Seasonal and diel changes in fish distribution in a tropical hydropower plant tailrace: evidence from hydroacoustic and gillnet sampling

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorLoures, R. C.-
Autor(es): dc.creatorPompeu, P. S.-
Data de aceite: dc.date.accessioned2026-02-09T11:56:17Z-
Data de disponibilização: dc.date.available2026-02-09T11:56:17Z-
Data de envio: dc.date.issued2020-04-02-
Data de envio: dc.date.issued2020-04-02-
Data de envio: dc.date.issued2015-06-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br/handle/1/39660-
Fonte completa do material: dc.identifierhttps://onlinelibrary.wiley.com/doi/abs/10.1111/fme.12116-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1150753-
Descrição: dc.descriptionHydropower plant operation can lead to direct impacts on fish near the dam, causing injuries and death. In Brazil, it is more common to observe these impacts in the tailrace. To understand temporal and spatial variations in fish abundance in the tailrace, to assist plant operation management, surveys were performed in Três Marias Hydropower Plant using hydroacoustics and multimesh gillnets. Data were collected in the tailrace backwater over 1 year, during 18 field trips, each covering a 24‐h cycle with six sampling intervals. A greater abundance of fish was found in the tailrace during the wet season, mainly explained by total discharge. More fish were detected by hydroacoustics and gill nets during night sampling. Siluriformes, which are known to exhibit nocturnal habits, were the predominant species in both dry and wet seasons. Thus, damaging operational procedures for fish should be planned in the dry season, low‐abundance period.-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceFisheries Management and Ecology-
Palavras-chave: dc.subjectEcho sounding-
Palavras-chave: dc.subjectHydropower plant impact-
Palavras-chave: dc.subjectIchthyofauna-
Palavras-chave: dc.subjectSão Francisco river (Brazil)-
Título: dc.titleSeasonal and diel changes in fish distribution in a tropical hydropower plant tailrace: evidence from hydroacoustic and gillnet sampling-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

Não existem arquivos associados a este item.