Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil

Detalhes bibliográficos
Autor(a) principal: Agostinho, Carlos Sérgio
Data de Publicação: 2008
Outros Autores: Júlio Junior, Horácio Ferreira
Tipo de documento: Artigo
Idioma: por
Título da fonte: Acta Scientiarum Biological Sciences
Texto Completo: http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2310
Resumo: The building of Itaipu Dam, 150 km downstream from Sete Quedas Falls, resulted in the natural geographical barrier drowning, with subsequent mixing of the fish faunas. Serrasalmus marginatus (Osteichthyes, Serrasalmidae), a species that had been restricted to the river segment downstream from Sete Quedas, invaded the Upper Paraná River. The catching of Serrasalmus spilopleura, a resident species, decreased drastically after the invasion, contrary to S. marginatus, which increased in abundance. In the Piquiri River, where the latter species does not occur, the abundance of S. spilopleura remained high, due to the presence of Nhá Bárbara and Apertado Falls.
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spelling Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, BrazilInvasão da piranha Serrasalmus marginatus Valenciennes, 1847 no alto rio Paraná, Brasil (Osteichthyes, Serrasalmidae)colonizaçãoreservatóriobarreira geográficario Paraná2.00.00.00-6 Ciências BiológicasThe building of Itaipu Dam, 150 km downstream from Sete Quedas Falls, resulted in the natural geographical barrier drowning, with subsequent mixing of the fish faunas. Serrasalmus marginatus (Osteichthyes, Serrasalmidae), a species that had been restricted to the river segment downstream from Sete Quedas, invaded the Upper Paraná River. The catching of Serrasalmus spilopleura, a resident species, decreased drastically after the invasion, contrary to S. marginatus, which increased in abundance. In the Piquiri River, where the latter species does not occur, the abundance of S. spilopleura remained high, due to the presence of Nhá Bárbara and Apertado Falls.A construção da barragem de Itaipu, 150 km a jusante do salto de Sete Quedas, resultou no afogamento da barreira geográfica natural, com conseqüente mistura das ictiofaunas. Serrasalmus marginatus (Osteichthyes, Serrasalmidae), uma espécie que apresentava distribuição restrita ao segmento a jusante de Sete Quedas, invadiu o alto rio Paraná. A captura de Serrasalmus spilopleura, uma espécie residente, diminuiu drasticamente após a invasão, ao contrário de S. marginatus que aumentou em abundância. No rio Piquiri, onde a espécie invasora não ocorreu, a abundância de S. spilopleura permaneceu alta por causa das quedas de Nhá Bárbara e Apertado.Universidade Estadual De Maringá2008-05-13info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/231010.4025/actascibiolsci.v24i0.2310Acta Scientiarum. Biological Sciences; Vol 24 (2002); 391-395Acta Scientiarum. Biological Sciences; v. 24 (2002); 391-3951807-863X1679-9283reponame:Acta Scientiarum Biological Sciencesinstname:Universidade Estadual de Maringá (UEM)instacron:UEMporhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2310/2277Agostinho, Carlos SérgioJúlio Junior, Horácio Ferreirainfo:eu-repo/semantics/openAccess2022-11-23T17:33:23Zoai:periodicos.uem.br/ojs:article/2310Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/oai||actabiol@uem.br1807-863X1679-9283opendoar:2022-11-23T17:33:23Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)false
dc.title.none.fl_str_mv Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
Invasão da piranha Serrasalmus marginatus Valenciennes, 1847 no alto rio Paraná, Brasil (Osteichthyes, Serrasalmidae)
title Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
spellingShingle Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
Agostinho, Carlos Sérgio
colonização
reservatório
barreira geográfica
rio Paraná
2.00.00.00-6 Ciências Biológicas
title_short Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
title_full Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
title_fullStr Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
title_full_unstemmed Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
title_sort Observation of an invasion of the piranha Serrasalmus marginatus Valenciennes, 1847 (Osteichthyes, Serrasalmidae) into the Upper Paraná River, Brazil
author Agostinho, Carlos Sérgio
author_facet Agostinho, Carlos Sérgio
Júlio Junior, Horácio Ferreira
author_role author
author2 Júlio Junior, Horácio Ferreira
author2_role author
dc.contributor.author.fl_str_mv Agostinho, Carlos Sérgio
Júlio Junior, Horácio Ferreira
dc.subject.por.fl_str_mv colonização
reservatório
barreira geográfica
rio Paraná
2.00.00.00-6 Ciências Biológicas
topic colonização
reservatório
barreira geográfica
rio Paraná
2.00.00.00-6 Ciências Biológicas
description The building of Itaipu Dam, 150 km downstream from Sete Quedas Falls, resulted in the natural geographical barrier drowning, with subsequent mixing of the fish faunas. Serrasalmus marginatus (Osteichthyes, Serrasalmidae), a species that had been restricted to the river segment downstream from Sete Quedas, invaded the Upper Paraná River. The catching of Serrasalmus spilopleura, a resident species, decreased drastically after the invasion, contrary to S. marginatus, which increased in abundance. In the Piquiri River, where the latter species does not occur, the abundance of S. spilopleura remained high, due to the presence of Nhá Bárbara and Apertado Falls.
publishDate 2008
dc.date.none.fl_str_mv 2008-05-13
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 http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2310
10.4025/actascibiolsci.v24i0.2310
url http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2310
identifier_str_mv 10.4025/actascibiolsci.v24i0.2310
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv http://www.periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/2310/2277
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Universidade Estadual De Maringá
publisher.none.fl_str_mv Universidade Estadual De Maringá
dc.source.none.fl_str_mv Acta Scientiarum. Biological Sciences; Vol 24 (2002); 391-395
Acta Scientiarum. Biological Sciences; v. 24 (2002); 391-395
1807-863X
1679-9283
reponame:Acta Scientiarum Biological Sciences
instname:Universidade Estadual de Maringá (UEM)
instacron:UEM
instname_str Universidade Estadual de Maringá (UEM)
instacron_str UEM
institution UEM
reponame_str Acta Scientiarum Biological Sciences
collection Acta Scientiarum Biological Sciences
repository.name.fl_str_mv Acta Scientiarum Biological Sciences - Universidade Estadual de Maringá (UEM)
repository.mail.fl_str_mv ||actabiol@uem.br
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