Fish passages in South America: an overview of studied facilities and research effort
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFLA |
Texto Completo: | http://repositorio.ufla.br/jspui/handle/1/31782 |
Resumo: | River regulation has fragmented fluvial ecosystems in South America, affecting fish migration and dispersion dynamics. In response, authorities have installed fish passage facilities (FPF) to mitigate impacts. However, little is known about the geographical distribution of these facilities, and no synthesis of the research effort applied to understanding their functioning and limitations exists. To address this issue, our study gathered the available scientific literature about fishways in South America to provide an overview of studied FPF and associated research effort. We found 80 studies that investigated 25 FPF, mostly ladders installed in the upper reaches of large rivers, particularly in the Paraná River Basin. One important finding is that most facilities do not lead to upstream and/or downstream sites due to the presence of other dams with no FPF. Though the number of studies has increased over the past 10 years, there is no consistent trend towards increased research effort. Overall, studies have focused on the fishway itself (i.e. upstream passage), and rarely evaluated broader issues (i.e. habitat distribution, population dynamics, conservation and management success). Our research therefore identified technical limitations of past studies, and revealed important gaps in the knowledge of FPF as a management tool. |
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Fish passages in South America: an overview of studied facilities and research effortConservationDamFishwayImpactManagementFish passageFish passage facilities (FPF)ConservaçãoBarragensGestãoImpactoPassagens de peixesSistema de Transposição de Peixes (STP)River regulation has fragmented fluvial ecosystems in South America, affecting fish migration and dispersion dynamics. In response, authorities have installed fish passage facilities (FPF) to mitigate impacts. However, little is known about the geographical distribution of these facilities, and no synthesis of the research effort applied to understanding their functioning and limitations exists. To address this issue, our study gathered the available scientific literature about fishways in South America to provide an overview of studied FPF and associated research effort. We found 80 studies that investigated 25 FPF, mostly ladders installed in the upper reaches of large rivers, particularly in the Paraná River Basin. One important finding is that most facilities do not lead to upstream and/or downstream sites due to the presence of other dams with no FPF. Though the number of studies has increased over the past 10 years, there is no consistent trend towards increased research effort. Overall, studies have focused on the fishway itself (i.e. upstream passage), and rarely evaluated broader issues (i.e. habitat distribution, population dynamics, conservation and management success). Our research therefore identified technical limitations of past studies, and revealed important gaps in the knowledge of FPF as a management tool.A implantação de barragens tem perturbado e fragmentado os ecossistemas fluviais da América do Sul, afetando a migração dos peixes e dinâmicas de dispersão. Sistemas de transposição de peixes (STPs) têm sido instalados na tentativa de atenuar esses impactos. No entanto, pouco se sabe sobre a distribuição geográfica desses dispositivos, bem como o esforço de pesquisa aplicado para entender seu funcionamento e limitações. Nosso trabalho reuniu a literatura disponível com a finalidade de fornecer um panorama sobre os mecanismos investigados na América do Sul, bem como revelar o esforço e perfil das pesquisas. Encontramos 80 estudos que investigaram 25 STPs, a maioria escadas instaladas nos trechos superiores de grandes rios, particularmente na bacia do rio Paraná. Um resultado interessante é que a maior parte dos STPs está desconectada de trechos a montante e jusante devido à presença de outras barragens sem STPs. Embora o número de estudos tenha aumentado na última década, não registramos tendência consistente de incremento ao longo dos anos. No geral, os estudos abordam aspectos do próprio STP, especificamente a passagem ascendente, ignorando temas mais abrangentes (i.e. distribuição de habitats, dinâmica populacional). Além disso, o foco da pesquisa se direciona especialmente às questões de eficiência da passagem e raramente ao contexto da conservação e sucesso do manejo. Nossa avaliação, portanto, indicou que os estudos pretéritos são tecnicamente limitados, revelando importantes lacunas sobre o conhecimento dos STPs como medida de manejo.Universidade Estadual de Maringá (UEM)2018-11-17T10:47:53Z2018-11-17T10:47:53Z2017info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfLIRA, N. A. et al. Fish passages in South America: an overview of studied facilities and research effort. Neotropical Ichthyology, Maringá, v. 15, n. 2, 2017.http://repositorio.ufla.br/jspui/handle/1/31782Neotropical Ichthyologyreponame:Repositório Institucional da UFLAinstname:Universidade Federal de Lavras (UFLA)instacron:UFLAhttp://creativecommons.org/licenses/by/4.0/info:eu-repo/semantics/openAccessLira, Nibelle A.Pompeu, Paulo S.Agostinho, Carlos S.Agostinho, Angelo A.Arcifa, Marlene SofiaPelicice, Fernando M.eng2018-11-17T10:47:53Zoai:localhost:1/31782Repositório InstitucionalPUBhttp://repositorio.ufla.br/oai/requestnivaldo@ufla.br || repositorio.biblioteca@ufla.bropendoar:2018-11-17T10:47:53Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA)false |
