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179 Results Found

  • Article
  • Open Access
4 Citations
2,806 Views
12 Pages

14 March 2023

Several changes have occurred in the river environment of Nakdong river due to the construction of multifunctional weirs as part of the Four Major Rivers Project. This river currently exhibits characteristics that are similar to those of a stagnant w...

  • Article
  • Open Access
3 Citations
3,756 Views
25 Pages

RecepNet: Network with Large Receptive Field for Real-Time Semantic Segmentation and Application for Blue-Green Algae

  • Kaiyuan Yang,
  • Zhonghao Wang,
  • Zheng Yang,
  • Peiyang Zheng,
  • Shanliang Yao,
  • Xiaohui Zhu,
  • Yong Yue,
  • Wei Wang,
  • Jie Zhang and
  • Jieming Ma

24 October 2022

Most high-performance semantic segmentation networks are based on complicated deep convolutional neural networks, leading to severe latency in real-time detection. However, the state-of-the-art semantic segmentation networks with low complexity are s...

  • Article
  • Open Access
1 Citations
4,268 Views
18 Pages

13 October 2023

The introduction of systems for ensuring quality and safe drinking water and risk management is the World Health Organization (WHO) good practice introduced as a legislative requirement for all water supply organizations (Directive EU 2020/2184) on t...

  • Article
  • Open Access
2 Citations
3,190 Views
12 Pages

15 August 2023

Harmful cyanobacteria (blue-green algae) exposures can cause illness or death in humans and animals. We characterized American Society for the Prevention of Cruelty to Animals (ASPCA) Animal Poison Control Center (APCC) harmful blue-green algae (HBGA...

  • Article
  • Open Access
9 Citations
2,828 Views
13 Pages

15 May 2023

Iron-modified biochar adsorbent shows its promise for removing Cr(VI) from water. However, the traditional dry-grinding modification methods to prepare iron-modified biochar (DFeBC) usually result in the aggregation of iron oxide particles, thus impe...

  • Article
  • Open Access
13 Citations
3,568 Views
17 Pages

4 February 2023

In recent years, the consumption of blue-green algae (BGA) dietary supplements is increasing because of their health benefits. However, cyanobacteria can produce cyanotoxins, which present serious health risks. In this work we propose hydrophilic int...

  • Article
  • Open Access
6 Citations
3,940 Views
17 Pages

Climate Change Impacts on Water Temperatures in Urban Lakes: Implications for the Growth of Blue Green Algae in Fairy Lake

  • Munir Bhatti,
  • Amanjot Singh,
  • Edward McBean,
  • Sadharsh Vijayakumar,
  • Alex Fitzgerald,
  • Jan Siwierski and
  • Lorna Murison

16 February 2024

Cyanobacteria, also known as blue-green algae, are photosynthetic bacteria that play a crucial role in aquatic ecosystems and are susceptible to changes in temperature. Hence, as global temperatures rise due to climate change, some Cyanobacterial spe...

  • Article
  • Open Access
5 Citations
3,045 Views
11 Pages

Classification Technique of Algae Using Hyperspectral Images of Algae Culture Media

  • Gwang Soo Kim,
  • Yeonghwa Gwon,
  • Eun Ji Oh,
  • Dongsu Kim,
  • Jae Hyun Kwon and
  • Young Do Kim

6 April 2023

Increases in algal growth have been reported in rivers, reservoirs, and other water resources worldwide, including Korea. Algal overgrowth can result in algal bloom, which has several negative impacts, such as ecosystem degradation and economic losse...

  • Review
  • Open Access
30 Citations
7,692 Views
24 Pages

A Review on a Hidden Gem: Phycoerythrin from Blue-Green Algae

  • Hui Teng Tan,
  • Fatimah Md. Yusoff,
  • Yam Sim Khaw,
  • Nur Amirah Izyan Noor Mazli,
  • Muhammad Farhan Nazarudin,
  • Noor Azmi Shaharuddin,
  • Tomoyo Katayama and
  • Siti Aqlima Ahmad

29 December 2022

Phycoerythrin (PE) is a pink/red-colored pigment found in rhodophytes, cryptophytes, and blue-green algae (cyanobacteria). The interest in PE is emerging from its role in delivering health benefits. Unfortunately, the current cyanobacterial-PE (C-PE)...

