Ichthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition
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/10.1080/24705357.2020.1762128 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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Repositório Institucional da UNESP |
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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 |
|
_version_ |
1808129442622472192 |