Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake
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...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Associação Brasileira de Limnologia
2017-12-01
|
| Series: | Acta Limnologica Brasiliensia |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100408&lng=en&tlng=en |
| _version_ | 1811277762546106368 |
|---|---|
| author | Gustavo Mayer Pauleto Felipe Rafael de Oliveira Bianca Trevizan Segovia Bianca Ramos Meira Fernando Lansac-Tôha Paulo Roberto Bressan Buosi Luiz Felipe Machado Velho |
| author_facet | Gustavo Mayer Pauleto Felipe Rafael de Oliveira Bianca Trevizan Segovia Bianca Ramos Meira Fernando Lansac-Tôha Paulo Roberto Bressan Buosi Luiz Felipe Machado Velho |
| author_sort | Gustavo Mayer Pauleto |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-04-13T00:22:40Z |
| format | Article |
| id | doaj.art-ab3796f245b04604af538c30a3052f7b |
| institution | Directory Open Access Journal |
| issn | 2179-975X |
| language | English |
| last_indexed | 2024-04-13T00:22:40Z |
| publishDate | 2017-12-01 |
| publisher | Associação Brasileira de Limnologia |
| record_format | Article |
| series | Acta Limnologica Brasiliensia |
| spelling | doaj.art-ab3796f245b04604af538c30a3052f7b2022-12-22T03:10:42ZengAssociação Brasileira de LimnologiaActa Limnologica Brasiliensia2179-975X2017-12-0129010.1590/s2179-975x5817S2179-975X2017000100408Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lakeGustavo Mayer PauletoFelipe Rafael de OliveiraBianca Trevizan SegoviaBianca Ramos MeiraFernando Lansac-TôhaPaulo Roberto Bressan BuosiLuiz Felipe Machado VelhoAbstract 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.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100408&lng=en&tlng=enprotistplanktonspecies richnessdiversityfreshwater |
| spellingShingle | Gustavo Mayer Pauleto Felipe Rafael de Oliveira Bianca Trevizan Segovia Bianca Ramos Meira Fernando Lansac-Tôha Paulo Roberto Bressan Buosi Luiz Felipe Machado Velho Intra-annual variation in planktonic ciliate species composition (Protista: Ciliophora) in different strata in a shallow floodplain lake Acta Limnologica Brasiliensia protist plankton species richness diversity freshwater |
| title | 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_short | 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 |
| topic | protist plankton species richness diversity freshwater |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2179-975X2017000100408&lng=en&tlng=en |
| work_keys_str_mv | AT gustavomayerpauleto intraannualvariationinplanktonicciliatespeciescompositionprotistaciliophoraindifferentstratainashallowfloodplainlake AT feliperafaeldeoliveira intraannualvariationinplanktonicciliatespeciescompositionprotistaciliophoraindifferentstratainashallowfloodplainlake AT biancatrevizansegovia intraannualvariationinplanktonicciliatespeciescompositionprotistaciliophoraindifferentstratainashallowfloodplainlake AT biancaramosmeira intraannualvariationinplanktonicciliatespeciescompositionprotistaciliophoraindifferentstratainashallowfloodplainlake AT fernandolansactoha intraannualvariationinplanktonicciliatespeciescompositionprotistaciliophoraindifferentstratainashallowfloodplainlake AT paulorobertobressanbuosi intraannualvariationinplanktonicciliatespeciescompositionprotistaciliophoraindifferentstratainashallowfloodplainlake AT luizfelipemachadovelho intraannualvariationinplanktonicciliatespeciescompositionprotistaciliophoraindifferentstratainashallowfloodplainlake |