Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming

Detalhes bibliográficos
Autor(a) principal: Falcone-Dias, Maria Fernanda
Data de Publicação: 2020
Outros Autores: Rodrigues, Marianna Vaz [UNESP], Nielsen, Jeppe Lund, De Jonge, Nadieh, Jørgensen, Niels O. G., Alonso, Diego Peres [UNESP], David, Gianmarco S., Da Silva, Reinaldo José [UNESP], Araújo, João Pessoa [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.2166/wh.2020.089
http://hdl.handle.net/11449/207030
Resumo: Fish farming can have a negative impact on water quality and aquatic organisms due to emerging blooms of Cyanobacteria and the production of cyanotoxins. In this study, the effect of aquaculture in hydroelectric reservoirs in Brazil was evaluated in six fish farms and in upstream and downstream water through analysis of the microbiome, Cyanobacteria and microcystin concentrations. Synechococcus and Microcystis were observed at all six locations, while Limnothrix was also observed abundantly at two locations. An increase in the relative abundance of Cyanobacteria inside the fish farms was observed at two locations, while an increase of Cyanobacteria was observed in downstream at five of the six locations. Microcystins were detected in significant and high values in all locations, with concentrations up to 1.59 ìg/L. The trend in microcystin concentrations was mirrored in copy numbers of the mcyE gene (encodes microcystin synthetase) and presence of Microcystis, but not in any of the other observed cyanobacterial groups. In summary, the study shows that aquaculture production influenced the water microbiome inside and downstream the fish farms, and a direct correlation was found between mcyE gene copies, microcystin production and abundance of Microcystis, but not for the total abundance of Cyanobacteria.
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spelling Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farmingAmplicon sequencingAquacultureCyanobacteriaMicrobiomeMicrocystinsWater qualityFish farming can have a negative impact on water quality and aquatic organisms due to emerging blooms of Cyanobacteria and the production of cyanotoxins. In this study, the effect of aquaculture in hydroelectric reservoirs in Brazil was evaluated in six fish farms and in upstream and downstream water through analysis of the microbiome, Cyanobacteria and microcystin concentrations. Synechococcus and Microcystis were observed at all six locations, while Limnothrix was also observed abundantly at two locations. An increase in the relative abundance of Cyanobacteria inside the fish farms was observed at two locations, while an increase of Cyanobacteria was observed in downstream at five of the six locations. Microcystins were detected in significant and high values in all locations, with concentrations up to 1.59 ìg/L. The trend in microcystin concentrations was mirrored in copy numbers of the mcyE gene (encodes microcystin synthetase) and presence of Microcystis, but not in any of the other observed cyanobacterial groups. In summary, the study shows that aquaculture production influenced the water microbiome inside and downstream the fish farms, and a direct correlation was found between mcyE gene copies, microcystin production and abundance of Microcystis, but not for the total abundance of Cyanobacteria.Strategiske ForskningsrådSão Paulo State Agency for Agribusiness Technology (APTA) at Jaú CP 66 JaúDepartment of Microbiology and Immunology Biosciences Institute Univ. Estadual Paulista (UNESP) at Botucatu Distrito de Rubião JúniorDepartment of Chemistry and Bioscience Aalborg UniversityDepartment of Plant and Environmental Sciences University of CopenhagenDepartment of Parasitology Biosciences Institute Univ. Estadual Paulista (UNESP) at Botucatu Distrito de Rubião JúniorDepartment of Microbiology and Immunology Biosciences Institute Univ. Estadual Paulista (UNESP) at Botucatu Distrito de Rubião JúniorDepartment of Parasitology Biosciences Institute Univ. Estadual Paulista (UNESP) at Botucatu Distrito de Rubião JúniorStrategiske Forskningsråd: 3050-00008ACP 66 JaúUniversidade Estadual Paulista (Unesp)Aalborg UniversityUniversity of CopenhagenFalcone-Dias, Maria FernandaRodrigues, Marianna Vaz [UNESP]Nielsen, Jeppe LundDe Jonge, NadiehJørgensen, Niels O. G.Alonso, Diego Peres [UNESP]David, Gianmarco S.Da Silva, Reinaldo José [UNESP]Araújo, João Pessoa [UNESP]2021-06-25T10:47:53Z2021-06-25T10:47:53Z2020-12-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article983-994http://dx.doi.org/10.2166/wh.2020.089Journal of Water and Health, v. 18, n. 6, p. 983-994, 2020.1996-78291477-8920http://hdl.handle.net/11449/20703010.2166/wh.2020.0892-s2.0-85098291519Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Water and Healthinfo:eu-repo/semantics/openAccess2021-10-23T16:01:05Zoai:repositorio.unesp.br:11449/207030Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T15:05:49.771554Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
title Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
spellingShingle Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
Falcone-Dias, Maria Fernanda
Amplicon sequencing
Aquaculture
Cyanobacteria
Microbiome
Microcystins
Water quality
title_short Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
title_full Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
title_fullStr Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
title_full_unstemmed Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
title_sort Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
author Falcone-Dias, Maria Fernanda
author_facet Falcone-Dias, Maria Fernanda
Rodrigues, Marianna Vaz [UNESP]
Nielsen, Jeppe Lund
De Jonge, Nadieh
Jørgensen, Niels O. G.
