Prof. Dr. Imam Abdel-Ghany Ahmed Mekkawy

Prof. Dr. Imam Abdel-Ghany Ahmed Mekkawy

Professor
Taif University, Saudi Arabia


Highest Degree
Ph.D. in Fish Taxonomy from Assiut University, Egypt

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Biography

Dr. Imam Abdel-Ghany Ahmed Mekkawy is currently working as Professor of Vertebrate and Embryology at Faculty of Science, Taif University, Saudi Arabia, and Professor of Fish Biology at Department of Zoology, Faculty of Science, Assiut University, Assiut, Egypt. He has completed his Ph.D. in Fish Taxonomy from same University. Previously he was appointed as Visitor Professor and Lecturer at Department of Biological Sciences, Faculty of Science, Sanaa, Yemen Republic. His area of research interest focuses on Fish Taxonomy, Numerical Taxonomy, Fish Biology, Osteology, Fish Embryology, Fish Stock Assessment, Population dynamics, Ecology: Lake Impoundment, Pollution, Biometry, Electrophoresis, Impacts of UV-radiation and Biodiversity. He is also serving as reviewer and editor for number of journals. He has published 94 research articles in journals 3 books and 2 book chapters. He has supervised 25 PhD and MSc thesis. He is member of Egyptian-German Society of Zoology, Cairo University, Society of Environmental Protection, Ministry of Social Affairs, Assiut, Egypt, Secretary-general of the Administrative Council of Syndicate of Scientific Professions, Assiut, Egypt, Awarded the Faculty-of-Science Prize of Academic research in 1992/1993, 1998/1999 and 2005/2006.

Area of Interest:

Animal and Veterinary Sciences
100%
Fish Taxonomy
62%
Fish Toxicology
90%
Fish Biology
75%
Fisheries
55%

Selected Publications

  1. Sayed, A.E.D.H., H.S. Abdel-Tawab, S.S. Abdel Hakeem and I.A. Mekkawy, 2013. The protective role of quince leaf extract against the adverse impacts of ultraviolet: A radiation on some tissues of Clarias gariepinus (Burchell, 1822). J. Photochem. Photobiol. B: Biol., 119: 9-14.
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  2. Mekkawy, I.A.A., U.M. Mahmoud, E.T. Wassif and M. Naguib, 2013. Effects of cadmium on some histopathological and histochemical characteristics of the kidney and gills tissues of oreochromis niloticus (linnaeus,1758) dietary supplemented with tomato paste and vitamin E. J. Fish. Aquat. Sci., .

  3. Mekkawy, I.A.A., U.M. Mahmoud and R.H. Mohammed, 2013. Protective effects of tomato paste and vitamin E on atrazine-induced hematological and biochemical characteristics of clarias gariepinus (burchell,1822). Global Adv. Res. J. Environ. Sci. Toxicol., 2: 11-21.

  4. Alkaladi, A., A.S.A. Harabawy and I.A.A. Mekkawy, 2013. Scale characteristics of two fish species, acanthopagrus bifasciatus (forsska, 1775) and rhabdosargus sarba (forsska, 1775) from the Red Sea at Jeddah, Saudi Arabia. Pak. J. Biol. Sci., .

  5. Sayed, A.E.H., I.A.A. Mekkawy and U.M. Mahmoud, 2012. Histopathological Alterations in some Body Organs of Adult Clarias gariepinus (Burchell, 1822) Exposed to 4-Nonylphenol. In: Zoology, Garcia, M.D. (Ed.). InTech Publisher, Rijeka, Croatia, ISBN: 978-953-51-0360-8, pp: 163-164.
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  6. Sayed, A.E.D.H., U.M. Mahmoud and I.A. Mekkawy, 2012. Toxic effects of 4-nonylphenol on the embryonic development of African catfish Clarias gariepinus (Burchell, 1822). Int. J. Biol. Biol. Sci., 1: 34-46.
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  7. Sayed, A.E.D.H., U.M. Mahmoud and I.A. Mekkawy, 2012. Reproductive biomarkers to identify endocrine disruption in Clarias gariepinus exposed to 4-nonylphenol. Ecotoxicol. Environ. Saf., 78: 310-319.
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  8. Sayed, A.E.D.H., S.A. Hakeem, U.M. Mahmoud and I.A. Mekkawy, 2012. 4-Nonylphenol induced morphological and histopathological malformation in Bufo regularis tadpoles. Global Adv. Res. J. Environ. Sci. Toxicol., 1: 143-151.
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  9. Mekkawy, I.A.A., U.M. Mahmoud, E.T. Wassif and M. Naguib, 2012. Protective roles of tomato paste and vitamin e on cadmium-induced histological and histochemical changes of liver of oreochromis niloticus (linnaeus, 1758). J. Fish. Aquat. Sci., 7: 240-265.
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  10. Mekkawy, I.A.A. and A.A. Hassan, 2012. Reproductive characteristics of the Elephant-snout fish Mormyrus kannume Forsskal, 1775 from the Nile, Egypt. J. Biol. Sci., 12: 15-24.
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  11. Mekkawy, I.A., U.M. Mahmoud and E.M. Hassanien, 2012. Trend analysis of some commercial fishes catch in the river Nile in upper Egypt. Assiut Univ. J. Zool., 41: 67-84.

