Dr. Yisa Abraham Gana has extensive experience in academia and research, specializing in hydrobiology and aquatic toxicology. As a Lecturer I at the National Open University of Nigeria, he teaches courses in fisheries, aquaculture, and chordates, and has supervised undergraduate research projects. His research focuses on the ecological impacts of contaminants, with significant publications on pharmaceuticals and heavy metals in aquatic ecosystems. Dr. Yisa has served in various administrative roles, including Acting Head of Department, and participated in national conferences as a presenter. Proficient in data analysis and visualization, he is skilled in R, SPSS, and experimental design.

1. Yisa, A.G., Oziamo, A.S., Chukwu, M. N., Aletan, U.I., Oniye, S.J., Adams, A.E., A, Osegbo, Saliu, O.A, Edogbo, B., Omada, S., Ayodeji., I, O, Sekegor, C.O (2024): Health Risk Assessment of Lead and Cadmium in Roadside Roasted Corn in Selected Areas of Bwari Local Government Area, FCT, Nigeria. Umaru Musa Yaradua Journal of Microbiology.
2. Yisa, A.G., Chia, M.A., Gadzama, I.M.K., Oniye, S.J., Sha’aba, R.I., Gauji, B. (2023). Immobilization, oxidative stress and antioxidant response of Daphnia magna to Amoxicillin and Ciprofloxacin. Environmental Toxicology and Pharmacology, 98, 104078.
3. Yisa, A.G., Chia, M.A., Gadzama, I.M.K., Oniye, S.J., Sha’aba, R.I., Gauji, B. (2023). Risk assessment of the antibiotic Amoxicillin on non-toxin-producing strains and toxin-producing strains of Microcystis. Environmental Science and Pollution Research, 1-12.
4. Yisa, A.G., Chia, M.A., Sha’aba, R.I., Gauji, B., Gadzama, I.M.K., Oniye, S.J. (2021). The antibiotic ciprofloxacin alters the growth, biochemical composition, and antioxidant response of toxin-producing and non-toxin-producing strains of Microcystis. Journal of Applied Phycology. 1–11.
5. Yisa, A.G. Gadzama, I.M.K. Oniye, S.J. Alhassan, A.B. and Babatunde, M.M. (2018). Physicochemical Parameters in relation to benthic macroinvertebrate assemblage of Adeyemo Stream (River Omo) in Kaduna, Nigeria: Journal of Tropical Biosciences.12: 52-61.
6. Yisa, A.G., Gadzama, I.M.K., Oniye S.J. and Babatunde, M.M. (2017). Temporal and Spatial Variation in Physicochemical Variation of Adeyemo Stream, Kaduna, Nigeria. International Journal of Fisheries and Aquatic Studies. 5, 3-42.
7. Saliu, O.A, Yisa, A.G., Saliu, N.B., Ayodeji., I, O, Ogbu, E.B (2024). Heavy Metals and Bacteria Contamination in Drinking Water: The Wassa IDP Camp Case Study, Abuja, Federal Capital Territory, Nigeria. Federal University Wukari Trends in Science and Technology. Vol 9(1).

8. Yisa, A.G., Gadzama, I.M.K. and Oniye, S.J. (2016). Abundance and diversity of macrobenthic invertebrates of an urbanized stream, Kaduna Nigeria. Proceedings of the School of Postgraduate studies. 1(1): 889-893.
9. Gadzama, I.M.K., Yisa, A.G. and Thliza, I. A. (2014). Heavy metal concentrations in whole soft tissues of Anodonta implicata (class: Bivalvia) from Makera industrial discharge point of Kaduna River, Nigeria. The Zoologist, 12: 16-22.
10. Sha’aba, R. I., Chia, M. A., Yisa, A.G., Alhassan, A. B., & Gadzama, I. M. K. (2022). The growth, biochemical composition, and antioxidant response of Microcystis and Chlorella are influenced by Ibuprofen. Environmental Science and Pollution Research, 1-14.

11. A.E. Esson, M.I. Adebola and Yisa, A.G (2018). Frequency of mutation, lethality and efficiency of ethyl methane Sulphonate and sodium azide on foxtail millet (Setaria italica). Journal of Scientific Agriculture. 2: 9-13.
12. Musa A.O., Sow, G.J and Yisa, A.G. (2016). Toxicological effects of the extracts of the plant, Calotropis procera (Asclepiadaceae) on the larvae of the mosquito, Aedes (Stegomyia) vittatus (Bigot). Journal of Tropical Biosciences, 11:62-68.
13. Chia, M. A., Auta, Z. Z., Esson, A. E., Yisa, A. G. & Abolude, D. S. (2019). Assessment of microcystin contamination of Amaranthus hybridus, Brassica oleracea, and Lactuca sativa sold in markets: a case study of Zaria, Nigeria. Environmental Monitoring and Assessment, 191(9). doi:10.1007/s10661
14. R, Yerima, I.M.K., Gadzama, J, Simon, B.Y, Tanko, and A.G, Yisa. (2018). Growth and bone calcium content of Clarias gariepinus fingerlings fed diet enriched with Egeria radiatia (class: bivalvia) shells. Trends in Science and Technology Journal.
15. Chia, M.A., Ameh, I., Agee, J.T., Otogo, R.A., Shaba, A.F., Bashir, H., Umar, F., Yisa, A.G., Uyovbisere, E.E., Sha’aba, R.I., (2021). Effects of the antimalarial lumefantrine on Lemna minor, Raphidocelis subcapitata and Chlorella Vulgaris. Environmental Toxicology and Pharmacology. 85, 103635.

Hydrobiology and aquatic toxicology
Ecological impacts of pharmaceuticals on aquatic ecosystems
Risk assessment of environmental contaminants, including heavy metals
Oxidative stress and antioxidant responses in aquatic organisms
Ecotoxicology of plankton, macrobenthic invertebrates, and other aquatic life forms
Environmental monitoring and pollution management
Biodiversity and ecosystem health in freshwater systems
Assessment of heavy metals and pollutants in food chains
Impacts of industrial and agricultural effluents on water quality and aquatic biota
Climate change effects on aquatic ecosystems and species adaptation.

https://orcid.org/0000-0002-9936-5418

1. Hydrological Surveillance of Jabi Lake: Understanding Water Quality Dynamics and Implications for Sustainable Management: 5 Million Naira. Senate Research Grant of the National Open University of Nigeria.

2. Eco-vigilance of Emerging Contaminants in Relation to Phytoplankton and Zooplankton Distribution in River Chanchaga: Preserving Nigerian Freshwaters. 2.5 Million Naira. Senate Research Grant of the National Open University of Nigeria.