Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/1676-0611-BN-2021-1227 http://hdl.handle.net/11449/218947 |
Resumo: | We investigated spatial and temporal variations in the distribution of fish eggs and larvae in the Guarei River, a free-flowing tributary located in the upper section of the Jurumirim Reservoir, Paranapanema River, Brazil. Fish eggs and larvae were sampled similar to fortnightly from November 2017 to March 2018 (Cycle 1), and from November 2018 to March 2019 (Cycle 2), at three sites distributed along the entire course of the Guarei River. We collected 859 fish eggs and 1,340 larvae, comprising 19 taxa. We found reproductive activity of several fish species in the Guarei River, including long-distance migrants. However, there was no spatial differences in the assemblage structure and densities of fish eggs and larvae along the channel of Guarei River. We recorded temporal differences in larvae density only in Cycle 2. The consistent capture of fish eggs and larvae in two reproductive cycles is strong evidence that this river is a spawning site for a variety of fish species. Thus, we recommend maintaining its natural flow regime. |
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spelling |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoirFish reproductionIchthyoplanktonJurumirim ReservoirMigratory fishProchilodus lineatusWe investigated spatial and temporal variations in the distribution of fish eggs and larvae in the Guarei River, a free-flowing tributary located in the upper section of the Jurumirim Reservoir, Paranapanema River, Brazil. Fish eggs and larvae were sampled similar to fortnightly from November 2017 to March 2018 (Cycle 1), and from November 2018 to March 2019 (Cycle 2), at three sites distributed along the entire course of the Guarei River. We collected 859 fish eggs and 1,340 larvae, comprising 19 taxa. We found reproductive activity of several fish species in the Guarei River, including long-distance migrants. However, there was no spatial differences in the assemblage structure and densities of fish eggs and larvae along the channel of Guarei River. We recorded temporal differences in larvae density only in Cycle 2. The consistent capture of fish eggs and larvae in two reproductive cycles is strong evidence that this river is a spawning site for a variety of fish species. Thus, we recommend maintaining its natural flow regime.Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)Univ Estadual Paulista, Inst Biociencias, BR-18618687 Botucatu, SP, BrazilUniv Fed Parana, Setor Tecnol, Dept Engn Ambiental, Lab Ecol & Conservacao, BR-81531970 Curitiba, Parana, BrazilUniv Fed Tocantins, Nucleo Estudos Ambientais, BR-77500000 Porto Nacional, TO, BrazilUniv Estadual Paulista, Inst Biociencias, BR-18618687 Botucatu, SP, BrazilCAPES: -001Revista Biota NeotropicaUniversidade Estadual Paulista (UNESP)Univ Fed ParanaUniv Fed TocantinsAzevedo-Santos, Valter M. [UNESP]Daga, Vanessa S.Pelicice, Fernando M.Henry, Raoul [UNESP]2022-04-28T17:30:35Z2022-04-28T17:30:35Z2021-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10http://dx.doi.org/10.1590/1676-0611-BN-2021-1227Biota Neotropica. Campinas: Revista Biota Neotropica, v. 21, n. 4, 10 p., 2021.1676-0603http://hdl.handle.net/11449/21894710.1590/1676-0611-BN-2021-1227WOS:000739857900001Web of Sciencereponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBiota Neotropicainfo:eu-repo/semantics/openAccess2022-04-28T17:30:35Zoai:repositorio.unesp.br:11449/218947Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462022-04-28T17:30:35Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir |
title |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir |
spellingShingle |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir Azevedo-Santos, Valter M. [UNESP] Fish reproduction Ichthyoplankton Jurumirim Reservoir Migratory fish Prochilodus lineatus |
title_short |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir |
title_full |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir |
title_fullStr |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir |
title_full_unstemmed |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir |
title_sort |
Drifting in a free-flowing river: Distribution of fish eggs and larvae in a small tributary of a Neotropical reservoir |
author |
Azevedo-Santos, Valter M. [UNESP] |
author_facet |
Azevedo-Santos, Valter M. [UNESP] Daga, Vanessa S. Pelicice, Fernando M. Henry, Raoul [UNESP] |
author_role |
author |
author2 |
Daga, Vanessa S. Pelicice, Fernando M. Henry, Raoul [UNESP] |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Univ Fed Parana Univ Fed Tocantins |
dc.contributor.author.fl_str_mv |
Azevedo-Santos, Valter M. [UNESP] Daga, Vanessa S. Pelicice, Fernando M. Henry, Raoul [UNESP] |
dc.subject.por.fl_str_mv |
Fish reproduction Ichthyoplankton Jurumirim Reservoir Migratory fish Prochilodus lineatus |
topic |
Fish reproduction Ichthyoplankton Jurumirim Reservoir Migratory fish Prochilodus lineatus |
description |
We investigated spatial and temporal variations in the distribution of fish eggs and larvae in the Guarei River, a free-flowing tributary located in the upper section of the Jurumirim Reservoir, Paranapanema River, Brazil. Fish eggs and larvae were sampled similar to fortnightly from November 2017 to March 2018 (Cycle 1), and from November 2018 to March 2019 (Cycle 2), at three sites distributed along the entire course of the Guarei River. We collected 859 fish eggs and 1,340 larvae, comprising 19 taxa. We found reproductive activity of several fish species in the Guarei River, including long-distance migrants. However, there was no spatial differences in the assemblage structure and densities of fish eggs and larvae along the channel of Guarei River. We recorded temporal differences in larvae density only in Cycle 2. The consistent capture of fish eggs and larvae in two reproductive cycles is strong evidence that this river is a spawning site for a variety of fish species. Thus, we recommend maintaining its natural flow regime. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 2022-04-28T17:30:35Z 2022-04-28T17:30:35Z |
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/10.1590/1676-0611-BN-2021-1227 Biota Neotropica. Campinas: Revista Biota Neotropica, v. 21, n. 4, 10 p., 2021. 1676-0603 http://hdl.handle.net/11449/218947 10.1590/1676-0611-BN-2021-1227 WOS:000739857900001 |
url |
http://dx.doi.org/10.1590/1676-0611-BN-2021-1227 http://hdl.handle.net/11449/218947 |
identifier_str_mv |
Biota Neotropica. Campinas: Revista Biota Neotropica, v. 21, n. 4, 10 p., 2021. 1676-0603 10.1590/1676-0611-BN-2021-1227 WOS:000739857900001 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Biota Neotropica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
10 |
dc.publisher.none.fl_str_mv |
Revista Biota Neotropica |
publisher.none.fl_str_mv |
Revista Biota Neotropica |
dc.source.none.fl_str_mv |
Web of Science 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_ |
1797789485751074816 |