dc.title.none.fl_str_mv |
Fish passages in South America: an overview of studied facilities and research effort |
title |
Fish passages in South America: an overview of studied facilities and research effort |
spellingShingle |
Fish passages in South America: an overview of studied facilities and research effort Lira, Nibelle A. Conservation Dam Fishway Impact Management Fish passage Fish passage facilities (FPF) Conservação Barragens Gestão Impacto Passagens de peixes Sistema de Transposição de Peixes (STP) |
title_short |
Fish passages in South America: an overview of studied facilities and research effort |
title_full |
Fish passages in South America: an overview of studied facilities and research effort |
title_fullStr |
Fish passages in South America: an overview of studied facilities and research effort |
title_full_unstemmed |
Fish passages in South America: an overview of studied facilities and research effort |
title_sort |
Fish passages in South America: an overview of studied facilities and research effort |
author |
Lira, Nibelle A. |
author_facet |
Lira, Nibelle A. Pompeu, Paulo S. Agostinho, Carlos S. Agostinho, Angelo A. Arcifa, Marlene Sofia Pelicice, Fernando M. |
author_role |
author |
author2 |
Pompeu, Paulo S. Agostinho, Carlos S. Agostinho, Angelo A. Arcifa, Marlene Sofia Pelicice, Fernando M. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Lira, Nibelle A. Pompeu, Paulo S. Agostinho, Carlos S. Agostinho, Angelo A. Arcifa, Marlene Sofia Pelicice, Fernando M. |
dc.subject.por.fl_str_mv |
Conservation Dam Fishway Impact Management Fish passage Fish passage facilities (FPF) Conservação Barragens Gestão Impacto Passagens de peixes Sistema de Transposição de Peixes (STP) |
topic |
Conservation Dam Fishway Impact Management Fish passage Fish passage facilities (FPF) Conservação Barragens Gestão Impacto Passagens de peixes Sistema de Transposição de Peixes (STP) |
description |
River regulation has fragmented fluvial ecosystems in South America, affecting fish migration and dispersion dynamics. In response, authorities have installed fish passage facilities (FPF) to mitigate impacts. However, little is known about the geographical distribution of these facilities, and no synthesis of the research effort applied to understanding their functioning and limitations exists. To address this issue, our study gathered the available scientific literature about fishways in South America to provide an overview of studied FPF and associated research effort. We found 80 studies that investigated 25 FPF, mostly ladders installed in the upper reaches of large rivers, particularly in the Paraná River Basin. One important finding is that most facilities do not lead to upstream and/or downstream sites due to the presence of other dams with no FPF. Though the number of studies has increased over the past 10 years, there is no consistent trend towards increased research effort. Overall, studies have focused on the fishway itself (i.e. upstream passage), and rarely evaluated broader issues (i.e. habitat distribution, population dynamics, conservation and management success). Our research therefore identified technical limitations of past studies, and revealed important gaps in the knowledge of FPF as a management tool. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017 2018-11-17T10:47:53Z 2018-11-17T10:47:53Z |
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 |
LIRA, N. A. et al. Fish passages in South America: an overview of studied facilities and research effort. Neotropical Ichthyology, Maringá, v. 15, n. 2, 2017. http://repositorio.ufla.br/jspui/handle/1/31782 |
identifier_str_mv |
LIRA, N. A. et al. Fish passages in South America: an overview of studied facilities and research effort. Neotropical Ichthyology, Maringá, v. 15, n. 2, 2017. |
url |
http://repositorio.ufla.br/jspui/handle/1/31782 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
http://creativecommons.org/licenses/by/4.0/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
http://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 |
Universidade Estadual de Maringá (UEM) |
publisher.none.fl_str_mv |
Universidade Estadual de Maringá (UEM) |
dc.source.none.fl_str_mv |
Neotropical Ichthyology reponame:Repositório Institucional da UFLA instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Repositório Institucional da UFLA |
collection |
Repositório Institucional da UFLA |
repository.name.fl_str_mv |
Repositório Institucional da UFLA - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
nivaldo@ufla.br || repositorio.biblioteca@ufla.br |
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1784550065793138688 |