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: | Biota Neotropica |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032021000400208 |
Resumo: | Abstract: We investigated spatial and temporal variations in the distribution of fish eggs and larvae in the Guareí River, a free-flowing tributary located in the upper section of the Jurumirim Reservoir, Paranapanema River, Brazil. Fish eggs and larvae were sampled ~ 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 Guareí River. We collected 859 fish eggs and 1,340 larvae, comprising 19 taxa. We found reproductive activity of several fish species in the Guareí 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 Guareí 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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Biota Neotropica |
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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 lineatusAbstract: We investigated spatial and temporal variations in the distribution of fish eggs and larvae in the Guareí River, a free-flowing tributary located in the upper section of the Jurumirim Reservoir, Paranapanema River, Brazil. Fish eggs and larvae were sampled ~ 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 Guareí River. We collected 859 fish eggs and 1,340 larvae, comprising 19 taxa. We found reproductive activity of several fish species in the Guareí 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 Guareí 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.Instituto Virtual da Biodiversidade | BIOTA - FAPESP2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032021000400208Biota Neotropica v.21 n.4 2021reponame:Biota Neotropicainstname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP)instacron:BIOTA - FAPESP10.1590/1676-0611-bn-2021-1227info:eu-repo/semantics/openAccessAzevedo-Santos,Valter M.Daga,Vanessa S.Pelicice,Fernando M.Henry,Raouleng2021-12-17T00:00:00Zoai:scielo:S1676-06032021000400208Revistahttps://www.biotaneotropica.org.br/v20n1/pt/https://old.scielo.br/oai/scielo-oai.php||juliosa@unifap.br1676-06111676-0611opendoar:2021-12-17T00:00Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP)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. 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. |
author_facet |
Azevedo-Santos,Valter M. Daga,Vanessa S. Pelicice,Fernando M. Henry,Raoul |
author_role |
author |
author2 |
Daga,Vanessa S. Pelicice,Fernando M. Henry,Raoul |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Azevedo-Santos,Valter M. Daga,Vanessa S. Pelicice,Fernando M. Henry,Raoul |
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 |
Abstract: We investigated spatial and temporal variations in the distribution of fish eggs and larvae in the Guareí River, a free-flowing tributary located in the upper section of the Jurumirim Reservoir, Paranapanema River, Brazil. Fish eggs and larvae were sampled ~ 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 Guareí River. We collected 859 fish eggs and 1,340 larvae, comprising 19 taxa. We found reproductive activity of several fish species in the Guareí 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 Guareí 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 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032021000400208 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032021000400208 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1676-0611-bn-2021-1227 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Instituto Virtual da Biodiversidade | BIOTA - FAPESP |
publisher.none.fl_str_mv |
Instituto Virtual da Biodiversidade | BIOTA - FAPESP |
dc.source.none.fl_str_mv |
Biota Neotropica v.21 n.4 2021 reponame:Biota Neotropica instname:Instituto Virtual da Biodiversidade (BIOTA-FAPESP) instacron:BIOTA - FAPESP |
instname_str |
Instituto Virtual da Biodiversidade (BIOTA-FAPESP) |
instacron_str |
BIOTA - FAPESP |
institution |
BIOTA - FAPESP |
reponame_str |
Biota Neotropica |
collection |
Biota Neotropica |
repository.name.fl_str_mv |
Biota Neotropica - Instituto Virtual da Biodiversidade (BIOTA-FAPESP) |
repository.mail.fl_str_mv |
||juliosa@unifap.br |
_version_ |
1754575902106189824 |