Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil

Detalhes bibliográficos
Autor(a) principal: Saccol-Pereira,Adriana
Data de Publicação: 2010
Outros Autores: Fialho,Clarice B.
Tipo de documento: Relatório
Idioma: eng
Título da fonte: Iheringia. Série Zoologia
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000200013
Resumo: The objective of this study was to identify the patterns of seasonal and diel variation and the most important abiotic factors that influence variation in the fish assemblage of the Delta of the Jacuí River in southern Brazil. Seventy-two samples were collected over a one year period. Water temperature was the abiotic factor with the greatest influence on the distribution of the assemblage. The structure of the assemblage exhibited significant changes in terms of species abundance and biomass during the year, with the greatest abundance and biomass being observed during the autumn. There was no significant difference between day and night in terms of abundance, but biomass was significantly greater during the night than during the day.
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spelling Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern BrazilFish ecologyfreshwater fishbiological rhythmcircadian rhythmPatos LagoonThe objective of this study was to identify the patterns of seasonal and diel variation and the most important abiotic factors that influence variation in the fish assemblage of the Delta of the Jacuí River in southern Brazil. Seventy-two samples were collected over a one year period. Water temperature was the abiotic factor with the greatest influence on the distribution of the assemblage. The structure of the assemblage exhibited significant changes in terms of species abundance and biomass during the year, with the greatest abundance and biomass being observed during the autumn. There was no significant difference between day and night in terms of abundance, but biomass was significantly greater during the night than during the day.Museu de Ciências Naturais2010-06-01info:eu-repo/semantics/reportinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000200013Iheringia. Série Zoologia v.100 n.2 2010reponame:Iheringia. Série Zoologiainstname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)instacron:FZB/RS10.1590/S0073-47212010000200013info:eu-repo/semantics/openAccessSaccol-Pereira,AdrianaFialho,Clarice B.eng2010-08-20T00:00:00Zoai:scielo:S0073-47212010000200013Revistahttp://www.scielo.br/iszPUBhttps://old.scielo.br/oai/scielo-oai.php||iheringia-zoo@fzb.rs.gov.br1678-47660073-4721opendoar:2010-08-20T00:00Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)false
dc.title.none.fl_str_mv Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
title Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
spellingShingle Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
Saccol-Pereira,Adriana
Fish ecology
freshwater fish
biological rhythm
circadian rhythm
Patos Lagoon
title_short Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
title_full Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
title_fullStr Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
title_full_unstemmed Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
title_sort Seasonal and diel variation in the fish assemblage of a Neotropical delta in southern Brazil
author Saccol-Pereira,Adriana
author_facet Saccol-Pereira,Adriana
Fialho,Clarice B.
author_role author
author2 Fialho,Clarice B.
author2_role author
dc.contributor.author.fl_str_mv Saccol-Pereira,Adriana
Fialho,Clarice B.
dc.subject.por.fl_str_mv Fish ecology
freshwater fish
biological rhythm
circadian rhythm
Patos Lagoon
topic Fish ecology
freshwater fish
biological rhythm
circadian rhythm
Patos Lagoon
description The objective of this study was to identify the patterns of seasonal and diel variation and the most important abiotic factors that influence variation in the fish assemblage of the Delta of the Jacuí River in southern Brazil. Seventy-two samples were collected over a one year period. Water temperature was the abiotic factor with the greatest influence on the distribution of the assemblage. The structure of the assemblage exhibited significant changes in terms of species abundance and biomass during the year, with the greatest abundance and biomass being observed during the autumn. There was no significant difference between day and night in terms of abundance, but biomass was significantly greater during the night than during the day.
publishDate 2010
dc.date.none.fl_str_mv 2010-06-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/report
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format report
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000200013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000200013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0073-47212010000200013
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 Museu de Ciências Naturais
publisher.none.fl_str_mv Museu de Ciências Naturais
dc.source.none.fl_str_mv Iheringia. Série Zoologia v.100 n.2 2010
reponame:Iheringia. Série Zoologia
instname:Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
instacron:FZB/RS
instname_str Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
instacron_str FZB/RS
institution FZB/RS
reponame_str Iheringia. Série Zoologia
collection Iheringia. Série Zoologia
repository.name.fl_str_mv Iheringia. Série Zoologia - Fundação Zoobotânica do Rio Grande do Sul (FZB/RS)
repository.mail.fl_str_mv ||iheringia-zoo@fzb.rs.gov.br
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