Understanding the impacts of intermittent supply on the drinking water microbiome

Santos, Quyen Melina Bautista-de los; Chavarria, Karina; Nelson, Kara L.

doi:10.1016/j.copbio.2019.04.003

Cited by 33 publications

(35 citation statements)

References 79 publications

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“…Freshwater environments come in many shapes and forms, from pristine mountain lakes to highly polluted wastewater treatment facilities, each hosting a complex and dynamic microbial community (“microbiome”; Bruno et al, 2018 ; Bautista-de los Santos et al, 2019 ; Zorz et al, 2019 ). Such aquatic microbiomes are strongly affected by environmental conditions within the water body (e.g., temperature and nutrients availability), and in turn shape its biogeochemistry, for example by processing and recycling organic and inorganic matter ( Liu et al, 2017 ; Rowe et al, 2018 ; Hach et al, 2020 ).…”

Section: Introductionmentioning

confidence: 99%

Seasonal Dynamics Are the Major Driver of Microbial Diversity and Composition in Intensive Freshwater Aquaculture

et al. 2021

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Aquaculture facilities such as fishponds are one of the most anthropogenically impacted freshwater ecosystems. The high fish biomass reared in aquaculture is associated with an intensive input into the water of fish-feed and fish excrements. This nutrients load may affect the microbial community in the water, which in turn can impact the fish health. To determine to what extent aquaculture practices and natural seasonal cycles affect the microbial populations, we characterized the microbiome of an inter-connected aquaculture system at monthly resolution, over 3 years. The system comprised two fishponds, where fish are grown, and an operational water reservoir in which fish are not actively stocked. Clear natural seasonal cycles of temperature and inorganic nutrients concentration, as well as recurring cyanobacterial blooms during summer, were observed in both the fishponds and the reservoir. The structure of the aquatic bacterial communities in the system, characterized using 16S rRNA sequencing, was explained primarily by the natural seasonality, whereas aquaculture-related parameters had only a minor explanatory power. However, the cyanobacterial blooms were characterized by different cyanobacterial clades dominating at each fishpond, possibly in response to distinct nitrogen and phosphate ratios. In turn, nutrient ratios may have been affected by the magnitude of fish feed input. Taken together, our results show that, even in strongly anthropogenically impacted aquatic ecosystems, the structure of bacterial communities is mainly driven by the natural seasonality, with more subtle effects of aquaculture-related factors.

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Section: Introductionmentioning

confidence: 99%

Seasonal Dynamics Are the Major Driver of Microbial Diversity and Composition in Intensive Freshwater Aquaculture

et al. 2021

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show abstract

“…Freshwater environments come in many shapes and forms, from pristine mountain lakes to highly polluted wastewater treatment facilities, each hosting a complex and dynamic microbial community (“microbiome”; Bautista-de los Santos et al, 2019; Bruno et al, 2018; Zorz et al, 2019). Such aquatic microbiomes are strongly affected by environmental conditions within the water body (e.g., temperature and nutrients availability), and in turn shape its biogeochemistry, for example by processing and recycling organic and inorganic matter (Hach et al, 2020; Liu et al, 2017; Rowe et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

Seasonal dynamics are the major driver of microbial diversity and composition in intensive freshwater aquaculture

Marmen

Fadeev

Al-Ashhab

et al. 2021

Preprint

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Aquaculture facilities such as fishponds are one of the most anthropogenically impacted freshwater ecosystems. The high fish biomass reared in aquaculture is associated with an intensive input into the water of fish-feed and fish excrements. This nutrients load may affect the microbial community in the water, which in turn can impact the fish health. To determine to what extent aquaculture practices and natural seasonal cycles affect the microbial populations, we characterized the microbiome of an inter-connected aquaculture system at monthly resolution, over three years. The system comprised two fishponds, where fish are grown, and a "control" operational water reservoir in which fish are not actively stocked. Clear natural seasonal cycles of temperature and inorganic nutrients concentration, as well as recurring cyanobacterial blooms during summer, were observed in both the fishponds and the reservoir. The structure of the aquatic bacterial communities in the system, characterized using 16S rRNA sequencing, was explained primarily by the natural seasonality, whereas aquaculture-related parameters had only a minor explanatory power. However, the cyanobacterial blooms were characterized by different cyanobacterial clades dominating at each fishpond, possibly in response to distinct nitrogen and phosphate ratios. In turn, nutrient ratios may have been by the magnitude of fish feed input. Taken together, our results show that, even in strongly anthropogenically impacted aquatic ecosystems, the structure of bacterial communities is mainly driven by the natural seasonality, with more subtle effects if aquaculture-related factors.

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“…Other systems with regular change between flow and stagnation include building plumbing ( Lautenschlager et al. 2010 ) and drinking water systems with intermittent supply ( Bautista-de los Santos et al. 2019 ).…”

Section: Discussionmentioning

confidence: 99%

“…2011 ). Recurring stagnation can increase cell concentrations due to microbial detachment during and after stagnation, for example in intermittent drinking water supply systems ( Bautista-de los Santos et al. 2019 , Kumpel and Nelson 2016 ) and in building plumbing ( Bédard et al.…”

Section: Introductionmentioning

confidence: 99%

Stagnation leads to short-term fluctuations in the effluent water quality of biofilters: A problem for greywater reuse?

Hess

Baum

Schiessl³

et al. 2021

Water Research X

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Highlights A greywater treatment system was monitored with automated flow cytometry and turbidity. Stagnation in biological activated carbon filter led to peaks in total cell concentration and turbidity. Strong correlation was observed between TCC and turbidity. Stagnation did not lead to increase of opportunistic pathogens in the biofilter's effluent.

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Understanding the impacts of intermittent supply on the drinking water microbiome

Cited by 33 publications

References 79 publications

Seasonal Dynamics Are the Major Driver of Microbial Diversity and Composition in Intensive Freshwater Aquaculture

Seasonal Dynamics Are the Major Driver of Microbial Diversity and Composition in Intensive Freshwater Aquaculture

Seasonal dynamics are the major driver of microbial diversity and composition in intensive freshwater aquaculture

Stagnation leads to short-term fluctuations in the effluent water quality of biofilters: A problem for greywater reuse?

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