Biogeographic distribution patterns of algal community in different urban lakes in China: Insights into the dynamics and co-existence

Zhang, Haihan; Zong, Rongrong; He, Hao; Liu, Kaiwen; Yan, Miaomiao; Miao, Yutian; Ma, Ben; Huang, Xin

doi:10.1016/j.jes.2020.07.024

Cited by 58 publications

(15 citation statements)

References 59 publications

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“…The environmental factors subset was obtained by the maximum Pearson correlation coefficient of the distribution difference between the environmental factors and the sample communities. The samples and environmental factors were reflected on the same two-dimensional ranking chart by CANOCO software (version 4.5, Wageningen, Netherlands), and a Monte Carlo permutation test with 999 permutations was used to analyze the significance of the parameters (Zhang et al, 2021b). Based on bacterial 16S rRNA gene sequences, the metabolic functions were predicted using Phylogenetic Investigation of Communities by Reconstruction of Unobserved States (PICRUSt) version 1.1.0 6 .…”

Section: Discussionmentioning

confidence: 99%

Vertical Distribution of Bacterial Community in Water Columns of Reservoirs With Different Trophic Conditions During Thermal Stratification

Yue

Cai

Tang

et al. 2021

Front. Environ. Sci.

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Water eutrophication is a global ecological issue, and thermal stratification of water bodies can enable eutrophication. We examined bacterial communities in the stratified water columns and sediments in two different trophic reservoirs along the Wujiang River using quantitative real-time PCR and high-throughput sequencing. Bacterial 16S rRNA gene copies varied from 3.70 × 107 to 5.27 × 108 copies/L in the water column of Hongjiadu (HJD) Reservoir (60 m water depth) with slightly stratified variation; while in Wujiangdu (WJD) Reservoir (70 m water depth), bacterial abundance decreased markedly from the surface to the bottom(1.74 × 109 to 2.38 × 107 copies/L). The vertical distribution patterns of bacteria in both reservoirs resembled those of water Chlorophyll a (Chla) concentrations. The abundance was negatively correlated with water depth (D), total nitrogen (TN), nitrate (NO3–-N), and positively correlated with water temperature (T) and dissolved oxygen (DO) level. In contrast, the alpha diversity of bacteria showed the opposite trend in the vertical water column. Proteobacteria, Actinobacteria, and Bacteroidetes were the predominant phyla in the water column of both reservoirs. Compared to WJD Reservoir, HJD Reservoir displayed marked vertical spatial difference in bacterial community structure during thermal stratification. In particular, Pseudomonas was frequently detected at the bottom of the HJD Reservoir. These results were consistent with predictive metagenomic profiling that revealed different vertical functional variation patterns of the bacterial communities in the two reservoirs. The bacterial community structure of HJD Reservoir was associated with water D, ammonium (NH4+-N), nitrite (NO2–-N), and total phosphorus (TP). The community structure of WJD Reservoir was related to water T, Chla, NO3–-N, and TN. The findings highlighted the important roles played by thermal stratification and nutrients in shaping the water bacterial community structure. Additionally, the absolute abundance of water nitrifiers (AOB gene copies) and denitrifiers (narG, nirS, norB, and nosZ gene copies) displayed significant vertical differences in the water columns of both reservoirs. Gene copies involved in denitrification were significantly higher than those involved in nitrification. Water phosphorus and nitrogen contents were important variables influencing the absolute abundance of ammonia oxidizers and denitrifying bacteria, respectively. Our study revealed that the emergence of thermal stratification was responsible for the vertical stratification of bacteria in water and affected the bacterial community structure together with nutrients.

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Section: Discussionmentioning

confidence: 99%

Vertical Distribution of Bacterial Community in Water Columns of Reservoirs With Different Trophic Conditions During Thermal Stratification

Yue

Cai

Tang

et al. 2021

Front. Environ. Sci.

