Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819)
Autor(a) principal: | |
---|---|
Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Research, Society and Development |
Texto Completo: | https://rsdjournal.org/index.php/rsd/article/view/18582 |
Resumo: | Recently in Brazil began to be built small hydroelectric plants on small rivers order to increase energy capacity. The São Francisco real river was barred to form the reservoir of PCH São Francisco. The aim of this work was to verify if the reservoir of PCH São Francisco, changed the population structure of Psalidodon aff. fasciatus. Quarterly samples of fish were held at three sampling sites, with gillnets, in phases before and after the filling of the reservoir. Significant differences were observed in the abundance in the reservoir and downstream sites. In size structure, higher frequency of smaller individuals downstream and into the reservoir. With respect to reproductive activity, there was a reduction of the intensity in the reservoir in the period immediately after the construction of the dam. As for the condition factor in the reservoir and downstream were observed positive changes. Therefore, we conclude that the PCH São Francisco influenced positively the abundance and size structure and the condition factor of P. aff. fasciatus, which is related to the greater availability of food and habitats after the construction of the dam. |
id |
UNIFEI_73d78196917810881b91f3324ba38a38 |
---|---|
oai_identifier_str |
oai:ojs.pkp.sfu.ca:article/18582 |
network_acronym_str |
UNIFEI |
network_name_str |
Research, Society and Development |
repository_id_str |
|
spelling |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819)Pequeña central hidroeléctrica afecta la estructura poblacional del lambari cola roja Psalidodon aff. fasciatus (Cuvier 1819)Pequena central hidrelétrica afeta a estrutura populacional do lambari do rabo vermelho Psalidodon aff. fasciatus (Cuvier 1819)Atividade reprodutivaCapturaFator de condiçãoIctiofauna.Actividad reproductivaCapturaFactor de condiciónIctiofauna.Condition factorReproductive activityCatchIchthyofauna.Recently in Brazil began to be built small hydroelectric plants on small rivers order to increase energy capacity. The São Francisco real river was barred to form the reservoir of PCH São Francisco. The aim of this work was to verify if the reservoir of PCH São Francisco, changed the population structure of Psalidodon aff. fasciatus. Quarterly samples of fish were held at three sampling sites, with gillnets, in phases before and after the filling of the reservoir. Significant differences were observed in the abundance in the reservoir and downstream sites. In size structure, higher frequency of smaller individuals downstream and into the reservoir. With respect to reproductive activity, there was a reduction of the intensity in the reservoir in the period immediately after the construction of the dam. As for the condition factor in the reservoir and downstream were observed positive changes. Therefore, we conclude that the PCH São Francisco influenced positively the abundance and size structure and the condition factor of P. aff. fasciatus, which is related to the greater availability of food and habitats after the construction of the dam.Recientemente, en Brasil, se comenzaron a construir pequeñas centrales hidroeléctricas en pequeños ríos para aumentar la capacidad energética, y con eso, el río São Francisco Verdadeiro fue represado para la formación del embalse de la PCH São Francisco. El objetivo de este trabajo fue verificar si la formación del embalse de la PCH São Francisco alteró positivamente la estructura poblacional de Psalidodon aff. fasciatus. Las colecciones trimestrales de pescado se realizaron en tres lugares de muestreo, con redes de espera, en las fases de pre y posllenado. Se encontraron diferencias significativas em la abundancia en el embalse y en los sitios río abajo. En la estructura en tamaño, fue observado una mayor frecuencia de individuos más pequeños em aguas abajo y en el embalse. En cuanto a la actividad reproductiva, hubo una reducción de la intensidad en el embalse en el período inmediatamente posterior al embalse. En cuanto al factor de condición en el embalse y aguas abajo, se verificaron cambios positivos. Por lo tanto, concluimos que la implementación del PCH São Francisco influyó positivamente en la abundancia, estructura de tamaño y factor de condición de P. aff. fasciatus, lo que se relaciona con la mayor disponibilidad de alimentos y hábitats después de la represa.Recentemente no Brasil começaram a ser construídas pequenas centrais hidrelétricas em rios de pequena ordem para aumentar a capacidade energética, e com isso, o rio São Francisco Verdadeiro foi barrado para a formação do reservatório da PCH São Francisco. O objetivo deste trabalho foi verificar se a formação do reservatório da PCH São Francisco, alterou positivamente a estrutura populacional de Psalidodon aff. fasciatus. As coletas trimestrais dos peixes foram realizadas em três locais amostrais, com redes de espera, nas fases pré e pós enchimento. Foram verificadas diferenças significativas na abundância, nos locais do reservatório e jusante. Na estrutura em tamanho, observou-se maior frequência de indivíduos de menor tamanho a jusante e no reservatório. Com relação à atividade reprodutiva, houve redução da intensidade no reservatório no período imediatamente após o represamento. Quanto ao fator de condição no reservatório e na jusante foram verificadas alterações positivas. Deste modo, concluímos que a implantação da PCH São Francisco influenciou positivamente a abundância, estrutura em tamanho e fator de condição de P. aff. fasciatus, o que está relacionado à maior disponibilidade de alimento e habitats após o barramento.Research, Society and Development2021-08-05info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://rsdjournal.org/index.php/rsd/article/view/1858210.33448/rsd-v10i10.18582Research, Society and Development; Vol. 10 No. 10; e51101018582Research, Society and Development; Vol. 10 Núm. 