Testate Amoebae (Rhizopodea-Sarcodina) from Zooplankton of the High Paran� River Floodplain, State of Mato Grosso do Sul, Brazil: I. Families Arcellidae and Centropyxidae

Velho, Luiz Felipe Machado; Lansac‐Tôha, Fábio Amodêo; Serafim-Júnior, Moacyr

doi:10.1076/snfe.31.1.35.13315

Cited by 24 publications

(21 citation statements)

References 7 publications

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“…Sci. Maringá, v. 29, n. 2, p. 185-195, 2007 (...continuação) Authors/Years State Habitat Missawa (2000) Mato Grosso Plankton Silva-Neto (2001) Mato Grosso Plankton Velho and Lansac-Tôha (1996) Mato Grosso do Sul Plankton Velho et al (1996; Mato Grosso do Sul Plankton (1996; 1997) Minas Gerais Plankton Bonnetti and Eichler (1997) São Paulo Sediment Brant- Ribeiro (1970) Minas Gerais Sediment Cunha (1913;1916) São Paulo/ Rio de Janeiro/ Minas Gerais Plankton Dabés (1995; Minas Gerais Plankton Dabés and Velho (2001) Minas Gerais …”

Section: Materia Materia Materiaunclassified

“…The adopted taxonomic classification was basically that proposed by Loeblich and Tappan (1964). Torres (1996a;b;c;1998) Rio Grande do Sul Aquatic Macrophytes Torres and Jebran (1994) Rio Grande do Sul Aquatic Macrophytes Torres and Schwarzbold (2000) Rio Grande do Sul Aquatic Macrophytes Velho and Lansac-Tôha (1996) Paraná Plankton Velho et al (1996; Paraná Plankton Center-West Region Alves et al (2007) Mato Grosso do Sul Plankton Bini et al (2003) Mato Grosso do Sul Plankton Bonecker et al (1998) Mato Grosso do Sul Plankton Daday (1905) Mato Grosso do Sul Plankton Green (1975) Mato Grosso Plankton Hardoim (1997) Mato Grosso Aquatic Macrophytes Hardoim and Heckman (1996) Mato Grosso Sediment/Aquatic Macrophytes Lansac- Tôha et al (1997;2004a;b) Mato Grosso do Sul Plankton Lansac-Tôha et al (1999;2000b) Goiás Plankton Leipnitz (2005) Mato Grosso do Sul Sediment (continua...) Acta Sci. Biol.…”

Section: Materia Materia Materiamentioning

confidence: 99%

“…According to Velho et al (1999;, the dimension of environments, the presence of aquatic macrophytes stands and water flow, which promotes marginal vegetation and sediment washout, seem to be important factors in determining patterns of Acta Sci. Biol.…”

Section: Cyclopyxis (Figura 4amentioning

confidence: 99%

“…Contributing to this fact, studies were developed in the Upper Paraná River floodplain (Mato Grosso do Sul State), in plankton samples (Lansac-Tôha et al, 1997;2004a;Velho and LansacTôha, 1996;Velho et al, 1996;Alves et al, 2007; among others) and in Pantanal do Poconé (Mato Grosso State), in sediment and aquatic macrophytes samples (Hardoim and Heckman, 1996;Hardoim, 1997), as well as in Cuiabá River (MT), in plankton samples (Missawa, 2000;SilvaNeto, 2001). Sediment, which is regarded by some authors (Bonnet, 1974;Green, 1975;Lena and Zaindenwerg, 1975), as a preferential habitat for testate amoebae, presents lower diversity when compared with plankton and macrophytes habitats, according to studies carried out in Brazil.…”

Section: Cyclopyxis (Figura 4amentioning

confidence: 99%

“…Later, during the last twenty years, some representative studies were carried out on testate amoebae species richness, composition, abundance and distribution in different habitat types, such as plankton, sediments, moss/Sphagnum and fauna associated with aquatic macrophytes (Godinho-Orlandi and Barbieri, 1983;Neumann-Leitão and Nogueira-Paranhos, 1987;Barbieri and Godinho-Orlandi, 1989;Rolla et al, 1992;Torres and Jebran, 1994;Dabés, 1995;Hardoim and Heckman, 1996;Landa, 1997;Rhoden and Pitoni, 1999;Dabés and Velho, 2001;Bini et al, 2003;Lansac-Tôha et al, 1992;2004a;Velho et al, 1996;2004a;b;Fulone et al, 2005;Souza, 2005; among others). These studies increased the knowledge on testate amoebae occurrence in Brazil, considering the distribution in different types of studied habitats.…”

Section: Introduction Introduction Introduction Introductionmentioning

confidence: 99%

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Riqueza de espécies e distribuição geográfica de amebas testáceas (Rhizopoda) em ambientes aquáticos continentais brasileiros

Lansac‐Tôha¹,

Zimmermann-Callegari²,

Alves³

et al. 2007

Acta Sci. Biol. Sci.

