Gladys Chioma Nzeh

@unilorin.edu.ng

Professor, Faculty of Life Sciences
University of Ilorin, Ilorin, Nigeria



                    

https://researchid.co/om4a6_gs2

Professor Gladys Chioma Nzeh attended University of Lagos for her undergraduate education and graduated with a B.Sc. (Hons) Zoology, Second class upper division. She proceeded to the University of Ibadan , Nigeria for her postgraduate studies and obtained her Ph.D. specialising in Hydrobiology and fisheries. She is currently an employee of the University of Ilorin, Nigeria in the Faculty of Life Sciences, Department of Zoology. She has been acting Head of Department, Acting Director of Students Industrial Work Experience Scheme(SIWES) and Chairman, University of Ilorin Zoological Garden. Her research area is Fisheries and Aquaculture. Currently in fisheries she is investigating the effect of water quality on fish abundance and distribution in lakes while in aquaculture, she is using single cell protein produced from agricultural waste to partially replace fishmeal in the diet of cultured fish and the bacterial load of the experimental water is also studied.

EDUCATION

Undergraduate education: University of Lagos, Nigeria.
Postgraduate education: University of Ibadan, Nigeria.

RESEARCH, TEACHING, or OTHER INTERESTS

Animal Science and Zoology, Agricultural and Biological Sciences, Aquatic Science, Pollution

FUTURE PROJECTS

Effects of water quality on a lake

Water quality parameters measured in a lake were Temperature, pH, Total Dissolved Solids, Electrical Conductivity (μS/cm) were measured in situ using Hanna digital electronic meter. Transparency was also measured on site using a Secchi disc device. Dissolved oxygen, Calcium and Magnesium hardness, phosphate, Nitrate concentrations were determined using standard methods (APHA 1995). The results showed that water quality parameters were within tolerable limits for the habitation of fish species according to WHO standards.


Applications Invited
Collaborators

Single cell protein production from agricultural waste

Fish meal is the most expensive ingredient in fish feed formulation, this study investigated the effect of single cell protein production from Citrus sinensis peel and Citrus sinensis pulp used to replace fishmeal on the growth performance of Clarias gariepinus hybrid juveniles and microflora of fish water. Air dried and ground samples of C. sinensis peel and C. sinensis pulp were subjected to fermentation, filtration, purification, washing, followed by drying using appropriate microorganisms to produce single cell protein (SCP). The SCP produced from these agricultural waste products were incorporated into the feed and three diets were formulated using the different SCP while the control diet contained fish meal.The feeding trial lasted for eight weeks. The increase in weight, specific growth rate (SGR), feed conversion ratio (FCR), protein efficiency ratio (PER) was calculated. The result showed that single cell protein promoted growth.


Applications Invited
Collaborators

Bacterial load of fish experimental water

The isolates were characterized by cellular morphology and Gram staining. Molecular methods using DNA extraction, PCR, gel electrophoresis, sequencing, and BLAST were carried out at International Institute of Tropical Agriculture (IITA), Ibadan, Nigeria. The bacterial isolates were identified as Bacillus cereus, Klebsiella pneumoniae, Enterobacter aerogenes, and Lysinibacillus spaheriicus and the bacterial flora conferred some protection to the fish


Applications Invited
Collaborators
5

Scopus Publications

273

Scholar Citations

9

Scholar h-index

9

Scholar i10-index

Scopus Publications

  • DNA barcoding of economically important freshwater fish species from north-central Nigeria uncovers cryptic diversity
    Oluyinka A. Iyiola, Lotanna M. Nneji, Moshood K. Mustapha, Chioma G. Nzeh, Segun O. Oladipo, Ifeanyi C. Nneji, Agboola O. Okeyoyin, Christopher D. Nwani, Obih A. Ugwumba, Adiaha A. A. Ugwumba,et al.

