A5008353365- Aquatic Ecosystems and Phytoplankton Dynamics
- Marine and coastal ecosystems
- Marine Toxins and Detection Methods
- Aquatic Ecosystems and Biodiversity
- Biocrusts and Microbial Ecology
- Microbial Community Ecology and Physiology
- Constructed Wetlands for Wastewater Treatment
- Water Quality and Pollution Assessment
- Chemical synthesis and alkaloids
- Environmental Toxicology and Ecotoxicology
- Algal biology and biofuel production
- Magnetic and Electromagnetic Effects
- Marine Ecology and Invasive Species
- Crop Yield and Soil Fertility
- Fish Biology and Ecology Studies
- Biofuel production and bioconversion
- Enzyme Production and Characterization
- Diatoms and Algae Research
- Allelopathy and phytotoxic interactions
- Rice Cultivation and Yield Improvement
- Coastal wetland ecosystem dynamics
- Insect-Plant Interactions and Control
- Seaweed-derived Bioactive Compounds
- Marine Sponges and Natural Products
- Biological Control of Invasive Species
Sohag University
2015-2024
Arish University
2023
King Khalid University
2007-2020
Assiut University
2020
King Abdulaziz University
2020
Zagazig University
2017
University of Nyala
2016
Mansoura University
2005-2014
South Valley University
1999-2006
Microcystins (MCYSTs) that accumulated in different organs of the freshwater fish Oreochromis niloticus, collected from a farm Egypt containing heavy blooms Microcystis aeruginosa, were investigated using an enzyme-linked immunosorbent assay (ELISA). The distribution MCYSTs varied significantly. highest MCYST level was recorded guts (821 ng/g fresh weight), followed by livers (531.8 ng/g) and kidneys (400 ng/g). Smaller amounts detected muscles (102 present study suggests farms should be...
Cylindrospermopsis raciborskii, a potentially toxic and highly adaptable freshwater cyanobacterium, was believed to have been misidentified in the Nile at end of 19th century. This study reports presence raciborskii Raphidiopsis mediterranea for first time Egyptian fresh waters since that time. appeared El-Dowyrat fish pond during May 2002, when bottom reached, as result climatic change, sufficiently high temperatures allow germination its akinetes sediments. Both C. R. showed seasonal...
Abstract This study investigated the diversity and toxin production of cyanobacteria forming microbial mats on soil surface mangrove pneumatophores in three different swamps Red Sea off southern coast Saudi Arabia. In total, 34 species belonging to 15 genera five families were recorded. Benthic had higher numbers (25–31) than pneumatophore (10–12). Cyanobacterial biodiversity ( H ) evenness E greater benthic =2.52–2.83 =0.79–0.83) =1.7–1.82 =0.73–0.74). The results showed high similarity...
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Abstract The present study investigates the allelopathic effects of Stratiotes aloides on growth and antioxidative biomarkers epiphytic planktonic toxic cyanobacteria in a batch experiment over 15‐day exposure to different concentrations aqueous acetone extract this macrophyte. results showed that species differential responses activity S. reduced growth, alkaline phosphatase (APA) toxin production cyanobacterium, Anabaena variabilis , with an increase lipid peroxidation, glutathione...