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

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual do Oeste do Paraná - Unioeste-
Autor(es): dc.contributorCompanhia Energética de São Paulo–CESP-
Autor(es): dc.contributorUniversidade Estadual do Oeste do Paraná–UNIOESTE-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual de Mato Grosso do Sul (UEMS)-
Autor(es): dc.creatorSilva, Patricia Sarai da-
Autor(es): dc.creatorCelestino, Leandro Fernandes-
Autor(es): dc.creatorAssumpção, Lucileine de-
Autor(es): dc.creatorMakrakis, Sergio-
Autor(es): dc.creatorDias, João Henrique Pinheiro-
Autor(es): dc.creatorKashiwaqui, Elaine Antoniassi Luiz-
Autor(es): dc.creatorMakrakis, Maristela Cavicchioli-
Data de aceite: dc.date.accessioned2025-08-21T22:13:31Z-
Data de disponibilização: dc.date.available2025-08-21T22:13:31Z-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2023-03-01-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1080/24705357.2020.1762128-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/240812-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/240812-
Descrição: dc.descriptionThe 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.-
Descrição: dc.descriptionGrupo de Pesquisa em Tecnologia em Ecohidráulica e Conservação de Recursos Pesqueiros e Hídricos - GETECH Universidade Estadual do Oeste do Paraná - Unioeste, Paraná State-
Descrição: dc.descriptionSustainability Management Companhia Energética de São Paulo–CESP, São Paulo-
Descrição: dc.descriptionGETECH Universidade Estadual do Oeste do Paraná–UNIOESTE, Paraná State-
Descrição: dc.descriptionEngineering College of Ilha Solteira Department of Biology and Zootechny Fish Ecology Laboratory Universidade Estadual Paulista - UNESP, São Paulo State-
Descrição: dc.descriptionUniversidade Estadual de Mato Grosso do Sul - UEMS, Mato Grosso do Sul-
Descrição: dc.descriptionEngineering College of Ilha Solteira Department of Biology and Zootechny Fish Ecology Laboratory Universidade Estadual Paulista - UNESP, São Paulo State-
Formato: dc.format165-174-
Idioma: dc.languageen-
Relação: dc.relationJournal of Ecohydraulics-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectfish ladder-
Palavras-chave: dc.subjectFish passage-
Palavras-chave: dc.subjectlarvae and eggs-
Palavras-chave: dc.subjectmigration-
Palavras-chave: dc.subjectreservoir residence time-
Título: dc.titleIchthyoplankton drift through fishway in large dam: effect of hydrology, seasonal patterns and larvae condition-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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