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Prof. Usama Mohamed Mahmoud Kassem

Professor, Department of Zoology , Faculty of Science, ِِAssiut University

C.V Details




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Current Address

:

Egypt - Assiut City - El Gomhoria St. - Borg Al ansaar

Office Tel.

:

082262

Home Tel.

:

0020882307616

Mobile No.

:

01221037483

Fax No.

:

0020882342708

E-Mail

:

Usama_kasem2005@aun.edu.eg
Usama_kasem2005@yahoo.com

google scholar link

:

https://scholar.google.com.eg/citations?user=wbX02FwAAAAJ&hl=en
Educational Qualifications:
  • Ph. D. In zoology ( Fish Taxonomy ) , Faculty of Science, Assiut university, 1988
  • M. Sc. In zoology ( Fish Taxonomy ) , Faculty of Science, Assiut university, 1981
  • B. Sc. In zoology, Faculty of Science, Assiut university, 1975


 

 
  • Professor, Department of Zoology , Faculty of Science, ِِAssiut University, 2013
  • Professor, Department of Zoology , Faculty of Science, Assiut University, 2008
  • Associate Professor, Department of Zoology , Faculty of Science, Assiut University, 1994
  • Lecturer, Department of Zoology , Faculty of Science, Assiut University, 1988
  • Assistant Lecturer, Department of Zoology , Faculty of Science, Assiut University, 1981
  • Demonstrator, Department of Zoology , Faculty of Science, Assiut University, 1975
 

Past Positions :

  • Vice Dean for Education and Student Affairs, Faculty of Specific Education, Assiut University, sinceOctober 2010
  • Research fields:
    catfish Clarias gariepinus , embryonic development , Toxic effects , African catfish , developmental stages , DNA damage

    Publications:

