1. Elgendy, M.Y., W.S. Soliman, H.A. Hassan, A.M. Kenawy and A.M. Liala, 2015. Effect of abrupt environmental deterioration on the eruption of vibriosis in mari-cultured shrimp, Penaeus indicus, in Egypt. J. Fish. Aquatic Sci., 10: 146-158.
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2. El-Badawi, A.A., A.Y. Gaafar, H.H. Abbas and M.M.N. Authman, 2015. Toxic effects of neem seeds oil on Nile Tilapia (Oreochromis niloticus) and application of different trials of control. J. Pharmaceut. Biol. Chem. Sci., 6: 645-658.
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3. Authman, M.M., M.S. Zaki, E.A. Khallaf and H.H. Abbas, 2015. Use of fish as bio-indicator of the effects of heavy metals pollution. J. Aquacult. Res. Dev., Vol. 6. 10.4172/2155-9546.1000328.
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4. El-Badawi, A.A. and H.H. Abbas, 2014. Use of hematological and biochemical parameters and histological changes to assess the toxicity of drumstick tree (moringa oleifera) seeds extract on tilapia (oreochromis niloticus) fish. Egypt. J. Aquat. Biol. Fish., 18: 21-40.
5. Authman, M.M.N., H.H. Abbas and W.T. Abbas, 2013. Assessment of metal status in drainage canal water and their bioaccumulation in Oreochromis niloticus fish in relation to human health. Environ. Monit. Assess., 185: 891-907.
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6. Abbas, H.H., M.M. Authman, M.S. Zaki and G.F. Mohamed, 2012. Effect of seasonal temperature changes on thyroid structure and hormones secretion of White Grouper (Epinephelus aeneus) in Suez Gulf, Egypt. Life Sci. J., 9: 700-705.
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7. Mahmoud, A.E., S.Z. Mona, R.Y.D. Abdel, H.A. Hossam, K.A.H. Osman and A.A.Z. Attia, 2011. Seasonal variations and prevalence of some external parasites affecting freshwater fishes reared at upper Egypt. Life Sci. J., 8: 397-400.
8. Khalil, W.K., W.S. Hasheesh, M.A.S. Marie, H.H. Abbas and E.A. Zahran, 2011. Assessment the impact of 17α-methyltestosterone hormone on growth, hormone concentration, molecular and histopathological changes in muscles and testis of nile tilapia; Oreochromis niloticus. Life Sci. J., 8: 329-343.
9. Hasheesh, W.S., M.A.S. Marie, H.H. Abbas, M.G. Eshak and E.A. Zahran, 2011. An Evaluation of the effect of 17α-methyltestosterone hormone on some biochemical, molecular and histological changes in the liver of nile tilapia; Oreochromis niloticus. Life Sci. J., 8: 343-358.
10. Abbas, H.H. and W.T. Abbas, 2011. Assessment study on the use of Pawpaw; Carica papaya seeds to control Oreochromis niloticus breeding. Pak. J. Biol. Sci., 14: 1117-1123.
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11. Abomourad, I.M.K., H.H. Abbas, A.A. El-Badawi and M.M.N. Authman, 2010. Toxicological assessment of thiobencarb and dithiopyr on Nile tilapia. Online J. Vet. Res., 14: 233-245.
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12. Abbas, H.H. and M.M.N. Authman, 2009. Effects of accumulated selenium on some physiological parameters and oxidative stress indicators in tilapia fish (Oreochromis spp.). Am.-Eurasian J. Agric. Environ. Sci., 5: 219-225.
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13. El-Badawi, A.A., M.M. Authman, H.H. Abbas and O.A. Radwan, 2008. Toxicity of Dithiopyr herbicide to Nile tilapia (Oreochromis niloticus): Singly and in combination with Thiobencarb. J. Egypt. Vet. Med. Assoc., 68: 33-58.
14. Abbas, H.H., F.K. Ali and A.M. Kenawy, 2008. Assessment study about using underground water for tilapia culture for the first time in El-Bahria oasis desert, Egypt. Nutr. Health, 19: 237-256.