10; e51101018582Research, Society and Development; v. 10 n. 10; e511010185822525-3409reponame:Research, Society and Developmentinstname:Universidade Federal de Itajubá (UNIFEI)instacron:UNIFEIporhttps://rsdjournal.org/index.php/rsd/article/view/18582/16578Copyright (c) 2021 Rogério Anderson Druzian; José Rafael Soares Fonseca; Jean Colombari Neto; Tiago Debona; Vinícius Valiente dos Santos; Pedro Rogério Leandro da Silva; Anderson Luís Maciel; Carlos Henrique Orsi; Cleomar Fernandes; Antonio Nogueira dos Reis; Cleodimar Fernandes; Gilmar Baumgartnerhttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessDruzian, Rogério Anderson Fonseca, José Rafael Soares Colombari Neto, Jean Debona, TiagoSantos, Vinícius Valiente dosSilva, Pedro Rogério Leandro da Maciel, Anderson LuísOrsi, Carlos Henrique Fernandes, CleomarReis, Antonio Nogueira dos Fernandes, CleodimarBaumgartner, Gilmar2021-10-02T21:49:16Zoai:ojs.pkp.sfu.ca:article/18582Revistahttps://rsdjournal.org/index.php/rsd/indexPUBhttps://rsdjournal.org/index.php/rsd/oairsd.articles@gmail.com2525-34092525-3409opendoar:2024-01-17T09:38:41.492742Research, Society and Development - Universidade Federal de Itajubá (UNIFEI)false |
dc.title.none.fl_str_mv |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) Pequeña central hidroeléctrica afecta la estructura poblacional del lambari cola roja Psalidodon aff. fasciatus (Cuvier 1819) Pequena central hidrelétrica afeta a estrutura populacional do lambari do rabo vermelho Psalidodon aff. fasciatus (Cuvier 1819) |
title |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) |
spellingShingle |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) Druzian, Rogério Anderson Atividade reprodutiva Captura Fator de condição Ictiofauna. Actividad reproductiva Captura Factor de condición Ictiofauna. Condition factor Reproductive activity Catch Ichthyofauna. |
title_short |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) |
title_full |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) |
title_fullStr |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) |
title_full_unstemmed |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) |
title_sort |
Small hydroelectric power plant affects the population structure of lambari of the red tail Psalidodon aff. fasciatus (Cuvier 1819) |
author |
Druzian, Rogério Anderson |
author_facet |
Druzian, Rogério Anderson Fonseca, José Rafael Soares Colombari Neto, Jean Debona, Tiago Santos, Vinícius Valiente dos Silva, Pedro Rogério Leandro da Maciel, Anderson Luís Orsi, Carlos Henrique Fernandes, Cleomar Reis, Antonio Nogueira dos Fernandes, Cleodimar Baumgartner, Gilmar |
author_role |
author |
author2 |
Fonseca, José Rafael Soares Colombari Neto, Jean Debona, Tiago Santos, Vinícius Valiente dos Silva, Pedro Rogério Leandro da Maciel, Anderson Luís Orsi, Carlos Henrique Fernandes, Cleomar Reis, Antonio Nogueira dos Fernandes, Cleodimar Baumgartner, Gilmar |
author2_role |
author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Druzian, Rogério Anderson Fonseca, José Rafael Soares Colombari Neto, Jean Debona, Tiago Santos, Vinícius Valiente dos Silva, Pedro Rogério Leandro da Maciel, Anderson Luís Orsi, Carlos Henrique Fernandes, Cleomar Reis, Antonio Nogueira dos Fernandes, Cleodimar Baumgartner, Gilmar |
dc.subject.por.fl_str_mv |
Atividade reprodutiva Captura Fator de condição Ictiofauna. Actividad reproductiva Captura Factor de condición Ictiofauna. Condition factor Reproductive activity Catch Ichthyofauna. |
topic |
Atividade reprodutiva Captura Fator de condição Ictiofauna. Actividad reproductiva Captura Factor de condición Ictiofauna. Condition factor Reproductive activity Catch Ichthyofauna. |
description |
Recently in Brazil began to be built small hydroelectric plants on small rivers order to increase energy capacity. The São Francisco real river was barred to form the reservoir of PCH São Francisco. The aim of this work was to verify if the reservoir of PCH São Francisco, changed the population structure of Psalidodon aff. fasciatus. Quarterly samples of fish were held at three sampling sites, with gillnets, in phases before and after the filling of the reservoir. Significant differences were observed in the abundance in the reservoir and downstream sites. In size structure, higher frequency of smaller individuals downstream and into the reservoir. With respect to reproductive activity, there was a reduction of the intensity in the reservoir in the period immediately after the construction of the dam. As for the condition factor in the reservoir and downstream were observed positive changes. Therefore, we conclude that the PCH São Francisco influenced positively the abundance and size structure and the condition factor of P. aff. fasciatus, which is related to the greater availability of food and habitats after the construction of the dam. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-08-05 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/18582 10.33448/rsd-v10i10.18582 |
url |
https://rsdjournal.org/index.php/rsd/article/view/18582 |
identifier_str_mv |
10.33448/rsd-v10i10.18582 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://rsdjournal.org/index.php/rsd/article/view/18582/16578 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Research, Society and Development |
publisher.none.fl_str_mv |
Research, Society and Development |
dc.source.none.fl_str_mv |
Research, Society and Development; Vol. 10 No. 10; e51101018582 Research, Society and Development; Vol. 10 Núm. 10; e51101018582 Research, Society and Development; v. 10 n. 10; e51101018582 2525-3409 reponame:Research, Society and Development instname:Universidade Federal de Itajubá (UNIFEI) instacron:UNIFEI |
instname_str |
Universidade Federal de Itajubá (UNIFEI) |
instacron_str |
UNIFEI |
institution |
UNIFEI |
reponame_str |
Research, Society and Development |
collection |
Research, Society and Development |
repository.name.fl_str_mv |
Research, Society and Development - Universidade Federal de Itajubá (UNIFEI) |
repository.mail.fl_str_mv |
rsd.articles@gmail.com |
_version_ |
1797052685308919808 |