Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment

The Water Framework Directive (WFD) is used to evaluate the water quality of aquatic ecosystems. Phytoplankton is the only biological element considered in the reservoirs water quality assessment. In this study, we aimed to assess the use of the bacterioplankton community as an indicator of water qu...

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Main Authors: Ivo Pinto, Rita Calisto, Cláudia R. Serra, Olga M. Lage, Sara C. Antunes
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Water
Subjects:
Online Access:https://www.mdpi.com/2073-4441/13/20/2836
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author Ivo Pinto
Rita Calisto
Cláudia R. Serra
Olga M. Lage
Sara C. Antunes
author_facet Ivo Pinto
Rita Calisto
Cláudia R. Serra
Olga M. Lage
Sara C. Antunes
author_sort Ivo Pinto
collection DOAJ
description The Water Framework Directive (WFD) is used to evaluate the water quality of aquatic ecosystems. Phytoplankton is the only biological element considered in the reservoirs water quality assessment. In this study, we aimed to assess the use of the bacterioplankton community as an indicator of water quality, using a culture-independent assay (denaturing gradient gel electrophoresis, DGGE). Four Portuguese reservoirs (Miranda, Pocinho, Aguieira and Alqueva) were analysed in four periods (autumn 2018, spring and autumn 2019, and spring 2020). Bacterial total abundance had similar values for Miranda, Pocinho and Aguieira, and generally lower values for Alqueva. Diversity and richness values did not show a clear trend. Negative correlations were observed between some nutrients and the bacterial community. Overall, members of <i>Actinobacteria</i>, <i>Bacteroidetes</i>, <i>Cyanobacteria</i>, <i>Nitrospirae</i> and <i>Proteobacteria</i> were identified in all sampling sites. In Alqueva, no spatial, temporal or water body quality relationships with bacterial community were observed, which may be due to its higher size, low water velocity rate and higher residence times. However, in Miranda, Pocinho and Aguieira, a strong spatial and temporal bacterial community dynamic was observed. Furthermore, the presence of some species (e.g., <i>Acinetobacter</i> sp.) may reflect the poor water quality that was not detected by the WFD approach.
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spelling doaj.art-a7947491f7db41ee8a3f158b69bd77f52023-11-22T20:21:29ZengMDPI AGWater2073-44412021-10-011320283610.3390/w13202836Bacterioplankton Community as a Biological Element for Reservoirs Water Quality AssessmentIvo Pinto0Rita Calisto1Cláudia R. Serra2Olga M. Lage3Sara C. Antunes4Departamento de Biologia da Faculdade de Ciências da Universidade do Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, PortugalDepartamento de Biologia da Faculdade de Ciências da Universidade do Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, PortugalDepartamento de Biologia da Faculdade de Ciências da Universidade do Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, PortugalDepartamento de Biologia da Faculdade de Ciências da Universidade do Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, PortugalDepartamento de Biologia da Faculdade de Ciências da Universidade do Porto (FCUP), Rua do Campo Alegre s/n, 4169-007 Porto, PortugalThe Water Framework Directive (WFD) is used to evaluate the water quality of aquatic ecosystems. Phytoplankton is the only biological element considered in the reservoirs water quality assessment. In this study, we aimed to assess the use of the bacterioplankton community as an indicator of water quality, using a culture-independent assay (denaturing gradient gel electrophoresis, DGGE). Four Portuguese reservoirs (Miranda, Pocinho, Aguieira and Alqueva) were analysed in four periods (autumn 2018, spring and autumn 2019, and spring 2020). Bacterial total abundance had similar values for Miranda, Pocinho and Aguieira, and generally lower values for Alqueva. Diversity and richness values did not show a clear trend. Negative correlations were observed between some nutrients and the bacterial community. Overall, members of <i>Actinobacteria</i>, <i>Bacteroidetes</i>, <i>Cyanobacteria</i>, <i>Nitrospirae</i> and <i>Proteobacteria</i> were identified in all sampling sites. In Alqueva, no spatial, temporal or water body quality relationships with bacterial community were observed, which may be due to its higher size, low water velocity rate and higher residence times. However, in Miranda, Pocinho and Aguieira, a strong spatial and temporal bacterial community dynamic was observed. Furthermore, the presence of some species (e.g., <i>Acinetobacter</i> sp.) may reflect the poor water quality that was not detected by the WFD approach.https://www.mdpi.com/2073-4441/13/20/2836bacteriabioindicatorecological qualityheavily modified water bodieslentic ecosystem
spellingShingle Ivo Pinto
Rita Calisto
Cláudia R. Serra
Olga M. Lage
Sara C. Antunes
Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment
Water
bacteria
bioindicator
ecological quality
heavily modified water bodies
lentic ecosystem
title Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment
title_full Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment
title_fullStr Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment
title_full_unstemmed Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment
title_short Bacterioplankton Community as a Biological Element for Reservoirs Water Quality Assessment
title_sort bacterioplankton community as a biological element for reservoirs water quality assessment
topic bacteria
bioindicator
ecological quality
heavily modified water bodies
lentic ecosystem
url https://www.mdpi.com/2073-4441/13/20/2836
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