    1 - Usama M Mahmoud, Ola I Muhammad and Alaa El-Din H Sayed, Characterization of Blood Cells, Hematological and Biochemical Parameters in Diplodus noct from the Red Sea, Journal of Marine Biology & Oceanography, International Publisher of Science, Technology and Medicine Publisher of Science, Technology and Medicine, 5, 1-6, http://dx.doi.org/10.4172/2324-8661.1000148, February, 2016
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    2 - Usama M. Mahmoud, Fatma Essa, Alaa El-Din H. Sayed∗, Surface architecture of the oropharyngeal cavity and the digestive tract of Mulloidichthys flavolineatus from the red sea, Egypt: A scanning electron microscope study, Tissue and Cell, Elsevier, 48, 624–633, http://www.elsevier.com/locate/tice, September, 2016
    3 - Alaa El-Din H. Sayed a,*, Usama M. Mahmoud b, Imam A. Mekkawy, Erythrocytes alterations of monosex tilapia (Oreochromis niloticus, Linnaeus, 1758) produced using methyltestosterone, Egyptian Journal of Aquatic Research, Elsever, xxx, xxx-xxx, http://ees.elsevier.com/ejar, October, 2015
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    4 - Imam A.A. Mekkawy, Usama M. Mahmoud, Ekbal T. Wassif and Mervat Naguib, 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, journal of Fisheries and Aquatic Science, Vol. 5 - No. 8, pp. 553-580, 2013
    5 - Imam A. A. Mekkawy;, Usama M. Mahmoud and Rehab H. Mohammed, Protective effects of tomato paste and Vitamin E on Atrazine-Induced Hematological and biochemical characteristics of Clarias gariepinus (Burchell,1822), Glo. Adv. Res. J. Environ. Sci. Toxicol., Vol. 2 - No. 1, pp. 011-021, 2013
    6 - Imam A. A. Mekkawy Usama M. Mahmoud Rehab H. Mohammed, Protective effects of tomato paste and Vitamin E on Atrazine-Induced Hematological and biochemical characteristics of Clarias gariepinus (Burchell,1822), Global Advanced Research Journal of Environmental Science and Toxicology, Global Advanced Research Journals, (2-1) , (pp. 011-021), http://garj.org/garjest/index.htm, January, 2013
    7 - Alaa El-DinH.Sayed , UsamaM.Mahmoud, ImamA.Mekkawy, Reproductivebiomarkerstoidentifyendocrinedisruption in Clarias gariepinus exposedto4-nonylphenol, Ecotoxicology andEnvironmentalSafety, Vol. 78, PP.310–319, 2012
    8 - Alaa El-Din H. Sayed, Imam A. Mekkawy and Usama M. Mahmoud, Histopathological Alterations in some Body Organs of Adult Clarias gariepinus (Burchell, 1822) Exposed to 4-Nonylphenol, Zoology intechopen, 2012
    9 - Alaa El-Din H. Sayed, Sara S. Abdel Hakeem, Usama M. Mahmoud and Imam A. Mekkawy, 4-Nonylphenol induced morphological and histopathological malformations in Bufo regularis tadpoles, Global Advanced Research Journal of Environmental Science and Toxicology, Global Advanced Research Journals, 6(1), 143-151, September, 2012
    10 - Alaa El-Din H. Sayed, Usama M. Mahmoud, Imam A. Mekkawy, Toxic effects of 4-nonylphenol on the embryonic development of African catfish Clarias gariepinus (Burchell, 1822), International Journal of Biology and Biological Sciences, Academe Research Journals, 1(2), 034-046, http://academeresearchjournals.org/journal/ijbbs, December, 2012
    11 - Alaa El-Din H. Sayed, Usama M. Mahmoud and Imam A. Mekkawy, Genotoxicity induced by 4-Nonylphenol in adult and embryos of Clarias gariepinus, Global Advanced Research Journal of Environmental Science and Toxicology, Global Advanced Research Journals, 1(9), 234-246, http://garj.org/garjest/index.htm, December, 2012
    12 - I.A.A. Mekkawy, U.M. Mahmoud, E.T. Wassif and M. Naguib, Protective Roles of Tomato Paste and Vitamin E on Cadmium-induced Histological and Histochemical Changes of Liver of Oreochromis niloticus (Linnaeus, 1758), journal of Fisheries and Aquatic Science, Vol. 7 - No. 4, pp. 240-265, 2012
    13 - Usama M. Mahmoud, Imam A. Mekkawy, Ahmed Th. A. Ibrahim, 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. , Vol. 4 - No. 4, pp. 218-234, December, 2012
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    14 - Imam A.A. Mekkawy, Usama M.Mahmoud, and Eman M. Hassanien, Trend analysis of some commercial fishes catch in the River Nile in Upper Egypt, Assiut Univ. J. Of Zoology, Vol. 41 - No. 2, pp. 67 - 84, 2012