  12. Mahmoud, U.M., I.A.A. Mekkawy, A. Ibrahim and A. Th, 2012. Biochemical response of the African catfish, clarias gariepinus (burchell, 1822) to sublethal concentrations of mercury chloride with supplementation of selenium and vitamin E. Toxicol. Environ. Health. Sci., 4: 218-234.

  13. Khidr, B.M., I.A.A. Mekkawy, A.S.A. Harabawy and A.M.I. Ohaida, 2012. Effect of lead nitrate on the liver of the cichlid fish (oreochromis niloticus): a light microscope study. Pak. J. Biol. Sci., 15: 854-862.

  14. Harabawy, A.S.A., I.A.A. Mekkawy and A. Alkaladi, 2012. Identification of three fish species of genus Plectorhynchus from the Red Sea by their scale characteristics. Life Sci. J., 9: 4472-4485.
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  15. Sayed, A.H., U.M. Mahmoud and I.A. Mekkawy, 2011. Toxic effects of 4-nonylphenol on the embryonic development of African catfish Clarias gariepinus (Burchell, 1822). Proceedings of the 3rd Scientific Conference for Young Researchers Basic Science and Technology, April 19-20, 2011, Faculty of Science, Assiut University, Egypt -.

  16. Sayed, A.E.D.H., I.A.A. Mekkawy and U.M. Mahmoud, 2011. Effects of 4-nonylphenol on metabolic enzymes, some ions and biochemical blood parameters of the African catfish Clarias gariepinus (Burchell, 1822). Afr. J. Biochem. Res., 5: 287-297.
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  17. Sayed, A.E.D.H., I.A. Mekkawy and U.M. Mahmoud, 2011. Histopathological alterations in some body organs of adult Clarias gariepinus (Burchell, 1822) exposed to 4-nonylpheno. Proceedings of the 4th Annual Conference of Egyptian Association for the Development of Fisheries Resources and Human Health, January 3, 2011, Ain Shams University, Cairo, Egypt -.

  18. Sayed, A.E.D.H., I.A. Mekkawy and U.M. Mahmoud, 2011. Effects of 4-Nonylphenol on African Catfish Clarias gariepinus: Haematological, Biochemical, Histological and Molecular Characteristics of Clarias gariepinus Exposed to 4-Nonylphenol. LAP LAMBERT Academic Publishing, Germany, ISBN-13: 978-3845444673, Pages: 240.
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  19. Sayed, A.E.D.H., I.A. Mekkawy and U.M. Mahmoud, 2011. Effect of Ultraviolet Radiation on Catfish Embryos: Morphological, Histological and Biochemical Characteristics of Clarias gariepinus Embryos Exposed to UVR-A. LAP LAMBERT Academic Publishing, Germany, ISBN-13: 978-3844388947, Pages: 120.
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  20. Mekkawy, I.A.A., U.M. Mahmoud, E.T. Wassif and M. Naguib, 2011. Effects of cadmium on some haematological and biochemical characteristics of Oreochromis niloticus (Linnaeus, 1758) dietary supplemented with tomato paste and vitamin E. Fish Physiol. Biochem., 37: 71-84.
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  21. Mekkawy, I.A.A., U.M. Mahmoud and S. Mohsen, 2011. Analyses of catch-effort data of some fish species of Lake Manzala, Egypt. Proceedings of the 3rd Scientific Conference for Young Researchers Basic Science and Technology, April 19-20, 2011, Faculty of Science, Assiut University, Egypt -.

