Harmful algal blooms: A climate change co-stressor in marine and freshwater ecosystems

Harmful Algae, Journal Year: 2019, Volume and Issue: 91, P. 101590 - 101590

Published: May 21, 2019

Marine and freshwater ecosystems are warming, acidifying, deoxygenating as a consequence of climate change. In parallel, the impacts harmful algal blooms (HABs) on these intensifying. Many eutrophic habitats that host recurring HABs already experience thermal extremes, low dissolved oxygen, pH, making locations potential sentinel sites for conditions will become more common in larger-scale systems change accelerates. While studies effects or individual stressors aquatic organisms have been relatively common, assessing their combined rare. Those doing so reported strong species- strain-specific interactions between HAB species co-stressors yielding outcomes could not predicted based investigations factors individually. This review provides an ecological physiological framework considering co-stressor considers consequences occurrence coastal ecosystems. also highlights critical gaps our understanding must be addressed order to develop management plans adequately protect fisheries, aquaculture, ecosystems, human health. Ultimately, incorporating into experiments monitoring programs where multiple considered provide ecologically relevant perspective structure function marine future, climate-altered systems.

Language: Английский

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Freshwater neurotoxins and concerns for human, animal, and ecosystem health: A review of anatoxin-a and saxitoxin

The Science of The Total Environment, Journal Year: 2020, Volume and Issue: 736, P. 139515 - 139515

Published: May 21, 2020

Language: Английский

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Harmful Algal Bloom Toxins in Aerosol Generated from Inland Lake Water

Environmental Science & Technology, Journal Year: 2020, Volume and Issue: 54(8), P. 4769 - 4780

Published: March 18, 2020

Harmful algal blooms (HABs) caused by cyanobacteria in freshwater environments produce toxins (e.g., microcystin) that are harmful to human and animal health. HAB frequency intensity increasing with greater nutrient runoff a warming climate. Lake spray aerosol (LSA) released from lakes has been identified on lakeshores after transport inland, including HABs, but little is known about the potential for be incorporated into LSA. In this study, samples were collected two Michigan: Mona during severe microcystin concentrations (>200 μg/L) well above Environmental Protection Agency (EPA) recommended “do not drink” level (1.6 Muskegon without (<1 μg/L microcystin). Microcystin freshwater, as particles generated laboratory water liquid chromatography–tandem mass spectrometry (LC–MS/MS) at atmospheric up 50 ± 20 ng/m3. Enrichment of hydrophobic congeners microcystin-LR) was observed relative bulk while enrichment hydrophilic microcystin-RR) lower. As HABs increase climate, understanding quantifying emissions atmosphere crucial evaluating health consequences HABs.

Language: Английский

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Mitigating antibiotic pollution using cyanobacteria: Removal efficiency, pathways and metabolism

Water Research, Journal Year: 2020, Volume and Issue: 190, P. 116735 - 116735

Published: Dec. 8, 2020

Language: Английский

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Occurrence, spatial distribution, and seasonal variation of emerging trace organic pollutants in source water for Shanghai, China

The Science of The Total Environment, Journal Year: 2018, Volume and Issue: 639, P. 1 - 7

Published: May 25, 2018

Language: Английский

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Perspectives on Harmful Algal Blooms (HABs) and the Cyberbiosecurity of Freshwater Systems

Frontiers in Bioengineering and Biotechnology, Journal Year: 2019, Volume and Issue: 7

Published: June 4, 2019

Harmful Algal Blooms (HABs) have been observed in all 50 states the U.S., ranging from large freshwater lakes, such as Great Lakes, to smaller inland rivers, and reservoirs, well marine coastal areas estuaries. In 2014, a HAB on Lake Erie containing microcystin (a liver toxin) contaminated municipal water supply Toledo, Ohio, providing non-potable 400,000 people. Studying HABs is complicated different cyanobacteria produce range of toxins that impact human health, microcystins, saxitoxin, anatoxin-a, cylindrospermopsin. may be increasing prevalence with rising temperatures higher nutrient runoff. Consequently, new tools technology are needed rapidly detect, characterize, respond threaten our security. A framework understand cyber threats existing technologies monitor forecast quality. To properly assess, mitigate security infrastructure, it necessary envision perspective cyber-physical system (CPS). doing so, we can evaluate risks research needs for attacks HAB-monitoring networks including data injection attacks, automated hijacking node forgery learning algorithms. Herein, provide perspectives both posed by coupled context HABs.

