Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil

Detalhes bibliográficos
Autor(a) principal: Montenegro,AKA
Data de Publicação: 2012
Outros Autores: Torelli,JER, Crispim,MC, Hernández,MIM, Medeiros,AMA
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=S1519-69842012000100013
Resumo: To determine the fish species present in Taperoá II Reservoir, and their relevance to the local economy, this research aimed to evaluate the composition, abundance, degree of dominance and constancy of species, along with diversity, richness, evenness and similarity indices in a tropical semi-arid fish assemblage, during one year. Six 24 hour-long samplings were carried out between October 2005 and October 2006 using cast, seine and gillnets. The 889 collected individuals belonged to 11 species from 9 families. Temporal variation was observed in the capture frequency of different species, and a significant negative correlation between precipitation and number of individuals was also observed. Among the recorded families, Characidae showed a higher frequency of occurrence (38.4%), mostly due to Astyanax bimaculatus (Linnaeus, 1758) and A. fasciatus (Cuvier, 1819). Eight species were categorised as constant, two as accessory and one as accidental. Diversity index values were intermediate with low fluctuation throughout the study period, and no correlation with precipitation or water volume. However, the greatest diversity value was recorded in March 2006, when the peak of the precipitation was recorded. Evenness values showed a similar trend to the diversity index.
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spelling Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazilreservoirecologycommunitytemporal variationTo determine the fish species present in Taperoá II Reservoir, and their relevance to the local economy, this research aimed to evaluate the composition, abundance, degree of dominance and constancy of species, along with diversity, richness, evenness and similarity indices in a tropical semi-arid fish assemblage, during one year. Six 24 hour-long samplings were carried out between October 2005 and October 2006 using cast, seine and gillnets. The 889 collected individuals belonged to 11 species from 9 families. Temporal variation was observed in the capture frequency of different species, and a significant negative correlation between precipitation and number of individuals was also observed. Among the recorded families, Characidae showed a higher frequency of occurrence (38.4%), mostly due to Astyanax bimaculatus (Linnaeus, 1758) and A. fasciatus (Cuvier, 1819). Eight species were categorised as constant, two as accessory and one as accidental. Diversity index values were intermediate with low fluctuation throughout the study period, and no correlation with precipitation or water volume. However, the greatest diversity value was recorded in March 2006, when the peak of the precipitation was recorded. Evenness values showed a similar trend to the diversity index.Instituto Internacional de Ecologia2012-02-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842012000100013Brazilian Journal of Biology v.72 n.1 2012reponame:Brazilian Journal of Biologyinstname:Instituto Internacional de Ecologia (IIE)instacron:IIE10.1590/S1519-69842012000100013info:eu-repo/semantics/openAccessMontenegro,AKATorelli,JERCrispim,MCHernández,MIMMedeiros,AMAeng2012-03-15T00:00:00Zoai:scielo:S1519-69842012000100013Revistahttps://www.scielo.br/j/bjb/https://old.scielo.br/oai/scielo-oai.phpbjb@bjb.com.br||bjb@bjb.com.br1678-43751519-6984opendoar:2012-03-15T00:00Brazilian Journal of Biology - Instituto Internacional de Ecologia (IIE)false
dc.title.none.fl_str_mv Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
title Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
spellingShingle Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
Montenegro,AKA
reservoir
ecology
community
temporal variation
title_short Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
title_full Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
title_fullStr Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
title_full_unstemmed Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
title_sort Ichthyofauna diversity of Taperoá II reservoir, semi-arid region of Paraíba, Brazil
author Montenegro,AKA
author_facet Montenegro,AKA
Torelli,JER
Crispim,MC
Hernández,MIM
Medeiros,AMA
author_role author
author2 Torelli,JER
Crispim,MC
Hernández,MIM
Medeiros,AMA
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Montenegro,AKA
Torelli,JER
Crispim,MC
Hernández,MIM
Medeiros,AMA
dc.subject.por.fl_str_mv reservoir
ecology
community
temporal variation
topic reservoir
ecology
community
temporal variation
description To determine the fish species present in Taperoá II Reservoir, and their relevance to the local economy, this research aimed to evaluate the composition, abundance, degree of dominance and constancy of species, along with diversity, richness, evenness and similarity indices in a tropical semi-arid fish assemblage, during one year. Six 24 hour-long samplings were carried out between October 2005 and October 2006 using cast, seine and gillnets. The 889 collected individuals belonged to 11 species from 9 families. Temporal variation was observed in the capture frequency of different species, and a significant negative correlation between precipitation and number of individuals was also observed. Among the recorded families, Characidae showed a higher frequency of occurrence (38.4%), mostly due to Astyanax bimaculatus (Linnaeus, 1758) and A. fasciatus (Cuvier, 1819). Eight species were categorised as constant, two as accessory and one as accidental. Diversity index values were intermediate with low fluctuation throughout the study period, and no correlation with precipitation or water volume. However, the greatest diversity value was recorded in March 2006, when the peak of the precipitation was recorded. Evenness values showed a similar trend to the diversity index.
publishDate 2012
dc.date.none.fl_str_mv 2012-02-01
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=S1519-69842012000100013
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842012000100013
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1519-69842012000100013
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.72 n.1 2012
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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