Composition and assembly of bacterial communities in surface and deeper sediments from aquaculture-influenced sites in Eastern Lake Taihu, China

Qin, Mengyu; Xu, Huimin; Zeng, Jin; Zhao, Dayong; Yu, Zhigang; Wu, Qinglong L.

doi:10.1007/s00027-020-00755-7

Cited by 11 publications

(3 citation statements)

References 63 publications

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“…During culture stage III, the dominance of the stochastic process over the deterministic process was found in the bacterial communities' assembly. These findings align with previous studies conducted in various aquatic or aquaculture ecosystems, such as ponds, lakes, and recirculating systems, demonstrating the predominance of stochastic processes in controlling bacterial community assembly [21,[72][73][74][75]. However, it is worth noting that aquaculture activities in these natural or artificial ecosystems have a very limited impact on the assembly of bacterial communities [73,75].…”

Section: Bacterial Community Assembly In Paddy Field Influenced By Re...supporting

confidence: 90%

Red Claw Crayfish Cherax quadricarinatus Cultivation Influences the Dynamics and Assembly of Benthic Bacterial Communities in Paddy Fields

Hou,

Jia,

Sun

et al. 2023

Environments

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Red claw crayfish Cherax quadricarinatus has emerged as a highly significant and suitable species to be raised in integrated rice–aquatic animal farming systems. To optimize an integrated aquaculture and agriculture (IAA) system and ensure sustainable utilization and development of land resources, an IAA system combining rice cultivation with red claw crayfish culture was implemented to assess the impacts of rice–red claw crayfish co-culturing on the dynamics and assembly of bacterial communities in paddy soils. We established two experimental groups, each with eight replicates. We utilized 16S rRNA Illumina high-throughput sequencing to access the bacterial community composition and assembly in paddy soils. Red claw crayfish C. quadricarinatus cultivation did not significantly affect the alpha diversity of the bacterial community in the paddy field, but it obviously increased the relative abundances of the phyla Acidobacteriota and Pseudomonadota involved in organic matter degradation and nitrogen, phosphorus, and carbon cycling. Red claw crayfish cultivation could lead to more complex bacterial communities, increased bacterial resistance to disturbances, the promotion of niche differentiation, and increased competition intensity between bacterial communities during the mid-cultivation period. Nitrogen emerged as a critical factor influencing the bacterial community composition in paddy soil during the culture period, and the red claw crayfish cultivation affected the bacterial community by altering the ammonia concentration in the paddy soil. As the culture progressed, the assembly of the bacterial community in the paddy soil was predominantly driven by stochastic processes, and red claw crayfish cultivation accelerated the evolution of the bacterial community assembly towards a stochastic process. Our study offers valuable insights into the dynamic changes occurring in the composition and assembly of bacterial communities in paddy soils in response to red claw crayfish cultivation.

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Section: Bacterial Community Assembly In Paddy Field Influenced By Re...supporting

confidence: 90%

Red Claw Crayfish Cherax quadricarinatus Cultivation Influences the Dynamics and Assembly of Benthic Bacterial Communities in Paddy Fields

Hou,

Jia,

Sun

et al. 2023

Environments

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“…For bacterial communities, stochastic and deterministic processes play important roles in community assembly, with determinism sometimes dominating and stochasticity sometimes more important [ 47 , 48 ]. Furthermore, a greater impact of the deterministic process on bacterial community assembly appeared in human-affected areas with certain environmental variables rather than in the natural environment [ 29 , 49 ]. For example, temperature is one of the main factors regulating the balance of stochastic and deterministic assembly processes in hot spring sediment communities, with differences in temperature increasing the contribution of determinism [ 50 ]; the increasing levels of eutrophication likely enhance the deterministic process of bacterial community assembly [ 51 ].…”

Section: Discussionmentioning

confidence: 99%

pH Drives Differences in Bacterial Community β-Diversity in Hydrologically Connected Lake Sediments

