Bacterial community composition and structure in an Urban River impacted by different pollutant sources

Microbial communities in terrestrial fresh water are diverse and dynamic in composition due to different environmental factors. The goal of this study was to undertake a comprehensive analysis of bacterial composition along different rivers and creeks and correlate these to land-use practices and po...

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Bibliographic Details
Published in:The Science of the total environment 2016-10, Vol.566-567, p.1176-1185
Main Authors: Ibekwe, A. Mark, Ma, Jincai, Murinda, Shelton E.
Format: Article
Language:English
Subjects:
Acidobacteria
Actinobacteria
agricultural runoff
bacteria
Bacteria - classification
bacterial communities
Bacteroidetes
California
community structure
correspondence analysis
DNA, Bacterial - genetics
environmental factors
Environmental Monitoring
Freshwater
indicator species
land use
Microbial diversity
Microbiota
nitrogen dioxide
Non-point source pollution
pollutants
Proteobacteria
Pyrosequencing
rivers
Rivers - microbiology
Sediment
sediments
sequence analysis
Sequence Analysis, DNA
species diversity
streams
Surface water
urban runoff
Water Pollution, Chemical - analysis
water quality
Watershed
watersheds
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Summary:Microbial communities in terrestrial fresh water are diverse and dynamic in composition due to different environmental factors. The goal of this study was to undertake a comprehensive analysis of bacterial composition along different rivers and creeks and correlate these to land-use practices and pollutant sources. Here we used 454 pyrosequencing to determine the total bacterial community composition, and bacterial communities that are potentially of fecal origin, and of relevance to water quality assessment. The results were analyzed using UniFrac coupled with principal coordinate analysis (PCoA) to compare diversity, abundance, and community composition. Detrended correspondence analysis (DCA) and canonical correspondence analysis (CCA) were used to correlate bacterial composition in streams and creeks to different environmental parameters impacting bacterial communities in the sediment and surface water within the watershed. Bacteria were dominated by the phyla Proteobacteria, Bacteroidetes, Acidobacteria, and Actinobacteria, with Bacteroidetes significantly (P
ISSN:0048-9697
1879-1026
DOI:10.1016/j.scitotenv.2016.05.168