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Free-living protozoa (ciliophora, excavata and amoebozoa) in two water sources for human supply in the municipality of Blumenau, SC

Authors

DOI:

https://doi.org/10.5902/2179460X64753

Keywords:

Free-living protozoa, water source, water quality indicators, Itajaí –Açu river, Itoupava Rega stream.

Abstract

The knowledge of the diversity of free-living protozoa in aquatic ecosystems represents an important tool in environmental quality management. It has been widely used in studies evaluating the water quality of fresh-water sources with environmental variables. Therefore, this study aimed to verify the diversity of free-living protozoa in two water sources used as a public supply for human consumption in the municipality of Blumenau, SC, for 12 months. Water samples were collected monthly for analysis of environmental variables and for identification of organisms. In total, 39 taxa were recorded in P1 and P2, both in the readings performed on the day of collection and in the cultivation. In P1, 11 taxa were identified in the readings of the day of collection, and after reading the cultivation, 20 new taxa were recorded.  P2 presented 12 taxa in the readings performed on the day of collection and 10 new taxa in the cultivations' readings. Ciliates were the most expressive group in the period, with 69.5% frequency in P1 and 66.1% in P2. The results of the environmental variables in conjunction with the survey of the free-living protozoa of P1 and P2 did not show marked differences between the points. Still, they contributed to the knowledge of the diversity of protozoa in aquatic environments.

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Author Biographies

Suelen Cristina Grott, Fundação Universidade Regional de Blumenau, SC, Brasil

Agricultural Technician with qualification in Agriculture from the Federal Agrotechnical School of Rio do Sul (2002). Has a degree in Biological Sciences from the Fundação Universidade Regional de Blumenau (2009). Specialist in Science Teaching by the Federal Institute of Education, Science and Technology of Santa Catarina (2012). Holds a master's degree in Environmental Engineering from the Regional University of Blumenau (2015). Has experience in the areas of Parasitology, Microbiology and Immunology. Is currently a doctoral student of the Graduate Program in Environmental Engineering in the area of Aquatic Toxicology.

 

Juliane Araújo Goulart Greinert, Fundação Universidade Regional de Blumenau, SC, Brasil

Holds a degree in Pharmacy Clinical Analysis from the Federal University of Santa Catarina (1999), a Master's degree in Biotechnology from the Federal University of Santa Catarina - UFSC (2002) and a PhD in Parasitology from the State University of Campinas - UNICAMP (2013). Is currently a professor at the Fundação Universidade Regional de Blumenau-FURB. 

 

Isabel Cristina Vidal Siqueira de Castro, Instituto Federal de Educação, Ciência e Tecnologia do Sudeste de MG, MG, Brasil.

Postdoctoral fellow at the State University of Campinas (2013). PhD in Biological Sciences (Zoology) from the National Museum, Federal University of Rio de Janeiro (2008), Master's in Animal Behavior and Ecology from the Federal University of Juiz de Fora (2002) and Graduation in Biological Sciences from the Federal University of Juiz de Fora ( 1999). Works as a researcher in the areas of Zoology-Protozoology subarea, with emphasis on Applied Protozoology, Activated Sludge Microfauna, Taxonomy and Ecology of Ciliated Protists and Environmental Parasitology. 

Vander Vander Kaufmann, Fundação Universidade Regional de Blumenau, SC, Brasil

PhD in Water Resources and Environmental Sanitation by the Institute of Hydraulic Research IPH/UFRGS (2013). Master in Environmental Engineering from the Regional University of Blumenau/FURB (2009). Graduated in Chemistry and Physics from Universidade do Sul de Santa Catarina (2006), degree in Sciences Qualification Biology - Catholic Colleges of Palmas-PR (2003).

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Published

2022-03-24 — Updated on 2022-04-06

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How to Cite

Grott, S. C., Greinert, J. A. G., Castro, I. C. V. S. de, & Kaufmann, V. V. (2022). Free-living protozoa (ciliophora, excavata and amoebozoa) in two water sources for human supply in the municipality of Blumenau, SC. Ciência E Natura, 44, e4. https://doi.org/10.5902/2179460X64753 (Original work published March 24, 2022)

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Biology-Ecology