Yuan

Qin

et al. 2023

Microorganisms

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As microorganisms are very sensitive to changes in the lake environment, a comprehensive and systematic understanding of the structure and diversity of lake sediment microbial communities can provide feedback on sediment status and lake ecosystem protection. Xiao Xingkai Lake (XXL) and Xingkai Lake (XL) are two neighboring lakes hydrologically connected by a gate and dam, with extensive agricultural practices and other human activities existing in the surrounding area. In view of this, we selected XXL and XL as the study area and divided the area into three regions (XXLR, XXLD, and XLD) according to different hydrological conditions. We investigated the physicochemical properties of surface sediments in different regions and the structure and diversity of bacterial communities using high-throughput sequencing. The results showed that various nutrients (nitrogen, phosphorus) and carbon (DOC, LOC, TC) were significantly enriched in the XXLD region. Proteobacteria, Firmicutes, and Bacteroidetes were the dominant bacterial phyla in the sediments, accounting for more than 60% of the entire community in all regions. Non-metric multidimensional scaling analysis and analysis of similarities confirmed that β-diversity varied among different regions. In addition, the assembly of bacterial communities was dominated by a heterogeneous selection in different regions, indicating the important influence of sediment environmental factors on the community. Among these sediment properties, the partial least squares path analysis revealed that pH was the best predictor variable driving differences in bacterial communities in different regions, with higher pH reducing beta diversity among communities. Overall, our study focused on the structure and diversity of bacterial communities in lake sediments of the Xingkai Lake basin and revealed that high pH causes the β-diversity of bacterial communities in the sediment to decrease. This provides a reference for further studies on sediment microorganisms in the Xingkai Lake basin in the future.

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“…In 2007, the outbreak of cyanobacteria in Taihu Lake caused the drinking water crisis in Wuxi City. Scholars have conducted a series of studies on the characteristics of biophysical quantity changes [36,37], ecological benefits of water environment management [38][39][40], and factors affecting water environment changes [41][42][43] in Taihu Lake. However, there is still a lack of research on the evaluation of the service value of the Taihu Lake water ecosystem, and few studies combine the water ecological quality of Taihu Lake with ecosystem service value.…”

Section: Introductionmentioning

confidence: 99%

Water Ecosystem Service Quality Evaluation and Value Assessment of Taihu Lake in China

Zhao

Wang

2021

Water

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Taihu Lake is the third largest freshwater lake in China. Water ecosystems play an important role in the survival and development of human society. The evaluation of water ecosystem services is helpful to understand and grasp the changing rules of Taihu Lake’s ecosystem services value in recent years. First, we used the Water Environment Qualities Index (WQI) to evaluate the water ecological quality of Taihu Lake; second, on the basis of the survey data from 2010 to 2018, we combined economic and ecological methods to evaluate the water ecosystem of Taihu Lake. The evaluation system includes four major service functions, 11 second-class evaluation indicators and 19 index factor. Research indicates that, (1) in the past 8 years, the WQI of Taihu Lake increased year by year and Taihu Lake changed from moderate pollution to light pollution; (2) provisioning services are the main service of Taihu Lake’s water ecosystem and the order of various service values was provisioning service value > regulation service value > cultural service value > support service value, with water supply as the core function of provisioning services; and (3) the total values in 2010, 2014, and 2018 were 115.39 billion yuan, 113.31 billion yuan, and 119.96 billion yuan, respectively, showing a trend of first decreasing and then increasing. To a certain extent, the improvement in Taihu Lake’s water ecological quality has led to an increase in the value of regulation services.

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Composition and assembly of bacterial communities in surface and deeper sediments from aquaculture-influenced sites in Eastern Lake Taihu, China

Cited by 11 publications

References 63 publications

Red Claw Crayfish Cherax quadricarinatus Cultivation Influences the Dynamics and Assembly of Benthic Bacterial Communities in Paddy Fields

Red Claw Crayfish Cherax quadricarinatus Cultivation Influences the Dynamics and Assembly of Benthic Bacterial Communities in Paddy Fields

pH Drives Differences in Bacterial Community β-Diversity in Hydrologically Connected Lake Sediments

Water Ecosystem Service Quality Evaluation and Value Assessment of Taihu Lake in China

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