Dr. Ugwemorubong Ujagwung Gabriel
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Dr. Ugwemorubong Ujagwung Gabriel

Professor
The Rivers State University, Nigeria

Highest Degree
Ph.D. in Fisheries and Hydrobiology from Rivers State University, Nigeria

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Area of Interest:

Environmental Sciences
100%
Rural Development
62%
Aquatic Pollution
90%
Biotechnology
75%
Toxicology
55%

Research Publications in Numbers

Books
0
Chapters
0
Articles
0
Abstracts
0

Selected Publications

  1. Obomanu, F.G., U.U. Gabriel and O.S. Edori, 2017. Ionic balance in tissues of hybrid african catfish after exposure to chronic levels of Lepidagathis alopecuroides leaves extracts. Chem. Sci. Rev. Lett., 6: 1259-1265.
  2. Obomanu, F.G., U.U. Gabriel and O.S. Edori, 2017. Haemogram, organosomatic indices and plasma biochemistry of Clarias gariepinus injected with ethanolic extract of Lepidagathis alopecuroides. Arch. Curr. Res. Int., 8: 1-12.
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  3. Gabriel, U.U. and A.P. Ugbomeh, 2017. Efficacy of clove flower bud powder as anaesthetic for three life stages of S. melanotheron, O. niloticus and T. guineensis. J. Applied Sci. Environ. Manage., 21: 11-15.
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  4. Gabriel, U.U. and A.P. Ugbomeh, 2016. Effects of cypermethrin on haematological parameters of African freshwater catfish, Clarias gariepinus. J. Aquat. Sci., 31: 433-442.
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  5. Akani, N.P. and U.U. Gabriel, 2016. Enzymatic responses of Clarias gariepinus (Burchell, 1822) exposed to sub-lethal concentrations of an oilfield wastewater. J. Applied Sci. Biotechnol., 4: 26-32.
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  6. Gabriel, U.U., S.N. Deekae, O.A. Akinrotimi and O.O. Orokotan, 2015. Assessment of efficacy and egg hatchability in African catfish Clarias gariepinus exposed to anesthetic metomidate. J. Animal Veterinary Scie., 1: 24-31.
  7. Akani, N.P. and U.U. Gabriel, 2015. Haematological responses of the African Catfish, Clarias gariepinus (Burchell, 1822) exposed to sub-lethal concentrations of an oilfield wastewater in Nigeria. J. Aquat. Sci., 30: 207-220.
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  8. Akinrotimi, O.A., U.U. Gabriel and S.N. Deekae, 2014. Anaesthetic efficacy of sodium bicarbonate and its effects on the blood parameters of African catfish, Clarias gariepinus (Burchell, 1822). J. Aquat. Sci., 29: 233-246.
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  9. Akinrotimi, O.A., E.E. Orlu and U.U. Gabriel, 2013. Haematological responses of Tilapia guineensis treated with industrial effluents. Applied Ecol. Environ. Sci., 1: 10-13.
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  10. Gabriel, U.U., O.S. Edori and O.M. Ogbu, 2012. Plasma and tissue biochemistry of Clarias gariepinus exposed to monoaromatic, toluene. Anim. Res. Int., 9: 1645-1653.
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  11. Gabriel, U.U., O.A. Akinrotimi and V.S. Ariweriokuma, 2012. Changes in metabolic enzymes activities in selected organs and tissue of Clarias gariepinus exposed to cypermethrin. J. Environ. Eng. Technol., 1: 13-19.
  12. Gabriel, U.U., O.A. Akinrotimi and S.V. Ariweriokuma, 2012. Alternations of selected electrolytes in organs of African catfish Clarias gariepinus treated with cypermethrin. Adv. students Res., 2: 53-60.
  13. Gabriel, U.U., A.J. Gbulubo and S. Deekae, 2012. Salinity tolerance of larvae of African catfish Clarias gariepinus (♀) × Heterobranchus bidorsalis (♂) hybrid. Anim. Res. Int., 9: 1654-1664.
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  14. Akinrotimi, O.A., U.U. Gabriel and S.V. Ariweriokuma, 2012. Haematotoxicity of cypermethrin to African catfish Clarias gariepinus under laboratory conditions. J. Environ. Eng. Technol., 1: 20-25.
