Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition

Detalhes bibliográficos
Autor(a) principal: Silva, Patricia Sarai da
Data de Publicação: 2020
Outros Autores: Celestino, Leandro Fernandes, Assumpção, Lucileine de, Makrakis, Sergio, Dias, João Henrique Pinheiro [UNESP], Kashiwaqui, Elaine Antoniassi Luiz, Makrakis, Maristela Cavicchioli
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1080/24705357.2020.1762128
http://hdl.handle.net/11449/240812
Resumo: The seasonal pattern and the composition of downstream drift of fish eggs and larvae through the fish ladder of the Porto Primavera dam, located in the Upper Paraná River, Brazil, were studied. Additionally, the condition of individual larvae with regard to injuries was examined. Samples were collected monthly over three reproductive seasons at upper and lower pools at the twilight (nightfall and dawn). Ichthyoplankton densities were low, especially for eggs, and the downstream passage of fish eggs and larvae through the fish ladder was negatively correlated to water residence time of the reservoir. Highest larvae densities occurred between December and March, with highest densities in February. The ichthyoplankton abundance was similar between sites and times of day, with the predominance of partially damaged larvae (60%). Seventeen taxa were identified, especially non-migratory species. Long-distance migratory species represented less than 1% of the total. Since many migratory species have found favorable habitats for spawning and development in the tributaries of Porto Primavera Reservoir, the dispersion of larvae from these free-flowing tributaries located far from dam through reservoir may not be beneficial for their survival. At the same time, despite the low density and diversity of migratory species larvae drifting downstream from the dam, this fish ladder may have dispersive potential as long as the reservoir displays a shorter water residence time.
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spelling Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae conditionfish ladderFish passagelarvae and eggsmigrationreservoir residence timeThe seasonal pattern and the composition of downstream drift of fish eggs and larvae through the fish ladder of the Porto Primavera dam, located in the Upper Paraná River, Brazil, were studied. Additionally, the condition of individual larvae with regard to injuries was examined. Samples were collected monthly over three reproductive seasons at upper and lower pools at the twilight (nightfall and dawn). Ichthyoplankton densities were low, especially for eggs, and the downstream passage of fish eggs and larvae through the fish ladder was negatively correlated to water residence time of the reservoir. Highest larvae densities occurred between December and March, with highest densities in February. The ichthyoplankton abundance was similar between sites and times of day, with the predominance of partially damaged larvae (60%). Seventeen taxa were identified, especially non-migratory species. Long-distance migratory species represented less than 1% of the total. Since many migratory species have found favorable habitats for spawning and development in the tributaries of Porto Primavera Reservoir, the dispersion of larvae from these free-flowing tributaries located far from dam through reservoir may not be beneficial for their survival. At the same time, despite the low density and diversity of migratory species larvae drifting downstream from the dam, this fish ladder may have dispersive potential as long as the reservoir displays a shorter water residence time.Grupo de Pesquisa em Tecnologia em Ecohidráulica e Conservação de Recursos Pesqueiros e Hídricos - GETECH Universidade Estadual do Oeste do Paraná - Unioeste, Paraná StateSustainability Management Companhia Energética de São Paulo–CESP, São PauloGETECH Universidade Estadual do Oeste do Paraná–UNIOESTE, Paraná StateEngineering College of Ilha Solteira Department of Biology and Zootechny Fish Ecology Laboratory Universidade Estadual Paulista - UNESP, São Paulo StateUniversidade Estadual de Mato Grosso do Sul - UEMS, Mato Grosso do SulEngineering College of Ilha Solteira Department of Biology and Zootechny Fish Ecology Laboratory Universidade Estadual Paulista - UNESP, São Paulo StateUniversidade Estadual do Oeste do Paraná - UnioesteCompanhia Energética de São Paulo–CESPUniversidade Estadual do Oeste do Paraná–UNIOESTEUniversidade Estadual Paulista (UNESP)Universidade Estadual de Mato Grosso do Sul (UEMS)Silva, Patricia Sarai daCelestino, Leandro FernandesAssumpção, Lucileine deMakrakis, SergioDias, João Henrique Pinheiro [UNESP]Kashiwaqui, Elaine Antoniassi LuizMakrakis, Maristela Cavicchioli2023-03-01T20:33:48Z2023-03-01T20:33:48Z2020-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article165-174http://dx.doi.org/10.1080/24705357.2020.1762128Journal of Ecohydraulics, v. 5, n. 2, p. 165-174, 2020.2470-53652470-5357http://hdl.handle.net/11449/24081210.1080/24705357.2020.17621282-s2.0-85111565201Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Ecohydraulicsinfo:eu-repo/semantics/openAccess2024-07-10T14:08:08Zoai:repositorio.unesp.br:11449/240812Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T22:36:38.731527Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
title Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
spellingShingle Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
Silva, Patricia Sarai da
fish ladder
Fish passage
larvae and eggs
migration
reservoir residence time
title_short Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
title_full Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
title_fullStr Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
title_full_unstemmed Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
title_sort Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
author Silva, Patricia Sarai da
author_facet Silva, Patricia Sarai da
Celestino, Leandro Fernandes
Assumpção, Lucileine de
Makrakis, Sergio
Dias, João Henrique Pinheiro [UNESP]
Kashiwaqui, Elaine Antoniassi Luiz
Makrakis, Maristela Cavicchioli
author_role author
author2 Celestino, Leandro Fernandes
Assumpção, Lucileine de
Makrakis, Sergio
Dias, João Henrique Pinheiro [UNESP]
Kashiwaqui, Elaine Antoniassi Luiz
Makrakis, Maristela Cavicchioli
author2_role author
author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual do Oeste do Paraná - Unioeste
Companhia Energética de São Paulo–CESP
Universidade Estadual do Oeste do Paraná–UNIOESTE
Universidade Estadual Paulista (UNESP)
Universidade Estadual de Mato Grosso do Sul (UEMS)
dc.contributor.author.fl_str_mv Silva, Patricia Sarai da
Celestino, Leandro Fernandes
Assumpção, Lucileine de
Makrakis, Sergio
Dias, João Henrique Pinheiro [UNESP]
Kashiwaqui, Elaine Antoniassi Luiz
Makrakis, Maristela Cavicchioli
dc.subject.por.fl_str_mv fish ladder
Fish passage
larvae and eggs
migration
reservoir residence time
topic fish ladder
Fish passage
larvae and eggs
migration
reservoir residence time
description The seasonal pattern and the composition of downstream drift of fish eggs and larvae through the fish ladder of the Porto Primavera dam, located in the Upper Paraná River, Brazil, were studied. Additionally, the condition of individual larvae with regard to injuries was examined. Samples were collected monthly over three reproductive seasons at upper and lower pools at the twilight (nightfall and dawn). Ichthyoplankton densities were low, especially for eggs, and the downstream passage of fish eggs and larvae through the fish ladder was negatively correlated to water residence time of the reservoir. Highest larvae densities occurred between December and March, with highest densities in February. The ichthyoplankton abundance was similar between sites and times of day, with the predominance of partially damaged larvae (60%). Seventeen taxa were identified, especially non-migratory species. Long-distance migratory species represented less than 1% of the total. Since many migratory species have found favorable habitats for spawning and development in the tributaries of Porto Primavera Reservoir, the dispersion of larvae from these free-flowing tributaries located far from dam through reservoir may not be beneficial for their survival. At the same time, despite the low density and diversity of migratory species larvae drifting downstream from the dam, this fish ladder may have dispersive potential as long as the reservoir displays a shorter water residence time.
publishDate 2020
dc.date.none.fl_str_mv 2020-01-01
2023-03-01T20:33:48Z
2023-03-01T20:33:48Z
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/10.1080/24705357.2020.1762128
Journal of Ecohydraulics, v. 5, n. 2, p. 165-174, 2020.
2470-5365
2470-5357
http://hdl.handle.net/11449/240812
10.1080/24705357.2020.1762128
2-s2.0-85111565201
url http://dx.doi.org/10.1080/24705357.2020.1762128
http://hdl.handle.net/11449/240812
identifier_str_mv Journal of Ecohydraulics, v. 5, n. 2, p. 165-174, 2020.
2470-5365
2470-5357
10.1080/24705357.2020.1762128
2-s2.0-85111565201
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Journal of Ecohydraulics
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 165-174
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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