  • Article
  • Open Access
8 Citations
1,805 Views
15 Pages

13 November 2023

A multifunctional weir was built on the Nakdong River. As a result, changes in the river environment occurred, such as an increase in river residence time. This causes changes in water quality, including green algae. The occurrence of green algae in...

  • Article
  • Open Access
8 Citations
472 Views
11 Pages

7 February 2012

The dominance of blue-green algae observed in many lakes is related to a high trophic level. Shallow eutrophic lakes are particularly often abundant in blue-green algae. The research on phytoplankton, the results of which are presented in this paper,...

  • Article
  • Open Access
3 Citations
2,558 Views
13 Pages

Blue-Green Algae as Stimulating and Attractive Feeding Substrates for a Mediterranean Commercial Sea Urchin Species, Paracentrotus lividus

  • Paolo Solari,
  • Giorgia Sollai,
  • Viviana Pasquini,
  • Angelica Giglioli,
  • Roberto Crnjar and
  • Piero Addis

5 July 2023

Sea urchins rely on chemical senses to localize suitable food resources, therefore representing model species for chemosensory studies. In the present study, we investigated the chemical sensitivity of the Mediterranean sea urchin Paracentrotus livid...

  • Article
  • Open Access
70 Citations
11,997 Views
14 Pages

Health Risk Assessment for Cyanobacterial Toxins in Seafood

  • Vanora Mulvenna,
  • Katie Dale,
  • Brian Priestly,
  • Utz Mueller,
  • Andrew Humpage,
  • Glen Shaw,
  • Graeme Allinson and
  • Ian Falconer

Cyanobacteria (blue-green algae) are abundant in fresh, brackish and marine waters worldwide. When toxins produced by cyanobacteria are present in the aquatic environment, seafood harvested from these waters may present a health hazard to consumers....

  • Article
  • Open Access
2 Citations
1,133 Views
13 Pages

Prediction of Blue-Green Algae Cells in a City Water Source Based on the LSTM Model

  • Liangzhi Sun,
  • Yangyang Chu,
  • Hui Li,
  • Xiaomeng Han and
  • Shihu Shu

16 January 2025

China’s freshwater resources are relatively small per capita, and the traditional passive control of hydrographic outbreaks can no longer meet modern water management needs. Data-driven models, such as Long Short-Term Memory Networks (LSTMs), h...

  • Article
  • Open Access
9 Citations
8,416 Views
11 Pages

Influence of the Systemic Application of Blue–Green Spirulina platensis Algae on the Cutaneous Carotenoids and Elastic Fibers in Vivo

  • Maxim E. Darvin,
  • Sora Jung,
  • Sabine Schanzer,
  • Heike Richter,
  • Elke Kurth,
  • Gisela Thiede,
  • Martina C. Meinke and
  • Juergen Lademann

1 September 2015

The objective of the study was to investigate the influence of a food supplement rich in antioxidants on the antioxidant status of the skin. For this reason, the blue-green algae Spirulina platensis powder was used for oral application during eight w...

  • Article
  • Open Access
947 Views
13 Pages

Cyanobacteria (also called blue-green algae)-based dietary supplements are commonplace, but cyanobacteria-enhanced foods, such as spirulina crackers, are just appearing on New Zealand supermarket shelves. While much research has been devoted to consu...

  • Article
  • Open Access
1 Citations
2,601 Views
10 Pages

8 April 2021

The frequent occurrence of cyanobacterial blooms, caused by the eutrophication of water bodies, has triggered several ecological issues. Metal-controlled cyanobacteria are resulting in a series of secondary environmental problems and thus limiting en...

  • Article
  • Open Access
116 Citations
14,808 Views
32 Pages

24 September 2013

Cyanobacteria (also called blue-green algae) are ubiquitous in aquatic environments. Some species produce potent toxins that can sicken or kill people, domestic animals, and wildlife. Dogs are particularly vulnerable to cyanotoxin poisoning because o...

  • Review
  • Open Access
7 Citations
5,525 Views
19 Pages

5 December 2024

Climate change is a global phenomenon that significantly affects water quality and quantity, with implications observed across various regions worldwide. In the Murray–Darling Basin (MDB), Australia’s largest and most vital river system,...

