, Cynthia
Prairie, Yves T.
author2_role author
author
author
author
dc.contributor.none.fl_str_mv Natural Sciences and Engineering Research Council of Canada
UNESCO
Fonds de Recherche du Québec
Agencia Estatal de Investigación (España)
Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]
dc.subject.none.fl_str_mv Methanotrophic bacteria
Methane
Reservoir
Hydropower
Tropical
topic Methanotrophic bacteria
Methane
Reservoir
Hydropower
Tropical
description 12 pages, 6 figures, supplementary data https://doi.org/10.1016/j.scitotenv.2020.141374
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
Postprint
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/217557
url http://hdl.handle.net/10261/217557
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv https://doi.org/10.1016/j.scitotenv.2020.141374
Sí
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
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
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score 15.81155

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