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  15. Akinrotimi, O.A. and U.U. Gabriel, 2012. Haematological profiles of Clarias gariepinus brood fish raised in water recirculating aquaculture system. Adv. Agric. Sci. Eng. Res., 2: 97-103.
  16. Uedeme-Naa, B., U.U. Gabriel and O.A. Akinrotimi, 2011. The relationship between aquatic macrophytes and water quality in Nta-Wogba stream, Port Harcourt, Nigeria. Continental J. Fish. Aquat. Sci., 5: 6-16.
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  17. Gabriel, U.U., O.A. Akinrotimi and E.E. Orlu, 2011. Haematological characteristics of the Bloody cockle Anadara senilis (L.) from Andoni flats, Niger Delta, Nigeria. Sci. World J., 6: 1-4.
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  18. Gabriel, U.U., I.R. Jack, O.S. Edori, E. Egobueze and O.S. Edori, 2011. Impact of cypermethrin on selected enzymes in tissues of Heterobranchus bidorsalis. West African J. Applied Ecol., 18: 121-127.
  19. Gabriel, U.U., E. Egobueze and O.S. Edori, 2011. Haematoxicity, condition and organ indices of Heterobranchus bidorsalis treated with cymbush under laboratory conditions. Niger. J. Fish., 8: 250-258.
  20. Gabriel, U.U. and O.A. Akinrotimi, 2011. Management of stress in fish for sustainable aquaculture development. Researcher, 3: 28-38.
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  21. Erondu, E., O.A. Akinrotimi and U.U. Gabriel, 2011. Genetic manipulation for enhanced aquaculture production in Nigeria. Biosci. Res. J., 23: 131-140.
  22. Uedeme-Naa, B., U.U. Gabriel and O.A. Akinrotimi, 2010. Physioco-chemical variables nutrient levels and biological productivity of Nta-Wogba stream Port Harcourt, Nigeria. Niger Delta Biologica, 10: 33-42.
  23. Uedeme-Naa, B., U.U. Gabriel and O.A. Akinrotimi, 2010. Aquatic macrophyte cover, biomass and distribution along Nta-Wogba stream, Port Harcourt, Nigeria. Niger Delta Biologica, 10: 1-7.
  24. Perdikaris, C., C. Nathanailides, E. Gouva, U.U. Gabriel and K. Bitchava et al., 2010. Size-relative effectiveness of clove oil as an anaesthetic for rainbow trout (Oncorhynchus mykiss Walbaum, 1792) and goldfish (Carassius auratus Linnaeus, 1758). Acta Vet. BRNO, 79: 481-490.
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  25. Keremah, R.I., U.U. Gabriel, O.A. Akinrotimi and O.O. Sese, 2010. Comparative efficacy and economics of selected hormones in spawning of Heterobranchus bidorsalis and Clarias gariepinus. Niger. J. Applied Res., 2: 83-93.
  26. Keremah, R.I., I.B. Okey and U.U. Gabriel, 2010. Relative toxicity of aqueous leaf extracts of Lepidagathis alopecuroides (Vahl) R. Br. ex Griseb to the clariids, Clarias gariepinus and Heterobranchus bidorsalis fingerlings. Agric. Biol. J. North Am., 1: 834-840.
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  27. Gabriel, U.U., K.B. Macaulay and O.S. Edori, 2010. Acute toxicity and behavioural responses of african catfish, Clarias gariepinus to amine salt of 2,4-D. Chin. J. Appl. Environ. Biol., 16: 347-352.
  28. Gabriel, U.U., F.G. Obomanu, E.E. Orlu and O.D. Oveh, 2010. Fulton`s condition, organ indices and haematological response of catfish hybrid (Heterobranchus longifilis, ♂ x Clarias gariepinus, ♀) to aqueous extracts of leaves of Lepidagathis alopecuroides. Ethiopian J. Environ. Stud. Manage., 3: 30-36.
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  29. Gabriel, U.U., F.G. Obomanu and O.S. Edori, 2010. Biochemical changes in hybrid catfish Heterobranchus bidorsalis x Clarias gariepinus treated with nuracron. Chin. J. Appl. Environ. Biol., 16: 353-357.
