Co-occurrence patterns and environmental factors associated with rapid onset of Microcystis aeruginosa bloom in a tropical coastal lagoon

Tarafdar, Lipika; Mohapatra, Madhusmita Mohanty; Muduli, Pradipta R.; Kumar, Abhishek; Mishra, Deepak R.; Rastogi, Gurdeep

doi:10.1016/j.jenvman.2022.116580

Cited by 13 publications

(4 citation statements)

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“…This study monitored changes in phytoplankton species composition and distribution patterns, with a focus on harmful cyanobacteria such as Microcystis, and found significant correlations with both water temperature and nutrient concentrations. The N/P ratio, water temperature, and HRT were identified as the primary drivers of Microcystis growth in the SHR and were directly linked to the increased proliferation and downstream growth of harmful cyanobacteria [95][96][97][98]. A substantial (23%) improvement in water quality conditions was observed concurrently with Microcystis proliferation, highlighting a direct correlation between these environmental factors and the overall health of the ecosystem.…”

Section: Discussionmentioning

confidence: 95%

Assessing the Impact of Weirs on Water Quality and Phytoplankton Dynamics in the South Han River: A Two-Year Study

Kim,

Cho,

Kim

et al. 2024

Water

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This study investigates the ecological effects of weirs on water quality and phytoplankton communities in the South Han River (SHR) over a two-year period. By focusing on three key weirs—Kangcheon Weir, Yeoju Weir, and Ipo Weir—the research examines how artificial structures influence river hydrodynamics, nutrient cycles, and algal growth patterns. Utilizing water quality measurements, phytoplankton analysis, and environmental factor assessments, the study identifies significant fluctuations in water quality parameters and phytoplankton abundance across the surveyed points. The analysis reveals a direct correlation between environmental conditions such as temperature, flow rates, and nutrient concentrations, particularly nitrogen and phosphorus, and the proliferation of harmful cyanobacteria, notably Microcystis. This research highlights the critical role of comprehensive management strategies that consider hydraulic residence time, nutrient balance, and temperature regulation to mitigate the impacts of weirs on river ecosystems and improve water quality in the SHR.

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Section: Discussionmentioning

confidence: 95%

Assessing the Impact of Weirs on Water Quality and Phytoplankton Dynamics in the South Han River: A Two-Year Study

Kim,

Cho,

Kim

et al. 2024

Water

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“…Network-based approaches provide an integrated representation of interactions among different taxa within microbial communities ( Deng et al., 2012 ). However, studies on the structure of phytoplankton networks are still limited ( Carey et al., 2017 ; Tarafdar et al., 2023 ). Each phytoplankton network constructed in this study represents the covariation in phytoplankton density over time for each stage, with similar responses to environmental changes or interactions among phytoplankton species ( Rottjers and Faust, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

“…It has been reported that networks with small-world structures tend to be more robust to perturbations and random loss of species ( Peura et al., 2015 ). A slightly more positive correlation at stage 3 also suggests that high cooperative interactions among species may result in a more stable community structure and thus more resilient to environmental changes ( Tarafdar et al., 2023 ).…”

Section: Discussionmentioning

confidence: 99%

Daily process and key characteristics of phytoplankton bloom during a low-water level period in a large subtropical reservoir bay

Tan,

Wang,

Cai

2024

Front. Plant Sci.