  • Review
  • Open Access
40 Citations
9,795 Views
18 Pages

21 June 2018

Previous studies of recreational waters and blue-green algae supplements (BGAS) demonstrated co-occurrence of Aphanizomenon flos-aquae (AFA) and cyanotoxins, presenting exposure risk. The authors conducted a systematic literature review using a GRADE...

  • Article
  • Open Access
1 Citations
3,246 Views
21 Pages

14 September 2023

Climate and anthropogenic change, particularly agricultural runoff, increase blue-green algae/cyanobacteria blooms. This article researches cyanobacteria alert-level identification, management, and risk communication in Lake Hume, Australia. Two meth...

  • Article
  • Open Access
22 Citations
6,472 Views
15 Pages

Exposure to Aerosolized Algal Toxins in South Florida Increases Short- and Long-Term Health Risk in Drosophila Model of Aging

  • Jiaming Hu,
  • Jiaqi Liu,
  • Yi Zhu,
  • Zoraida Diaz-Perez,
  • Michael Sheridan,
  • Haley Royer,
  • Raymond Leibensperger,
  • Daniela Maizel,
  • Larry Brand and
  • R. Grace Zhai
  • + 1 author

11 December 2020

Harmful algal blooms (HABs) are a rising health and environmental concern in the United States, particularly in South Florida. Skin contact and the ingestion of contaminated water or fish and other seafood have been proven to have severe toxicity to...

  • Feature Paper
  • Article
  • Open Access
62 Citations
5,217 Views
13 Pages

Blue-Green Algae (Spirulina platensis) Alleviates the Negative Impact of Heat Stress on Broiler Production Performance and Redox Status

  • Eman S. Moustafa,
  • Walaa F. Alsanie,
  • Ahmed Gaber,
  • Nancy N. Kamel,
  • Abdulaziz A. Alaqil and
  • Ahmed O. Abbas

26 April 2021

The modern broiler industry faces huge challenges to keep high production quality and quantity, especially under environmental heat stress conditions. The negative effect of heat stress on broiler productivity is mediated by oxidative stress inductio...

  • Review
  • Open Access
143 Citations
14,303 Views
22 Pages

20 April 2015

Harmful cyanobacterial blooms have adversely impacted human and animal health for thousands of years. Recently, the health impacts of harmful cyanobacteria blooms are becoming more frequently detected and reported. However, reports of human and anima...

  • Article
  • Open Access
133 Citations
11,270 Views
15 Pages

12 May 2015

Lake Erie, the world’s tenth largest freshwater lake by area, has had recurring blooms of toxic cyanobacteria for the past two decades. These blooms pose potential health risks for recreation, and impact the treatment of drinking water. Understanding...

  • Article
  • Open Access
2 Citations
2,777 Views
9 Pages

Antibiotic Resistance Genes Detection in Several Local Cyanobacteria Isolates

  • Harith K. Buniya,
  • Nuha A. Mohammed and
  • Dhyauldeen Aftan Al-Hayani

23 November 2024

Antibiotic resistance in cyanobacteria represents a global threat to public health. The widespread presence of cyanobacteria in aquatic environments exposes them to antibiotic contamination. Cyanobacteria are also in direct contact with pathogenic ba...

  • Article
  • Open Access
7 Citations
2,956 Views
24 Pages

Cyanobacterial Bloom Phenology in Green Bay Using MERIS Satellite Data and Comparisons with Western Lake Erie and Saginaw Bay

  • Timothy T. Wynne,
  • Richard P. Stumpf,
  • Kaytee L. Pokrzywinski,
  • R. Wayne Litaker,
  • Bart T. De Stasio and
  • Raleigh R. Hood

26 August 2022

Cyanobacteria blooms have been reported to be increasing worldwide. In addition to potentially causing major economic and ecological damage, these blooms can threaten human health. Furthermore, these blooms can be exacerbated by a warming climate. On...