    15 - Usama M. Mahmoud, Imam A. Mekkawy and Ahmed Th. A Ibrahim, Haematological response of the African catfish: Clarias gariepinus (Burchell, 1822) to sublethal concentrations of mercury chloride with supplementation of selenium and vitamin E., Conference: Fifth Saudi Science, At Om El-qura. Saudi Arabia, April, 2012
    16 - Imam A. Mekkawy, Usama M. Mahmoud, Alaa El-Din H. Sayed, Effects of 4-nonylphenol on blood cells of the African catfish Clarias gariepinus (Burchell, 1822), Tissue and Cell, Elsiver, Tissue andCell xxx (2011), xxx–xxx, http://www.ncbi.nlm.nih.gov/pubmed/21501852, March, 2011
    17 - Alaa El-Din H. Sayed, Imam A.A. Mekkawy and Usama M. Mahmoud, Effects of 4-nonylphenol on metabolic enzymes, some ions and biochemical blood parameters of the African catfish Clarias gariepinus (Burchell, 1822)., African Journal of Biochemistry Research, Academic Journals, 5(9), 287-297, http://www.academicjournals.org/AJBR, September, 2011
    18 - Imam A. A. Mekkawy, Usama M. Mahmoud, Ekbal T. Wassif, Mervat Naguib, Effects of cadmium on some haematologicaland biochemical characteristics of Oreochromis niloticus(Linnaeus, 1758) dietary supplemented with tomato paste and vitamin E, Fish Physiol Biochem, Vol. 37 - No. 1, pp. 71-84, 2010
    19 - Imam A. A. Mekkawy, Usama M. Mahmoud and Rehab H. Mohammed, Protective effects of tomato paste and Vitamin E on Atrazine-Induced Hematological and biochemical characteristics of Clarias gariepinus (Burchell,1822) , Global Advanced Research Journal of Environmental Science and Toxicology , Vol.2, No.1, PP.011-021, 2010
    20 - Imam, A.A. Mekkawy, Usama, M. Mahmoud, Alaa G. Osman, Alaa El_Din H. Sayed , Effects of ultraviolet–A on the activity of two metaboloic enzymes, DNA damage and lipid peroxidation during early developmental stages of the African catfish, Clarias gariepinus (Burchell, 1822), Fish Physiol Biochem, DOI 10.1007/s10695-009-9334-6, http://www.springer.com/life+sciences/ecology/journal/10695, May, 2009
    21 - Usama M. Mahmoud, Imman A.A. Mekkawy, Alaa El-Din H. Sayed *, Ultraviolet radiation-A (366 nm) induced morphological and histological malformations during embryogenesis of Clarias gariepinus (Burchell, 1822), Journal of Photochemistry and Photobiology B: Biology, Elsevier, 95, 117–128, http://ees.elsevier.com/jphotobiol/default.asp, February, 2009
    22 - Harabawy, A.S.A. ; Mekkawy, I.A.A.; Mahmoud, U.M.; Abdel-Rahman, G. H. and Khidr B. M., Surface architecture of the oropharyngeal cavity and the digestive tract of Bagrus docmak (Forsskål, 1775) and Clarias gariepinus (Burchell, 1822) (Teleostei) from the Nile River: a scanning electron microscope study, J. Egypt. Ger. Soc. Zool. , Vol. 56 - No. C , pp. 171-198, 2008
    23 - Mekkawy, I.A.A.; Mahmoud, U.M; and Ibrahim, A. Th., 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., Vol. 55 - No. B, pp. 97-127, 2008
    24 - Alaa El-Din H. Sayed, Ahmed Th. Ibrahim, Imam A.A. Mekkawy, Usama M. Mahmoud, , Acute effects of Ultraviolet –A on some biochemical and histological parameters of African Catfish Clarias gariepinus (Burchell, 1822), Journal of Photochemistry and Photobiology B: Biology 89 , Elsevier, 89 , 170–174., http://ees.elsevier.com/jphotobiol/default.asp, March, 2007
    25 - Harabawy, A.S.A. ; Mekkawy, I.A.A. and Mahmoud, U.M., A comparative study of scale Characterstics and their functional morphology of four Goatfishes (Familiy MULLIDAE) from the Red sea, Egypt. Soc. Biotech. Environ. Sci., Vol. 9 - No. A, pp. 123-163, 2007
    26 - Mahmoud, U.M and Mekkawy, I.A.A., Ultrastructure of the spermatozoa of each of Oreochromis niloticus, Tilapia zillii and Sarotherodon galilaeus spermatozoa (teleostei, perciformes, cichlidae) from Assiut, Egypt, J. Egypt. Ger. Soc. Zool., Vol. 54 - No. B, pp. 9-18, 2007
    27 - Mekkawy, I.A.A.; Mahmoud, U.M; and Ibrahim, A. Th., 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, Vol. 54 - No. A, pp. 119-137, 2007
    28 - Mekkawy, I.A.A.; Mahmoud, U.M; and Mohammad, A.S., Biological characteristics and fisheries of Cephalopholis argus (Bloch and Schneider, 1801), Cephalopholis miniata (Forsskal, 1775) and Varioa louti (Forsskal, 1775) (Family : Serranidae) from the Red Sea, Egypt, J. Egypt. Ger. Soc. Zool., Vol. 53 - No. B, pp. 65 - 107, 2007
    29 - Mekkawy, I.A.A. ; Mahmoud, U.M ; and Ibrahim, A. Th., 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., 54(B), 1-16, May, 2007
    30 - Mekkawy, I.A.A.; Mahmoud, U.M; and Ibrahim, A. Th., 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(A), 119-137., September, 2007