    Wiley
    Abstract This study examines the utility of morphology and DNA barcoding in species identification of freshwater fishes from north‐central Nigeria. We compared molecular data (mitochondrial cytochrome c oxidase subunit I (COI) sequences) of 136 de novo samples from 53 morphologically identified species alongside others in GenBank and BOLD databases. Using DNA sequence similarity‐based (≥97% cutoff) identification technique, 50 (94.30%) and 24 (45.30%) species were identified to species level using GenBank and BOLD databases, respectively. Furthermore, we identified cases of taxonomic problems in 26 (49.00%) morphologically identified species. There were also four (7.10%) cases of mismatch in DNA barcoding in which our query sequence in GenBank and BOLD showed a sequence match with different species names. Using DNA barcode reference data, we also identified four unknown fish samples collected from fishermen to species level. Our Neighbor‐joining (NJ) tree analysis recovers several intraspecific species clusters with strong bootstrap support (≥95%). Analysis uncovers two well‐supported lineages within Schilbe intermedius. The Bayesian phylogenetic analyses of Nigerian S. intermedius with others from GenBank recover four lineages. Evidence of genetic structuring is consistent with geographic regions of sub‐Saharan Africa. Thus, cryptic lineage diversity may illustrate species’ adaptive responses to local environmental conditions. Finally, our study underscores the importance of incorporating morphology and DNA barcoding in species identification. Although developing a complete DNA barcode reference library for Nigerian ichthyofauna will facilitate species identification and diversity studies, taxonomic revisions of DNA sequences submitted in databases alongside voucher specimens are necessary for a reliable taxonomic and diversity inventory.

  • Constraints to fish farming among women in Nigeria


  • Control of reproduction in Oreochromis niloticus (L) using crude extract of Azadirachta indica saponin


  • Growth response of juveniles of Clarias bidorsalis to imported floating feed and cost implication in Ilorin, Kwara state, Nigeria


  • Lipid composition of the fishes Heterotis niloticus, Brycenus nurse, Gnathonemus cyprinoides and Sarotherodon galilaeus from a small lake in Nigeria


RECENT SCHOLAR PUBLICATIONS

  • Problems and prospects of fish farming in Kwara State, Nigeria
    CG Achionye-Nzeh, AO Ajayi
    African Scientist 4 (4) 2021

  • Growth response of Clarias anguillaris fingerlings fed larvae of Musca domestica and soyabean diet in the laboratory
    CG Achionye-Nzeh, OS Ngwudo
    Bioscience Research Journal 15 (3) 2021

  • DNA barcoding of economically important freshwater fish species from north‐central Nigeria uncovers cryptic diversity
    OA Iyiola, LM Nneji, MK Mustapha, CG Nzeh, SO Oladipo, IC Nneji, ...
    Ecology and evolution 8 (14), 6932-6951 2018

  • Karyotypic analysis of Labeo coubie (Ruppell, 1832)(African carp) from University of Ilorin Dam, Ilorin, Nigeria
    OJ Ademola, OO Ogunbanjo, TF Olafimihan, GC Nzeh
    Animal Research International 14 (2), 2710–2714-2710–2714 2017

  • Histological changes in gonads and liver of Oreochromis niloticus (L.) fed crude extract of Azadirachta indica leaf
    IO Obaroh, GC Nzeh
    International Journal of Biochemistry Research & Review 4 (5), 420 2014

  • Growth response of Oreochromis niloticus (L) fed crude extract of Azadirachta indica saponins
    I Obaroh, G Nzeh, S Oguntoye, D Bawa
    IOSR J Pharm Biol Sci 3, 44-8 2014

  • Antifertility effect of some plant leaf extracts on the prolific breeding of Oreochromis niloticus
    IO Obaroh, GC Nzeh
    Academic Journal of Interdisciplinary Studies 2 (12), 87 2013

  • Dwindling Fish Stocks: Aquaculture and Sustainable Food Security
    CG Nzeh
    Library and Publications Committee, University of Ilorin 2013