  30. Gabriel, U.U. and O.S. Edori, 2010. Quantal responses of hybrid catfish (Heterobranchus bidorsalis × Clarias gariepinus) to agrolyser. J. League Res. Niger., 11: 67-72.
  31. Gabriel, U.U. and E.S. Erondu, 2010. Toxicity of roundup (a glyphosate product) to fingerlings of Clarias gariepinus. Anim. Res. Int., 7: 1184-1193.
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  32. Gabriel, U.U. and E.S. Erondu, 2010. Haemogram of adult Clarias gariepinus exposed to chronic levels of roundup. Anim. Res. Int., 7: 1142-1150.
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  33. Gabriel, U.U and O.S. Edori, 2010. Mortality and behavioural responses of Clarias gariepinus and its hybrid to acute levels of dichlobenil. J. League Res. Niger., 11: 74-81.
  34. Chukwu, K.O., S.N. Deekae and U.U. Gabriel, 2010. Reproductive biology of Periophthalmus barbarus (Linneaus 1766) in new Calabar River, Nigeria. Agric. Biol. J. North Am., 1: 1158-1161.
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  35. Akinrotimi, O.A., U.U. Gabriel and O.M. Edun, 2010. Effect of climate change on aquaculture development in Nigeria. J. Applied Res., 2: 31-41.
  36. Abu, O.M.G., U.U. Gabriel and O.A. Akinrotimi, 2010. Performance and survival of hybrid catfish (Hetero X Clarias) fed with whole cassava root meal as a replacement for maize. J. Trop. Agric. Environ. Extension, 9: 176-183.
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  37. Obomanu, F.G., U.U. Gabriel, O.S. Edori and J.N. Emetonjor, 2009. Biomarker enzymes in muscle tissue and organs of Clarias gariepinus after intramuscular injection with aqueous extracts of Lepidagathis alopecuroides leaves. J. Med. Plant Res., 3: 995-1001.
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  38. Howard, I.C., U.U. Gabriel and J.O. Nduka, 2009. Bioaccumaulation of heavy metals in Periophthalmus papillio and Tympanotonus fuscatus from the mangroves swamps of an oilfield in the Niger-Delta. J. Chem. Soc. Niger., 34: 160-168.
  39. Gabriel, U.U., P. Mark and E.E. Orlu, 2009. Toxicity and behavioural changes in Heterobranchus bidorsalis fingerlings treated with a micronurient fertilizer, agrolyser. Res. J. Environ. Earth Sci., 1: 34-38.
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  40. Gabriel, U.U., O.S. Edori and M.E. Allison, 2009. Acute toxicity of 2,4-dichlorophenoxy acetic acid to hybrid catfish (Clarias gariepinus x Heterobranchus bidorsalis). Int. J. Agric. Rural Dev., 12: 110-120.
  41. Gabriel, U.U., O.A. Akinrotimi and O.O. Orokotan, 2009. Water recirculation system. A Revolutionary tool for sustainable aquaculture development in Nigeria. Int. J. Agric. Rural Dev., 12: 121-135.
  42. Gabriel, U.U., M.B. Inko-Tariah, N.O. Olu and O.A. Akinrotimi, 2009. Influence of water and soil characteristics on abundance of chlorophyll 'a' in Elechi creek, Niger Delta, Nigeria. Int. J. Nat. Applied Sci., 4: 174-180.
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  43. Gabriel, U.U., I.R. Jack, O.S. Edori and E. Egobueze, 2009. Electrolytes in selected tissues of Heterobranchus bidorsalis treated with sublethal levels of cypermethrin. Ethiopian J. Environ. Stud. Manag., 2: 83-87.
  44. Gabriel, U.U., F.G. Obomanu and O.S. Edori, 2009. Haematology, plasma enzymes and organ indices of Clarias gariepinus after intramuscular injection with aqueous leaves extracts of Lepidagathis alopecuroides. Afr. J. Biochem. Res., 3: 312-316.
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  45. Gabriel, U.U., F.G. Obomanu and O.D. Oveh, 2009. Enzymes in selected tissues of catfish hybrid exposed to aqueous extracts from Lepidagathis alopecuroides leaves. Electron. J. Environ. Agric. Food Chem., 8: 856-864.
