“Ecological risk assessments and eco-toxicity analyses using chemical, biological, physiological responses, DNA damages and gene-level biomarkers in Zebrafish (Danio rerio) in an urban stream”

Moon, Won-Ki; Atique, Usman; An, Kwang-Guk

doi:10.1016/j.chemosphere.2019.124754

Cited by 31 publications

(20 citation statements)

References 68 publications

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“…The findings showed the nutrient loadings from watersheds caused by extreme rainfall events that increased the algal CHL-a growth [21,[54][55][56]. The increasing TSS levels, BOD, TP, and CHL-a during the flood years declined, indicating intensive rainfall mediated dilution [20,46,57,58].…”

Section: Role Of Monsoon and Water Chemistry Variabilitymentioning

confidence: 98%

Seasonal and Long-Term Connections between Trophic Status, Sestonic Chlorophyll, Nutrients, Organic Matter, and Monsoon Rainfall in a Multipurpose Reservoir

Jargal

Atique

Mamun

et al. 2021

Water

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Due to rapid eutrophication, sustainable water quality management and supply are essential in drinking water sources and aquatic biota in large reservoirs. We evaluated the potentially crucial factors influencing the algal chlorophyll (CHL-a), nutrients, and the links between the rainfall and other vital elements in a large multipurpose reservoir (Yongdam Reservoir) during 2013–2019. We developed the empirical models on algal CHL-a, total phosphorus (TP), total nitrogen (TN), and TN:TP’s ambient ratios considering the maneuvering influence of Asian monsoons. The intensive rainfall during the monsoon months strongly impacted the nutrient regime and other vital factors. The seasonal patterns of algal CHL-a varied in response to the nutrient contents (TN, TP), suspended solids, and ambient N:P ratios along the longitudinal gradient. The conditional plot analysis, empirical modeling, and observations supported an overall P-limitation scenario, as was evident from the magnitude of N:P ratios (R2 = 0.36, F = 24.9, p < 0.001). Furthermore, the reservoir’s trophic status alluded to the larger particles and blue-green algae during the monsoon and postmonsoon months. The correlation analysis, Mann–Kendall trend test, and principal component analysis illustrated compelling links between CHL-a, TP, and rainfall regime. The outcomes suggested the reservoir was primarily controlled by phosphorus limitation, with an increasing CHL-a tendency along with nitrogen dilution. However, a slight decline in phosphorus was also detected. The Yongdam Reservoir is under the threat of recurrent eutrophication events that could jeopardize this vital drinking water facility due to increasing agricultural and anthropic activities.

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Section: Role Of Monsoon and Water Chemistry Variabilitymentioning

confidence: 98%

Seasonal and Long-Term Connections between Trophic Status, Sestonic Chlorophyll, Nutrients, Organic Matter, and Monsoon Rainfall in a Multipurpose Reservoir

Jargal

Atique

Mamun

et al. 2021

Water

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“…In addition to this novel approach, change in physiological responses such as acetylcholinesterase (AChE) activity [15][16] and 7-ethoxyresorufin-O-deethylase (EROD) activity [17] estimation could be used as an excellent barometer (biomarker) in detecting the cause-effect problems at the cellular or sub-cellular levels. Therefore, due to the above-mentioned reasons, such approaches can be considered as integral parts of an early warning (alarm) system, which can provide significantly reliable clues regarding the imminent threats and existing issues in aquatic ecosystem health [18][19][20].…”

Section: Introductionmentioning

confidence: 99%

Ecological Risk Assessment of Urban Streams Using Fish Biomarkers of DNA Damage and Physiological Responses

Bae¹,

Atique²,

Yoon³

et al. 2020

Pol. J. Environ. Stud.

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Ecological risk assessment was carried out in two urban streams, viz. Gap Stream (GS) and Miho Stream (MS), in the Geum River Watershed during July 2013-October 2014. The techniques used in this study included multi-level fish biomarkers of DNA damage based on single-cell gel electrophoresis (SCGE) coupled with the study of physiological responses based on 7-ethoxyresorufin-O-deethylase (EROD) and acetylcholinesterase (AChE) activities in fish species. Biomarker values of tail DNA (tDNA), tail length (T L), and tail extent moment (TEM) in impacted zone (I z) were 2.0-3.6-fold greater than in controls (C z). Nucleus image analysis showed that the nucleus had circular particle forms in the C z as compared with a longitudinal oval form with broken particles from the nucleus in the I z. Physiological response analysis of EROD and AchE activities indicated that their levels were higher in the I z than in the C z. Such DNA damages and greater physiological responses in the I z were attributed to chemical contaminants discharged from the wastewater disposal plants and industrial complex. This combination of DNA damage and physiological responses approach can be used as a key tool for early-warning detection of chemical contaminants and concomitant risks to the ecological health of urban streams.

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“…Of these elements, Cr, Zn, Ni, and Pb are among the anthropogenic heavy metals most dangerous to the environment ( Ali et al., 2019 ). In an urban stream in South Korea, Moon et al. (2020) detected Zn, Pb, Cu, and Ni in sediment samples associated with significant DNA damage in the studied fish.…”

Section: Resultsmentioning

confidence: 86%

“…Of these elements, Cr, Zn, Ni, and Pb are among the anthropogenic heavy metals most dangerous to the environment (Ali et al, 2019). In an urban stream in South Korea, Moon et al (2020) detected Zn, Pb, Cu, and Ni in sediment samples associated with significant DNA damage in the studied fish. Khan et al (2018), analyzing heavy metals in the River Kabul, found that Zn, Cr, Ni, Mn, Pb, and Cu were the elements with the highest concentrations.…”

Section: Chemical Analysis Of Water and Sedimentmentioning

confidence: 91%

Genotoxic effect of heavy metals on Astyanax lacustris in an urban stream

Silva

Benvindo‐Souza

Cotrim

et al. 2020

Heliyon

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Uncontrolled urbanization growth contributes to the pollution of aquatic environments. Heavy metals released by domestic and industrial effluents can negatively affect aquatic organisms. This study aimed to evaluate the effect of environmental pollutants, such as metals, on fish DNA damage, in stretches of an urban stream. Specimens of the Neotropical fish, Astyanax lacustris , were exposed in situ for 96 h along the Antas stream, a Brazilian aquatic system deteriorated by anthropogenic factors. Water and sediment samples were collected simultaneously for physicochemical and heavy metal analyses. The comet assay was performed as a biomarker of genotoxicity. Fish located downstream had a higher frequency of DNA damage than in the reference site. We found concentrations of Cr and Ni above acceptable levels in sediment samples. Generally, Ba, Mn, Mg, Zn, Cr, and Ni were the elements most associated with genotoxic damage. Water and sediment of the Antas stream showed genotoxic potential in A. lacustris according to the urbanization gradient, demonstrating the importance to prevent the release of environmental pollutants, especially heavy metals in urban areas.

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“Ecological risk assessments and eco-toxicity analyses using chemical, biological, physiological responses, DNA damages and gene-level biomarkers in Zebrafish (Danio rerio) in an urban stream”

Cited by 31 publications

References 68 publications

Seasonal and Long-Term Connections between Trophic Status, Sestonic Chlorophyll, Nutrients, Organic Matter, and Monsoon Rainfall in a Multipurpose Reservoir

Seasonal and Long-Term Connections between Trophic Status, Sestonic Chlorophyll, Nutrients, Organic Matter, and Monsoon Rainfall in a Multipurpose Reservoir

Ecological Risk Assessment of Urban Streams Using Fish Biomarkers of DNA Damage and Physiological Responses

Genotoxic effect of heavy metals on Astyanax lacustris in an urban stream

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