Cascade dam impoundments restrain the trophic transfer efficiencies in benthic microbial food web

Yang, Nan; Li, Yang; Zhang, Wenlong; Lin, Lijin; Bao, Qing; Wang, Long-Fei; Niu, Lihua; Zhang, Huanjun

doi:10.1016/j.watres.2019.115351

Cited by 44 publications

(13 citation statements)

References 54 publications

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“…Here, we compare the characteristics of the proposed optofluidic platform with the commercial equipment and other research work, and the details are listed in Figure . , It can be found that the pretreatment time of the proposed microreactor is much shorter than those of other methods, and its accuracy is greatly improved compared with the previous work, which could satisfy the requirements of subsequent online detection. In addition, the size and the consumption of reagents possess the absolute advantage among all of the suggested solutions.…”

Section: Resultsmentioning

confidence: 99%

Photothermal Localization in an Optofluidic Microreactor for Rapid Pretreatment toward Online Pollutant Analysis

Wan

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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The realization of high-efficient digestion in a microfluidic reactor is considered to be advantageous for pretreatment toward online pollutant detection. However, it is difficult to achieve satisfactory device performance due to the gap between the low digestion reaction efficiency and the demand for rapid pretreatment for online detection. Herein, we design and manufacture an optofluidic microreactor combined with a MnO 2 nanofilm localizing the heat inside the reaction chamber under solar irradiation, which contributes a lot to the on-chip nutrient digestion efficiency enhancement. The overall temperature of the water sample in the reactor chamber can be dramatically increased in a fleeting time of less than 1 s and maintained at 78 °C. The digestion rate constant of the microreactor is improved by about 100 times compared with that obtained by the traditional method in the national standard, which is attributed to temperature enhancement and various oxidation reactions in the heated reaction chamber. Notably, when pretreating the actual total phosphorus water samples, the digestion efficiency is demonstrated to be higher than 95% within 12 s under solar light irradiation. The optofluidic platform brings many benefits to accelerate the various photochemically enhanced reactions using solar light and is extremely adapted for rapid pretreatment of biochemical samples to further develop their online analysis.

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Section: Resultsmentioning

confidence: 99%

Photothermal Localization in an Optofluidic Microreactor for Rapid Pretreatment toward Online Pollutant Analysis

Wan

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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“…Manipulated abiotic conditions in impoundments were further associated with temperature-related changes of growth patterns (i.e., younger age of maturity and smaller individual sizes) (Reed et al 1992). For example, another study by Yang et al (2020) showed reduced energy transfer efficiency in impoundments, suggesting potential energetic bottlenecks of fish at higher trophic levels. In impoundments altered hydromorphological conditions have caused increased predation, most likely because of the novel environment, lack of navigation cues for diadromous species (Agostinho et al 2002;Jepsen et al 2000;Tiffan et al 2016) and the resulting migration delay (Larinier 2001;Larinier and Travade 2002) and reinforce negative impacts of introduced predators (Pelicice and Agostinho 2009).…”

Section: Upstream Flow Alterationsmentioning

confidence: 99%

Impacts and Risks of Hydropower

Treeck

Geist

Pander

et al. 2022

Novel Developments for Sustainable Hydropower

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This chapter very briefly outlines site and constellation specific direct and indirect impacts of a hydropower scheme primarily on fishes. It describes potential effects of single elements of a hydropower scheme, such as available migration routes up- and downstream, impoundment, hydraulic head, turbine type and mode of operation. It summarises the state of knowledge, points out knowledge gaps and indicates potential mitigation options.

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“…The concentrations of TN, total phosphorus (TP), and ammonia nitrogen (NH 3 -N) were measured using standard methods described in a previous study. [19] Three replicates were used for all the above parameters tested.…”

Section: Physicochemical Analysismentioning

confidence: 99%

Longitudinal Patterns of Microbial Communities in the Water Diversion Rivers of South‐to‐North Water Diversion Project

Cai

Huang

et al. 2022

CLEAN Soil Air Water

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Water diversion rivers are the fundamental transport lines in water diversion projects. The changeable hydrological and physicochemical conditions lead to significant changes in biogeographical characteristics of microbial communities within river catchments. This study gives an insight into longitudinal patterns of the composition and diversity characteristics of microbial communities in water diversion rivers in the East Route of the South‐to‐North Water Diversion Project using 16S rRNA sequencing. A total of 937 743 microbial sequence reads are obtained and classified into 9178 distinct operational taxonomic units, belonging to 48 phyla and 424 genera, respectively. Along the water diversion line, obvious distribution characteristics of microbial communities could be observed in Actinobacteria, Firmicutes, Exiguobacterium, CL500‐29_marine_group, Acinetobacter, and Cloacibacterium. The relative abundance of both Actinobacteria and CL500‐29_marine_group increases from the upper rivers in the northern region to the lower rivers in the southern region, while Firmicutes and Exiguobacterium show the opposite trend. Higher microbial diversity is found in the upper rivers of the water diversion line than in the lower rivers. Externally, redundant analysis indicated the spatial shift in microbial community is largely shaped by ammonium, total nitrogen, conductivity, and total phosphorus. Internally, longitudinal construction of the microbial community is mainly affected by species replacement.

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Cascade dam impoundments restrain the trophic transfer efficiencies in benthic microbial food web

Cited by 44 publications

References 54 publications

Photothermal Localization in an Optofluidic Microreactor for Rapid Pretreatment toward Online Pollutant Analysis

Photothermal Localization in an Optofluidic Microreactor for Rapid Pretreatment toward Online Pollutant Analysis

Impacts and Risks of Hydropower

Longitudinal Patterns of Microbial Communities in the Water Diversion Rivers of South‐to‐North Water Diversion Project

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