  • Article
  • Open Access
10 Citations
7,829 Views
11 Pages

The Geographic Distribution of Liver Cancer in Canada Does Not Associate with Cyanobacterial Toxin Exposure

  • Meaghan A. Labine,
  • Chris Green,
  • Giselle Mak,
  • Lin Xue,
  • Janet Nowatzki,
  • Jane Griffith and
  • Gerald Y. Minuk

Background: The incidence of liver cancer has been increasing in Canada over the past decade, as has cyanobacterial contamination of Canadian freshwater lakes and drinking water sources. Cyanotoxins released by cyanobacteria have been implicated in t...

  • Article
  • Open Access
24 Citations
7,355 Views
16 Pages

Comparison of Protein Phosphatase Inhibition Assay with LC-MS/MS for Diagnosis of Microcystin Toxicosis in Veterinary Cases

  • Caroline E. Moore,
  • Jeanette Juan,
  • Yanping Lin,
  • Cynthia L. Gaskill and
  • Birgit Puschner

9 March 2016

Microcystins are acute hepatotoxins of increasing global concern in drinking and recreational waters and are a major health risk to humans and animals. Produced by cyanobacteria, microcystins inhibit serine/threonine protein phosphatase 1 (PP1). A co...

  • Review
  • Open Access
55 Citations
11,189 Views
28 Pages

6 April 2016

The cyanobacteria are well recognized as producers of a wide array of bioactive metabolites including toxins, and potential drug candidates. However, a limited number of taxa are generally considered with respect to both of these aspects. That said,...

  • Review
  • Open Access
66 Citations
12,543 Views
28 Pages

5 November 2013

Algal blooms are a frequent phenomenon in nearly all kinds of fresh water. Global warming and eutrophication by waste water, air pollution and fertilizers seem to lead to an increased frequency of occurrence. Many cyanobacteria produce hazardous and...

  • Article
  • Open Access
62 Citations
15,088 Views
15 Pages

Characterization of Aerosols Containing Microcystin

  • Yung Sung Cheng,
  • Zhou Yue,
  • C. Mitch Irvin,
  • Barbara Kirkpatrick and
  • Lorraine C. Backer

12 October 2007

Toxic blooms of cyanobacteria are ubiquitous in both freshwater and brackishwater sources throughout the world. One class of cyanobacterial toxins, calledmicrocystins, is cyclic peptides. In addition to ingestion and dermal, inhalation is a likelyrou...

  • Article
  • Open Access
114 Citations
20,246 Views
18 Pages

Recreational Exposure to Low Concentrations of Microcystins During an Algal Bloom in a Small Lake

  • Lorraine C. Backer,
  • Wayne Carmichael,
  • Barbara Kirkpatrick,
  • Christopher Williams,
  • Mitch Irvin,
  • Yue Zhou,
  • Trisha B. Johnson,
  • Kate Nierenberg,
  • Vincent R. Hill and
  • Yung-Sung Cheng

26 June 2008

We measured microcystins in blood from people at risk for swallowing water or inhaling spray while swimming, water skiing, jet skiing, or boating during an algal bloom. We monitored water samples from a small lake as a Microcystis aeruginosa bloom de...

  • Article
  • Open Access
53 Citations
9,477 Views
14 Pages

27 March 2015

Harmful algal blooms (HABs) degrade water quality and produce toxins. The spatial distribution of HAbs may change rapidly due to variations wind, water currents, and population dynamics. Risk assessments, based on traditional sampling methods, are h...

  • Case Report
  • Open Access
30 Citations
13,217 Views
13 Pages

Treatment of Cyanobacterial (Microcystin) Toxicosis Using Oral Cholestyramine: Case Report of a Dog from Montana

  • Kelly A. Rankin,
  • Karen A. Alroy,
  • Raphael M. Kudela,
  • Stori C. Oates,
  • Michael J. Murray and
  • Melissa A. Miller

29 May 2013

A two and a half year old spayed female Miniature Australian Shepherd presented to a Montana veterinary clinic with acute onset of anorexia, vomiting and depression. Two days prior, the dog was exposed to an algal bloom in a community lake. Within h,...

  • Article
  • Open Access
9 Citations
7,038 Views
23 Pages

24 July 2019

The science on the anthropogenic airborne aerosols impacting the World Heritage marble monument, the Taj Mahal, at Agra, has been studied in the light of modern physico-chemical approaches. The study is an effort to understand unrecognized airborne s...

