Comprehensive Insights into Harmful Algal Blooms: A Review of Chemical, Physical, Biological, and Climatological Influencers with Predictive Modeling Approaches

Journal of Environmental Engineering, Journal Year: 2024, Volume and Issue: 150(4)

Published: Feb. 9, 2024

Phytoplankton plays an essential role in the biogeochemical cycle because it is at top of food chain and a source oxygen. Eutrophication causes coastal areas to deteriorate as industrialization accelerates, leading harmful algal blooms (HABs), severely affecting human ecological health. The frequency extent HAB events potentially may increase due climate change. outbreaks have led substantial losses for major economies globally, therefore emerged critical research focus environmental sciences. However, lack overview diverse factors influencing HABs complicates cause identification effective countermeasure development occurrence, thereby impeding formulation targeted strategies prediction mitigation. Therefore, this review summarizes influential areas, including water quality (nutrients, salinity, stratification, biological factors) climatological (temperature, pH pCO2, irradiance light). Recent work with several algae species suggested that warmer temperatures combined nutrient variation, stronger ocean acidification growth some toxic dinoflagellate species. Although effects vary different locations, intensification anthropogenic activities change likely will frequency, outbreak scale, severity most HABs. Because predicting crucial understanding synergy their minimizing decision makers stakeholders, we reviewed models HABs, process-based models, traditional statistical-empirical data-driven machine learning models. Predicting becomes more challenging spatial distribution influenced by future patterns. This paper presents comprehensive various impacting serving valuable resource researchers design mitigation strategies.

Language: Английский

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Assessing the ecological impact of pesticides/herbicides on algal communities: A comprehensive review

Aquatic Toxicology, Journal Year: 2024, Volume and Issue: 268, P. 106851 - 106851

Published: Jan. 28, 2024

Language: Английский

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Phosphorus depletion is exacerbated by increasing nitrogen loading in the Bohai sea

Environmental Pollution, Journal Year: 2024, Volume and Issue: 352, P. 124119 - 124119

Published: May 6, 2024

Language: Английский

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Nutrient changes in the Bohai Sea over the past two decades

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 903, P. 166696 - 166696

Published: Sept. 1, 2023

Language: Английский

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Modeling of algal blooms: Advances, applications and prospects

Ocean & Coastal Management, Journal Year: 2024, Volume and Issue: 255, P. 107250 - 107250

Published: June 24, 2024

Language: Английский

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Prediction on daily spatial distribution of chlorophyll-a in coastal seas using a synthetic method of remote sensing, machine learning and numerical modeling

The Science of The Total Environment, Journal Year: 2023, Volume and Issue: 910, P. 168642 - 168642

Published: Nov. 20, 2023

Language: Английский

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Trace Metals in Phytoplankton: Requirements, Function, and Composition in Harmful Algal Blooms

Published: May 13, 2024

In a constantly changing environment brought about by the climate crisis and escalated anthropogenic perturbations driven growing population, harmful algal bloom dynamics their impacts are expected to shift, necessitating adaptive management strategies comprehensive research efforts. Similar primary productivity, HABs have been thought be primarily major nutrients such as N, P, Si. However, recent investigations on role importance of micronutrients limiting factors in aquatic environments highlighted. This paper provides review metal phytoplankton interactions, with specific emphasis pertinent information influence trace growth, toxin production, other underlying mechanisms related HABs. Low near-depleted levels essential including Fe, Cu, Zn, Se, Mn, Co, Mo, negatively impact cell growth proliferation various marine freshwater HAB species. evidence shows that at elevated levels, these elements along non-essential ones, could still cause toxic effects certain species manifested decreased photosynthetic activities, oxidative stress, ultrastructure damage, cyst formation. Interestingly, while metals mostly result increased Co (i.e., yessotoxins, gymnodimine, palytoxins) Mn isodomoic acid, okadaic diol esters) enrichments revealed otherwise. addition releasing dissolved organic matter (DOM) carbon (DOC) humic substances was observed an adaptation strategy, since compounds proven chelate water column, thereby reducing metal-induced toxicity. Whilst current center free toxicity Cu account how contribute metabolic processes under conditions reflective in-situ scenarios HAB-prone areas, would yield new perspectives roles With demands global population for food security sustainability, substantial pressure is exerted agriculture aquaculture sector, highlighting need effective communication regarding interactions macro- improve existing policies practices.

Language: Английский

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Enhancement of adsorption of cyanobacteria, Microcystisa aeruginosaby bacterial-based compounds

Chemosphere, Journal Year: 2024, Volume and Issue: 361, P. 142430 - 142430

Published: June 4, 2024

Language: Английский

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Mapping Harmful Algae Blooms: The Potential of Hyperspectral Imaging Technologies

Remote Sensing, Journal Year: 2025, Volume and Issue: 17(4), P. 608 - 608

Published: Feb. 11, 2025

Harmful algae blooms (HABs) pose critical threats to aquatic ecosystems and human economies, driven by their rapid proliferation, oxygen depletion capacity, toxin release, biodiversity impacts. These blooms, increasingly exacerbated climate change, compromise water quality in both marine freshwater ecosystems, significantly affecting life coastal economies based on fishing tourism while also posing serious risks inland bodies. This article examines the role of hyperspectral imaging (HSI) monitoring HABs. HSI, with its superior spectral resolution, enables precise classification mapping diverse species, emerging as a pivotal tool environmental surveillance. An array HSI techniques, algorithms, deployment platforms are evaluated, analyzing efficacy across varied geographical contexts. Notably, sensor-based studies achieved up 90% accuracy, regression-based chlorophyll-a (Chl-a) estimations frequently reaching coefficients determination (R2) above 0.80. quantitative findings underscore potential for robust HAB diagnostics early warning systems. Furthermore, we explore current limitations future management, highlighting strategic importance addressing growing economic challenges posed paper seeks provide comprehensive insight into HSI’s capabilities, fostering integration global strategies against proliferation.

Language: Английский

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Molecular diversity and potential ecological risks of toxic HAB species in the coastal waters off Qinhuangdao, China

Environmental Pollution, Journal Year: 2025, Volume and Issue: unknown, P. 126121 - 126121

Published: March 1, 2025

Language: Английский

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