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Reproduction of Tilapia nilotica and T. zillii in a Nile canal and its interaction with the environment 
Feeding ecology of Oreochromis niloticus (Linnaeus) & Tilapia zillii in a Nile Canal 
Effect of selectivity of trammel nets upon growth and mortality of two Tilapia species 
Feeding ecology of Barbus bynni (Forskal) from Bahr Shebeen Nilotic Canal. 
A study of age and growth of Labeo niloticus (Pisces, Cyprinidae) in Bahr Shebeen Canal. 
Reproductive cycle of male Labeo niloticus from Bahr Shebeen Canal 
Ecological and histological studies on the female reproductive cycle of Barbus Bynni (Forskal, Teleostei, Cyprinidae) in Bahr Shebeen Nilotic Canal 
Fishes of Bahr Shebeen Canal 
Deleterious effects of cyanide compounds used by some fishermen on the economic fishes of Bahr Shebeen Canal, Egyptian Delta 
Morphometric effects of environmental stressors on the gills of wild freshwater teleost Oreochromis niloticus with particular reference to the physical properties of gill mucus as a possible measure of water contamination 
The illegal fish farms in the Egyptian Delta: External lesions frequency, liver histopathology and heavy metals concentrations in the muscle tissue 
Ecological studies on the catfish, Chrysichthys rueppelli (Siluroidei, Bagridae) in a Nile tributary with notes on the factors influencing the ratio of ovarian atresia 
Biology of the freshwater fish, Pollimyrus isidori (Valenciennes, 1846) (Teleostei, Mormyridae) in the River Nile Delta 
Electron microscopic study on the effect of lead acetate on the liver of cichlid fish Oreochromis niloticus (Linnaeus) 
Studies on the oogenesis of the Nile mormyrid fish, Pollimyrus isidori (Valenciennes, 1846).  
Experimental studies on the effect of toxicity of lead acetate on the growth and gonado-somatic index of Oreochromis niloticus (Linnaeus, 1757 
Levels of organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) in a common fish from illegal fish farms in Almenofiya Province 
Food interspecific interactions among some catfish species in a Nile canal 
Illegal fishing using electroshockers in different freshwater areas in Almenofiya province and its effect on fish populations 
The three major threats of Rosetta Branch of River Nile and their impacts on community composition, health and behavior of fishes 
The impact of infection with monogenean parasites on some biological aspects of Clarias gariepinus in Lake Manzala 
Contamination of irrigation and drainage canals and ponds in the Nile delta by heavy metals and its association with human health risks 
Ecological impacts of using contaminated food in the bottom traps and barriers of fishes 
Recovery of spermatogenesis in Clarias gariepinus exposed to mercury 
Storage of illegally cultured fishes in the Nile streams - a possible gateway for contamination of aquatic environment and wild fishes 
Morphometry and DNA fingerprinting by RAPD-PCR of fish species in Bahr Shebeen Nilotic Canal 
Molecular apoptosis, histological alterations and mortality induced in Oreochromis niloticus by copper sulphate used in fishing 
Risk assessment of utilization of treated wastewater for fish culture in Sadat City, Al-Menufiya Province, Egypt. 
Impact of human activities on Aluminum contamination in the drainage canals in the Nile Delta, Epypt 
A comparison of certain ecological aspects at surface and ground water treatment works in El-Menofeyia province, Egypt 
Environmental and physiological impacts of heavy metals on Nile tilapia (Oreochromis niloticus) 
Impact of human activities on aluminum contamination in the drainage canals in the Nile Delta, Egypt 
Contamination and Ecological Hazard Assessment of Heavy Metals in Freshwater Sediments and Oreochromis niloticus (Linnaeus, 1758) Fish Muscles in a Nile River Canal in Egypt 
Contamination and Ecological Hazard Assessment of Heavy Metals in Freshwater Sediments and Oreochromis niloticus (Linnaeus, 1758) Fish Muscles in a Nile River Canal in Egypt 
Evaluation of organochlorine and organophosphorus pesticides residues in the sediment and muscles of Nile tilapia Oreochromis niloticus (Linnaeus, 1758) fish from a River Nile Canal, Egypt