Microbial Community Diversity as a Potential Bioindicator of AMD and Steel Plant Effluent in a Channelled Valley Bottom Wetland

Staebe, K.; Botes, Marelize; Madlala, Tebogo; Oberholster, Paul Johan; Cloete, T.E.

doi:10.1007/s11270-018-4037-1

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…At a phylum level, we found that Proteobacteria was the most abundant phyla for all the sediment samples and the other nine dominant phyla. This pattern of bacterial phyla dominance has been frequently reported in studies of bacterial diversity in riverbed sediment and other wetland soils, and so, we consider phylum-level analyses to have low potential as health bioindicators for the ecosystems studied here [19,23,24,[46][47][48]. Our results show that there was a clear similarity of taxonomic composition between the control and LI bacterial communities.…”

Section: Discussionsupporting

confidence: 77%

Assessments of Bacterial Community Shifts in Sediments along the Headwaters of São Francisco River, Brazil

et al. 2021

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Sustainable use of freshwater resources for human civilization needs requires the assessment and monitoring of freshwater health, and bacterial communities from riverbed sediments have been shown to be susceptible to chronic anthropogenic disturbances in freshwater ecosystems. Here, we took advantage of the occurrence of well-recognized adjacent sections from the Upper São Francisco River basin with well-recognized levels of anthropogenic activity intensity to test the applicability of sediment bacterial communities as bioindicators of impacts on freshwater ecosystems. We applied 16S amplicon sequencing to estimate the diversity and composition of bacterial communities from 12 sampling sites across the Upper São Francisco River basin, classified as being of no, low, or high intensity of anthropogenic activities, and used diversity metrics and LEfSe to compare the patterns of community structure. Our results revealed that accessed sediment environments associated with land areas with a high intensity of anthropogenic activities presented the lowest levels of community diversity, and the bacterial community compositions of these environments were significantly different from the other sampled areas. Our findings can be considered a source of evidence for the usefulness of bacterial community-based approaches as a tool for diagnosis and monitoring of ecosystem health in areas of vulnerable freshwater environments, and can even be incorporated into regular water quality programs.

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Section: Discussionsupporting

confidence: 77%

Assessments of Bacterial Community Shifts in Sediments along the Headwaters of São Francisco River, Brazil

et al. 2021

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“…Additionally, the ubiquitous nature and extensive knowledge of periphyton ecology within the scientific community makes periphyton suitable for monitoring and assessing aquatic HM pollution [18,184,[201][202][203]. Benthic diatoms and filamentous green algal assemblages are useful in evaluating biotic responses to mining pollutions in stream ecosystems [204][205][206].…”

Section: Microphytes Periphyton and Macrophytesmentioning

confidence: 99%

Aquatic Ecological Risk of Heavy-Metal Pollution Associated with Degraded Mining Landscapes of the Southern Africa River Basins: A Review

2022

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Africa accounts for nearly 30% of the discovered world’s mineral reserves, with half of the world’s platinum group metals deposits, 36% of gold, and 20% of cobalt being in Southern Africa (SA). The intensification of heavy-metal production in the SA region has exacerbated negative human and environmental health impacts. In recent years, mining waste generated from industrial and artisanal mining has significantly affected the ecological integrity of SA aquatic ecosystems due to the accelerated introduction and deposition of heavy metals. However, the extent to which heavy-metal pollution associated with mining has impacted the aquatic ecosystems has not been adequately documented, particularly during bioassessments. This review explores the current aquatic ecological impacts on the heavily mined river basins of SA. It also discusses the approaches to assessing the ecological risks, inherent challenges, and potential for developing an integrated ecological risk assessment protocol for aquatic systems in the region. Progress has been made in developing rapid bioassessment schemes (RBS) for SA aquatic ecosystems. Nevertheless, method integration, which also involves heavy-metal pollution monitoring and molecular technology, is necessary to overcome the current challenges of the standardisation of RBS protocols. Citizenry science will also encourage community and stakeholder involvement in sustainable environmental management in SA.

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Assessing the groundwater dependence of valley bottom wetlands in coal-mining environment using multiple environmental tracers, Mpumalanga, South Africa

Madlala

Oberholster

Butler

2021

Sustain. Water Resour. Manag.

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Microbial Community Diversity as a Potential Bioindicator of AMD and Steel Plant Effluent in a Channelled Valley Bottom Wetland

Cited by 3 publications

References 42 publications

Assessments of Bacterial Community Shifts in Sediments along the Headwaters of São Francisco River, Brazil

Assessments of Bacterial Community Shifts in Sediments along the Headwaters of São Francisco River, Brazil

Aquatic Ecological Risk of Heavy-Metal Pollution Associated with Degraded Mining Landscapes of the Southern Africa River Basins: A Review

Assessing the groundwater dependence of valley bottom wetlands in coal-mining environment using multiple environmental tracers, Mpumalanga, South Africa

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