Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir

Detalhes bibliográficos
Autor(a) principal: Sanches,B. O.
Data de Publicação: 2016
Outros Autores: Hughes,R. M., Macedo,D. R., Callisto,M., Santos,G. B.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Biology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842016000100185
Resumo: Abstract We assessed the fish assemblage structure and composition of Nova Ponte Reservoir (Araguari River, Upper Paraná Basin, Brazil). We observed significant differences in abundance (p = 0.0003), richness (p = 0.0005) and diversity (p = 0.02) between lacustrine and riverine zones of the reservoir. Nine species were significantly more abundant in the riverine region: Astyanax altiparanae, Astyanax gr. fasciatus, Galeocharax knerii, Hoplias intermedius, Hypostomus sp., Leporinus friderici, Leporinus obtusidens, Pimelodus maculatus and Schizodon nasutus. The results indicated a longitudinal gradient in the composition and abundance of fishes in Nova Ponte Reservoir, reinforcing the importance of freely flowing riverine reaches for conserving native neotropical ichthyofauna and reflecting the strong adaptation of these species to riverine systems.
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spelling Spatial variations in fish assemblage structure in a southeastern Brazilian reservoirfish communityUpper Paraná River Basinspatial gradientAbstract We assessed the fish assemblage structure and composition of Nova Ponte Reservoir (Araguari River, Upper Paraná Basin, Brazil). We observed significant differences in abundance (p = 0.0003), richness (p = 0.0005) and diversity (p = 0.02) between lacustrine and riverine zones of the reservoir. Nine species were significantly more abundant in the riverine region: Astyanax altiparanae, Astyanax gr. fasciatus, Galeocharax knerii, Hoplias intermedius, Hypostomus sp., Leporinus friderici, Leporinus obtusidens, Pimelodus maculatus and Schizodon nasutus. The results indicated a longitudinal gradient in the composition and abundance of fishes in Nova Ponte Reservoir, reinforcing the importance of freely flowing riverine reaches for conserving native neotropical ichthyofauna and reflecting the strong adaptation of these species to riverine systems.Instituto Internacional de Ecologia2016-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842016000100185Brazilian Journal of Biology v.76 n.1 2016reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/1519-6984.16614info:eu-repo/semantics/openAccessSanches,B. O.Hughes,R. M.Macedo,D. R.Callisto,M.Santos,G. B.eng2016-02-19T00:00:00Zoai:scielo:S1519-69842016000100185Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2016-02-19T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false
dc.title.none.fl_str_mv Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
title Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
spellingShingle Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
Sanches,B. O.
fish community
Upper Paraná River Basin
spatial gradient
title_short Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
title_full Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
title_fullStr Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
title_full_unstemmed Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
title_sort Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir
author Sanches,B. O.
author_facet Sanches,B. O.
Hughes,R. M.
Macedo,D. R.
Callisto,M.
Santos,G. B.
author_role author
author2 Hughes,R. M.
Macedo,D. R.
Callisto,M.
Santos,G. B.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Sanches,B. O.
Hughes,R. M.
Macedo,D. R.
Callisto,M.
Santos,G. B.
dc.subject.por.fl_str_mv fish community
Upper Paraná River Basin
spatial gradient
topic fish community
Upper Paraná River Basin
spatial gradient
description Abstract We assessed the fish assemblage structure and composition of Nova Ponte Reservoir (Araguari River, Upper Paraná Basin, Brazil). We observed significant differences in abundance (p = 0.0003), richness (p = 0.0005) and diversity (p = 0.02) between lacustrine and riverine zones of the reservoir. Nine species were significantly more abundant in the riverine region: Astyanax altiparanae, Astyanax gr. fasciatus, Galeocharax knerii, Hoplias intermedius, Hypostomus sp., Leporinus friderici, Leporinus obtusidens, Pimelodus maculatus and Schizodon nasutus. The results indicated a longitudinal gradient in the composition and abundance of fishes in Nova Ponte Reservoir, reinforcing the importance of freely flowing riverine reaches for conserving native neotropical ichthyofauna and reflecting the strong adaptation of these species to riverine systems.
publishDate 2016
dc.date.none.fl_str_mv 2016-02-01
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=S1519-69842016000100185
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842016000100185
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/1519-6984.16614
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 Internacional de Ecologia
publisher.none.fl_str_mv Instituto Internacional de Ecologia
dc.source.none.fl_str_mv Brazilian Journal of Biology v.76 n.1 2016
reponame:Brazilian Journal of Biology
instname:Instituto Internacional de Ecologia (IIE)
instacron:IIE
instname_str Instituto Internacional de Ecologia (IIE)
instacron_str IIE
institution IIE
reponame_str Brazilian Journal of Biology
collection Brazilian Journal of Biology
repository.name.fl_str_mv Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)
repository.mail.fl_str_mv bjb@bjb.com.br||bjb@bjb.com.br
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