Cyanotoxin Analysis of Air Samples from the Great Salt Lake DOI Creative Commons
James S. Metcalf, Sandra Anne Banack, Paul Alan Cox

et al.

Toxins, Journal Year: 2023, Volume and Issue: 15(11), P. 659 - 659

Published: Nov. 15, 2023

The Great Salt Lake in Utah is the largest saline lake Western hemisphere and one of terminal lakes world. Situated at eastern edge Basin, it a remnant freshwater Bonneville whose water level precipitously lowered about 12,000 years ago due to natural break Red Rock pass north. It contains diverse assemblage cyanobacteria which vary spatially dependent on salinity. In 1984, waters occupied 8500 km2. Nearly four decades later, occupy 2500 km2—a reduction surface area 71%. With predominantly westerly winds, there potential for adjacent metropolitan residents east be exposed airborne cyanobacteria- cyanotoxin-containing dust. During summer fall months 2022, air dried sediment samples were collected assessed presence BMAA has been identified as risk factor ALS. Collection equivalent person breathing 1 h resulted isomers being found some samples, along with their lakebed samples. There was no clear relationship between these toxins suggesting that may originate from diffuse rather than point sources. These findings confirm continued low levels constitute an increasing health hazard 2.5 million inhabitants communities Wasatch Front.

Language: Английский

Water physicochemical factors and oxidative stress physiology in fish, a review DOI Creative Commons
Soumya V. Menon, Avnish Kumar, Sushil Kumar Middha

et al.

Frontiers in Environmental Science, Journal Year: 2023, Volume and Issue: 11

Published: Sept. 15, 2023

Fish are among the best-studied aquatic animals due to their economic and ecological values. meat is most affordable protein source for economically weaker section of people. The environment almost all ecosystems has a specific influential role on or by fishes. Therefore, studying stress biology, especially oxidative stress, vital because it can influence growth, production, reproduction, etc. To review above topic, peer-reviewed electronic databases, including Web Science, science direct, PubMed, Google Scholar, Scopus, AGRICOLA, were searched with keywords associated fish, diseases, abiotic such as effects water dissolved oxygen, temperature, salinity, hardness, alkalinity, pH, pollutants, heavy metals, anthropogenic activities, was reviewed in current article draw conclusion updated relation that exists between fish physiology, disease, stressors. Oxidative redox regulatory levels under parameters anti-stress responses differ various models. Undoubtedly, factors modulate health status greater extent, therefore, these must be considered priority basis improve general immunity fish. statement remains valid both saline freshwater habitats.

Language: Английский

Citations

56
Fate of a toxic Microcystis aeruginosa bloom introduced into a subtropical estuary from a flow-managed canal and management implications DOI Creative Commons
Edward J. Phli̇ps,

Susan Badylak,

Eric C. Milbrandt

et al.

Journal of Environmental Management, Journal Year: 2025, Volume and Issue: 375, P. 124362 - 124362

Published: Feb. 1, 2025

The Caloosahatchee Estuary in southwest Florida, USA, is regularly subject to the introduction of toxic Microcystis aeruginosa blooms, often originating from eutrophic Lake Okeechobee via C-43 Canal. focus this study was determine responses one these introduced blooms progressively elevated salinity levels as bloom water mass moved through estuary. In upper estuary, salinities were freshwater, and surface large colonies M. observed, along with peak microcystin toxin concentrations up 107 μg L-1, all particulate fraction. mid-estuary, increased 2-6, again 259 however, significant extracellular also observed (i.e., 17.8 L-1), suggesting a level osmotic stress on aeruginosa. lower ranged 6 25 very few viable but 0.5 L-1) present throughout column. It noteworthy that average total column + extracellular) remained constant movement during its transit revealing negligible rate degradation ten-day transit. results provide insights into changes distribution gradient, which has implications for management risks ecosystem human health, how may be affected by releases three control structures Discharge rates play major roles Canal-Caloosahatchee ecosystem. potential discharge regulation are discussed perspectives allochthonous autochthonous origin.

