A survey of toxicity of cyanobacterial blooms in Lake Ladoga and adjacent water bodies

Hydrobiologia ◽  
1996 ◽  
Vol 322 (1-3) ◽  
pp. 149-151 ◽  
Author(s):  
Boris V. Gromov ◽  
Alexey A. Vepritsky ◽  
Kira A. Mamkaeva ◽  
Lyudmila N. Voloshko
Keyword(s):  
Water Bodies ◽  
Cyanobacterial Blooms ◽  
Lake Ladoga ◽  
Adjacent Water

A survey of toxicity of cyanobacterial blooms in Lake Ladoga and adjacent water bodies

1996 ◽  
pp. 149-151 ◽  
Author(s):  
Boris V. Gromov ◽  
Alexey A. Vepritsky ◽  
Kira A. Mamkaeva ◽  
Lyudmila N. Voloshko
Keyword(s):  
Water Bodies ◽  
Cyanobacterial Blooms ◽  
Lake Ladoga ◽  
Adjacent Water

Estimation of the occurrence of certain algal parasites in Lake Ladoga and adjacent water bodies

2002 ◽  
Vol 107 ◽  
pp. 173-180
Author(s):  
Boris V. Gromov ◽  
Kira A. Mamkaeva ◽  
Alla V. Pljusch ◽  
Ludmila N. Voloshko ◽  
Maria A. Mamkaeva
Keyword(s):  
Water Bodies ◽  
Lake Ladoga ◽  
Adjacent Water

scholarly journals Chemical Incident Analysis Involving Storage of Fertilizer Product

2021 ◽  
Vol 38 (1) ◽  
Author(s):  
Rogerio De Medeiros Tocantins ◽  
Bettina Tomio Heckert ◽  
Rafael Salum de Oliveira ◽  
Hélio João Coelho ◽  
Gisele Chibinski Parabocz ◽  
...  
Keyword(s):  
Chemical Reaction ◽  
Water Bodies ◽  
Reaction Products ◽  
Future Studies ◽  
Adjacent Water ◽  
Forensic Engineering ◽  
Fertilizer Material ◽  
The City ◽  
Incident Analysis

A forensic engineering analyses of a chemical incident is presented that was classified as a self-sustaining decomposition (SSD) event, which occurred in a load of 10,000 tons of NK 21-00-21 fertilizer bulk stored inside a warehouse in the city of São Francisco do Sul in Brazil. The chemical reaction developed within the fertilizer mass and took several days to be controlled, resulting in the evacuation of thousands of residents. The water used to fight against the reaction, after having contact with the load of fertilizer material, promoted changes in adjacent water bodies, causing the death of animals (fish, crustaceans, and amphibians). The smoke from the chemical reaction products damaged the incident’s surrounding vegetation. Large SSD events are rare, with an average worldwide frequency of one every three years. Therefore, in addition to presenting a case study of this type of phenomenon, the main objective of this work is to discuss the causes that led to SSD reaction at this event, evaluate its consequences, and motivate future studies.

scholarly journals Exploring How Cyanobacterial Traits Affect Nutrient Loading Thresholds in Shallow Lakes: A Modelling Approach

Water ◽  
2020 ◽  
Vol 12 (9) ◽  
pp. 2467 ◽  
Author(s):  
Manqi Chang ◽  
Sven Teurlincx ◽  
Jan Janse ◽  
Hans Paerl ◽  
Wolf Mooij ◽  
...  
Keyword(s):  
Water Quality ◽  
Nitrogen Fixation ◽  
Shallow Lakes ◽  
Lake Restoration ◽  
Nutrient Loading ◽  
Ecosystem Model ◽  
Water Bodies ◽  
Cyanobacterial Blooms ◽  
Eutrophic Water ◽  
Modelling Approach

