Impact of Drainage Water on Macrobenthos Structure of Lake Qaroun, El-Fayoum, Egypt

Khalil, Magdy T.; Fishar, Mohamed R.; Shakir, Safwat H.; A., Amer,; Nassif, Marian G.

doi:10.21608/ejabf.2017.3289

Cited by 13 publications

(8 citation statements)

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“…In this work, all recorded aqueous metals in the studied sites were exceeded the permissible limits reported by the Ministry of Water Resources and Irrigation (Egypt) for non-freshwater bodies (MWRI 2013) with higher values at site 1. Site 1 is affected by El-Batts drain (the largest drain at lake Qaroun) that receives agricultural drainage water from the eastern side of El-Fayoum depression; moreover, this site is affected by many anthropogenic activities (Khalil et al 2017). The Egyptian company for salts and minerals (EMISAL) represents the major industrial activity on the southeast coast of lake Qaroun.…”

Section: Discussionmentioning

confidence: 99%

Assessment of metal pollution impacts on Tilapia zillii and Mugil cephalus inhabiting Qaroun and Wadi El-Rayan lakes, Egypt, using integrated biomarkers

Abdel-Khalek

Zayed

El-Sayad

et al. 2020

Environ Sci Pollut Res

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Qaroun and Wadi El-Rayan lakes are exposed to a huge amount of discharges from different sources and numerous anthropogenic activities. Therefore, the present work aimed to evaluate the impacts of metal pollution on two wild fish species; Tilapia zillii and Mugil cephalus collected from lake Qaroun (eastern and western parts) and Wadi El-Rayan lakes (upper and lower lakes). Accumulation of metals (Cu, Zn, Cd, and Pb) in water, sediment, and five vital tissues as well as metal pollution index (MPI), contamination factor (CF), and pollution load index (PLI) were integrated as metal pollution biomarkers. Generally, these integrated endpoints had the same trend and indicated that the eastern part of lake Qaroun was the most polluted site followed by the lower lake of Wadi El-Rayan. To assess the environmental genotoxicity, the percentage DNA damage in different tissues of both fish species was estimated using the comet assay technique. The percentage of DNA damages showed tissue-, species-and site-specification. Hazard index (HI) has been used as an evaluation index for human health associated with fish consumption at the studied sites. This index showed that all metals were in the safe limits at normal consumption levels while adverse health effects are expected to occur at the subsistence consumption level. The safe HI for each metal at normal consumption level does not neglect that the combined cumulative risk impact of all metals is a sign of warning and the health of fish consumers nearby contaminated sites is threatened.

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Section: Discussionmentioning

confidence: 99%

Assessment of metal pollution impacts on Tilapia zillii and Mugil cephalus inhabiting Qaroun and Wadi El-Rayan lakes, Egypt, using integrated biomarkers

Abdel-Khalek

Zayed

El-Sayad

et al. 2020

Environ Sci Pollut Res

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“…Changes in water temperature may ulter or inhibit normal growth and development of certain organisms including fishes (Salem, 2006). Lake water showed moderately an alkaline character with pH values ranging between 8.15 -8.95 which is in the neighborhood of that obtained by Khalil et al (2017) and in the range of permissible limits (WHO, 1993). Lake water salinity were 35.05, 46.35‰ for the minimum and maximum value, respectively.…”

Section: Measurementsmentioning

confidence: 59%

“…Dissolved oxygen (DO) was found to be fluctuated and ranged between 7.65 and 13.68 mg/L which is in the range of permissible limits (WHO, 1993). However, the range of Do obtained by Shaaban et al (2016) and Khalil et al (2017) were less than that listed in Table (1) Adequate dissolved O2 is vital for the survival of aquatic organisms and is therefore an important variable in the assessment and monitoring of water quality. The relatively low concentration of DO recorded could be attributed to the fall in water temperature, phytoplankton blooming and exhaustion of DO for oxidation of huge amounts of organic matter discharged into the lake (Tayel et al, 2013).…”

Section: Physicochemical Parameters Of Lake Watermentioning

confidence: 86%

“…The results for BOD (which is the amount of DO required to degrade certain amount of organic matter present in water) were ranged from 3.85 -11.1 mg/L. which is in the neighborhood of that obtained by Khalil et al (2017). The high concentration of BOD may be 130 due to the high load of wastes discharged into the lake (Saad et al, 2011).…”

Section: Physicochemical Parameters Of Lake Watermentioning

confidence: 96%

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Seasonal and regional variations of five heavy metals in water, sediments and fishes inhabiting Lake Qarun, Egypt