  • Article
  • Open Access
53 Citations
5,391 Views
16 Pages

Potential Applications of Native Cyanobacterium Isolate (Arthrospira platensis NIOF17/003) for Biodiesel Production and Utilization of Its Byproduct in Marine Rotifer (Brachionus plicatilis) Production

  • Mohamed A. Zaki,
  • Mohamed Ashour,
  • Ahmed M. M. Heneash,
  • Mohamed M. Mabrouk,
  • Ahmed E. Alprol,
  • Hanan M. Khairy,
  • Abdelaziz M. Nour,
  • Abdallah Tageldein Mansour,
  • Hesham A. Hassanien and
  • Mostafa E. Elshobary

6 February 2021

To achieve strong, successful and commercial aqua-biotechnological microalgae applications, screening, isolation, molecular identification, and physiological characterizations are needed. In the current study, a native cyanobacteria strain Arthrospir...

  • Article
  • Open Access
15 Citations
6,690 Views
16 Pages

AphaMax®, an Aphanizomenon Flos-Aquae Aqueous Extract, Exerts Intestinal Protective Effects in Experimental Colitis in Rats

  • Maria Grazia Zizzo,
  • Gaetano Caldara,
  • Annalisa Bellanca,
  • Domenico Nuzzo,
  • Marta Di Carlo,
  • Stefano Scoglio and
  • Rosa Serio

26 November 2020

Background: Aphanizomenon flos-aquae (AFA) is a unicellular cyanobacterium considered to be a “superfood” for its complete nutritional profile and beneficial properties. We investigated possible beneficial effects of an AFA extract, comme...

  • Article
  • Open Access
11 Citations
2,883 Views
24 Pages

3 May 2023

There is an urgent demand for biostimulant amendments that can sustainably alleviate osmotic stress. However, limited information is available about the integrated application of vermicompost and a cyanobacteria extract on cotton plants. In 2020 and...

  • Article
  • Open Access
23 Citations
8,188 Views
29 Pages

Hot Is Rich—An Enormous Diversity of Simple Trichal Cyanobacteria from Yellowstone Hot Springs

  • Jan Kaštovský,
  • Jeffrey R. Johansen,
  • Radka Hauerová and
  • Mildred U. Akagha

28 August 2023

In 2019, cyanobacterial samples were collected from thermal sites in Yellowstone National Park. In this paper, we discuss the considerable richness of representatives of simple filamentous cyanobacteria. Using a polyphasic approach, one new genus, Co...

  • Article
  • Open Access
3 Citations
2,632 Views
14 Pages

Viromic and Metagenomic Analyses of Commercial Spirulina Fermentations Reveal Remarkable Microbial Diversity

  • Brian McDonnell,
  • Elvina Parlindungan,
  • Erika Vasiliauskaite,
  • Francesca Bottacini,
  • Keith Coughlan,
  • Lakshmi Priyadarshini Krishnaswami,
  • Tom Sassen,
  • Gabriele Andrea Lugli,
  • Marco Ventura and
  • Douwe van Sinderen
  • + 1 author

27 June 2024

Commercially produced cyanobacteria preparations sold under the name spirulina are widely consumed, due to their traditional use as a nutrient-rich foodstuff and subsequent marketing as a superfood. Despite their popularity, the microbial composition...

  • Article
  • Open Access
18 Citations
6,205 Views
15 Pages

BMAA, Methylmercury, and Mechanisms of Neurodegeneration in Dolphins: A Natural Model of Toxin Exposure

  • David A. Davis,
  • Susanna P. Garamszegi,
  • Sandra Anne Banack,
  • Patrick D. Dooley,
  • Thomas M. Coyne,
  • Dylan W. McLean,
  • David S. Rotstein,
  • Deborah C. Mash and
  • Paul Alan Cox

1 October 2021

Dolphins are well-regarded sentinels for toxin exposure and can bioaccumulate a cyanotoxin called β-N-methylamino-l-alanine (BMAA) that has been linked to human neurodegenerative disease. The same dolphins also possessed hallmarks of Alzheimer’s dise...