Language: Английский

Citations

2
Understanding the Risks of Diffusion of Cyanobacteria Toxins in Rivers, Lakes, and Potable Water DOI Creative Commons

Amin Mahmood Thawabteh,

Hani Naseef,

Donia Karaman

et al.

Toxins, Journal Year: 2023, Volume and Issue: 15(9), P. 582 - 582

Published: Sept. 20, 2023

Blue-green algae, or cyanobacteria, may be prevalent in our rivers and tap water. These minuscule bacteria can grow swiftly form blooms warm, nutrient-rich Toxins produced by cyanobacteria pollute streams harm the liver nervous system humans. This review highlights properties of 25 toxin types 12 different genera. The also covered strategies for reducing controlling issues. include using physical chemical treatments, cutting back on fertilizer input, algal lawn scrubbers, antagonistic microorganisms biocontrol. Micro-, nano- ultrafiltration techniques could used removal internal extracellular cyanotoxins, addition to powdered granular activated carbon, ozonation, sedimentation, ultraviolet radiation, potassium permanganate, free chlorine, pre-treatment oxidation techniques. efficiency treatment removing intracellular cyanotoxins is demonstrated. approaches aim lessen risks cyanobacterial associated toxins. Effective management water systems depends early detection quick action. Cyanobacteria cells their toxins detected microscopy, molecular methods, chromatography, spectroscopy. Understanding causes many ways elimination will help this crucial environmental issue.

Language: Английский

Citations

26
Blue revolution turning green? A global concern of cyanobacteria and cyanotoxins in freshwater aquaculture: A literature review DOI
Damjana Drobac, Nada Tokodi

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 360, P. 121115 - 121115

Published: May 14, 2024

Language: Английский

Citations

7
Impacts of cyanobacterial metabolites on fish: Socioeconomic and environmental considerations DOI
Éryka Costa de Almeida, Larissa Souza Passos, Paloma Nathane Nunes de Freitas

et al.

Reviews in Aquaculture, Journal Year: 2024, Volume and Issue: 16(3), P. 1186 - 1211

Published: Jan. 14, 2024

Abstract The increasing global population has led to rising demand for food, particularly protein. As an excellent source of protein, fish play a crucial role in meeting this demand, making aquaculture highly impactful industry. Floating cages have been developed as method management and production achieve high productivity volume. However, these intensive farming practices can contribute eutrophication, leading changes primary producers promoting the excessive proliferation cyanobacteria. Cyanobacteria blooms pose significant consequences aquatic ecosystems, including potential risks exposed harmful cyanobacterial metabolites. Cyanobacterial metabolites encompass various chemical classes, such terpenoids, carotenoids, alkaloids, cyanopeptides, amino acids, organophosphates, macrolides, lipopolysaccharides. Some compounds' toxicity impact on farms still need be better understood. Cyanotoxins off‐flavour compounds water quality health hazards humans throughout food chain. Therefore, cyanobacteria economic, environmental, public implications. This review examines concerns associated with natural products farming, off‐flavours, known cyanotoxins, other potentially toxic compounds, while exploring their socioeconomic environmental risks.

Language: Английский

Citations

6
Toxicological effects of cyanobacterial metabolites on zebrafish larval development DOI
Fernanda Rios Jacinavicius, Vanessa Geraldes, Kelly Afonsina Fernandes

et al.

Harmful Algae, Journal Year: 2023, Volume and Issue: 125, P. 102430 - 102430

Published: March 25, 2023

Language: Английский

Citations

14
Effects of microcystin-LR on immune function, lipid metabolism and intestinal microbial structure in Eriocheir sinensis DOI Creative Commons
Jinliang Du, Liping Cao, Jiancao Gao

et al.

