Interplay between sediment properties and stream flow conditions influences surface sediment organic matter and microbial biomass in a Mediterranean river

Ann, Vannak; Freixa, Anna; Butturini, Andrea; Romaní, Anna M.

doi:10.1007/s10750-018-3812-8

Cited by 8 publications

(5 citation statements)

References 53 publications

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“…Other factors contributing to variability in the estimate of this association include sediment depth, size, composition, and proximity to geological and other anthropogenic factors. − For example, fine-course, silty sediments have been correlated with higher microbial concentrations and bacterial growth. − In one study, while host-associated fecal markers observed in sediments along a river gradient corresponded with respective upstream animal and human hosts, notable differences in the concentrations and upstream correlations existed between the first centimeter of the sediment and below . These factors indicate opportunities for well-maintained spatial databases of sediment types and precise sampling approaches that would not be possible for surface water due to its more transient nature.…”

Section: Results and Discussionmentioning

confidence: 99%

Microbial Find, Inform, and Test Model for Identifying Spatially Distributed Contamination Sources: Framework Foundation and Demonstration of Ruminant Bacteroides Abundance in River Sediments

Wiesner-Friedman

Beattie

Stewart

et al. 2021

Environ. Sci. Technol.

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Microbial pollution in rivers poses known ecological and health risks, yet causal and mechanistic linkages to sources remain difficult to establish. Host-associated microbial source tracking (MST) markers help to assess the microbial risks by linking hosts to contamination but do not identify the source locations. Land-use regression (LUR) models have been used to screen the source locations using spatial predictors but could be improved by characterizing transport (i.e., hauling, decay overland, and downstream). We introduce the microbial Find, Inform, and Test (FIT) framework, which expands previous LUR approaches and develops novel spatial predictor models to characterize the transported contributions. We applied FIT to characterize the sources of BoBac, a ruminant Bacteroides MST marker, quantified in riverbed sediment samples from Kewaunee County, Wisconsin. A 1 standard deviation increase in contributions from land-applied manure hauled from animal feeding operations (AFOs) was associated with a 77% (p-value <0.05) increase in the relative abundance of ruminant Bacteroides (BoBac-copies-per-16S-rRNA-copies) in the sediment. This is the first work finding an association between the upstream land-applied manure and the offsite bovine-associated fecal markers. These findings have implications for the sediment as a reservoir for microbial pollution associated with AFOs (e.g., pathogens and antibiotic-resistant bacteria). This framework and application advance statistical analysis in MST and water quality modeling more broadly.

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Section: Results and Discussionmentioning

confidence: 99%

Microbial Find, Inform, and Test Model for Identifying Spatially Distributed Contamination Sources: Framework Foundation and Demonstration of Ruminant Bacteroides Abundance in River Sediments

Wiesner-Friedman

Beattie

Stewart

et al. 2021

Environ. Sci. Technol.

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“…They can also form symbiotic relationships with other organisms, such as plants and animals, and use them as hosts for growth and reproduction. In some cases, fungi can even cause death (Ann et al, 2019;Al-Hayanni et al, 2022). Environmental factors, such as temperature, oxygen levels, and minerals can encourage the growth and diversity of fungi in the region.…”

Section: ____________________________________________________________...mentioning

confidence: 99%

“…After incubation, the parts of insects infected with fungi were transferred to petri dishes containing potato dextrose agar and also incubated for 7 days at a temperature of 25°C in an incubator to diagnose the fungi resulting from the isolation and purification process. The properties and diagnosis of the isolated fungi were studied using a taxonomic key for fungi (Ann et al, 2019;Yu et al, 2021).…”

Section: Isolation Of Fungimentioning

confidence: 99%

Isolation and Identification of Fungi from Some Aquatic Invertebrates in Baghdad Al- Jadryia

Al-Ameen et al.

2024

Egypt. J. of Aquatic Biolo. and Fish.

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A pond is a container for collecting and retaining water, typically an artificial water-filled depression that is low on the ground. It is created by digging a flat area or expanding a natural depression, which can be drained. One of the main characteristics of a pond is its ease of drainage (Dudgeon, 2019). The primary purpose of ponds is to use the process of irrigation for crops, which depends on the management techniques employed. Additionally, ponds can be beneficial in providing aesthetic value to a location (Osman et al., 2013; Almond et al., 2020). Ponds are home to a diverse range of living organisms, including invertebrate animals, aquatic plants, and microorganisms. This diverse community provides a suitable environment for many

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“…A river's importance to civilization is shown by the fact that it provides water for consumption, agriculture, and the removal of human waste. However, in contrast to our understanding of marine and freshwater lake microbiology, the ecological influence of planktonic and attached bacteria within river ecosystems is still understudied and underappreciated 8 . As the primary supply of irrigation for Iraqi land, the Tigris River has significant significance for Iraqi environmental researchers due to the negative impact of pollutants arising from treated and untreated home waste and agricultural pollutants 9 .…”

Section: Introductionmentioning

confidence: 99%

Survey the Microbial Load in the Tigris River in South of Baghdad City and Some of the Physiochemical Parameters

Fatlawy

Mahdii

Kadhim

2022

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This study included an analysis of three stations (Al Dora, Al Za'franiya, and Arab Ejbur) chosen to study the Physiochemical and microorganism (Fungi and Bacteria) loud of the Tigris River in the southern section of Baghdad city. The result of this research shows that the highest temperature recorded in summer in Al Za'franiya was 37Co, while the lowest temperature recorded in winter in Al Dora was 9Co. and the value of pH recorded the highest in summer it was 7.9 in Arab Ejbur, and the lowest value was in winter 7.1 in Al Dora regions, While Total Organic Carbon (TOC) shows the highest values found in the summer was 6.7 Mg L-1in Al Za'franiya Samples, and the lowest values were 2.0 Mg L-1in Arab Ejbur during the winter. The more frequently isolated fungi were Aspergillus niger, and the lowest frequently was Chrysosporium was observed during the survey period. At the same time, Bacteriological analysis of water resources showed that Escherichia coli and Pseudomonas aeruginosa were more frequently isolated bacteria and the lowest frequently bacteria were Klebsiella ornithinolytica and Proteus mirabilis. Keywords. Fungi, Bacteria, Temperature, TOC, pH, Tigris River.

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Interplay between sediment properties and stream flow conditions influences surface sediment organic matter and microbial biomass in a Mediterranean river

Cited by 8 publications

References 53 publications

Microbial Find, Inform, and Test Model for Identifying Spatially Distributed Contamination Sources: Framework Foundation and Demonstration of Ruminant Bacteroides Abundance in River Sediments

Microbial Find, Inform, and Test Model for Identifying Spatially Distributed Contamination Sources: Framework Foundation and Demonstration of Ruminant Bacteroides Abundance in River Sediments

Isolation and Identification of Fungi from Some Aquatic Invertebrates in Baghdad Al- Jadryia

Survey the Microbial Load in the Tigris River in South of Baghdad City and Some of the Physiochemical Parameters

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