  • Article
  • Open Access
7 Citations
4,060 Views
14 Pages

Community Composition Specificities of Cyanobacteria in Paddy Soil under Different Ecological Conditions

  • Jian Song,
  • Xu He,
  • Shuwen Wang,
  • Xue Yang,
  • Lei Wu,
  • Siyuan Li,
  • Dongchao Wang,
  • Meiying Yang and
  • Zhihai Wu

6 December 2022

In order to explore the distribution of cyanobacteria in paddy soil under different ecological conditions, the composition, diversity, and environmental drivers of soil cyanobacteria communities in rice fields from six regions of Jilin Province (Chin...

  • Article
  • Open Access
2,167 Views
17 Pages

Application of Targeted and Suspect Screening Workflows for Cyclic Peptide Cyanotoxin Profiling in Spirulina- and Klamath-Based Food Supplements

  • Laura Carbonell-Rozas,
  • M. Mar Aparicio-Muriana,
  • Roberto Romero-González,
  • Antonia Garrido Frenich,
  • Ana M. García-Campaña and
  • Monsalud del Olmo-Iruela

26 August 2025

Spirulina (Arthrospira spp.) and klamath (Aphanizomenon flos-aquae) are widely consumed cyanobacteria-based food supplements valued for their nutritional and health-promoting properties. However, these products are susceptible to contamination by cya...

  • Article
  • Open Access
53 Citations
6,699 Views
13 Pages

Toxin Release of Cyanobacterium Microcystis aeruginosa after Exposure to Typical Tetracycline Antibiotic Contaminants

  • Jing Ye,
  • Yuping Du,
  • Lumei Wang,
  • Jingru Qian,
  • Jiejing Chen,
  • Qingwen Wu and
  • Xiaojun Hu

21 February 2017

The global usage of veterinary antibiotics is significant. Antibiotics can be released into aquatic environments and elicit toxic effects on non-target organisms. In this study, the growth characteristics and toxin release of the cyanobacterium Micro...

  • Feature Paper
  • Article
  • Open Access
20 Citations
6,633 Views
11 Pages

14 April 2017

A bioactivity guided study of a cf. Caldora penicillata species, collected during a 2013 expedition to the Pacific island of Saipan, Northern Mariana Islands (a commonwealth of the USA), led to the isolation of a new thiazoline-containing alkaloid, l...

  • Article
  • Open Access
75 Citations
11,540 Views
14 Pages

Human Illnesses and Animal Deaths Associated with Freshwater Harmful Algal Blooms—Kansas

  • Ingrid Trevino-Garrison,
  • Jamie DeMent,
  • Farah S. Ahmed,
  • Patricia Haines-Lieber,
  • Thomas Langer,
  • Henri Ménager,
  • Janet Neff,
  • Deon Van der Merwe and
  • Edward Carney

30 January 2015

Freshwater harmful algal bloom (FHAB) toxins can cause morbidity and mortality in both humans and animals, and the incidence of FHABs in the United States and Kansas has increased. In 2010, the Kansas Department of Health and Environment (KDHE) devel...

  • Article
  • Open Access
49 Citations
12,382 Views
30 Pages

29 May 2017

We analyzed 27 established and new simple and therefore perhaps portable satellite phycocyanin pigment reflectance algorithms for estimating cyanobacterial values in a temperate 8.9 km2 reservoir in southwest Ohio using coincident hyperspectral aircr...

  • Article
  • Open Access
14 Citations
4,091 Views
17 Pages

19 December 2022

The use of microalgae in wastewater treatment (WWT) is seen as a promising and sustainable alternative to conventional WWTs, and the obtained biomass is gaining importance as a bio-product. The present study aimed to investigate the effectiveness of...

  • Article
  • Open Access
6 Citations
2,486 Views
14 Pages

Experimental Study on the Impact of Pulsed Flow Velocity on the Scouring of Benthic Algae from a Mountainous River

  • Ping Cao,
  • Fengran Xu,
  • Shilin Gao,
  • Baiyin Baoligao,
  • Xiangdong Li,
  • Xiangpeng Mu,
  • Ana Mendes and
  • Xu Shang

6 October 2022

The decrease in periodic scouring of pulsed flows in regulated rivers can result in algal communities dominated by filamentous algae, not available as food sources for fish and macroinvertebrates. To study the pulsed flow velocity required to scour b...

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