Popoola, Michael Olaoluwa

Zoology Department, OAU > Instructors > Our Lecturer > Popoola, Michael Olaoluwa

Popoola, Michael Olaoluwa

Senior Lecturer
Ph.D

Publications

  1. Thesis/Dissertation
    1. Popoola, M.O. (2001): Distribution and abundance of large mammals in Marguba range of Old Oyo National Park, Sc. Dissertation, University of Ilorin, Ilorin, Nigeria. 45pp.
    2. Popoola, M.O. (2006) Comparative Studies of the genomes of Clarias gariepinus, Heterobranchus bidorsalis and their hybrid using hydroxyapatite column chromatography, Sc. Thesis, Obafemi Awolowo University, Ile-Ife, Nigeria. 52 pp.
    3. Popoola, M.O. (2012) Phylogenetic Studies in Three Populations of Three Species of Cichlid Fishes Tilapia zillii (Gervais), Oreochromis niloticus and Sarotherodon galilaeus Linn. in Three Selected Reservoirs in Osun state, Nigeria. 100pp.

Books and Monographs:

               Authored :Nil

               Edited : Nil

Contribution to Books: Nil

4. Published Journal Articles

    1. Popoola, M.O., Olaleye, V.F. and Awodiran, M.O. (2008): Comparative studies of the genomes of Clarias gariepinus, Heterobranchus bidorsalis and their hybrid using hydroxyapatite column chromatography. Ife Journal of Science. 10(1): 77-83. (NIGERIA)
    2. Agbebi, O.T., Salami, H.O., Ogundiwin, D.I., and Popoola, M.O. (2008): Comparative studies of diploid and triploid Heterobranchus bidorsalis (Geoffroy St. Hilaire, 1809) using polyacrylamide gel electrophoresis. The Nigerian Journal of  Forestry. 38(1&2): 118-124. (NIGERIA)
    3. Okonji, R.E., Popoola, M.O., Kuku, A. and Aladesanmi, T.O. (2010): The distribution of cyanide detoxifying enzymes (rhodanese and 3-Mercaptopyruvate sulphurtransferase (3-MST)) in different species of Tilapia – Tilapia zillii,  Sarotherodon galilaeus, Oreochromis niloticus. African Journal of Biochemical Research (AJBR.)  4(6):163-166. (KENYA)
    4. Okonji, R.E., Popoola, M.O., Komolafe, O.O., and Kuku, A. (2011) : The distribution of  arginase in different species  of Tilapia – Tilapia zillii, Sarotherodon galilaeus Oreochromis niloticus. West African Journal of Applied Ecology. 18: 47-52. (KENYA)
    5. *Okonji, R. E., Komolafe, O. O., Ehigie, L. O., Popoola, M. O. and Bamitale, K. S. (2013) : Thiaminase properties in the fillet and liver of Tilapia zillii from Osinmo Reservoir: A comparative study. African Journal of Food Science. 7(6): 143-149. (KENYA)
    6. *Okonji, R. E., Komolafe, O. O.,  Popoola, M. O.  and A. Kuku (2013) : Effects of seasonal change in Osinmo reservoir on arginase and rhodanese activities in Clarias gariepinus Burchell and Heterotis niloticus Cuvier. African Journal of Agricultural Research. 8(20) : 2353-2359. (KENYA)
    7. *Usman, B. A., Agbebi, O. T., Bankole, M. O. Oguntade, O. R. and Popoola, M. O. (2013) Molecular characterisation of two cichlids populations (Tilapia guineensis and Sarotherodon melanotheron) from different water bodies in Lagos State, Nigeria International Journal for Biotechnology and Molecular Biology Research. 4(5) 71-77. (KENYA)
    8. *Popoola M. O., Akintoye, M. A. and Akintoye F. M. (2018) Karyotype analysis of a Sarotherodon cf. galilaeus fish, Wesafu and two conspecifics, Sarotherodon melanotheron melanotheron Ruppel and Sarotherondon galilaeus galilaeus (Linnaeus) Nature and Science Journal 16(7). (USA)
    9. *Popoola M. O. and Irewole E. A. (2018) Chromosomal Study of two Cyprinid fishes of the genus Barbus; Barbus callipterus Boulenger 1907 and Barbus parablabes Daget 1957. Nature and Science Journal. 6(12):101-107. (USA)

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* = Paper published after last promotion

  1. Edited and Refereed Conference Proceedings
  2. Articles Accepted for Publication
    1. *Popoola, M.O., Schedel, F.D.B. and Akintoye, M.A. Morphological differentiation among populations of Sarotherodon melanotheron melanotheron Rüppell 1852 across the West African lagoon systems (Benin, Cameroon, Nigeria, Togo). African Journal of Aquatic Science. (SOUTH AFRICA)
    2. *Popoola, M.O. Karyological Studies of Garra trewavasae Monod 1950 from Jos Plateau, Nigeria. (NIGERIA)

 

  1. Manuscript Submitted for Publication
    1. Popoola, M.O., Aduwo A. and Adesakin, T. A. Water Quality Changes and The Effects On The Morphometry Of Fishes In Selected Reservoirs In Osun State. Ife Journal of Science.
  2. Creative Work: Nil
  3. Technical report: Nil
  4. Papers and Work In Progress
    1. First DNA barcode library for the ichthyofaunal diversity of the Jos-Plateau (Nigeria) with comments on the potential existence of undescribed fish species
    2. Description of a new Barbus species from the Jos plateau, Nigeria.

