Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Neotropical ichthyology (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500208 |
Resumo: | ABSTRACT The Paraíba do Sul River is affected by extensive water collection for supply, organic and industrial pollution, and dams. Nonetheless, the ichthyofauna maintains biodiversity and sustains artisanal fisheries. This study analyzes the composition, abundance and distribution of fish larvae, an important approach to determine the reproductive period and spawning sites. The sampling occurred from August 2011 through February 2013 in five sites at a transect between the banks on the lower reach of the Paraíba do Sul River. A total of 5,412 larvae belonging to 20 taxa was captured. The predominant order was Characiformes. Larvae of Prochilodus spp. and Leporinus spp. were the most abundant; larvae of Brycon insignis, an endangered species, were present. Fewer larvae were collected in the second reproductive cycle during a severe drought. The absence of eggs indicates that the study area is not used for spawning, and highlights the need for studies in the main channel and in the tributaries of the Paraíba do Sul River. Fish larvae need to have access to the marginal lagoons along the lower stretch of the river, an area which is the object of disputes between fishermen and farmers. |
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Neotropical ichthyology (Online) |
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Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul RiverDroughtEggs and larvaeMigratory speciesReproductive periodSpawning areaABSTRACT The Paraíba do Sul River is affected by extensive water collection for supply, organic and industrial pollution, and dams. Nonetheless, the ichthyofauna maintains biodiversity and sustains artisanal fisheries. This study analyzes the composition, abundance and distribution of fish larvae, an important approach to determine the reproductive period and spawning sites. The sampling occurred from August 2011 through February 2013 in five sites at a transect between the banks on the lower reach of the Paraíba do Sul River. A total of 5,412 larvae belonging to 20 taxa was captured. The predominant order was Characiformes. Larvae of Prochilodus spp. and Leporinus spp. were the most abundant; larvae of Brycon insignis, an endangered species, were present. Fewer larvae were collected in the second reproductive cycle during a severe drought. The absence of eggs indicates that the study area is not used for spawning, and highlights the need for studies in the main channel and in the tributaries of the Paraíba do Sul River. Fish larvae need to have access to the marginal lagoons along the lower stretch of the river, an area which is the object of disputes between fishermen and farmers.Sociedade Brasileira de Ictiologia2019-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500208Neotropical Ichthyology v.17 n.4 2019reponame:Neotropical ichthyology (Online)instname:Sociedade Brasileira de Ictiologia (SBI)instacron:SBI10.1590/1982-0224-20180004info:eu-repo/semantics/openAccessTeixeira,Gabriel E.Bialetzki,AndréaSoares,Bruno E.Souza,GuilhermeCaramaschi,Érica P.eng2019-12-05T00:00:00Zoai:scielo:S1679-62252019000500208Revistahttp://www.ufrgs.br/ni/https://old.scielo.br/oai/scielo-oai.php||neoichth@nupelia.uem.br1982-02241679-6225opendoar:2019-12-05T00:00Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI)false |
dc.title.none.fl_str_mv |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River |
title |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River |
spellingShingle |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River Teixeira,Gabriel E. Drought Eggs and larvae Migratory species Reproductive period Spawning area |
title_short |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River |
title_full |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River |
title_fullStr |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River |
title_full_unstemmed |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River |
title_sort |
Variation in the structure of the ichthyoplankton community in the lower Paraíba do Sul River |
author |
Teixeira,Gabriel E. |
author_facet |
Teixeira,Gabriel E. Bialetzki,Andréa Soares,Bruno E. Souza,Guilherme Caramaschi,Érica P. |
author_role |
author |
author2 |
Bialetzki,Andréa Soares,Bruno E. Souza,Guilherme Caramaschi,Érica P. |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Teixeira,Gabriel E. Bialetzki,Andréa Soares,Bruno E. Souza,Guilherme Caramaschi,Érica P. |
dc.subject.por.fl_str_mv |
Drought Eggs and larvae Migratory species Reproductive period Spawning area |
topic |
Drought Eggs and larvae Migratory species Reproductive period Spawning area |
description |
ABSTRACT The Paraíba do Sul River is affected by extensive water collection for supply, organic and industrial pollution, and dams. Nonetheless, the ichthyofauna maintains biodiversity and sustains artisanal fisheries. This study analyzes the composition, abundance and distribution of fish larvae, an important approach to determine the reproductive period and spawning sites. The sampling occurred from August 2011 through February 2013 in five sites at a transect between the banks on the lower reach of the Paraíba do Sul River. A total of 5,412 larvae belonging to 20 taxa was captured. The predominant order was Characiformes. Larvae of Prochilodus spp. and Leporinus spp. were the most abundant; larvae of Brycon insignis, an endangered species, were present. Fewer larvae were collected in the second reproductive cycle during a severe drought. The absence of eggs indicates that the study area is not used for spawning, and highlights the need for studies in the main channel and in the tributaries of the Paraíba do Sul River. Fish larvae need to have access to the marginal lagoons along the lower stretch of the river, an area which is the object of disputes between fishermen and farmers. |
publishDate |
2019 |
dc.date.none.fl_str_mv |
2019-01-01 |
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=S1679-62252019000500208 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000500208 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1982-0224-20180004 |
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 |
Sociedade Brasileira de Ictiologia |
publisher.none.fl_str_mv |
Sociedade Brasileira de Ictiologia |
dc.source.none.fl_str_mv |
Neotropical Ichthyology v.17 n.4 2019 reponame:Neotropical ichthyology (Online) instname:Sociedade Brasileira de Ictiologia (SBI) instacron:SBI |
instname_str |
Sociedade Brasileira de Ictiologia (SBI) |
instacron_str |
SBI |
institution |
SBI |
reponame_str |
Neotropical ichthyology (Online) |
collection |
Neotropical ichthyology (Online) |
repository.name.fl_str_mv |
Neotropical ichthyology (Online) - Sociedade Brasileira de Ictiologia (SBI) |
repository.mail.fl_str_mv |
||neoichth@nupelia.uem.br |
_version_ |
1752122183154401280 |