Protozoan ciliate epibionts on the freshwater apple snail<i>Pomacea figulina</i>(Spix, 1827) (Gastropoda, Ampullariidae) in an urban stream of south‐east Brazil

Dias, Roberto Júnio Pedroso; D’ávila, Sthefane; Wieloch, Alfredo Hannemann; D’Agosto, Marta

doi:10.1080/00222930802007831

Cited by 14 publications

(4 citation statements)

References 44 publications

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“…Studies on ciliate species richness in lotic systems have shown a variation from 20 to 200 registered species (Madoni, 2005;Madoni and Braghiroli, 2007;Dias et al, 2008;Debastiani et al, 2016). Thus, species richness in our study (71 taxa) may be considered as relatively high, as samples were taken in only one stream.…”

Section: Composition and Richness Of Testate Amoebae And Ciliatesmentioning

confidence: 70%

“…Thus, species richness in our study (71 taxa) may be considered as relatively high, as samples were taken in only one stream. A study realized in only one urban stream at southeast Brazil identified 22 taxa (Dias et al, 2008).…”

Section: Composition and Richness Of Testate Amoebae And Ciliatesmentioning

confidence: 99%

“…Particularly, the small size, high metabolic rates, and short life cycle allow the protists to respond rapidly to changes in environmental characteristics (Xu et al, 2002;Segovia et al, 2016). These organisms are good indicators of stream health (Dias et al, 2008;Segovia et al, 2016). Studies on species richness of these organisms are practically non-existent due to difficulties still existent in the taxonomic identification of the species (Auer and Arndt, 2001;Debastiani et al, 2016).…”

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confidence: 99%

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Structure and dynamics of the protoplankton community in an environmentally protected urban stream

et al. 2020

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We aimed to investigate spatial and temporal scales, abundance, and factors that structure the communities of protozoans in a tropical urban stream. Methods: Samples of water for analysis of biological communities (testate amoebae, ciliates and bacteria) and limnological variables were taken in the Mandacaru stream located in the Conservation Unit of Parque do Cinquentenário, in the city of Maringá, Paraná State, Brazil, in two hydrological periods (dry and rainy). We calculated the Water Quality Index (WQI) composed by nine parameters of water quality (dissolved oxygen, thermotolerant coliforms, pH, BOD, water temperature, total nitrogen, total phosphorous, turbidity, and total solids), Trophic State Index (TSI) for phosphorous and we used a Redundancy Analysis (RDA) to verify the influence of environmental variables in the protozoan community. Results: The WQI showed that water quality was considered good in some points and considered bad in other points. The TSI for phosphorus classified the stream as mesotrophic in the majority of sampled sites points (mean between 53.09 and 58.35). We identified 19 taxa of testate amoebae, belonging to six families, being Difflugiidae, Centropyxidae, and Arcellidae those with more species and 71 infrageneric taxa of ciliates, distributed in 12 orders being Peniculida the most representative order, followed by Euplotida. According to RDA analysis, samples of the dry period were characterized by higher values of bacteria density and concentrations of chlorophyll-a, total phosphorous, and total nitrogen. Ciliates and testate amoebae presented higher abundance values in some of the months characterized by higher precipitation and in conditions of higher system productivity. Conclusion: we may conclude that the Mandacaru stream, although strongly influenced by anthropic action, still presents an acceptable water quality. Lastly, we emphasize that protists abundance was strongly influenced by system productivity. This was evidenced by elevated protozoan densities where there was higher primary and bacterial productivity. Thus, these organisms must be considered in studies that aim at the identification of organisms that may indicate anthropic impacts and environmental quality.

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Section: Composition and Richness Of Testate Amoebae And Ciliatesmentioning

confidence: 70%

Section: Composition and Richness Of Testate Amoebae And Ciliatesmentioning

confidence: 99%

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confidence: 99%

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Structure and dynamics of the protoplankton community in an environmentally protected urban stream

et al. 2020

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“…Utz and Coats (2005) observed low densities of ciliate in the antennae and legs of copepods, due to the great mobility of these regions. Epibiont ciliates have also been recorded in association with other basibiont organisms such as cladocerans (Green, 1974;Martins, 2018), isopods (Clamp, 1988;Azevedo et al, 2014), gastropods of the family Ampullariidae (Dias et al, 2008), plecopteros (Silva, 2010), chironomid larvae (Dias et al, 2007;Cabral et al, 2010), Leptophlebiidae (Ephemeroptera) (Abrahão et al, 2017), Odonata larvae (Corbi et al, 2016) and Annelids (Oligochaeta) (Dias et al, 2009).…”

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confidence: 99%

First report of Epibiont ciliates (Ciliophora: Peritrichia) living in Brinkhurstia americanus (Oligochaeta: Alluroididae) in a Neotropical river

et al. 2022

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Hypersymbionts and Hyperparasites of Parasitic Crustacea

2019

Parasitic Crustacea

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Protozoan ciliate epibionts on the freshwater apple snailPomacea figulina(Spix, 1827) (Gastropoda, Ampullariidae) in an urban stream of south‐east Brazil

Cited by 14 publications

References 44 publications

Structure and dynamics of the protoplankton community in an environmentally protected urban stream

Structure and dynamics of the protoplankton community in an environmentally protected urban stream

First report of Epibiont ciliates (Ciliophora: Peritrichia) living in Brinkhurstia americanus (Oligochaeta: Alluroididae) in a Neotropical river

Hypersymbionts and Hyperparasites of Parasitic Crustacea

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