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ABSTRACT. The present study aimed to analyze the species richness of testate amoebae, as well as to describe their geographic distribution and different habitat types in Brazilian freshwater environments. Until now, 346 infrageneric taxa have been recorded, belonging to 13 families and 40 genera. In the Center-West region, 267 taxa were recorded; 188 taxa in the Southeast; 129 taxa in the South, 53 taxa in the North; and 18 taxa in Northeast region. A total of 282 taxa were recorded in plankton; 80 taxa in aquatic macrophytes; 81 taxa in sediment; and 73 taxa in moss/sphagnum. The results regarding testate amoebae species richness are not yet conclusive, given that most research on these organisms was carried out in central, southeastern and southern Brazil. The higher number of taxa observed in plankton may be due to the fact that most studies on testate amoebae in Brazil had been carried out in the planktonic compartment, including reservoirs, floodplain lagoons, channels, tributaries and rivers. In addition, the majority of studies with sediment samples were conducted in estuaries or coastal lagoons, where salinity is a restricting factor for the occurrence of these organisms.Key words: testate amoebae, geographical distribution, plankton, aquatic macrophytes, sediment, moss.RESUMO. Riqueza de espécies e distribuição geográfica de amebas testáceas (Rhizopoda) em ambientes aquáticos continentais brasileiros. Este trabalho visa realizar um levantamento da riqueza de espécies de amebas testáceas, bem como descrever a distribuição geográfica e a distribuição em diferentes tipos de habitats desses organismos em ambientes aquáticos continentais brasileiros. Até o momento, são registrados 346 táxons infragenéricos, pertencentes a 13 famílias e 40 gêneros. São registrados 267 táxons na região centro-oeste, 188 táxons na região sudeste, 129 táxons na região sul, 53 táxons na região norte e 18 táxons na região nordeste. São registrados 282 táxons no plâncton; 131 táxons em macrófitas aquáticas, 81 táxons no sedimento e 73 táxons em musgos/esfágnos. Os resultados sobre a riqueza de tecamebas não é ainda conclusiva, visto que a maioria das pesquisas foi conduzida nas regiões centro-oeste, sudeste e sul. O maior número de táxons registrados no plâncton pode ser em virtude de que a maioria dos estudos sobre tecamebas, no Brasil, ter sido realizada no compartimento planctônico, incluindo reservatórios, lagoas de várzeas, canais, tributários e rios. Além disso, a maior parte dos estudos, em amostras de sedimento, foi conduzida em estuários ou lagoas costeiras, onde a salinidade é um fator limitante para a ocorrência desses organismos.Palavras-chave: tecamebas, distribuição geográfica, plâncton, macrófitas aquáticas, sedimento, musgo.

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Section: Materia Materia Materiaunclassified

Section: Materia Materia Materiamentioning

confidence: 99%

Section: Cyclopyxis (Figura 4amentioning

confidence: 99%

Section: Cyclopyxis (Figura 4amentioning

confidence: 99%

Section: Introduction Introduction Introduction Introductionmentioning

confidence: 99%

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Riqueza de espécies e distribuição geográfica de amebas testáceas (Rhizopoda) em ambientes aquáticos continentais brasileiros

Lansac‐Tôha¹,

Zimmermann-Callegari²,

Alves³

et al. 2007

Acta Sci. Biol. Sci.

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Influence of Environmental Heterogeneity on the Structure of Testate Amoebae (Protozoa, Rhizopoda) Assemblages in the Plankton of the Upper Paraná River Floodplain, Brazil

Velho¹,

Lansac‐Tôha

Bini

2003

International Review of Hydrobiology

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In freshwater environments, testate amoebae are usually found associated with macrophytes and sediments and many studies have suggested that their occurrence in plankton samples is accidental. This implies that predictable patterns detected in planktonic assemblages should not be observed in testate amoebae assemblages. This hypothesis was tested in this study. Plankton samples were collected from different environments in the Upper Paraná River floodplain. Results show that patterns in species composition and abundance of testate amoebae are predictable, and that dominant species tend to present characteristic shell morphology in hydrologically different environments. We suggest that testate amoebae must be routinely included in plankton ecology studies, at least in floodplain environments.

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Literature

Heckman¹

1998

Monographiae Biologicae

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Testate Amoebae (Rhizopodea-Sarcodina) from Zooplankton of the High Paran� River Floodplain, State of Mato Grosso do Sul, Brazil: I. Families Arcellidae and Centropyxidae

Cited by 24 publications

References 7 publications

Riqueza de espécies e distribuição geográfica de amebas testáceas (Rhizopoda) em ambientes aquáticos continentais brasileiros

Riqueza de espécies e distribuição geográfica de amebas testáceas (Rhizopoda) em ambientes aquáticos continentais brasileiros

Influence of Environmental Heterogeneity on the Structure of Testate Amoebae (Protozoa, Rhizopoda) Assemblages in the Plankton of the Upper Paraná River Floodplain, Brazil

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