Alonso, Diego Peres [UNESP]
David, Gianmarco S.
Da Silva, Reinaldo José [UNESP]
Araújo, João Pessoa [UNESP]
author_role author
author2 Rodrigues, Marianna Vaz [UNESP]
Nielsen, Jeppe Lund
De Jonge, Nadieh
Jørgensen, Niels O. G.
Alonso, Diego Peres [UNESP]
David, Gianmarco S.
Da Silva, Reinaldo José [UNESP]
Araújo, João Pessoa [UNESP]
author2_role author
author
author
author
author
author
author
author
dc.contributor.none.fl_str_mv CP 66 Jaú
Universidade Estadual Paulista (Unesp)
Aalborg University
University of Copenhagen
dc.contributor.author.fl_str_mv Falcone-Dias, Maria Fernanda
Rodrigues, Marianna Vaz [UNESP]
Nielsen, Jeppe Lund
De Jonge, Nadieh
Jørgensen, Niels O. G.
Alonso, Diego Peres [UNESP]
David, Gianmarco S.
Da Silva, Reinaldo José [UNESP]
Araújo, João Pessoa [UNESP]
dc.subject.por.fl_str_mv Amplicon sequencing
Aquaculture
Cyanobacteria
Microbiome
Microcystins
Water quality
topic Amplicon sequencing
Aquaculture
Cyanobacteria
Microbiome
Microcystins
Water quality
description Fish farming can have a negative impact on water quality and aquatic organisms due to emerging blooms of Cyanobacteria and the production of cyanotoxins. In this study, the effect of aquaculture in hydroelectric reservoirs in Brazil was evaluated in six fish farms and in upstream and downstream water through analysis of the microbiome, Cyanobacteria and microcystin concentrations. Synechococcus and Microcystis were observed at all six locations, while Limnothrix was also observed abundantly at two locations. An increase in the relative abundance of Cyanobacteria inside the fish farms was observed at two locations, while an increase of Cyanobacteria was observed in downstream at five of the six locations. Microcystins were detected in significant and high values in all locations, with concentrations up to 1.59 ìg/L. The trend in microcystin concentrations was mirrored in copy numbers of the mcyE gene (encodes microcystin synthetase) and presence of Microcystis, but not in any of the other observed cyanobacterial groups. In summary, the study shows that aquaculture production influenced the water microbiome inside and downstream the fish farms, and a direct correlation was found between mcyE gene copies, microcystin production and abundance of Microcystis, but not for the total abundance of Cyanobacteria.
publishDate 2020
dc.date.none.fl_str_mv 2020-12-01
2021-06-25T10:47:53Z
2021-06-25T10:47:53Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.2166/wh.2020.089
Journal of Water and Health, v. 18, n. 6, p. 983-994, 2020.
1996-7829
1477-8920
http://hdl.handle.net/11449/207030
10.2166/wh.2020.089
2-s2.0-85098291519
url http://dx.doi.org/10.2166/wh.2020.089
http://hdl.handle.net/11449/207030
identifier_str_mv Journal of Water and Health, v. 18, n. 6, p. 983-994, 2020.
1996-7829
1477-8920
10.2166/wh.2020.089
2-s2.0-85098291519
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Water and Health
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 983-994
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
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