    31 - Sayed, A.H.; Ibrahim, A. Th.; Mekkawy, I.A. and Mahmoud, U.M., Effects of Ultraviolet radiation on some biochemical and Histological parameters of African catfish, Clarias gariepinus (Burchell, 1822), J. Aquat. Biol. and fish., 11(3), 167-176, 8, 2007
    32 - Sayed, A.H.; Ibrahim, A. Th.; Mekkawy, I.A. and Mahmoud, U.M. , Acute effects of Ultraviolet-A radiation on African Catfish Clarias gariepinus (Burchell, 1822), Journal of Photochemistry and Photobiology B: Biology , 89, 170–174, December, 2007
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    33 - Mekkawy, I.A.A.; Mahmoud, U.M; Kider, B.M. and Mohammad, A.S. , Scale characteristics of three species of grouper fishes (subfamily: Epinephelinae) from Red sea, Egypt., Vol. 26(A): Zoology, 26, 25-30 , November, 2006
    34 - Mekkawy, I.A.A.; Mahmoud, U.M; Harabawy, A.S.A., Biology, fisheries and population dynamics of three species of genus Lethrinus (Family Lethrinidae) from the Red Sea, Egypt, J. Egypt Ger. Soc. Zool., Vol. 46 - No. B, pp. 203-246, 2005
    35 - Mahmoud, U.M; Mekkawy, I.A.A; Harabawy, A.S.A., Scale characteristics of seven species of genus Lethrinus (Family Lethrinidae) from the Red Sea, Egypt, Egypt J. Zool., Vol. 44, pp. 545-580, 2005
    36 - Mekkawy, I.A.A.; Mahmoud, U.M; Harabawy, A.S.A. , Identification of four Labeo fish species from the Nile, Egypt by their scale characteristics and scanning electron microscopy., J. Union Arab Biol. Cair, October, 2003
    37 - Mahmoud, U. M., Sexual dimorphism of morphometrics of Barbus bynni (Forskal, 1775) from the Nile at Assiut, Egypt., Bull Fac. Sci. Assiut Univ., 2002
    38 - Mahmoud, U. M. , Electrophoretic studies on the proteins of blood serum, eye lens and muscles of Oreochromis niloticus (Linnaeus, 1758), Tilapia zillii (Gervais, 1848) and Sarotherodon galilaeus, (Linnaeus, 1758) from the Nile at Assiut, Egypt., Bull. Fac. Sci., Assiut Univ, 1995
    39 - Mahmoud, U. M. , On morphomerics and allometry of Bagrus bayad (Forskal, 1775) and Bagrus docmac (Forskal, 1775) from the Nile at Egypt, Assiut Vet, Med. J.,, 1993
    40 - 29- Yoakim, E.G.; Mekkawy, I.A.A.; Mahmoud, U. M. and Harabawy, A.S.A. , Electrophoretic study of intra- and inter-specific isozyme variations of Bagrus bayad (Forskal, 1775) and Bagrus domac (Forskal , 1775) (Teleostei , Bagridae) from the Nile at Assiut, Egypt., Bull. Fac. Sci., Assiut Univ.,, 1993
    41 - Yoakim, E.G.; Mahmoud, U.M.; Mekkawy, I.A.A. and Harabawy, A.S.A, 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., 1993
    42 - Yoakim, E.G.; Mahmoud, U. M.; Mekkawy, I.A.A. and Harabawy, A.S.A. , Some biological characteristics of Bagrus bayad (Forskal,1778) from the Nile at Assiut, Egypt. , Bull. Fac. Sci., Assiut Univ., 1993
    43 - Yoakim, E.G.; Mekkawy, I. A. A.; Mahmoud, U.M. and Harabawy, A.S.A. , A study of certain biological aspects of Bagrus docmac (Forskal, 1775) from the Nile at Assiut, Egypt., Bull. Fac. Sci., Assiut Univ. , 1993
    44 - Mahmoud, U. M, Some biological aspects of the Nile cyprinoid fishes, Labeo horie Hckel, 1846 at Assiut, Egypt., J. Egypt. Ger. Soc. Zool. , 1992
    45 - Mekkawy, I.A.A. and Mahmoud, U. M., Intra- and inter¬specific morphometric and osteometric variations in Synodontis populations of Egypt., J.Egypt Ger. Soc. Zool.,, 1992
    46 - Mekkawy, I.A.A. and Mahmoud, U. M. , Morphometric and meristic studies of four Labeo species from the Nile at Egypt, J. Egypt Ger. Soc. Zool.,, 1992
    47 - Mekkawy, I.A.A. and Mahmoud, U. M., 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, 1992
    48 - Mahmoud, U. M. and Mekkawy, I.A.A., Studies on certain meristic characters of three Synodontis species from the Nile at Egypt. , Bull. Fac. Sci. , Assiut Univ., 1991
    49 - Khalil, A., Yoakim, E. G. and Mahmoud, U. M., Biometric and meristic studies on Nile cyprinoid fish labeo horie and labeo forskalii, from Assiut., Vet. Med. J., , 1984
    50 - Khalil, A., Yoakim, E. G. and Mahmoud, U. M., Biometic and meristic studies on Nile cyprinoid fish, labeo niloticus from Lake Nasser Assiut Vet., Med. J.,, 1984
    51 - Khalil, A., Yoakim, E. G. and Mahmoud, U. M., Some skull bones of taxonomic importance in two Nile cyprinoid fishes, Labeo horie and Labeo forskalii from Assiut. , Assiut Vet. Med. J., , 1984