 

Professional Accomplishment

During the period of my research undertaking, I have been able to discover two fish species that are new to science. I have also reported the karyotypes of three cyprinid species for the first time.

 

Conference, Seminars and Workshops Attended with Dates

    1. First Faculty of Science Conference. Obafemi Awolowo University, Ile-Ife, Nigeria, July 3-4, 2007.

Presented Paper

Comparative Studies of the genomes of Clarias gariepinus, Heterobranchus bidorsalis     

and their hybrid using hydroxyapatite column chromatography.

  1. Govan Mbeki Research and Development Center grant proposal writing workshop, CLEA Board room, Stewart Hall, University of Fort Hare, South Africa. September 2010.
  2. Govan Mbeki Research and Development Center converting dissertation/thesis into scientific/academic papers workshop, CLEA Board room, Stewart Hall University of Fort Hare, South Africa. September 2010.
  3. Govan Mbeki Research and Development Center workshop on research and budget planning challenges, CLEA Board room, Stewart Hall University of Fort Hare, South Africa. September 2010.
  4. Govan Mbeki Research and Development Center, Postgraduate thesis training workshop CLEA Board room, Stewart Hall, University of Fort Hare, South Africa. October 2010.
  5. National Research Foundation Sponsored Writing for Publication Workshop, Hunterstoun Center, Hogsback, University of Fort Hare. November 2010.
  6. Advanced Phylogenetic Analysis Workshop, FABI, University of Pretoria, South Africa, November, 2010.
  7. West African Society Of Toxicology (WASOT) 2nd Annual Conference , Portharcourt, Nigeria, 20th- 23rd, February 2013.

Presented Paper

Effects of Seasonal Change in Osinmo Reservoir on Arginase and Rhodanese Activities in Clarias gariepinus Burchell and Heterotis niloticus Cuvier

Fifth International Conference of the Pan African Fish and Fisheries Association (PAFFA5) 16-20th, September, 2013

Presented paper

A Preliminary Phylogenetic Studies of Populations of Tilapia zillii Gervais, Oreochromis niloticus Linn. and Sarotherodon galilaeus Linn. in Three Selected Reservoirs in Osun State, Nigeria.

 

Current Research Activities

    1. Molecular cytogenetic studies in Oreochromis aureus, Sarotherodon galilaeus galilaeus and Sarotherodon cf. Wesafu
    2. Molecular cytogenetic characterisation of selected endemic cyprinid species in Nigeria.

 

Current Relevant Information

Services Within the Department

    1. Member of Disciplinary and Internal Relation Committee

Services Within the Faculty

    1. Member of Faculty Board of Science
    2. Member of faculty Board of Studies
    3. Member of Faculty Conference Committee
    4. Member of Faculty Conference Lecture
    5. Member of faculty Consultancy Committee

Services Within the University

    1. Member Obafemi Awolowo Strategic Plan Committee

Services Outside the Obafemi Awolowo University

Contribution to Knowledge

My research efforts are focused on assessing status and changes in the diversity of fishes as a measure of natural changes in environmental variables and/or anthropogenic activities. This is with a view to obtain valuable data on original and altered biodiversity that will be useful in taking appropriate decision to protect the environment and ultimately maintain ecosystem health.  The first paper showed, through the elution pattern of DNA, that the genome of Heteroclarias is intermediate between those of Heterobranchus bidorsalis and Clarias gariepinus but tilted towards those of Clarias DNA pattern. The elution pattern of the Clarias gariepinus also showed the presence of a low melting (AT rich) region. The second paper reveals low genetic variability of the species assessed. The third paper records no significant difference in the activity of rhodanese in the tissues of the tilapia species from Aiba River, Iwo, Osun State. Mercaptopyruvate sulphurtransferase (3-MST) presented a different pattern of distribution with significant difference in the gut of the Tilapia species.  The fourth paper reports that the tissues of S. galilaeus showed very high activity of arginase as compared with the tissues of Tilapia zillii and Oreochromis niloticus. The liver of O. niloticus and the gut of T. zillii showed very high activity of arginase in the Osinmo reservoir, Ejigbo, Osun State. The high arginase activity observed in the tissues of these fishes is attributed to ureotelism and is similar to the result obtained for, Alcolapia grahami, from lake Magadi, Kenya. The fifth paper compared the properties of thiaminase in the fillet and liver of Tilapia zillii from Osinmo Reservoir as a measure of environmental impact on the population of the fish. The sixth paper investigated the activity of rhodanese and arginase in in Clarias gariepinus Burchell and Heterotis niloticus Cuvier in relation to seasonal in Osinmo reservoir on arginase and rhodanese.The eight paper presented the karyotype of a Sarotherodon cf. galilaeus fish for the first time. The ninth paper reports the karyotype of Barbus callipterus and Barbus parablabes. Both species have a diploid chromosome number of 50 but different karyotype formula. The tenth paper assessed the level of morphological differentiation of population of S. melanotheron melanotheron across its natural range. The population of S. m. melanotheron from Apese lagoon was found to show subtle differentiation from some of the other lagoons. However, the pattern of variation did not reflect the level of geographical barrier or distances among the population. The eleventh paper was a karyological study of Garra trewavasae. A diploid chromosome number of 50 was reported for the fish.