  • Control of reproduction in Oreochromis niloticus (L) using crude extract of Azadirachta indica saponin
    IO Obaroh, GC Nzeh, SO Oguntoye
    Advances in Environmental Biology 6 (4), 1353-1356 2012

  • Constraints to fish farming among women in Nigeria
    CG Nzeh, Z Adebayo
    Advances in Environmental Biology, 1421-1426 2012

  • Mineral composition of some marine and freshwater fishes.
    CG Achionye-Nzeh, OM Adedoyin, S Oyebanji, MO Mohammed
    2012

  • Role of Ultrasound in Evaluation of the Presence of Ovaries in Oreochromis niloticus (L)
    GC Nzeh, K Makinde, K Jimoh, IO Obaro
    World 4 (5), 436-438 2012

  • Condition factor, Gonadosomatic index and Sex ratio of the Family Mormyridae from a small Lake in Ilorin, Nigeria
    CG Nzeh, A Lawal
    World Journal of Zoology 7 (2), 102-105 2012

  • Ovaprim doses effects on eggs of African mudfish Clarias gariepinus
    CG Achionye-Nzeh, I Obaroh
    International Journal of Life Science and Pharma Research 2 (2), 6-9 2012

  • Effects of Artemia nauplii and formulated diet on growth and survival of larvae and post larvae of Clarias gariepinus (L).
    CG Achionye-Nzeh, K Olumuji, N Bello
    International Journal of Life science & Pharma Research 2 (2) 2012

  • Microbial survey of fish ponds and mineral composition of Clarias gariepinus in Ilorin metropolis
    CG Nzeh, AO Udeze
    International Journal of Biological and Chemical Sciences 6 (2), 832-837 2012

  • Lactobacillus delbruekii infection of Clarias bidorsalis cultured in fish tanks in Ilorin, Kwara state-Nigeria
    CG Nzeh, AO Udeze
    Agriculture and Biology Journal of North America 2 (2), 188-191 2011

  • Reproductive strategies of the Cichlids in a small reservoir in Ilorin, Nigeria
    CG Achionye-Nzeh
    International Journal of Biological and Chemical Sciences 5 (4), 1688-1693 2011

  • Growth response of juveniles of Clarias bidorsalis to imported floating feed and cost implication in Ilorin, Kwara State, Nigeria
    CG Achionye-Nzeh
    African Journal of Biotechnology 9 (31), 5022-5024 2010

  • Some biological aspects of Brycenus nurse, Hydrocynus forskali, Micralestes acutidens (Characidae) and Labeo coubie (Cyprinidae) from a reservoir in Ilorin, Nigeria
    C Achionye-Nzeh
    International Journal of Biological and Chemical Sciences 4 (2) 2010

MOST CITED SCHOLAR PUBLICATIONS

  • DNA barcoding of economically important freshwater fish species from north‐central Nigeria uncovers cryptic diversity
    OA Iyiola, LM Nneji, MK Mustapha, CG Nzeh, SO Oladipo, IC Nneji, ...
    Ecology and evolution 8 (14), 6932-6951 2018
    Citations: 51

  • Fauna and flora composition and water quality of a reservoir in Ilorin, Nigeria
    CG Achionye-Nzeh, A Isimaikaiye
    International Journal of Lakes and Rivers 3 (1), 7-15 2010
    Citations: 30

  • Antifertility effect of some plant leaf extracts on the prolific breeding of Oreochromis niloticus
    IO Obaroh, GC Nzeh
    Academic Journal of Interdisciplinary Studies 2 (12), 87 2013
    Citations: 24

  • Ovaprim doses effects on eggs of African mudfish Clarias gariepinus
    CG Achionye-Nzeh, I Obaroh
    International Journal of Life Science and Pharma Research 2 (2), 6-9 2012
    Citations: 20

  • Growth response of Clarias anguillaris fingerlings fed larvae of Musca domestica and soyabean diet in the laboratory
    CG Achionye-Nzeh, OS Ngwudo
    Bioscience Research Journal 15 (3) 2021
    Citations: 19