  22. Mekkawy, I.A.A., E.T. Wassif and A.A.M. Basmidi, 2011. Scale characteristics of three Lutjanus species (Family: Lutjanidae) from the Red Sea, Egypt. J. Fish. Aquat. Sci., 6: 506-522.
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  23. Mekkawy, I.A.A. and A.S. Mohammad, 2011. Morphometrics and meristics of the three epinepheline species: Cephalopholis argus (Bloch and Schneider, 1801), Cephalopholis miniata (Forsskal, 1775) and Variola louti (Forsskal, 1775) from the red sea, Egypt. J. Biol. Sci., 11: 10-21.
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  24. Mekkawy, I.A.A. and A.A. Hassan, 2011. Some reproductive parameters of Synodontis Schall (Bloch and Schneider, 1801) from the River Nile, Egypt. J. Fish. Aquat. Sci., 6: 456-471.
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  25. Mekkawy, I.A., U.M. Mahmoud and S.S. Abdel-Hakeem, 2011. Effects of Atrazine on developmental stages of African catfish Clarias gariepinus (Burchell,1822). Proceedings of the 3rd Scientific Conference for Young Researchers Basic Science and Technology, April 19-20, 2011, Faculty of Science, Assiut University, Egypt -.

  26. Mekkawy, I.A., U.M. Mahmoud and A.E.D.H. Sayed, 2011. Effects of 4-nonylphenol on blood cells of the African catfish Clarias gariepinus (Burchell, 1822). Tissue Cell, 43: 223-229.
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  27. Mekkawy, I.A., A.E.D.H. Sayed and U.M. Mahmoud, 2011. Effects of 4-nonylphenol onerythrocytes and blood parameters in the African catfish Clarias gariepinus (Burchell; 1822). Proceedings of the 19th International Conference of Egyptian German Society, May 9, 2011, Faculty of Science, Beni Suef University, Beni Suef, Egypt -.

  28. Mahmoud, U.M., I.A. Mekkawy and A.H. Sayed, 2011. Biochemical changes of African catfish Clarias gariepinus exposed to 4-nonylphenol. Proceedings of the 3rd Scientific Conference for Young Researchers Basic Science and Technology, April 19-20, 2011, Faculty of Science, Assiut University, Egypt -.

  29. Mahmoud, U.M., I.A. Mekkawy and A. Ibrahim, 2011. Hematological studies of selenium and vitamin E on mercury detoxification of African catfish Clarias gariepinus (Burchell, 1822). Proceedings of the 3rd Scientific Conference for Young Researchers Basic Science and Technology, April 19-20, 2011, Faculty of Science, Assiut University, Egypt -.

  30. Ahmed S.A. Harabawy, Imam A.A. Mekkawy 2011. Skin Characteristics and Organization of the Air-breathing Fish, Alticus kirkii (Günther, 1868) along Different Body Regions J. Biol. Sci., 11: 466-474.
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  31. Osman, A., E. Ali, M. Hashem, M. Mostafa and I. Mekkawy, 2010. Genotoxicity of two pathogenic strains of zoosporic fungi (Achlya klebsiana and Aphanomyces laevis) on erythrocytes of Nile tilapia Oreochromis niloticus niloticus. Ecotoxicol. Environ. Safety, 73: 24-31.
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  32. Mekkawy, I.A.A., U.M. Mahmoud, A.G. Osman and A.E.D.H. Sayed, 2010. Effects of ultraviolet A on the activity of two metabolic enzymes, DNA damage and lipid peroxidation during early developmental stages of the African catfish, Clarias gariepinus (Burchell, 1822). Fish physiol. Biochem., 36: 605-626.
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  33. Mahmoud, U.M., I.A.A. Mekkawy and A.E.D.H. Sayed, 2009. Ultraviolet radiation-A (366 Nm) induced morphological and histological malformations during embryogenesis of Clarias gariepinus (Burchell, 1822). J. Photochem. Photobiol. B: Biol., 95: 117-128.
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  34. Osman, A.G.M., S. Wuertz, I.A. Mekkawy, J. Verreth and F. Kirschbaum, 2008. Early development of the African Catfish Clarias gariepinus (Burchell, 1822), focusing on the ontogeny of selected organs. J. Applied Ichthiol., 24: 187-195.
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  35. Osman, A.G.M., I.A. Mekkawy, J. Verreth, S. Wuertz, W. Kloas and F. Kirschbaum, 2008. Monitoring of DNA breakage in embryonic stages of the African catfish Clarias gariepinus (Burchell, 1822) after exposure to lead nitrate using alkaline comet assay. Environ. Toxicol., 23: 679-687.
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  36. Mekkawy, I.A.A., U.M Mahmoud and A.T.A. Ibrahim, 2008. Heavy metal distribution in some organs of Oreochromis niloticus (Linnaeus, 1758) collected from three localities at Assiut, Egypt and the corresponding tissue damage. J. Egypt. Ger. Soc. Zool., 55: 97-127.
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  37. Khidr, B.M., I.A.A. Mekkawy, A.S. Harabawy and A.M. Ohaida, 2008. Effect of separate and combined lead and selenium on the liver of the Cichlid fish Oreochromis niloticus: Ultrastructural study. Egypt. J. Zool., 50: 89-119.

