Occurrence of cyanobacteria and microcystins in hydroelectric reservoirs used for fish farming
Autor(a) principal: | |
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Data de Publicação: | 2020 |
Outros Autores: | , , , , , , , |
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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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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1808128460230492160 |