Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Limnologica Brasiliensia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100408 |
Resumo: | Abstract Aim: We aimed to evaluate the variation in planktonic ciliate species composition in different strata of the Guaraná Lake, encompassing high and low water periods, at the Upper Paraná River floodplain. Methods Samplings were collected monthly between March 2007 and February 2008, from the epilimnion, metalimnion and hypolimnion. Ciliates samples were filtered using a plankton net of 10µm mesh size and identified in vivo under an optical microscope. Results Among 112 species identified, 13 were found exclusively during the high water periods and 39 during the low water period. Results of nonparametric extrapolation indices evidenced that the observed richness represented between 70% and 90% of the estimated richness. Regarding the variation in species composition, Beta1 index showed that the alteration in composition between strata during the low water period was slightly greater than that registered during high waters. Cluster analysis evidenced a higher dissimilarity in ciliate species composition between periods than among the different strata. The greatest variation in species composition was verified during the distinct hydrological periods, whereas no significant differences were observed for the different strata analysed. Conclusions We found that in the pelagic compartment, ciliate species composition changed significantly between hydrological periods, and a higher similarity in species composition among strata was observed during the high water period. Therefore, alterations in the vertical distribution seem to be related to the homogenizing effect of the floods in the water column stability. |
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Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lakeprotistplanktonspecies richnessdiversityfreshwater Abstract Aim: We aimed to evaluate the variation in planktonic ciliate species composition in different strata of the Guaraná Lake, encompassing high and low water periods, at the Upper Paraná River floodplain. Methods Samplings were collected monthly between March 2007 and February 2008, from the epilimnion, metalimnion and hypolimnion. Ciliates samples were filtered using a plankton net of 10µm mesh size and identified in vivo under an optical microscope. Results Among 112 species identified, 13 were found exclusively during the high water periods and 39 during the low water period. Results of nonparametric extrapolation indices evidenced that the observed richness represented between 70% and 90% of the estimated richness. Regarding the variation in species composition, Beta1 index showed that the alteration in composition between strata during the low water period was slightly greater than that registered during high waters. Cluster analysis evidenced a higher dissimilarity in ciliate species composition between periods than among the different strata. The greatest variation in species composition was verified during the distinct hydrological periods, whereas no significant differences were observed for the different strata analysed. Conclusions We found that in the pelagic compartment, ciliate species composition changed significantly between hydrological periods, and a higher similarity in species composition among strata was observed during the high water period. Therefore, alterations in the vertical distribution seem to be related to the homogenizing effect of the floods in the water column stability.Associação Brasileira de Limnologia2017-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100408Acta Limnologica Brasiliensia v.29 2017reponame:Acta Limnologica Brasiliensia (Online)instname:Associação Brasileira de Limnologia (ABL)instacron:ABL10.1590/s2179-975x5817info:eu-repo/semantics/openAccessPauleto,Gustavo MayerOliveira,Felipe Rafael deSegovia,Bianca TrevizanMeira,Bianca RamosLansac-Tôha,FernandoBuosi,Paulo Roberto BressanVelho,Luiz Felipe Machadoeng2017-12-15T00:00:00Zoai:scielo:S2179-975X2017000100408Revistahttp://www.ablimno.org.br/publiActa.phphttps://old.scielo.br/oai/scielo-oai.php||actalb@rc.unesp.br2179-975X0102-6712opendoar:2017-12-15T00:00Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL)false |
dc.title.none.fl_str_mv |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake |
title |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake |
spellingShingle |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake Pauleto,Gustavo Mayer protist plankton species richness diversity freshwater |
title_short |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake |
title_full |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake |
title_fullStr |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake |
title_full_unstemmed |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake |
title_sort |
Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake |
author |
Pauleto,Gustavo Mayer |
author_facet |
Pauleto,Gustavo Mayer Oliveira,Felipe Rafael de Segovia,Bianca Trevizan Meira,Bianca Ramos Lansac-Tôha,Fernando Buosi,Paulo Roberto Bressan Velho,Luiz Felipe Machado |
author_role |
author |
author2 |
Oliveira,Felipe Rafael de Segovia,Bianca Trevizan Meira,Bianca Ramos Lansac-Tôha,Fernando Buosi,Paulo Roberto Bressan Velho,Luiz Felipe Machado |
author2_role |
author author author author author author |
dc.contributor.author.fl_str_mv |
Pauleto,Gustavo Mayer Oliveira,Felipe Rafael de Segovia,Bianca Trevizan Meira,Bianca Ramos Lansac-Tôha,Fernando Buosi,Paulo Roberto Bressan Velho,Luiz Felipe Machado |
dc.subject.por.fl_str_mv |
protist plankton species richness diversity freshwater |
topic |
protist plankton species richness diversity freshwater |
description |
Abstract Aim: We aimed to evaluate the variation in planktonic ciliate species composition in different strata of the Guaraná Lake, encompassing high and low water periods, at the Upper Paraná River floodplain. Methods Samplings were collected monthly between March 2007 and February 2008, from the epilimnion, metalimnion and hypolimnion. Ciliates samples were filtered using a plankton net of 10µm mesh size and identified in vivo under an optical microscope. Results Among 112 species identified, 13 were found exclusively during the high water periods and 39 during the low water period. Results of nonparametric extrapolation indices evidenced that the observed richness represented between 70% and 90% of the estimated richness. Regarding the variation in species composition, Beta1 index showed that the alteration in composition between strata during the low water period was slightly greater than that registered during high waters. Cluster analysis evidenced a higher dissimilarity in ciliate species composition between periods than among the different strata. The greatest variation in species composition was verified during the distinct hydrological periods, whereas no significant differences were observed for the different strata analysed. Conclusions We found that in the pelagic compartment, ciliate species composition changed significantly between hydrological periods, and a higher similarity in species composition among strata was observed during the high water period. Therefore, alterations in the vertical distribution seem to be related to the homogenizing effect of the floods in the water column stability. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-01-01 |
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=S2179-975X2017000100408 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100408 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/s2179-975x5817 |
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 |
Associação Brasileira de Limnologia |
publisher.none.fl_str_mv |
Associação Brasileira de Limnologia |
dc.source.none.fl_str_mv |
Acta Limnologica Brasiliensia v.29 2017 reponame:Acta Limnologica Brasiliensia (Online) instname:Associação Brasileira de Limnologia (ABL) instacron:ABL |
instname_str |
Associação Brasileira de Limnologia (ABL) |
instacron_str |
ABL |
institution |
ABL |
reponame_str |
Acta Limnologica Brasiliensia (Online) |
collection |
Acta Limnologica Brasiliensia (Online) |
repository.name.fl_str_mv |
Acta Limnologica Brasiliensia (Online) - Associação Brasileira de Limnologia (ABL) |
repository.mail.fl_str_mv |
||actalb@rc.unesp.br |
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1754212637226303488 |