  46. Gabriel, U.U. and I.B. Okey, 2009. Effect of aqueous leaf extracts of Lepidagathis alopecuroides on the behaviours and mortality of hybrid catfish (Heterobranchus bidorsalis ♂ x Clarias gariepinus ♀) fingerlings. Res. J. Applied Sci., Eng. Technol., 1: 116-120.
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  47. Clinton, H.I., G.U. Ujagwung and M. Horsfall, 2009. Evaluation of total hydrocarbon levels in some aquatic media in an oil polluted mangrove wetland in the Niger Delta. Appl. Ecol. Environ. Res., 7: 111-120.
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  48. Abu, O.M.G., U.U. Gabriel, L.O. Sanni and O.A. Akinrotimi, 2009. Evaluatoin of biochemical changes associated with replacement of maize with whole cassava root meal in the diet of hybrid catfish. J. Aquac. Feed Sci. Nutr., 1: 68-72.
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  49. Abu, O.M.G., U.U. Gabriel, E.S. Erondu and O.A. Akinrotimi, 2009. Effects of dietary inclusions of whole cassava root meal on the hematology of hybrid catfish. Int. J. Trop. Agric. Food Syst., 3: 245-251.
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  50. Howard, I.C., U.U. Gabriel and M. Horsfall Jnr, 2008. Trace metals in the tissues and shells of Tympanotonus fuscatus var. radula from the mangrove swamps of the bukuma oil field, Niger Delta. Eur. J. Sci. Res., 24: 468-476.
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  51. Gabriel, U.U., R.I. Keremah and I.B. Okey, 2008. Comparative toxicity of dried leaf powder of Lepidagathis alopecuroides (Vahl) to Clarias gariepinus and hybrid (Heterobranchus bidorsalis ♀ × C. gariepinus ♂) fingerlings. Niger. J. Indigenous Knowl. Dev., 1: 47-55.
  52. Gabriel, U.U., R.I. Keremah and I.B. Okey, 2008. Behavioural responses and mortality of Clarias gariepinus exposed to acute levels of Lepidagathis alopecuroides (Vahl). Niger. J. Indigenous Knowledge Dev., 1: 86-94.
  53. Gabriel, U.U., O.A. Akinrotimi and M.C. Onyemuwa, 2008. Effect of feeding rates on the growth and nutrient utilization of Clarias gariepinus (Burchell 1822) fed commercial diets. Anim. Prod. Res. Adv., 4: 127-134.
  54. Gabriel, U.U., M. Inko-Tariah, N. Olu and O.A. Akinrotimi, 2008. Variations of water and soil sediments qualities of Elechi creek, Niger Delta, wetland. Int. J. Trop. Agric. Food Syst., 2: 135-139.
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  55. Onunkwo, D.N., J.Y. Opara, N.K. Owhonda, O.A. Akinrotimi, P.E. Anyanwu, P.T. Cliffe and U.U. Gabriel, 2007. Formulating an environmental friendly fish feed for sustainable aquaculture development in Nigeria. Agric. J., 2: 606-612.
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  56. Obomanu, F.G., O.K. Ogbalu, U.U. Gabriel, S.G.K. Fekarurhobo and S.U. Abadi, 2007. Piscicidal effects of Lepidagathis alopecuroides on mudskipper, Periophthalmus papillio from the Niger delta. Res. J. Applied Sci., 2: 382-387.
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  57. Inko-Tariah, M. B., U.U. Gabriel, M.Y. Mommoh and O.A. Akinrotimi, 2007. Optimum dietary protein requirements for spent female Clarius gariepinus brood stock. Int. J. Trop. Agric. Food Syst., 1: 383-389.
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  58. Gabriel, U.U., P.E. Anyanwu and O.A. Akinrotimi, 2007. Haematological profile of blank chinned tilapia Sarotherodon melanotheron from Buguma Greek, Niger Delta. Agric. J., 2: 384-387.
  59. Gabriel, U.U., P.E. Anyanwu and A.O. Akinrotimi, 2007. Effect of freshwater challenge on the blood characteristics of Sarotherodon melanotheron. Agric. J., 2: 388-391.
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  60. Gabriel, U.U., P.E. Anyanwu and A.O. Akinrotimi, 2007. Comparative effects of different acclimation media on haematological characteristics of brackishwater tilapia, Sarotherodon melanotheron (Rupell, 1852). J. Fish. Int., 2: 195-199.
