Dr. Olfat Malak Wahbi
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Dr. Olfat Malak Wahbi

Assistant Professor
National Institute of Oceanography and Fisheries, Egypt

Highest Degree
PostDoc. in Reproduction from National Institute of Oceanography and Fisheries, Egypt

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graduated from faculty of science , Alexandria,Egypt (1977) Department of Zoology. M.Sc.( 1992) - Faculty of Science,Ph.D(1998) Faculty of science and Assist.Prof.(2005)National Institute of Oceanography and Science,Alexandria ,Egypt.

Area of Interest:

Environmental Sciences
Environmental Condition

Research Publications in Numbers


Selected Publications

  1. Wahbi, O.M and Z.A. El-Greisy, 2016. Impact of water quality at different locations of Alexandria Mediterranean coast on the pituitary-ovarian axis of gilthead Seabream Sparus aurata. J. Fish. Aquat. Sci., 11: 244-254.
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  2. Elham, A.W., M.W. Olfat, M.S. Eman and M.S. Norhan, 2016. Response of European seabass (Dicentrarchus labrax) to canola oil Diets: Effect on growth performance, fish health and liver and intestine histomorphology. Aquacult. Int., 24: 1073-1088.
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  3. El-Ebiary, E.H., O.M. Wahbi and Z.A. El-Greisy, 2013. Influence of dietary cadmium on sexual maturity and reproduction of red tilapia. Egypt. J. Aquat. Res., 39: 313-317.
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  4. Elham, A.W., M.W. Olfat and S.M. Shalaby, 2012. Effects of dietary vegetable oils on liver and gonad fatty acid metabolism and gonad maturation in gilthead seabream (Sparus aurata) males and females. Aquacul. Int., 20: 255-281.
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  5. El-Greisy, Z.A., O.M. Wahbi and E.H. El-Ebiary, 2012. Depuration in Oreochromis niloticus following chronic exposure to industrial effluent during their newly hatched larval stage. Calcatta J. Nat. His., 7: 70-81.
  6. Shalaby, S.M., A.Y. El- Dakar, M.W. Olfat and P.S. Imad, 2011. Growth , feed utilization and body composition of white sea bream Diplodus sargus juveniles offered diets with various protein and energy levels. J. KAU Mar. Sci., 22: 3-17.
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  7. Moharram, S.G., O.M. Wahbi and Z.A. El-Greisy, 2011. Effect of polluted water from the Egyptian Eastern Mediterranean coast on reproductive, toxicological and hematological characteristics of Siganus rivulatus. Pak. J. Biol. Sci., 14: 668-681.
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  8. Abdel-Warith, A.A., E.M. Younis, N.A. Al-Asgah and O.M. Wahbi, 2011. Effect of zinc toxicity on liver histology of nile tilapia, Oreochromis niloticus. Sci. Res. Essays, 6: 3760-3769.
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  9. Wahbi, O.M., N.M. Abou-Shabana, M.A. Essa and M.I. Zaki, 2010. Histological and ultrastructural alterations on mullet fries exposed to industrial effluents. Egypt. J. Aquat. Res., 36: 185-201.
  10. Wahbi, O.M and S.M. Shalaby, 2010. Oral administration of testosterone in fish diet effect sex differentiation and testis development in Tilapia. Res. J. Agric. Biol. Sci., 6: 946-952.
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  11. Wahbi, O.M and Z.A. El-Greisy, 2007. Comparative impact of different waste sources on the reproductive parameters and histology of gonads, liver and pituitary of Siganus rivulatus. J. Appl. Sci. Res., 3: 236-244.
    Direct Link  |  
  12. Elham, A.W., M.W. Olfat and M.S. Eman, 2007. Effect of dietary vegetable oils on health and liver histology of Gilthead seabream (Sparus aurata) growers. Aquacult. Res., 38: 852-861.
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  13. Wahbi, O.M., 2004. Effect of Egyptian copper works effluent on reproduction of Siganus rivulatus. J. Egypt. Acad. Soc. Environ. Dev., 5: 69-86.
  14. Shymaa, M.M.S., A.Y. El Dakar, A.I. Abd Elmonem and O.M. Wahbi, 2004. Growth, physiological, histological and economic responses of Nile tilapia, Oreochromis niloticus to dietary levels of faba bean middling. J. Agric. Sci. Mansoura Univ., 29: 3175-3196.
  15. Olfat, M.W., S.M.M. Shalaby and A.Y. El-dakar, 2004. Effect of Pulp and Paper industrial effluent on some blood parameters, gonads and flesh proteins in experimentally exposed sea bream Lithognathus mormyrus. Egypt. J. Aquat. Res., 30: 67-76.
  16. Olfat, M.W., 2004. Alterative effect of low pH value on gametes development and reproduction process of Diplodus sargus. J. Egypt. Acad. Soc. Environ. Dev., 5: 9-26.
  17. Olfat, M.W and S.M.M. Shalaby, 2004. Histological and ultrastructural changes in liver and gonads of Tilapia zillii exposed to different salinity levels. Egypt. J. Aquat. Res., 30: 187-197.
  18. El-Dakar, A.Y., S.M.M. Shalaby, A.I. Abd Elmonem and O.M. Wahbi, 2004. Enhancement of performance using fennel seeds meal as feed additive for Nile tilapia Oreochromis niloticus. J. Egypt. Acad. Soc. Environ. Dev., 5: 43-67.
  19. Abd Elmonem, A.I., S.M.M. Shalaby, A.Y. El Dakar and O.M. Wahbi, 2004. Nutritional evaluation of sesame hulls by-product as a non conventional feedstuff in diets of red tilapia, Oreochromis niloticus Oreochromis mosambicus. Alex. J. Agric. Res., 49: 1-13.
  20. Shymaa, M.M.S., A.I. Abd Elmonem, A.Y. El Dakar and O.M. Wahbi, 2003. Improvement of growth and feed utilization by using licorice roots(Erksous) as a feed additive in diets of Nile Tilapia, Oreochromis niloticus fingerlings. J. Egypt. Acad. Soc. Environ. Dev., 4: 119-142.
  21. Mohamed, H.M and M.W. Olfat, 2000. Effect of low environmental pH on some histological and hematological aspects of carp, Cyprinus carpio L. Bull. Hi. Inst. Pub. Health, 30: 179-190.