  38. Harabawy, A.S.A., I.A.A. Mekkawy, U.M. Mahmoud, G.H. Abdel-Rahman and B.M. Khidr, 2008. Surface architecture of the oropharyngeal cavity and the digestive tract of Bagrus docmak (Forsskal, 1775) and Clarias gariepinus (Burchell, 1822) (Teleostei) from the Nile River: A scanning electron microscope study. J. Egypt. Ger. Soc. Zool., 56: 171-198.

  39. Sayed, A.H., A.T. Ibrahim, I.A. Mekkawy and U.M. Mahmoud, 2007. Effects of ultraviolet radiation on some biochemical and histological parameters of African catfish, Clarias gariepinus (Burchell, 1822). Egypt. J. Aquat. Biol. Fish., 11: 167-176.

  40. Sayed, A.E.D.H., A.T. Ibrahim, I.A.A. Mekkawy and U.M. Mahmoud, 2007. Acute effects of ultraviolet-a radiation on African catfish Clarias gariepinus (Burchell, 1822). J. Photochem. Photobiol. B: Biol., 89: 170-174.
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  41. Osman, A.G.M., S. Wuertz, I.A. Mekkawy, H.J. Exner and F. Kirschbaum, 2007. Lead induced malformations in embryos of the African catfish Clarias gariepinus (Burchell, 1822). Environ. Toxicol., 22: 375-389.
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  42. Osman, A.G.M., I.A. Mekkawy, J. Verreth and F. Kirschbaum, 2007. Effects of lead nitrate on the activity of metabolic enzymes during early developmental stages of the African catfish, Clarias gariepinus (Burchell, 1822). Fish Physiol. Biochem., 33: 1-13.
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  43. Mekkawy, I.A.A., U.M. Mahmoud and A.T. Ibrahim, 2007. Heavy metal distribution and the corresponding damage in some organs of Bagrus bajad (Forsskal, 1775) collected from three localities at Assiut, Egypt. J. Egypt. Ger. Soc. Zool., 54: 119-137.

  44. Mekkawy, I.A.A., U.M. Mahmoud and A.S. Mohammad, 2007. Biological characteristics and fisheries of Cephalopholis argus (Bloch and Schneider, 1801), Cephalopholis miniata (Forsskal, 1775) and Variola louti (Forsskal, 1775) (Family: Serranidae) from the Red Sea, Egypt. J. Egypt. Ger. Soc. Zool., 53: 65-107.

  45. Mekkawy, I.A.A., A.S.A. Harabawy, E.A. Adam and A.I. Mohamed, 2007. Biology and population dynamics of Lates niloticus (Linnaeus, 1758) (Family Centropomidae) from Lake Nasser, Egypt. J. Egypt. Soc. Biotechnol. Environ. Sci., 10: 191-234.

  46. Mekkawy, I.A.A., A.S.A. Harabawy, E.A. Adam and A.I. Mohamed, 2007. Biological studies and population dynamics of Alestes dentex (Linnaeus, 1758) (Family Alestiidae) from Lake Nasser, Egypt. J. Egypt. Soc. Biotechnol. Environ. Soc., 9: 165-202.

  47. Harabawy, A.S.A., I.A.A. Mekkawy and U.M. Mahmoud, 2007. A comparative study on scale characteristics and their functional morphology of four Goatfishes (Family Mullidae) from the Red Sea. J. Egypt. Soc. Biotech. Environ. Soc., 9: 123-163.