Language: Английский

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Spatio-Temporal Variations and Driving Forces of Harmful Algal Blooms in Chaohu Lake: A Multi-Source Remote Sensing Approach

Remote Sensing, Journal Year: 2021, Volume and Issue: 13(3), P. 427 - 427

Published: Jan. 26, 2021

Harmful algal blooms (hereafter HABs) pose significant threats to aquatic health and environmental safety. Although satellite remote sensing can monitor HABs at a large-scale, it is always challenge achieve both high spatial temporal resolution simultaneously with single earth observation system (EOS) sensor, which much needed for environment monitoring of inland lakes. This study proposes multi-source sensing-based approach HAB in Chaohu Lake, China, integrates Terra/Aqua MODIS, Landsat 8 OLI, Sentinel-2A/B MSI attain observations. According the absorption characteristics fluorescence peaks on reflectance, normalized difference vegetation index (NDVI) algorithm floating algae (FAI) NDVI combined 8, chlorophyll reflection peak intensity (ρchl) are used extract HAB. The accuracies (NDVI), (FAI), 96.1%, 95.6%, 93.8% RMSE values 4.52, 2.43, 2.58 km2, respectively. combination ρchl effectively avoid misidentification water mixed pixels. Results revealed that Lake breaks out from May November; June, July, August; more frequently occurs western region. Analysis HAB’s potential driving forces, including meteorological factors temperature, rainfall, sunshine hours, wind, indicated higher temperatures light rain favored this Wind primary factor boosting growth, variation surface two days reach up 24.61%. Multi-source provides frequency detailed information HAB, particularly long-short term changes their area.

Language: Английский

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Water flow and temperature drove epiphytic microbial community shift: Insight into nutrient removal in constructed wetlands from microbial assemblage and co-occurrence patterns

Bioresource Technology, Journal Year: 2021, Volume and Issue: 332, P. 125134 - 125134

Published: April 7, 2021

Language: Английский

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A Review of Common Cyanotoxins and Their Effects on Fish

Toxics, Journal Year: 2023, Volume and Issue: 11(2), P. 118 - 118

Published: Jan. 25, 2023

Global warming and human-induced eutrophication drive the occurrence of various cyanotoxins in aquatic environments. These metabolites reveal diversified mechanisms action, encompassing cyto-, neuro-, hepato-, nephro-, neurotoxicity, pose a threat to biota human health. In present paper, we review data on most studied cyanotoxins, microcystins, nodularins, cylindrospermopsin, anatoxins, saxitoxins, environment, as well their potential bioaccumulation toxicity fish. Microcystins are among all known although other toxic cyanobacterial also commonly identified environments can high Except for primary signs, adversely affect antioxidant system anti-/pro-oxidant balance. Cyanotoxins negatively impact mitochondrial endoplasmic reticulum by increasing intracellular reactive oxygen species. Furthermore, fish exposed microcystins cylindrospermopsin exhibit immunomodulatory, inflammatory, endocrine responses. Even though exert complex pressure fish, numerous aspects yet be subject in-depth investigation. Metabolites than should more thoroughly understand long-term effects provide robust background monitoring management actions.

Language: Английский

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Cyanobacterial Harmful Algal Bloom Toxin Microcystin and Increased Vibrio Occurrence as Climate-Change-Induced Biological Co-Stressors: Exposure and Disease Outcomes via Their Interaction with Gut–Liver–Brain Axis

Toxins, Journal Year: 2023, Volume and Issue: 15(4), P. 289 - 289

Published: April 17, 2023

The effects of global warming are not limited to rising temperatures and have set in motion a complex chain events contributing climate change. A consequence the resultant change is rise cyanobacterial harmful algal blooms (cyano-HABs) across world, which pose threat public health, aquatic biodiversity, livelihood communities that depend on these water systems, such as farmers fishers. An increase cyano-HABs their intensity associated with an leakage cyanotoxins. Microcystins (MCs) hepatotoxins produced by some species, organ toxicology has been extensively studied. Recent mouse studies suggest MCs can induce gut resistome changes. Opportunistic pathogens Vibrios abundantly found same habitat phytoplankton, cyanobacteria. Further, complicate human disorders heat stress, cardiovascular diseases, type II diabetes, non-alcoholic fatty liver disease. Firstly, this review describes how mediates freshwater, causing increased levels MCs. In later sections, we aim untangle ways impact various health concerns, either solely or combination other factors resulting from conclusion, helps researchers understand multiple challenges brought forth changing relationships between microcystin, Vibrios, environmental effect

Language: Английский

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