Open Day

Dr. Paul Orina

Dr. Paul Orina

Paul Sagwe Orina a freshwater aquaculture research scientist in KMFRI doubles as the freshwater systems Assistant Director and the Center Director Kegati Aquaculture Research Center. He is the national chairman of the Technologies Assessment Technical Team (TATT) under the Agriculture Sector Development Support Program (ASDSP) focusing on Agriculture Value Chains for commercialization and the country scientific technical member of the Kenyan aquaculture team on Technologies for African Agriculture Transformation (TAAT) a WorldFish project. Dr Orina has 6 years experience in freshwater fisheries having worked in Lakes Turkana and Naivasha and 9 years freshwater aquaculture experience. He has vast knowledge on fish breeding and culture systems with a major focus on indigenous commercially important fish species. He headed the inception of private investment of Nile tilapia and African catfish hatcheries in Kenya (2010-2016) resulting in the rise from less than 30 to over 100. He is the head of the tilapia breeding program in Kenya initiated in 2012 and currently at the F8 generation. Dr Orina has been a team member of various locally and internationally funded aquaculture and agriculture projects including the Kenya Agricultural Productivity and Agribusiness Program (KAPAP), Association for Strengthening Agricultural Research in Eastern and Central Africa (ASARECA), Strengthening Institutional Capacity for Participatory Action Research in Aquaculture (USAID-PEER), National Research Fund (NRF), National Council of Science and Technology (NACOST). He is currently engaged in three the global programs; BBSRC fund in collaboration with India and the UK, Technologies for African Agriculture Transformation (TAAT) a WorldFish (Malysia) funded project in partnership with African Development Bank (AfDB) and St John York University Seed Fund for Climate Smart Aquaculture Technologies in Africa. Locally, Dr Orina is the KMFRI lead partner in the National Research Fund on Mycrocystins in Lake Victoria in collaboration with Maseno, Masinde Muliro and Moi Universities in Kenya. He has vast mentorship record having been a zoology and aquaculture facilitator at Karatina University and now Kisii University since 2012. He is also a facilitator in the Fisheries and Aquaculture MSc. Module for the International MSc. Program in Limnology & Wetland Ecosystems offered by Egerton University (Kenya) and University of Natural Resources and Applied Life Sciences (Austria) under the support of UNESCO-IHE DELFT. Dr Orina has successfully supervised 1 PhD student and 2 MSc students from Moi and Egerton Universities in Kenya. He is currently supervising 3 MSc students all from Kisii University.

Research Networks: ResearchGate


LinkedIn: › orina-paul-6a849122 › paul-orina-190b4050

Willey Online Library:


KMFRI Kegati Aquaculture Centre
Freshwater Fish Breeding and Culture Systems
Fish Breeding and Culture Systems Management

2010 - 2015: DPhil Zoology (Animal Ecology) University of Eldoret, Kenya.

2006-2009: MPhil Zoology (Animal Ecology), Moi University, Kenya.