  • Control of reproduction in Oreochromis niloticus (L) using crude extract of Azadirachta indica saponin
    IO Obaroh, GC Nzeh, SO Oguntoye
    Advances in Environmental Biology 6 (4), 1353-1356 2012
    Citations: 14

  • Mineral composition of some marine and freshwater fishes.
    CG Achionye-Nzeh, OM Adedoyin, S Oyebanji, MO Mohammed
    2012
    Citations: 14

  • Lipid composition of the fishes Heterotis niloticus, Brycenus nurse, Gnathonemus cyprinoides and Sarotherodon galilaeus from a small lake in Nigeria
    CG Achionye-Nzeh, OG Omoniyi
    Revista de biologia tropical 50 (1), 253-257 2002
    Citations: 11

  • Effects of Artemia nauplii and formulated diet on growth and survival of larvae and post larvae of Clarias gariepinus (L).
    CG Achionye-Nzeh, K Olumuji, N Bello
    International Journal of Life science & Pharma Research 2 (2) 2012
    Citations: 10

  • Condition factor, Gonadosomatic index and Sex ratio of the Family Mormyridae from a small Lake in Ilorin, Nigeria
    CG Nzeh, A Lawal
    World Journal of Zoology 7 (2), 102-105 2012
    Citations: 8

  • Histological changes in gonads and liver of Oreochromis niloticus (L.) fed crude extract of Azadirachta indica leaf
    IO Obaroh, GC Nzeh
    International Journal of Biochemistry Research & Review 4 (5), 420 2014
    Citations: 7

  • Constraints to fish farming among women in Nigeria
    CG Nzeh, Z Adebayo
    Advances in Environmental Biology, 1421-1426 2012
    Citations: 7

  • Microbial survey of fish ponds and mineral composition of Clarias gariepinus in Ilorin metropolis
    CG Nzeh, AO Udeze
    International Journal of Biological and Chemical Sciences 6 (2), 832-837 2012
    Citations: 7

  • Ultrasound evaluation of the gonads in catfish clarias gariepinus (Teugels): An Initial Experience in Africa
    CG Achionye-Nzeh, KO Jimoh
    World Journal of Fish and Marine Sciences 2 (4) 2010
    Citations: 7

  • Lipase activity in the liver and digestive tract of some cichlids (pisces: Cichlidea)
    CG Achionye-Nzeh, I Obaroh, V Adeniyi
    African Journal of Applied Zoology and Environmental Biology 7, 136-139 2005
    Citations: 6

  • Growth response of Oreochromis niloticus (L) fed crude extract of Azadirachta indica saponins
    I Obaroh, G Nzeh, S Oguntoye, D Bawa
    IOSR J Pharm Biol Sci 3, 44-8 2014
    Citations: 5

  • Reproductive strategies of the Cichlids in a small reservoir in Ilorin, Nigeria
    CG Achionye-Nzeh
    International Journal of Biological and Chemical Sciences 5 (4), 1688-1693 2011
    Citations: 5

  • Some biological aspects of Brycenus nurse, Hydrocynus forskali, Micralestes acutidens (Characidae) and Labeo coubie (Cyprinidae) from a reservoir in Ilorin, Nigeria
    C Achionye-Nzeh
    International Journal of Biological and Chemical Sciences 4 (2) 2010
    Citations: 4

  • Lactobacillus delbruekii infection of Clarias bidorsalis cultured in fish tanks in Ilorin, Kwara state-Nigeria
    CG Nzeh, AO Udeze
    Agriculture and Biology Journal of North America 2 (2), 188-191 2011
    Citations: 3

  • Growth response of juveniles of Clarias anguilaris to Diet formulated Ciriuna forda with in laboratory
    CG Achionye-Nzeh, O Qgidiolu, S Salami
    Nig. J. Pure Appl. Sci 17, 1253-1256 2002
    Citations: 3