Influence of land cover indices and surface temperature on the metals bioaccumulation by three Macrophytes in Lake Burullus, Egypt

El-Alfy, Muhammad A.; Serag, Mamdouh S.; Basiony, Afifi I.; Fathi, Mohamed; Darwish, Dina H.

doi:10.1007/s11852-023-00934-2

Cited by 5 publications

(1 citation statement)

References 67 publications

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“…Elevated metal concentrations in summer pose a significant threat to aquatic ecosystems and potentially even human health through bioaccumulation. So there is a need for seasonal monitoring and targeted remediation efforts focused on the summer months when metal pollution is most severe in Burulls Lake as mentioned in [23,24]. Furthermore, understanding the seasonality of metal concentrations can inform better management practices for agricultural effluents and industrial discharges, potentially mitigating their impact on water quality [25].…”

Section: Discussionmentioning

confidence: 99%

Effect of Seasonal Changes in Heavy Metals on the Histomorphology of the Liver and Gills of Nile Tilapia (Oreochromis niloticus L.) in Burullus Lake, Egypt

Ezzat,

Al-Hawary,

Elshafey

et al. 2024

Egyptian Journal of Veterinary Sciences

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HIS study aimed to assess the impact of seasonal changes on heavy metal concentrations in water and their effects on Nile Tilapia (Oreochromis niloticus) liver and gill histomorphology in Burullus Lake, Egypt in 2021. Six designated points were selected for water and fish (length ±5cm) sampling in both summer and winter. The results indicated that Iron (f.e) had the highest overall levels across all seasons and sites, while Zinc (Zn), Lead (Pb), Copper (Cu), and Cadmium (Cd) showed variations. Notably, Pb, Cu, and Cd exhibited the widest ranges in concentration. Bioaccumulation of heavy metals in O. niloticus muscles revealed that Zinc concentrations were significantly highest in summer and winter at Site 3 (p < 0.05), while Iron levels were significantly highest in winter and lowest in summer (p < 0.05). Cadmium content varied, and lead concentrations remained low level. Histomorphological analysis of Nile tilapia liver and gills showed significant differences between summer and winter months. In summer, the liver exhibited severe hepatocyte degeneration, pancreatic blood vessel congestion, and pancreatic acinar cell degeneration, affecting liver development stages. Winter liver histomorphology was comparatively better than summer but showed some signs of central vein congestion, mononuclear cell infiltration, vacuolar degeneration, hypertrophy, and pancreatic acinar cell degeneration. Gill histomorphology in summer showed mild to severe congestion, hyperplasia, desquamation, edema, fusion, and degenerative changes, while winter gills displayed mild degeneration in secondary lamellae, hyperplasia of the epithelial lining, congested branchial blood vessels, and interstitial edema. Conclusively, these findings highlight the impact of seasonal changes on the health of Nile tilapia, with more severe consequences observed during the summer months.

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Section: Discussionmentioning

confidence: 99%

Effect of Seasonal Changes in Heavy Metals on the Histomorphology of the Liver and Gills of Nile Tilapia (Oreochromis niloticus L.) in Burullus Lake, Egypt

Ezzat,

Al-Hawary,

Elshafey

et al. 2024

Egyptian Journal of Veterinary Sciences

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A comprehensive health risk assessment associated with bioaccumulation of heavy metals and nutrients in selected macrophytes of Loktak Lake, Manipur, India

Laishram,

Singh,

Alam

2023

Environ Sci Pollut Res

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A comprehensive assessment was conducted to evaluate the accumulation of selected heavy metals and nutrients in 10 dominant macrophyte species growing in the Loktak Lake, a Ramsar site, and to assess the potential health risks associated with the consumption of the edible plants. The concentrations of nutrients such as total phosphorus (TP), total nitrogen (TN), potassium (K), calcium (Ca), magnesium (Mg), and heavy metals such as copper (Cu), manganese (Mn), zinc (Zn), and iron (Fe) were measured, and found to be present in the order of plant > sediment > water. The bioaccumulation factors (BAFs) revealed high e ciency of most plants to accumulate heavy metals and nutrients in their tissues from the lake water and sediments, indicating their potential to be used as phytoremediators. Translocation factors (TFs) were also estimated to determine the e ciency of the plants to translocate elements from root to shoot. Colocasia esculenta and Polygonum perfoliatum were found to exhibit the highest BAF and TF values for most of the parameters. Target hazard quotients (THQs) revealed potential health risk associated with one or more heavy metals in the plants, except for Zn whose THQ values were below the level of concern in all the edible plant species. The hazard index (HI) signifying potential non-carcinogenic health risk from the combined effects of all the heavy metals was found to be highest for Polygonum perfoliatum, indicating a potentially higher risk to health if this edible macrophyte is regularly consumed in higher quantities and may pose long-term health effects to the exposed population.

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CA-Markov chain for simulation and prediction of LULC and assessing the status of water pollution in Manzala Lake after recent development

El-Alfy,

Elfanagily,

Zyadah

et al. 2023

J Coast Conserv

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The Egyptian government recently undertook a large-scale national dredging project to improve the properties and productivity of the northern lakes. Manzala Lake has a distinctive ecological system that offers locals a variety of ecological services. This study was occurred using an integrating approach of remote sensing and Markov modeling to determine the land use/cover (LULC) change of Manzala Lake’s components. The physiochemical characteristics of the water were also measured. Six LULC classes namely; water, crops, vegetation, urban areas, bare lands, and, sabkha were detected in and around the lake in three different years (1998, 2010, and 2022). The LULC transition was studied and predicted using the CA-Markov model. The area of surface water, flooded vegetation, sabkha, and urban areas were increased by the year of 2022. The bare lands were declined more comparing with the past periods. The new developments in Manzala Lake made more changes in the LULC of lake ecosystems. Also, it is an indication to exploitation the bare areas around lakes into new urban areas. The obtained results were necessary for the revised management plan. It is essential for managing the lakes’ land resources, and vital to carefully consider the development strategies to determine how these projects will influence on the environment and biodiversity. In addition, to what extent this lake productivity will improve and help in the recovery of Egypt’s national income.

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Influence of land cover indices and surface temperature on the metals bioaccumulation by three Macrophytes in Lake Burullus, Egypt

Cited by 5 publications

References 67 publications

Effect of Seasonal Changes in Heavy Metals on the Histomorphology of the Liver and Gills of Nile Tilapia (Oreochromis niloticus L.) in Burullus Lake, Egypt

Effect of Seasonal Changes in Heavy Metals on the Histomorphology of the Liver and Gills of Nile Tilapia (Oreochromis niloticus L.) in Burullus Lake, Egypt

A comprehensive health risk assessment associated with bioaccumulation of heavy metals and nutrients in selected macrophytes of Loktak Lake, Manipur, India

CA-Markov chain for simulation and prediction of LULC and assessing the status of water pollution in Manzala Lake after recent development

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