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  61. Gabriel, U.U., P.E. Anyanwu and A.O. Akinrotimi, 2007. Blood characteristics associated with confinement stress in black chin tilapia Sarotherodon melanotheron. J. Fish. Int., 2: 186-189.
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  62. Gabriel, U.U., O.A. Akinrotimi, P.E. Anyanwu, D.O. Bekibele and.N. Onunkwo, 2007. The role of Dietary Phytase in formulation of least cost and less polluting fish feed for sustainable aquaculture development in Nigeria. Afr. J. Agric. Res. 2: 279-286.
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  63. Gabriel, U.U., O.A. Akinrotimi, D.O. Bekibele, P.E. Anyanwu and D.N. Onunkwo, 2007. Economic benefit and ecological efficiency of integrated fish farming in Nigeria. Sci. Res. Essay, 2: 302-308.
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  64. Gabriel, U.U., O.A. Akinrotimi, D.O. Bekibele, D.N. Onunkwo and P.E. Anyanwu, 2007. Locally produced fish feed: Potentials for aquaculture development in Subsaharan Africa. Afr. J. Agric. Res., 2: 287-295.
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  65. Gabriel, U.U., E.U. Amakiriand and C.N. Ezeri, 2007. Haematology and gill pathology of Clarias gariepinus exposed to refined petroleum oil, kerosene under laboratory conditions. J. Anim. Vet. Adv., 6: 461-465.
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  66. Ezeri, G.N., O.A. Akintunde and U.U. Gabriel, 2007. Comparative efficiency of agricultural waste-based diets on the growth and survival of Oreochromis niloticus fingerling in net hapas. Niger. J. Fish., 4: 145-153.
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  67. Davies, O.A., U.U. Gabriel and T.B. Kingdom, 2007. Trace metals in periwinkle, Tympanotonlis fliscatl var. radlila from Elechi Creek, Upper Bonny Estuary, Nigeria. J. Microbiol. Biotechnol. Environ. Sci., 9: 445-450.
    Direct Link  |  
  68. Anyanwu, P.E., U.U. Gabriel, O.A. Akinrotimi, D.O. Bekibele and D.N. Onunkwo, 2007. Brackish water aquaculture: A veritable tool for the empowerment of Niger Delta communities. Sceint. Res. Essay, 2: 295-301.
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  69. Amakiri, E.U., G.N.O. Ezeri and U.U. Gabriel, 2007. Liver and kidney histopathology: Biomakers of No. 1 Fuel toxicosis in African catfish, Clarias gariepinus. J. Anim. Vet. Adv., 6: 379-384.
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  70. Akinrotimi, A.O., A.O. Anyanwu, P.E. Anyanwu and U.U. Gabriel, 2007. Influence of sex, acclimation methods and period on haematology of Sarotherodon melanotheron (Cichilidae). Res. Biol. Sci., 2: 348-352.
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  71. Akinrotimi, A.O., A.O. Anyanwu, P.E. Anyanwu and U.U. Gabriel, 2007. Effect of salinity changes on haematological parameters of Sarotherodon melanotheron from Buguma Creek, Niger Delta. J. Anim. Vet. Adv., 6: 658-662.
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  72. Obomanu, F.G., O.K. Ogbalu, U.U. Gabriel, G.K. Fekarurhobo and B.I. Adediran, 2006. Larvicidal properties of Lepidagathis alopecuroides and Azadirachta indica on Anopheles gambiae and Culex quinquefasciatus. Afr. J. Biotechnol., 5: 761-765.
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  73. Gabriel, U.U., G.N.O. Ezeri, P.M. Ikeme and E.F. Ikwut, 2006. Haematoxicity of proxone to juvenile Clarias gariepinus (Burchell, 1822) under laboratory conditions. Pollut. Res., 25: 413-417.
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  74. Ezeri, G.N.O., U.U. Gabriel and B.T. Sorroh, 2006. Potency of crude pituitary extract from roundup (glyphosate)-exposed homoplastic donors in induced breeding of Clarias gariepinus (Burch, 1822). J. Ind. Pollut. Control, 22: 9-15.
