10. Control and management of Harmful Algal Blooms

Barrington, Dani; Xiao, Xi; Coggins, Liah X.; Ghadouani, Anas

doi:10.1515/9783110333596-012

Cited by 3 publications

(2 citation statements)

References 94 publications

(109 reference statements)

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“…Inhibiting the growth of undesired cyanobacteria species is crucial for controlling HAB. Moreover, it is most important to prevent the development of HAB, since this will prevent or weaken the tremendous and widespread impact of HAB on human and environmental health, natural and man-made assets, as well as overall ecosystem services [14]. Suppressing of cyanobacteria (and algae of phytoplankton) by allelochemicals released by aquatic macrophytes is reported to be one of the natural mechanisms that maintain a prosperous and clear-water state in aquatic ecosystems (first of all, in shallow lakes and ponds) [15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

The Use of Fluorescence Microscopy to Assess the Suppression of the Development of Cyanobacteria under the Influence of Allelochemicals of Aquatic Macrophytes

Курашов¹,

Kapustina²,

Krylova³

et al. 2020

Fluorescence Methods for Investigation of Living Cells and Microorganisms

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The luminescent microscopy (LM) is especially convenient for express analysis of the toxicity of various substances or for detecting the degree of inhibition of the physiological state of cyanobacteria populations as a result of the action of certain chemical compounds on them. In natural water bodies, the suppression of the development of the phytoplankton occurs, in particular, under the influence of low-molecular-weight organic compounds (LMWOCs), metabolites-allelochemicals, of aquatic macrophytes. LM, which allows observing the primary or secondary luminescence of microorganisms, was used by us to study changes in the physiological state of the cyanobacteria cultures of Synechocystis aquatilis and Aphanizomenon flos-aquae under the influence of allelochemicals of water macrophytes in laboratory experiments. We have shown (including using LM) that selected LMWOCs (linoleic, heptanoic, octanoic, tetradecanoic, hexadecanoic, and gallic acids) possess inhibitory allelopathic activity against cyanobacteria. However, their inhibitory effect was different. The highest values of the suppression index (SI > 10) were recorded (in ascending order) for hexadecanoic, linoleic, tetradecanoic, and gallic acids and a mixture of four allelochemicals (heptanoic, octanoic, tetradecanoic, and gallic acids). The creation of a new generation of algaecides/cyanocides based on LMWOCs of aquatic plants is a very promising strategy for combating "algal blooms."

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Section: Introductionmentioning

confidence: 99%

The Use of Fluorescence Microscopy to Assess the Suppression of the Development of Cyanobacteria under the Influence of Allelochemicals of Aquatic Macrophytes

Курашов¹,

Kapustina²,

Krylova³

et al. 2020

Fluorescence Methods for Investigation of Living Cells and Microorganisms

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“…Their implementation is triggered by the detection of a pollution event. Alert level frameworks differentiate between the seriousness of consequences that arise from a range of exposures, allowing managers to progressively adapt their response by restricting access, passive monitoring or active treatment (e.g., [ 5 , 6 , 7 , 8 , 9 , 10 ]). Their focus is to facilitate response management in that they serve to identify actions to be put into place to reduce the acute risks posed by the immediate, detected occurrence of pollution.…”

Section: Introductionmentioning

confidence: 99%

Development of Toxicological Risk Assessment Models for Acute and Chronic Exposure to Pollutants

Reichwaldt

Stone

Barrington

et al. 2016

Toxins

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Alert level frameworks advise agencies on a sequence of monitoring and management actions, and are implemented so as to reduce the risk of the public coming into contact with hazardous substances. Their effectiveness relies on the detection of the hazard, but with many systems not receiving any regular monitoring, pollution events often go undetected. We developed toxicological risk assessment models for acute and chronic exposure to pollutants that incorporate the probabilities that the public will come into contact with undetected pollution events, to identify the level of risk a system poses in regards to the pollutant. As a proof of concept, we successfully demonstrated that the models could be applied to determine probabilities of acute and chronic illness types related to recreational activities in waterbodies containing cyanotoxins. Using the acute model, we identified lakes that present a ‘high’ risk to develop Day Away From Work illness, and lakes that present a ‘low’ or ‘medium’ risk to develop First Aid Cases when used for swimming. The developed risk models succeeded in categorising lakes according to their risk level to the public in an objective way. Modelling by how much the probability of public exposure has to decrease to lower the risks to acceptable levels will enable authorities to identify suitable control measures and monitoring strategies. We suggest broadening the application of these models to other contaminants.

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Nanobody-Dependent Detection of Microcystis aeruginosa by ELISA and Thermal Lens Spectrometry

Folorunsho

Oloketuyi

Mazzega

et al. 2021

Appl Biochem Biotechnol

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10. Control and management of Harmful Algal Blooms

Cited by 3 publications

References 94 publications

The Use of Fluorescence Microscopy to Assess the Suppression of the Development of Cyanobacteria under the Influence of Allelochemicals of Aquatic Macrophytes

The Use of Fluorescence Microscopy to Assess the Suppression of the Development of Cyanobacteria under the Influence of Allelochemicals of Aquatic Macrophytes

Development of Toxicological Risk Assessment Models for Acute and Chronic Exposure to Pollutants

Nanobody-Dependent Detection of Microcystis aeruginosa by ELISA and Thermal Lens Spectrometry

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