    Supervisions :

    1- Alaa el-din Hamid Sayed Ali , Effects of 4-Nonylphenol on Some Organs,Hormones,and the Embryonic Development of the African Catfish Clarias Gariepinus(Burchell;1822), Ph. D., 26 June 2011
    Supervisors : Imam Abd el-ghany Ahmed Mekkawy, Usama Mohamed Mahmoud
    2- Ahmed Thabet Abdel-monem Ibrahim , Antioxidative Potential of Selenium and Vitamin E against Mercury Induced Toxicity in Clarias Gariepinus (Burchell;1822) from Assiut-Egypt, Ph. D., 30 October 2011
    Supervisors : Imam Abd el-ghany Ahmed Mekkawy, Usama Mohamed Mahmoud
    3- Khaled Yousef Abu El-Fadl, Study of the Impacts of Some Parasites on Certain Biological Characteristics of Two Fish Species: Oreochromis Niloticus and Tilapia Zillii, M. Sc, 28 December 2008
    Supervisors : Imam Abd El-Ghany Ahmed Mekkawy, Usama Mohmed Mahmoud, Aziza Marwan Ahmed Marwan
    4- Samia Mohsen Mohammed Hassan El-Mahdy , Fish Stock Assessment of the Fisheries of Some Fish Species of Lake Manzala, Egypt, M. Sc, 26 January 2011
    Supervisors : Imam Abd El-Ghany Ahmed Mekkawy, Usama Mohamed Mahmoud
    5- Ahmed Thabet Abdel monem Ibrahim, Patterns of Heavy Metals Distribution and Pollution-Induced Changes in some Organs of Three Nile Fish Species from Assiut,Egypt, M. Sc, 22 January 2008
    Supervisors : Imam Abd el-ghany Ahmed Mekkawy, Usama Mohamed Mahmoud
    6- Sara Salah Abdel-Hakeem Abdel-Raheem, The Biological Effect of Herbicide Atrazine on The Early Embryonic Stages of African Catfish Claris Gariepinus (Burchell, 1822), M. Sc, 20 March 2012
    Supervisors : Imam Abd El-Ghany Ahmed Mekkawy, Usama Mohamed Mahmoud
    7- Kamal Ahmed Awadh Baaoom, Structure of the Digestive Tract of some Nile Fishes in Relation to Their Food and Feeding Habits: A Light and Electron Microscope Study, D. Sc., 25 April 2012
    Supervisors : Usama Mohamed Mahmoud, Gamal Hassan El-Sokkary
    8- Esmail Mohamed Mehamed Alhemmali, Effects of the Insecticide Diazinon and its Interactions with Supplementations of Vitamin C and Vitamin E on some Haematological, Biochemical and Histopathological Characteristics of Clarias Gariepinus , Ph. D., 12 February 2013
    Supervisors : Abdallah Bakr Mahmoud, Usama Mohamed Mahmoud
    9- Eman Mansour Hassanien Hamam , Fish Stock Assessment of Some Commercial Fishes in the River Nile in Upper Egypt, M. Sc, 9 July 2013
    Supervisors : Imam Abd El-Ghany Ahmed Mekkawy, Usama Mohamed Mahmoud
    10- Sara Salah Abdel-Hakeem Abdel-Raheem, The biological effect of herbicide atrazine on the early embryonic stages of African catfish Clarias gariepinus (Burchell, 1822), M. Sc, 23 October 2012
    Supervisors : Prof. Dr/ Imam A. Mekkawy Prof. Dr/ Usama M. Mahmoud
    11- Ola Ibrahim Moahmed, Haematological, biocehmical, and histological charachteristics for some fish species from the Red sea , M. Sc, 10 May 2017
    Supervisors : Usama Mohamed Mahmoud Alaa El-Din Hamid Sayed
    Number of courses0 course