  75. Bobmanuel, N.O.K., Gabriel, U.U. and I.K.E. Ekweozor, 2006. Direct toxic assessment of treated fertilizer effluents to Oreochromis niloticus, Clarias gariepinus and catfish hybrid (Heterobranchus bidorsalis♂ × Clarias gariepinus♀). Afr. J. Biotechnol., 5: 635-642.
    Direct Link  |  
  76. Gabriel, U.U. and A.D.I. George, 2005. Plasma enzymes in Clarias gariepinus exposed to chronic levels of round up (glyphosate). Environ. Ecol., 23: 271-276.
  77. Gabriel, U.U., G.N.O. Ezeri and O.O. Opabunmi, 2004. Influence of sex, source, health status and acclimation on the haematology of Clarias gariepinus (Burch, 1822). Afr. J. Biotechnol., 3: 463-467.
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  78. Ezeri, G.N.O., U.U. Gabriel and O.O. Opabunmi, 2004. Hematological response of cultured and wild Clarias gariepinus (Burch 1822) to acclimation. Environ. Ecol., 22: 628-632.
  79. Gabriel, U.U. and R.I. Keremah, 2003. Effects of dietaryprotein and energy rations on carcass composition, feed conversion efficiency and condition of Heterobranchus bidorsalis fingerlings (St. Hilaire, 1809). Zoologist, 2: 19-29.
  80. Ezeri, G.N.O., U.U. Gabriel and O.O. Ashade, 2003. Effects of partial shading by water lettuce (Pistia stratiotes) on the growth of tank cultured Oreochromis niloticus. Zoologist, 2: 29-38.
  81. Ezeri, G.N.O., U.U. Gabriel and K.I. Ismail, 2003. Nutritive value of housefly (Musca domestica) larvae in the diet of hybrid (Clarias gariepinus and Heterobronchus bidorsalis) fingerlings. J. Agric. Biotechnol. Environ., 3: 1-5.
  82. Gabriel, U.U. and O.S. Kparobo, 2002. Acute toxicity of cypermethrin (a pyrethroid pesticide) to post-fingerlings of the African mudfish Clarias gariepinus (Burch, 1822). Int. J. Agric. Rural Dev., 3: 144-149.
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  83. Inko-Tariah, M.B., U.U. Gabriel, M.E. Allison and O.A. Davies, 2001. Comparative studies on the yield of Oreochromis aureus in polyculture systems. J. Agric. Biotechnol. Environ., 4: 15-20.
  84. Gabriel, U.U., J.K. Alagoa and M.E. Allison, 2001. Effects of crude oil-water dispersion on haemoglobin and haematocrit of Clarias gariepinus. J. Applied Sci. Environ. Manage., 5: 63-68.
  85. Ekweozor, I.K.E., N.O.K. Bobmanuel and U.U. Gabriel, 2001. Sublethal effects of ammoniacal fertilizer effluents on three commercial fish species from Niger Delta area, Nigeria. J. Applied Sci. Environ. Manage., 5: 9-11.
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  86. Gabriel, U.U., M.B. Inko-Tariah, M.E. Allison and O.A. Davies, 2000. Growth of some Heterobranchus bidorsalis fingerlings fed varying dietary protein and energy rations. J. Agric. Biotechnol. Environ., 2: 35-41.
  87. Allison, M.E., U.U. Gabriel, J.F.N. Abowei and M.B. Inko-Tariah, 1998. Some aspects of the reproductive biology of Cynoglossus canariensis and Cynoglossus goreensis (Steind.) of Qua-Iboe and Cross River systems of South-East Nigeria, Part 2. Niger Delta Biologia, 2: 117-131.
  88. Allison, M.E., U.U. Gabriel, J.F.N. Abowei and M.B. Inko-Tariah, 1998. Some aspects of the reproductive biology of Cynoglossus canariensis (STEIND) and Cynoglossus goreensis (STEIND) of Qua Iboe and Cross Rivers systems off South East Coast, Nigeria, Part 1. Niger Delta Biologia, 2: 104-116.
  89. Allison, M.E., U.U. Gabriel, M.B. Inko-Tariah, O.A. Davies and B. Udeme-Naa, 1997. The fish assemblage of Elechi Creek, Rivers State, Nigeria. Niger Delta Biologia, 2: 53-61.