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15. El-Dib, M.A., M.I. Badawy, A.M. Abd-El-Aty, H.H.H. Abbas and M.E.M. Ali, 2007. Toxicity assays applied to wastewater of 10th of Ramadan industrial city, Egypt. Bull. Natl. Res. Centre Egypt, 32: 635-645.
16. Authman, M.M.N. and H.H.H. Abbas, 2007. Accumulation and distribution of copper and zinc in both water and some vital tissues of two fish species (Tilapia zillii and Mugil cephalus) of Lake Qarun, Fayoum Province, Egypt. Pak. J. Biol. Sci., 10: 2106-2122.
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17. Abbas, H.H.H., H.M. Mahmoud and J.D. Miller, 2007. Vitamin C and cadmium toxicity in fish Oreochromis niloticus. Online J. Vete. Res., 11: 54-74.
18. Abbas, H.H., M.M. Authman, I.M.K. Abomourad and A.A. El-Badawi, 2007. Studies on the effect of thiobencarb herbicide on some biological, physiological, biochemical, histological and genetic aspects of Nile tilapia, Oreochromis niloticus. Egypt. J. Aquat. Biol. Fish., 11: 123-150.
19. Abbas, H.H. and F.K. Ali, 2007. Study the effect of hexavalent chromium on some biochemical, citotoxicological and histopathological aspects of the Orechromis spp. Fish. Pak. J. Biol. Sci., 10: 3973-3982.
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20. Abbas, H.H.H., A.S. Abdel-Gawad and A.A. Akkr, 2006. Toxicity and efficacy of lidocaine as an anesthetic for Nile tilapia; Oreochromis niloticus. Online J. Vet. Res., 10: 31-41.
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21. Abbas, H.H., 2006. Acute toxicity of ammonia to common carp fingerlings (Cyprinus carpio) at different pH levels. Pak. J. Biol. Sci., 9: 2215-2221.
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22. Agoz, H.M., H.H. Abbas and H.M. Mahmoud, 2005. Rice-Fish-Azolla integrated culture systems. J. Egyp. Acad. Soc. Environ. Develop., 6: 65-85.
23. Mahmoud, H.M. and H.H.H. Abbas, 2004. Accumulation of copper and lead mixture in blood and some selected organs of blue tilapia (Oreochromis aureus) and African catfish (Clarias gariepinus). Egypt. J. Aqua. Biol. Fish, 8: 181-202.
24. Abbas, H.H.H. and H.M. Mahmoud, 2004. Hematological and biochemical changes in Oreochromis aureus and Clarias gariepinus exposed to mixture of copper and lead salts. Egypt. J. Basic. Applied Physiol., 3: 89-106.
25. Abdel-Gawad, A.S., H.H. Abbas, A.A. Salama and E. Ibrahim, 2003. The effect of different artificial feeding periods on production some biochemical and physiological traits of Nile tilapia and its economical efficiency. J. Egypt. Acad. Soc. Environ. Develop., 4: 45-61.
26. Abbas, H.H. and H.M. Mahmoud, 2003. The toxicological effects of water pollution on the Nile tilapia fish (Oreochromis niloticus) collected from four sites along the River Nile. J. Egypt. Vet. Med. Assoc., 63: 307-323.
27. Abbas, H.H., K.H. Zaghloul and M.A. Mousa, 2002. Effect of some heavy metal pollutants on some biochemical and histopathological changes in blue tilapia: Oreochromis aureus. Egypt. J. Agric. Res., 80: 1395-1411.
28. El-Nagar, G.O., M.A.S. El-Deen and H.H.H. Abbas, 2001. Effect of copper and lead toxicity on some physiological characteristics of blue tilapia Oreochromis aureus and african catfish Clarias gariepinus exposed to copper and lead. J. Egypt. German Soci. Zool., 34: 225-244.
29. Abbas, H.H.H., 2000. Changes in body weight gain of blue tilapia, Oreochromis aureus during long-term exposure to sublethal concentrations of formalin. Egypt. J. Agric. Res., 78: 1801-1810.
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