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“…Low pH inhibits the oxidation process of ammonia and nitrite in waters where the optimal pH is 7 and 7.5 [11]. Nutrition and pH are also significant factors in eutrophication [12]. The highest COD result is at point 3 compared to all measurement points, although it still meets the standard.…”

Section: Resultsmentioning

confidence: 92%

Water Quality Status and Water Quality Index of Selulu Reservoir, East Kalimantan, Indonesia

Pramaningsih

Purwanto

Yuliawati

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Selulu Reservoir is located in Waru District, North Panajam Paser Regency. It is one of the tourist destinations in supporting the tourism sector. Land use changes and urbanization have potential impacts on the environment. This study aimed to determine Water Quality Status and Water Quality Index (WQI) in Selulu Reservoir. Hopefully, the result will become the basis for future reservoir management to keep the water quality well. The method in this study used the survey method. These research steps include surveys, water samples, laboratory analysis, and data analysis. Parameters analyzed include temperature, pH, BOD, COD, and DO. The results showed that the reservoir’s water quality in all samples still met the standard, except for pH at point 3. The difference fluctuating value found in COD at point 3, although it still meets the standard. This location is close to residential areas that dump their waste into the reservoir. The Water Quality Status of the reservoir still meets the standards, and WQI is in the excellent category. This is due to the dominant land use of forest and plantations with few settlements around the reservoir, domestic waste is small, and the reservoir capacity is still supportive. Management is needed to maintain reservoir water quality in the future.

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“…A prominent example for coastal eutrophication is the Baltic Sea (Murray et al, 2019). The effect of eutrophication on urban lakes is also severe, as − -N are one of the primary factors determining the algal community composition (Zhang et al, 2021). Additionally, in many regions where groundwater is used as a drinking water resource, NO 3 − concentrations above the WHO recommended maximum of 50 mg L −1 require costly ex situ methods of NO 3 − removal (Karanasios et al, 2010) or blending with less polluted water to ensure drinking water quality.…”

Section: Introductionmentioning

confidence: 99%

Strategies to Overcome Intermediate Accumulation During in situ Nitrate Remediation in Groundwater by Hydrogenotrophic Denitrification

et al. 2021

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Bioremediation of polluted groundwater is one of the most difficult actions in environmental science. Nonetheless, the clean-up of nitrate polluted groundwater may become increasingly important as nitrate concentrations frequently exceed the EU drinking water limit of 50 mg L–1, largely due to intensification of agriculture and food production. Denitrifiers are natural catalysts that can reduce increasing nitrogen loading of aquatic ecosystems. Porous aquifers with high nitrate loading are largely electron donor limited and additionally, high dissolved oxygen concentrations are known to reduce the efficiency of denitrification. Therefore, denitrification lag times (time prior to commencement of microbial nitrate reduction) up to decades were determined for such groundwater systems. The stimulation of autotrophic denitrifiers by the injection of hydrogen into nitrate polluted regional groundwater systems may represent a promising remediation strategy for such environments. However, besides high costs other drawbacks, such as the transient or lasting accumulation of the cytotoxic intermediate nitrite or the formation of the potent greenhouse gas nitrous oxide, have been described. In this article, we detect causes of incomplete denitrification, which include environmental factors and physiological characteristics of the underlying bacteria and provide possible mitigation approaches.

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Biogeographic distribution patterns of algal community in different urban lakes in China: Insights into the dynamics and co-existence

Cited by 58 publications

References 59 publications

Vertical Distribution of Bacterial Community in Water Columns of Reservoirs With Different Trophic Conditions During Thermal Stratification

Vertical Distribution of Bacterial Community in Water Columns of Reservoirs With Different Trophic Conditions During Thermal Stratification

Water Quality Status and Water Quality Index of Selulu Reservoir, East Kalimantan, Indonesia

Strategies to Overcome Intermediate Accumulation During in situ Nitrate Remediation in Groundwater by Hydrogenotrophic Denitrification

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