  48. Mekkawy, I.A.A., U.M. Mahmoud, B.M. Khidr and A.S. Mohammad, 2006. A scale characteristics of three species of grouper fishes (Family: Serranidae, Subfamily: Epinephelinae) from the Red Sea, Egypt. J. Union Arab Biol., 26: 65-99.

  49. Mekkawy, I.A.A. and A.G.M. Osman, 2006. Ultrstructural studies of the morphological variations of the egg surface and envelopes of the african catfish Clarias gariepinus before and after fertilization with a discussion of fertilization mechanism. Proceedings of the 29th Annual Larval Fish Conference, July 11-14, 2005, Barcelona, Spain -.

  50. Mekkawy, I.A.A., U.M. Mahmoud and A.S.A. Harabawy, 2005. Biology, fisheries and population dynamics of three species of genus Lethrinus (Family Lethrinidae) from the Red Sea, Egypt. J. Egypt. Ger. Soc. Zool., 46: 203-246.

  51. Mekkawy, I.A.A. and G.H. Abdel-Rahman, 2005. Comparative study of scales of five species of parrotfishes (Family Scaridae) from the Red Sea, Hurghada, Egypt with emphasis on their functional morphology. Egypt. J. Zool., 44: 421-443.

  52. Mahmoud, U.M., I.A.A. Mekkawy and A.S.A. Harabawy, 2005. Scale characteristics of seven species of genus Lethrinus (Family Lethrinidae) from the Red Sea, Egypt. J. Zool., 44: 545-580.

  53. Mekkawy, I.A.A., U.M. Mahmoud and A.S.A. Harabawy, 2003. Identification of four Labeo fish species from the Nile, Egypt by their scale characteristics and scanning electron microscopy. J. Union Arab Biol., 19: 81-104.

  54. Mekkawy, I.A.A. and F.E. Lashein, 2003. The effect of lead and cadmium on LDH and G-6-PDH isozyme patterns exhibited during the early embryonic development of the teleost fish, Ctenopharyngodon idellus with emphasis on the corresponding morphological variations. Proceeding of the 26th Annual Larval Fish Conference, July 22-26, 2002, Bergen, Norway -.

  55. Mekkawy, I.A.A., S.A. Saber, S.M.A. Shehata and A.G.M. Osman, 2002. Morphometrics and meristics of four fish species of genus Epinephelus (Family Seranidae) from the Red Sea, Egypt. Bull. Fac. Sci. Assiut. Univ., 31: 21-41.
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  56. Khidr, B.M., E.T. Wassif, S.Y. Hussein and I.A.A. Mekkawy, 2001. Studies on the effect of the herbicide atrazine on the liver and kidney of the freshwater catfish Chrysichthys auratus. J. Egypt Ger. Soc. Zool., 34: 283-300.

  57. Hussein, S.Y. and I.A.A. Mekkawy, 2001. The effects of lead-exposure and lead-clay interaction on the growth performance, biochemical and physiological characteristics and histopathology of Tilapia zillii. Bull. Fac. Sci., Assiut Univ., 30: 65-97.

  58. Wassif, E.T., B.M. Khidr, S.Y. Hussein, I.A.A. Mekkawy and H.I. Hassan, 2000. Effects of herbicide atrazine on the structure of some organs of the Nile fish Oreochromis niloticus. Proceedings of the the 4th Conference of the Egyptian Society for the Development of Fisheries Resources and Human Health, October 17-19, 2000, Ain Shams University, Faculty of Science, Cairo. -.

  59. Mekkawy, I.A.A., S.A. Saber, S.M.A. Shehata and A.G.M. Osman, 2000. Protein taxonomy of four species of genus Epinephelus (Family Serranidae) from the Red Sea, Egypt: II- Izoenzyme systems. Bull. Fac. Sci. Assiut. Univ., 29: 23-36.

  60. Mekkawy, I.A.A., S.A. Saber, S.M.A. Shehata and A.G.M. Osman, 2000. Protein taxonomy of four species of genus Epinephelus (Family Serranidae) from the Red Sea, Egypt: I-Muscle and eye-lens nucleus proteins. Bull. Fac. Sci. Assiut. Univ., 29: 37-53.

  61. Hussein, S.Y., I.A.A. Mekkawy, Z.Z. Moktar and M. Mubarak, 2000. Protective effect of Nigella sativa seed against aflatoxicosis in Oreochromis niloticus. Proceedings of the 5th Conference on Mycotoxins and Dioxins and the Environment, September 25-27, 2000, Bydgoszcz University of Kazimierz Wielki, Poland, pp: 109-130.