Elwasify

Ghanem

El-Bamby

et al. 2019

Al-Azhar Journal of Agricultural Research

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The study was conducted during the period from October 2015 to September 2016 to investigate the accumulation of five heavy metals in three fish species (Tilapia zillii, Solea solea and Mugil cephalus) inhabiting lake Qarun, Egypt. Water, sediments and fish samples were collected from six sites cover eastern, middle and western sectors of the lake during the four studied seasons. The results indicated that, summer time showed the highest pH, salinity, biological oxygen demand and nitrates concentration, while autumn and spring times showed the highest nitrites concentration depending on the site. The abundance of metals in lake water, sediments and fish followed the order: Fe > Zn ≈ Mn > Cu > Cd. In all fish species Fe and Zn exceeded the permissible limits. Regardless fish species, the highest concentrations of metals were recorded in fish liver, while the lowest in fish muscles. Mugil species seemed to be more contaminated with metals than the other species. It is recommended to coordinate different efforts to rescue Lake Qarun from heavy metal pollution.

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“…Qaroun Lake is one of Egypt's most significant inland aquatic habitats, serving as a natural discharge region for El-Fayoum province [13]. Furthermore, Qaroun Lake is a significant place for fishing, tourism, salt manufacturing, and migrating birds.…”

Section: Introductionmentioning

confidence: 99%

Using Optimized Two and Three-Band Spectral Indices and Multivariate Models to Assess Some Water Quality Indicators of Qaroun Lake in Egypt

et al. 2021

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Standard methods are limited for monitoring and managing water quality indicators (WQIs) in real-time and on a large scale. Consequently, there is an urgent need to use reliable, practical, swift, and cost-effective monitoring tools that can be easily deployed and assist decision makers in assessing key indicators relevant to surface water quality in a comprehensive manner. Surface water samples were collected and evaluated for water quality at 16 distinct sites across the Qaroun Lake in 2018 and 2019. Different WQIs, including total dissolved solids (TDS), transparency, total suspended solids (TSS), chlorophyll-a (Chl-a), and total phosphorus (TP), were tested for aquatic utilization. An integrated approach comprising WQIs, geospatial techniques, hyperspectral reflectance indices (SRIs) (commonly used SRIs, two-band and three-band SRIs (Spectral index calculated from water spectral reflectance of two or three wavelengths)), and partial least square regression (PLSR) models were used to assess the water quality of Qaroun Lake. According to the findings, the water quality attributes are polluted to varying degrees. The majority of commonly used SRIs presented moderately relationship with four WQIs (transparency, TSS, Chl-a, and TP) (R2 = 0.45 to 0.64), while the majority of newly two-band SRIs (NSRIs-2b) indicated moderate to strong relationships with WQIs (R2 = 0.51 to 0.74), and the majority of newly three band SRIs (NSRIs-3b) presented strong relationships with WQIs (R2 = 0.67 to 0.81). Broadly, the highest coefficients of determination were noticed with the NSRIs-3b followed by the NSRIs-2b and then the commonly used SRIs. For example, the NSRIs-3b (NDSI648,712,696) had stronger relationships with transparency, TSS, and Chl-a with R2 = 0.77, 0.66, and 0.81, respectively, than other SRIs. In addition, the NSRIs-3b (NDSI620,610,622) showed the highest R2 of 0.73 with TSS. The NSRIs-3b coupling with PLSR predicted the WQIs with satisfactory accuracy in the calibration (reach up R2 = 0.85) and validation (reach up R2 = 0.81) datasets. The overall findings of this research study showed that deriving an optimized NSRIs-3b from spectrum region and combining it with PLSR model could be a practical tool for managing water quality of the Qaroun Lake by accurately, timely, and non-destructively monitoring the WQIs.

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Impact of Drainage Water on Macrobenthos Structure of Lake Qaroun, El-Fayoum, Egypt

Cited by 13 publications

References 0 publications

Assessment of metal pollution impacts on Tilapia zillii and Mugil cephalus inhabiting Qaroun and Wadi El-Rayan lakes, Egypt, using integrated biomarkers

Assessment of metal pollution impacts on Tilapia zillii and Mugil cephalus inhabiting Qaroun and Wadi El-Rayan lakes, Egypt, using integrated biomarkers

Seasonal and regional variations of five heavy metals in water, sediments and fishes inhabiting Lake Qarun, Egypt

Using Optimized Two and Three-Band Spectral Indices and Multivariate Models to Assess Some Water Quality Indicators of Qaroun Lake in Egypt

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