Globally, many shallow lakes have shifted from a clear macrophyte-dominated state to a turbid phytoplankton-dominated state due to eutrophication. Such shifts are often accompanied by toxic cyanobacterial blooms, with specialized traits including buoyancy regulation and nitrogen fixation. Previous work has focused on how these traits contribute to cyanobacterial competitiveness. Yet, little is known on how these traits affect the value of nutrient loading thresholds of shallow lakes. These thresholds are defined as the nutrient loading at which lakes shift water quality state. Here, we used a modelling approach to estimate the effects of traits on nutrient loading thresholds. We incorporated cyanobacterial traits in the process-based ecosystem model PCLake+, known for its ability to determine nutrient loading thresholds. Four scenarios were simulated, including cyanobacteria without traits, with buoyancy regulation, with nitrogen fixation, and with both traits. Nutrient loading thresholds were obtained under N-limited, P-limited, and colimited conditions. Results show that cyanobacterial traits can impede lake restoration actions aimed at removing cyanobacterial blooms via nutrient loading reduction. However, these traits hardly affect the nutrient loading thresholds for clear lakes experiencing eutrophication. Our results provide references for nutrient loading thresholds and draw attention to cyanobacterial traits during the remediation of eutrophic water bodies.

Stepwise strategy for monitoring toxic cyanobacterial blooms in lentic water bodies

2017 ◽  
Vol 189 (12) ◽  
Author(s):  
Inês P. E. Macário ◽  
Bruno B. Castro ◽  
Isabel M. S. Nunes ◽  
Cristina Pizarro ◽  
Carla Coelho ◽  
...  
Keyword(s):  
Water Bodies ◽  
Cyanobacterial Blooms ◽  
Lentic Water

scholarly journals Occurrence of Toxigenic Microcystis spp in Major Water Bodies of North East India

2020 ◽  
Vol 5 (2) ◽  
pp. 87-92
Author(s):  
Jadab Rajkonwar ◽  
Ajitabh Bora ◽  
Pichili Vijaya Bhaskar Reddy ◽  
Sanjai Kumar Dwivedi
Keyword(s):  
Water Bodies ◽  
Cyanobacterial Blooms ◽  
Ecological Problem ◽  
Diverse Range ◽  
Elisa Kit ◽  
North East India ◽  
North East ◽  
Rdna Sequencing ◽  
Harmful Cyanobacterial Blooms ◽  
Positive Results

Toxigenic cyanobacterial blooms in the water bodies represent a major ecological problem around the world. Some species produces a diverse range of toxins that have hepatotoxic, neurotoxic, cytotoxic and dermatoxic activity and hence have deleterious effect on humans, animals and fishes leading to death as well. Cultural eutrophication of water bodies leads to increased incidence of these harmful cyanobacterial blooms worldwide. North-East India being a biodiversity hotspot harbor many species of cyanobacteria. Few reports suggested presence of few toxigenic cyanobacteria in the water bodies of Assam, but no systematic studies have been undertaken to evaluate their toxicity. This work is being conducted to gather information on major toxigenic cyanobacteria, with special emphasis to microcystin (a cyclic heptapeptides with high acute and chronic toxicities to humans and animals) producing strains. Water samples have been collected from few water bodies of North-East and enriched in specific media. The toxin Microcystin was detected using specific ELISA kit and positive results have been obtained. Further, 16s rDNA sequencing was employed for molecular identification of the strains.

scholarly journals Metagenome-Assembled Genome Sequences from Different Wastewater Treatment Stages in Germany

2021 ◽  
Vol 10 (27) ◽  
Author(s):  
Dominik Schneider ◽  
Daniela Zühlke ◽  
Anja Poehlein ◽  
Katharina Riedel ◽  
Rolf Daniel
Keyword(s):  
Wastewater Treatment ◽  
Water Bodies ◽  
Genome Sequences ◽  
Hospital Effluent ◽  
Adjacent Water ◽  
German Cities ◽  
Wastewater Treatment Systems

Metagenome-assembled genome sequences (MAGs) were generated from two wastewater treatment systems in two German cities (Göttingen and Greifswald), based on metagenomes derived from hospital effluent, different wastewater treatment stages, and adjacent water bodies. The MAGs mainly originated from bacterial members of Proteobacteria , Bacteroidota , Firmicutes , “ Candidatus Patescibacteria,” Actinobacteriota , Chloroflexota , Desulfobacterota , and Verrucomicrobiota .

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