  62. Mekkawy, I.A.A., S.M.A. Shehata, S.A. Saber and A.G.M. Osman, 1999. Scale characteristics of five species of genus Epinephelus (Family: Serranidae) from the Red Sea, Egypt. J. Egypt. Ger. Soc. Zool., 30: 71-102.

  63. Mekkawy, I.A.A., 1998. Fish stock assessment of Lake Nasser, Egypt with emphasis on the fisheries of Oreochromis niloticus and Sarotherodon galilaeus. J. Egypt Ger. Soc. Zool., 25: 283-404.

  64. Mekkawy, I.A.A., 1997. Meristic and Morphometric patterns of three Egyptian Bagrus species. J. Egypt. Ger. Soc. Zool., 22: 93-121.

  65. Mekkawy, I.A.A., 1997. Intra- and inter-specific differences in the growth of two sympatric Bagrus species in relation with river/lake characteristics. J. Egypt Ger. Soc. Zool., 22: 69-92.

  66. Mekkawy, I.A.A., S.Y. Hussein, M. Abd El-Nasser and S.M. Ahmed, 1996. Comparative studies on the effects of herbicide atrazine on some blood constituents and protein electrophoretic patterns of Oreochromis niloticus and Chrysichthyes auratus at Assiut, Egypt. J. Egypt Ger. Soc. Zool., 19: 283-319.

  67. Mekkawy, I.A.A., 1995. Intra- and inter-specific variations in the meristic characteristics of some tilapiine species of Egypt. Assiut Vet. Med. J., 33: 11-45.

  68. Mekkawy, I.A.A., 1995. Description of Tilapia ismailiaensis sp.n. (Cichlidae) from Egypt. Bull. Fac. Sci., Assiut Univ., 24: 29-43.

  69. Mekkawy, I.A.A., 1995. Description of Oreochromis ismailiaensis sp.n., and its hybrid with Oreochromis niloticus (Linnaeus, 1758) (Perciformes; Cichlidae) from Egypt. Bull. Fac. Sci., Assiut Univ., 24: 1-27.
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  70. Mekkawy, I.A.A. and S.H. Mohamad, 1995. Study of the effect of Lake Nasser impoundment on growth and age composition of sarotherodon galilaeus. Assiut Vet. Med. J., 33: 46-69.

  71. Mekkawy, I.A.A., S.H. Mohamad, F.F. Abass and S.A. Okasha, 1994. Some biological aspects of Oreochromis niloticus (Linnaeus,1758) from Lake Nasser,Egypt and the effect of lake impoundment. Bull. Fac. Sci., Assiut Univ., 23: 101-142.

  72. Yoakim, E.G., U.M. Mahmoud, I.A.A. Mekkawy and A.S.A. Harabawy, 1993. Some biological characteristics of Bagrus bayad (Forskal, 1778) from the Nile at Assiut, Egypt. Bull. Fac. Sci., Assiut Univ., 22: 1-24.

  73. Yoakim, E.G., U.M. Mahmoud, I.A.A. Mekkawy and A.S.A. Harabawy, 1993. Electrophoretic study on blood serum, eye lens and muscle proteins of Bagrus bayad (Forskal, 1775) and Bagrus docmac (Forskal, 1775) (Teleostei, Bagridae) from the Nile at Assiut, Egypt. Bull. Fac. Sci., Assiut Univ., 22: 63-85.

  74. Yoakim, E.G., U.M. Mahmoud, I.A.A. Mekkawy and A.S.A. Harabawy, 1993. Electrophoretic study of intra- and inter-specific isozyme variations of Bagrus bayad (Forskal, 1775) and Bagrus docmac (Forskal , 1775) (Teleostei , Bagridae) from the Nile at Assiut, Egypt. Bull. Fac. Sci., Assiut Univ., 22: 43-62.

  75. Yoakim, E.G., I.A.A. Mekkawy, U.M. Mahmoud and A.S.A. Harabawy, 1993. A study of certain biological aspects of Bagrus docmac (Forskal, 1775) from the Nile at Assiut, Egypt. Bull. Fac. Sci., Assiut Univ., 22: 25-43.

  76. Mekkawy, I.A.A. and U.M. Mahmoud, 1992. Morphometric and meristic studies of four Labeo species from the Nile at Egypt. J. Egypt Ger. Soc. Zool., 7: 485-513.