Aquaculture Reports, Journal Year: 2024, Volume and Issue: 35, P. 101994 - 101994

Published: Feb. 23, 2024

To investigate the potential toxic mechanism of Microcystin-LR (MC-LR) on juvenile Eriocheir sinensis (E. sinensis), a toxicity test was conducted by injecting MC-LR into 3rd pereiopod. Following injection, we evaluated alterations in immune response biomarkers, antioxidant status, lipid metabolism-related genes expression, and intestinal microbiota composition hepatopancreas tissues E. sinensis. The results showed that after injection MC-LR, serum complement C3 level significantly decreased at 48 hours (P < 0.05), whereas C4 increased considerably from 12 to 96 0.01). phenoloxidase system (PO) an increasing trend 6 0.05 or P levels TNF-α, IL-6 Gene expression analysis FASN gene hepatopancreatic tissue displayed higher both post-exposure 0.01), while ALDH ACAA2 exhibited consistent downward Additionally, mRNA MECR ACSL demonstrated pattern initial downregulation, followed upregulation, subsequent downregulation. status revealed GSH CAT first then decreased, activity SOD increased. Meanwhile, MDA content trend. 16 S rDNA microbial diversity treatment group relative control Compared with group, had abundance Proteobacteria, Fusobacteria, Actinobacteria 0.05) lower Firmicutes At genus level, Acinnetobacter, Flavobacterium, Acidovorax, Paracoccus, Cloacibacterium, Gemmobacter, Aeromonas, Dechloromonas intestine MC-LR-treated but Lachnospiraceae_NK4A136_group study could induced oxidative stress, damage, imbalance

Language: Английский

Citations

5
Cyanotoxins in food: Exposure assessment and health impact DOI
Damjana Drobac, Nada Tokodi

Food Research International, Journal Year: 2024, Volume and Issue: 184, P. 114271 - 114271

Published: March 30, 2024

Language: Английский

Citations

5
Nodding syndrome: A role for environmental biotoxins that dysregulate MECP2 expression? DOI Creative Commons
Peter S. Spencer, Raquel Valdes Angues,

Valerie S. Palmer

et al.

Journal of the Neurological Sciences, Journal Year: 2024, Volume and Issue: 462, P. 123077 - 123077

Published: June 2, 2024

Language: Английский

Citations

5
Cyanobacteria respond to trophic status in shallow aquatic ecosystems DOI Creative Commons
Natalia Kuczyńska‐Kippen, Anna Kozak, Sofia Celewicz-Gołdyn

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 174932 - 174932

Published: July 27, 2024

Small and shallow water bodies are particularly sensitive to adverse conditions connected with anthropogenic eutrophication. As model systems, ponds a good object for ecological research monitoring of global environmental changes. We examined cyanobacteria along other groups algae versus zooplankton abiotic characteristics in 51 aquatic ecosystems exposed pressure (from natural forest highly disturbed field ponds) 3 distinct trophic groups: meso-, eu- hypertrophic. This study aimed define how different levels trophy affect pond-specific assemblages identify species responding particular states. demonstrated that type determined the occurrence certain species. From among 78 identified taxa, shade- turbid mixed adapted were most numerous. Eutrophic had highest diversity abundance zooplankon. Dominating such as Chroococcus minimus, Anagnostidinema amphibium, Phormidium granulatum or Komvophoron minutum preferred mesotrophic, while e.g. Jaaginema subtilissimum, Limnolyngbya circumcreta, Limnothrix vacuolifera Romeria leopolienis eutrophic waters these not grazed by filtrators. Only (Aphanizomenon flos-aquae, Dolichospermum circinale, Planktothrix agardhii) associated hypertrophic ponds. Therefore, we assume taxa have high indicative potential distinguish between Reynolds Functional Groups also exhibit responses changes quality. It was partucularly evident case representatives codon M which attributed Advancing our understanding about preferences is crucial, especially era warming persistent issue eutrophication, when problems harmful cyanobacterial blooms intensifying. The findings significance management implications, highlighting often-overlooked importance pond maintaining overall

Language: Английский

Citations

5