Climate and landscape changes enhance the global spread of a bloom-forming dinoflagellate related to fish kills and water quality deterioration

Macêdo, Rafael Lacerda; Franco, Ana Clara Sampaio; Russo, Philip L.; Collart, Tim; Mammola, Stefano; Branco, Christina Wyss Castelo; Santos, Luciano Neves dos

doi:10.1016/j.ecolind.2021.108408

Cited by 5 publications

(1 citation statement)

References 98 publications

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“…Dinoflagellate is an important basic part of the food chain in modern oceans, and it is also a major oxygen producer. It also widely exists in freshwater and brackish lakes and other water bodies [52,53]. Ochrophyta mostly live in seawater bodies along the coast of the mainland, and are rare in fresh water [54].…”

Section: Succession Of Microbial Community Structure In the Undergrou...mentioning

confidence: 99%

The Microbial Community Composition and Nitrogen Cycling Metabolic Potential of an Underground Reservoir in Rizhao, Shandong Province, China

Chen,

Cao,

Zhang

et al. 2024

Water

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Constructing underground reservoirs has emerged as a crucial strategy to address the shortage of fresh water in Rizhao, Shandong Province, China. However, the water quality, microbial community composition, and biogeochemical cycling of nutrients in underground reservoirs compared to raw water remain unknown. To unveil the characteristics of microbial community structures and their nitrogen cycling metabolic potential in coastal underground reservoirs, we utilized a functional gene array (GeoChip 5.0) in conjunction with high-throughput sequencing of 16S rRNA and 18S rRNA genes. Our findings indicate that the water quality in the underground reservoir exhibits a certain degree of eutrophication compared to raw water, with higher concentrations of TN, TP, NO3−N, NO2−-N, and Chl a, but lower concentrations of DO and NH4+-N. The alpha diversity of bacterial and microeukaryotic communities was significantly lower in the underground reservoir. The bacterial community presented a stronger correlation with environmental factors than the microeukaryotic community. Regarding the relative abundance of bacterial communities, Gammaproteobacteria dominated the bacterial community in raw water, while Gammaproteobacteria and Alphaproteobacteria dominated the bacterial community in underground reservoir water. Additionally, the relative abundance of Nitrospirae was noticeably higher in the underground reservoir water. Moreover, we found significantly higher sequence abundance of the archaea Thaumarchaeota in the underground reservoir. Furthermore, our analysis revealed that, except for the amoA functional gene, which significantly increased the metabolic potential of nitrification, the metabolic potential of other microbial nitrogen functional genes was significantly reduced. This reduction may contribute to the lower concentration of NH4+-N in the underground reservoir. This study provides a comprehensive understanding of the microbial community characteristics and their nitrogen cycling metabolic potential in underground reservoirs. It serves as a valuable reference for water source selection, the formulation of water quality assurance measures, and the construction and management of underground reservoirs for subsequent impounding.

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Section: Succession Of Microbial Community Structure In the Undergrou...mentioning

confidence: 99%

The Microbial Community Composition and Nitrogen Cycling Metabolic Potential of an Underground Reservoir in Rizhao, Shandong Province, China

Chen,

Cao,

Zhang

et al. 2024

Water

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Comprehensive risk assessment of algae and shellfish in the middle route of South-to-North Water Diversion Project

Yan

Feng

et al. 2022

Environ Sci Pollut Res

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Since the main canal of the Middle Route of South-to-North Water Diversion Project was put into operation, the species, quantity and biomass of algae and shellfish have responded quickly to the environment, and a single dominant species has appeared in the community, demonstrating the remarkably abnormal proliferation property of algae and shellfish. In order to evaluate the safety risk of abnormal proliferation of algae and shellfish in the Middle Route and realize dynamic analysis of all kinds of influencing factors, a comprehensive risk evaluation system of algae and shellfish in the Middle Route of South-to-North Water Diversion Project based on comprehensive weighting and Four-Element Connection Number (MCEN) was constructed by integrating the Analytic Hierarchy Process (AHP) and the weight assignment theory of CRITIC. The system consists of 21 evaluation indexes selected from risk factors and carriers. Taking Henan section in the Middle Route as an example, comprehensive risk evaluation system of algae and shellfish in the Middle Route of South-to-North Water Diversion Project was applied to calculate the partial connection number of each order and obtain the risk development trend of each indicator. The results showed that algae and shellfish in the Middle Route were in a very safe state at the safety risk level of level Ⅰ. Finally, reasonable measures to reduce the risks facing algae and shellfish in the Middle Route of South-to-North Water Diversion Project are given, which effectively make up the deficiency of existing evaluation methods.

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First report of the invasive Ceratium furcoides (dinoflagellate) in Paracambi Reservoir, Rio de Janeiro: Risks to the world's largest domestic water treatment plant

et al. 2022

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Climate and landscape changes enhance the global spread of a bloom-forming dinoflagellate related to fish kills and water quality deterioration

Cited by 5 publications

References 98 publications

The Microbial Community Composition and Nitrogen Cycling Metabolic Potential of an Underground Reservoir in Rizhao, Shandong Province, China

The Microbial Community Composition and Nitrogen Cycling Metabolic Potential of an Underground Reservoir in Rizhao, Shandong Province, China

Comprehensive risk assessment of algae and shellfish in the middle route of South-to-North Water Diversion Project

First report of the invasive Ceratium furcoides (dinoflagellate) in Paracambi Reservoir, Rio de Janeiro: Risks to the world's largest domestic water treatment plant

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