Abstract
Bacterial pathogens are one of the causes of human diseases and have a serious impact on environmental health. In this study, we investigated the bacterial pathogen community in 88 sites at rivers around Lake Chaohu Basin, China, using Illumina miseq sequencing. The results showed that three opportunistic pathogens: Acinetobacter, Massilia, and Brevundimonas, were the three abundant bacterial genera in all samples, and had a relative abundance of 0.33 to 49.28% (average 8.80%), 0.06 to 25.4% (average 4.6%), 0.01 to 12.82% (average 2.6%) of all bacterial sequences, respectively. Our results indicated that a high abundance of opportunistic pathogens was observed in the rivers of the Lake Chaohu Basin, and that effective treatment and monitoring of sewage entering into rivers should be further strengthened.
Highlights
Rivers are the primary receivers of organic matter and nutrients from terrestrial ecosystems [1], and provide key coupling of biogeochemical cycles in aquatic ecosystems [2]
Understanding the bacterial pathogen community in the river is of great importance
A high abundance of the opportunistic pathogens Acinetobacter, Massilia, and Brevundimonas was observed in the rivers of the Lake Chaohu Basin, and effective treatment and
Summary
Rivers are the primary receivers of organic matter and nutrients from terrestrial ecosystems [1], and provide key coupling of biogeochemical cycles in aquatic ecosystems [2]. Rivers are important sources of renewable water for humans and freshwater ecosystems [3,4]. The release of effluent from wastewater treatment plants, ineffective septic tank systems, and storm water runoff may cause the direct inflow of sewage and excrement bacteria into rivers [5]. These bacterial genera usually include waterborne pathogens that are a danger to human health [6,7,8]. The lake has a surface area of 760 km and a mean depth of 2.69 m. The lake can be divided into two regions: from the Zhongmiao
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