  77. Mekkawy, I.A.A. and U.M. Mahmoud, 1992. Intra- and inter-specific morphometric and osteometric variations in Synodontis populations of Egypt. J. Egypt Ger. Soc. Zool., 7: 91-110.

  78. Mekkawy, I.A.A. and U.M. Mahmoud, 1992. Electrophoretic study of blood serum, eye lens and muscle proteins of two Nile cyprinoid fishes: Labeo horie Heckel 1846 and Labeo forskalii Ruppell 1832 from Assiut area, Egypt. Bull. Fac. Sci. Assiut Univ., 21: 69-91.

  79. Mekkawy, I.A.A., 1991. Some morphometric and meristic char-acters of the Nile fish, Chrysichthys auratus (Geoffroy Saint-Hilaire, 1809) from the Nile at Egypt. Bull. Fac. Sci. Assiut Univ., 20: 253-278.

  80. Mekkawy, I.A.A., 1991. Multivariate analysis of the morphom-etric and meristic characters of the Nile charcoid fish, Alestes nurse (Ruppel,1832) from the Nile at Egypt. Assiut Vet. Med. J., 26: 35-52.

  81. Mekkawy, I.A.A., 1991. Bivariate and multivariate size all-ometry of the Nile fish, Chrysichthys auratus (Geoffroy Saint- Hilaire,1809) from the Nile at Egypt. Assiut Vet. Med.J., 26: 53-66.
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  82. Mekkawy, I.A.A., 1991. A proposed coding method for morphom-etric characters and its possible application of fishes. Bull. Fac. Sci. Assiut Univ., 20: 135-140.

  83. Mahmoud, U.M. and I.A.A. Mekkawy, 1991. Studies on certain meristic characters of three Synodontis species from the Nile at Egypt. Bull. Facl. Sci., Assiut Univ., 20: 1-11.

  84. Mekkawy, I.A.A., 1990. Some biological studies of the Nile characid fish, Alestes nurse (Ruppel , 1832) , from the Nile at Assiut, Egypt. Bull. Fac. Sci., Assiut Univ., 19: 71-98.

  85. Mekkawy, I.A.A., 1990. Size and shape variation of certain morphometric characters of three Nile mormyrid populations: A factor analysis study. Bull. Fac. Sci. Assiut Univ., 19: 17-36.

  86. Mekkawy, I.A.A., 1990. Multivariate analysis of some morphom-etric and meristic characters of the Nile charcoid fish, Alestes baremose (Joannis,1832) from Assiut, Egypt. Bull. Fac. Sci. Assiut Univ., 19: 99-110.

  87. Mekkawy, I.A.A., 1990. A proposed regression-adjustment equ-ation for the study of patterns of variations in certain Nile mormyrid populations by principal component analysis. Bull. Fac. Sci. Assiut Univ., 19: 1-15.

  88. Mekkawy, I.A.A., 1987. Taxonomic studies on some Nile Mormyriform fishes. Ph.D. Thesis, Assiut University, Egypt..

  89. Khalil, A., E.G. Yoakim and I.A.A. Mekkawy, 1983. Verteb-ral count as a meristic character of two Nile charcoid fishes, Alestes nurse and Alestes baremose. Assiut Vet. Med. J., 11: 60-82.
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  90. Khalil, A., E.G. Yoakim and I.A.A. Mekkawy, 1983. Studies on certain characters of two Nile charcoid fishes, Alestes nurse and Alestes baremose. Assiut Vet. Med. J., 11: 61-72.

  91. Khalil, A., E.G. Yoakim and I.A.A. Mekkawy, 1983. Biom-etric studies on the Nile charcoid fish, Alestes baremose, from Assiut. Assiut Vet. Med. J., 11: 53-58.

  92. Khalil, A., E.G. Yoakim and I.A.A. Mekkawy, 1982. Ide-ntification of two Nile fish species of the genus Alestes by scale characteristics. Bull. Fac. Sci. Assiut Univ., 11: 185-207.

  93. Khalil, A., E.G. Yoakim and I.A.A. Mekkawy, 1982. Biom-etric studies of the Nile charcoid fish, Alestes nurse, from Assiut and Aswan. Bull. Fac. Sci. Assiut Univ., 11: 253-277.

  94. Mekkawy, I.A.A., 1980. Studies of the Nile fishes, taxonomy: Family Characidae. M.Sc. Thesis, Assiut University, Egypt..