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Reservoirs, heavily influenced by artificial management, often harbor phytoplankton assemblages dominated by cyanobacteria or dinoflagellates, triggering significant changes in aquatic ecosystems. However, due to limited sampling frequency and insufficient attention to species composition, the bloom processes and key characteristics of phytoplankton community structure have not been systematically elucidated. During the low-water level period when blooms are most likely to occur (June to September) in a tributary bay of the Three Gorges Reservoir, daily sampling was conducted to investigate phytoplankton community composition, identify significant environmental factors, and evaluate important structure characteristics of phytoplankton community. The results showed that Microcystis aeruginosa maintained a clear dominance for almost a month in stage 1, with low Shannon and evenness but a high dominance index. Phytoplankton total density and biomass decreased drastically in stage 2, but Microcystis aeruginosa still accounted for some proportion. The highest Shannon and evenness but the lowest dominance index occurred in stage 3. Peridiniopsis niei occurred massively in stage 4, but its dominant advantages lasted only one to two days. NH4-N was responsible for the dominance of Microcystis aeruginosa, while TP and PO4-P was responsible for the dominance of Peridiniopsis niei; however, precipitation contributed to their drastic decrease or disappearance to some extent. The TN : TP ratio could be considered as an important indicator to determine whether Microcystis aeruginosa or Peridiniopsis niei dominated the phytoplankton community. Throughout the study period, physiochemical factors explained more variation in phytoplankton data than meteorological and hydrological factors. Pairwise comparisons revealed an increase in average β diversity with stage progression, with higher β diversities based on abundance data than those based on presence/absence data. Repl had a greater effect on β diversity differences based on presence/absence data, whereas RichDiff had a greater effect on β diversity differences based on species abundance data. Co-occurrence networks for stage 1 showed the most complex structure, followed by stage 4, while the network for stage 3 was relatively sparse, although the overall community division remained compact. This study provides a useful attempt to explore the status and changes in phytoplankton community structure during the bloom process through high-resolution investigation.

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“…For instance, the swift bloom onset of Microcystis aeruginosa in a coastal lagoon has been linked to elevated total suspended solids, salinity, dissolved inorganic nitrogen, and diminished transparency levels [29]. Other factors that reduce the competitive advantage of toxic Microcystis are high light conditions or environments limited in nitrogen and light [64]. It is worth noting that the colonization of this cyanobacteria depends on physical conditions related to the natural forces that drive water turbulence, even with increasing buoyancy velocities, as some morphospecies form colonies of 100 µm to 1000 µm in diameter due to the excretion of extracellular polysaccharides [65].…”

Section: Discussionmentioning

confidence: 99%

Lipid Prospection Based on the Cellular Size of Phytoplankton Communities from Tropical Freshwater Ecosystems: A Systematic Literature Review

Bautista-Regil,

Sánchez,

Salcedo

et al. 2023

Water

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Eutrophication-resistant phytoplankton communities in freshwater ecosystems have a novel lipid potential to contribute to the development of tropical regions. The question that arises due to the unsustainability of their eutrophicated waters is how the recognition of the lipids of the resident phytoplankton progresses. Our aim was to provide an overview of the pico-, nano- and micro-cellular lipids of phytoplankton with a focus on eutrophic tropical freshwater ecosystems. Using the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) framework, global and Latin American publications were retrieved based on search equations and specific questions. In total, 490 studies were reviewed. The inclusion criteria, in order, were (1) peer-reviewed articles, (2) articles investigating phytoplankton strains or communities from any aquatic environment, (3) articles on freshwater ecosystems, and (4) research in tropical climates. The contribution of freshwater phytoplankton was high and discontinuous, with a representation of 63% in the 21st century. Freshwater themes were resolved in the ecological context with phytoplankton or algae keywords, while microalgae were targeted using resource use keywords. On the tropical scale, technological themes on lipid microalgae were related to fatty acids, biofuels, biodiesel, antioxidants, and recombinant DNA. It is concluded that studies of the lipid composition of phytoplankton communities are delayed in the case of eutrophic tropical freshwater ecosystems.

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Co-occurrence patterns and environmental factors associated with rapid onset of Microcystis aeruginosa bloom in a tropical coastal lagoon

Cited by 13 publications

References 100 publications

Assessing the Impact of Weirs on Water Quality and Phytoplankton Dynamics in the South Han River: A Two-Year Study

Assessing the Impact of Weirs on Water Quality and Phytoplankton Dynamics in the South Han River: A Two-Year Study

Daily process and key characteristics of phytoplankton bloom during a low-water level period in a large subtropical reservoir bay

Lipid Prospection Based on the Cellular Size of Phytoplankton Communities from Tropical Freshwater Ecosystems: A Systematic Literature Review

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