Planktonic Radiococcaceae Fott ex Komárek of the Tigres Lake system, Britânia, Goiás State, Brazil

Alves, Frederico Rocha Rodrigues; Gama, Watson Arantes; Nogueira, I. S.

doi:10.1007/s40415-014-0050-9

Cited by 4 publications

(2 citation statements)

References 5 publications

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“…Eutetramorus tetrasporus differs morphologically fromRadiococcus fottii (F.Hindák) I.Kostikov, T.Darienko, A.Lukesová, & L.Hoffmann due to smaller cell dimensions and the tetrahedral arrangement of cells. The dimensions found in the specimens of the Coati Chico River are in agreement withAlves et al (2014). E. tetrasporus is commonly found in eutrophic lakes, slowmoving rivers or swamps(Kim 2014).…”

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confidence: 76%

Planktonic chlorophyceans of a Brazilian subtropical river: taxonomy and ecological aspects

et al. 2021

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Given the extreme importance of understanding biodiversity in the contemporary context, this study performed a taxonomic survey of planktonic green algae from a subtropical river in Paraná state, broadening knowledge of the group’s geographic distribution and the environmental conditions related to its occurrence. Monthly samplings of phytoplanktonic material were carried out from February 2015 to January 2016, resulting in the identification of 26 taxa belonging to the classes Chlorophyceae and Trebouxiophyceae, distributed among 16 genera and six taxonomic families. Among the taxa identified, seven are new citations for Paraná.

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confidence: 76%

Planktonic chlorophyceans of a Brazilian subtropical river: taxonomy and ecological aspects

et al. 2021

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“…The Radiococcaceae sensu lato is distributed in freshwater as well as terrestrial habitats worldwide, and it is one of the most taxonomically difficult groups in green algae (Pažoutová 2008). Radiococcacean systematics is not clearly delimited, and there is still much discussion about the taxonomic systems used to classify species (Alves et al 2014). The scope of this family has been changed according to the view of the different authors.…”

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confidence: 99%

Morphology and phylogeny of three planktonic Radiococcaceae sensu lato species (Sphaeropleales, Chlorophyceae) from China, including the description of a new species Planktosphaeria hubeiensis sp. nov.

Zhang¹,

Zheng²,

Li³

et al. 2018

Fottea

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Abstract:The family Radiococcaceae sensu lato, defined as colonial autospore-producing mucilaginous coccoid green algae, is widespread in terrestrial and freshwater habitats. Three species of Radiococcaceae sensu lato, including two Radiococcus species and one Planktosphaeria species, were described from China by light and electron microscopy. A new species of Planktosphaeria, Planktosphaeria hubeiensis sp. nov. was erected based on morphological comparisons and genetic analyses. Our phylogenetic analyses indicated that Radiococcaceae sensu lato is polyphyletic, and separated into three lineages. The Radiococcus species did not cluster into a monophyletic group in phylogenetic analyses; therefore the taxonomy of the genus Radiococcus should be revised in the future.

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Ecotechnologies for Aquaculture Wastewater Treatment in a Water-Scarce Region

Gomes,

Silva,

Tonizza-Pereira

2024

Braz. arch. biol. technol.

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In aquaculture, biological treatments usually have an excellent benefit-cost ratio. This study evaluated the efficiency of different ecotechnologies on aquaculture wastewater treatment. Two experimental units were installed. In the first one, tanks were individually vegetated with free-floating aquatic macrophytes. In the second experimental unit, 10.72 m² of artificial substrate were added for periphyton colonization. The hydraulic retention time of the wastewater was of 30 days. Both physical and chemical characterizations of the effluent were carried out at the beginning and at the end of the experiment. The periphyton community attached to the substrate was catalogued. In the first unit, the pH, nitrite, and orthophosphate values were significantly different. The tanks vegetated with Azolla filiculoides were the only ones where the electrical conductivity values were reduced. Tanks vegetated with Azolla filiculoides and Pontederia crassipes presented decreased the nitrate concentration. On the other hand, the concentration of ammonia and total phosphorus decreased in all vegetated tanks. In the second unit, only the nitrate and ammonia values did not decrease in the last day of the experiment. 33 taxa belonging to the classes Cyanophyceae, Chlorophyceae, Bacillariophyceae, Trebouxiophyceae, Coleochaetophyceae, Coscinodiscophyceae and Zygnematophyceae were identified in the substrate. The experimental units were effective in mitigating the nutrients in aquaculture wastewater that cause eutrophication. HIGHLIGHTS• We assessed ecotechnologies with aquatic macrophytes and with periphyton.• Azolla filiculoides, Pontederia crassipes and Salvinia auriculata were used.• Nutrient removal was greater using aquatic macrophytes than using periphyton.• Periphyton was not efficient in reducing the ammonia and nitrate contents.

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Planktonic Radiococcaceae Fott ex Komárek of the Tigres Lake system, Britânia, Goiás State, Brazil

Cited by 4 publications

References 5 publications

Planktonic chlorophyceans of a Brazilian subtropical river: taxonomy and ecological aspects

Planktonic chlorophyceans of a Brazilian subtropical river: taxonomy and ecological aspects

Morphology and phylogeny of three planktonic Radiococcaceae sensu lato species (Sphaeropleales, Chlorophyceae) from China, including the description of a new species Planktosphaeria hubeiensis sp. nov.

Ecotechnologies for Aquaculture Wastewater Treatment in a Water-Scarce Region

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