1999-12004: BSc. Zoology, University of Eastern Africa Baraton, Kenya

  1. Orina PS., Charo-Karisa H, Munguti JM, Boera P., Abwao J., Kyule D., Opiyo MA., Marcial H., Manyala J and Rasowo JO (2018). A comparative study of Labeo victorianus (Bouelenger, 1901) and Oreochromis niloticus (Linnaeus, 1758) grown in polyculture systems. Lakes & Reservoirs Research & Management 2018; 00:1–7.
  2. Nyonje BM, Opiyo M A., Orina PS., Abwao J., Wainaina M and Charo-Karisa H (2018). Current status of freshwater fish hatcheries, broodstock management and fingerling production in the Kenya aquaculture sector. Livestock Research for Rural Development. Volume 30, Article #6.
  3. Ogada EO., Orina PS and Ogendi GO (2018). Effect of stocking density and diet on the performance of Jipe tilapia (Oreochromis jipe) cultured in hapas at Sagana, Kenya. International Journal of Advanced Research. 6(10): 296-308. DOI: 10.21474/IJAR01/7811 
  4. Opiyo MA., Charo-Karisa H., Nyonje B., Omollo B., Orina PS., Wainaina P., Obiro K and Munguti JM (2017). Good Aqauculture Practises for Seed Production in Kenya. Vol 1. 50 p. ISBN: 978-9966-100-07-8.
  5. Kyule_Muendo D., Munguti JM., Opiyo MA., Obiero KO., Githukia CM., Orina PS., Njiru JM and Charo-Karisa H (2017). Fish Recipe Book. 45 p. ISBN: 978-9966-103-63-6.
  6. Opiyo MA.., Orina PS and Charo-Karisa H (2017). Fecundity, growth parameters and survival rate of three African catfish (Clarias gariepinus) strains under hatchery conditions. Journal of Aquaculture Engineering and Fisheries Research E-ISSN 2149-0236, DOI: 10.3153/JAEFR170.
  7. Nyachae M., Muya SM., Ogila K and Orina PS (2017). Effect of stocking density and diet on growth and survival of Labeo victorianus fish. International Journal of Agriculture and Environmental Research. 3(1): 2225-2241.
  8. Kwikiriza G., Tibihika PD., Barekye A., Beingana A and Orina PS (2016). Performance of African Catfish Clarias gariepinus (Clarridae) fry fed on live rotifers (Brachionus calyciflorus), formulated diet and a mixture of rotifers and formulated diet. International Journal of Fisheries and Aquatic Sciences. 4(6): 11-15
  9. Nyonje BM., Opiyo MA., Orina PS., Abwao J., Wainaina M. and Charo-Karisa, H (2016). Status of Hatcheries, Broodstock and Fingerling Production in Kenya. Bulletin of Animal Health and Production in Africa.
  10. Maranga B., Liti D., Matola G., Orina P (2016). Evaluation of the efficiency of wastewater stabilization system using macro- Invertebrates community and pollution tolerance index. International Journal of Innovative Research and Advanced Studies. Vol 3 Issue9.
  11. Orina PS., Rasowo J., Oyoo-Okoth E., Musa S., Munguti JM and Charo-Karisa H (2016). Combined effects of photoperiod and temperature on growth and survival of African catfish (Clarias gariepinus, Burchell 1822) larvae under laboratory conditions, Journal of Applied Aquaculture, 28:1, 17-25, DOI: 10.1080/10454438.2015.1113763.
  12. Ngugi CC., Oyoo-Okoth E., Mugo-Bundi J., Orina PS., Chemoiwa EJ and Aloo PA (2015). Effects of dietary administration of stinging nettle (Urtica dioica) on the growth performance, biochemical, hematological and immunological parameters in juvenile and adult Victoria Labeo (Labeo victorianus) challenged with Aeromonas hydrophila. Fish Shellfish Immunology. 2015 Jun; 44(2):533-41. doi: 10.1016/j.fsi.2015.03.025. Epub 2015 Mar 28.
  13. Opiyo MA., Orina PS., Kyule D., Munguti, JM., Nyonje BM and Charo-Karisa H. (2015). Growth performance and survival of three African Catfish (Clarias gariepinus, Burchell 1882) strains reared in hapas in Kenya. Bulletin of Animal Health and Production in Africa.
  14. Musa S., Orina PS, Aura CM., Kundu R., Ogello EO., Munguti JM (2014). The effects of dietary Levels of protein and greenhouse on growth, behaviour and fecundity of Nile tilapia (Oreochromis niloticus L.) broodstock. International Journal of Science and Research (IJSR) ISSN (Online). 2319-7064.
  15. Orina PS., Rasowo J., Gichana E., Maranga B and Charo-Karisa H (2014). Artificial breeding protocol and optimal breeding environment for Labeo victorianus (Boulenger, 1901). International Journal of Fisheries and Aquatic Studies. 1(6): 138-143.
  16. Orina PS., Rasowo JO., Opiyo MA., Boera P., Abwao J and Charo-Karisa H (2014). Optimization of seed and broodstock transport densities for improved survival of African carp (Labeo victorianus, Boulenger, 1901). International Journal of Chemical Studies. ISSN: 2321-4902, Volume 2 Issue 2.
  17. Abwao JO., Boera PN., Munguti JM., Orina PS and Ogello EO. (2014). The potential of periphyton based aquaculture for Nile tilapia (Oreochromis niloticus L.) production. A review. International Journal of Fisheries and Aquatic Studies. 2(1): 147-152.
  18. Orina PS., Maina J., Wangia S., Karuri E., Mbuthia P., Omolo B., Osure OG., Musa S and Munguti JM (2014). Situational analysis of Nile tilapia and African catfish hatcheries management: A case study of Kisii and Kirinyaga Counties in Kenya. Livestock Research for Rural Development. Volume 26 (5).
  1. Maina JG., Mbuthia PG., Ngugi J., Omolo B., Orina, PS., Wangia SM., Karuri EG., Maitho T and Owiti GO (2014). Influence of Socio-economic factors, gender and fish farming enterprise and productivity project on fish farming practices in Kenya. Livestock Research for Rural Development 26 (2).
  1. Orina PS., Opiyo MA and Charo-Karisa, H. (2013). Optimization of seed and broodstock transport densities for improved survival of cultured Nile tilapia (Oreochromis niloticus, L 1758). International Journal of Fisheries and Aquatic Studies. 2014; 1(5): 157-161.
  2. Musa S., Aura CM, Owiti G., Nyonje B., Orina PS and Charo-Karisa H (2012). Fish farming enterprise productivity program (FFEPP) as an impetus to Oreochromis niloticus (L.) farming in Western Kenya: Lessons to learn. African Journal of Agricultural Research. Vol. 7(8), pp. 1324-1330.
  3. Charo-Karisa H., Munguti JM., Ouma H., Masai MD., Opiyo M., Orina PS and Okechi J (2011). A fish farmer’s manual for beginners, students and hatchery managers.
  4. Oyoo-Okoth E., Mucai M., Ngugi CC., Njenga EW., Ngure V, Orina PS., Chemoiwa  EC and Wanjohi BK (2011). Zooplankton partitioning in a tropical alkaline-saline endorheic Lake Nakuru, Kenya: Spatial and temporal trends in relations to the environment. Lakes & Reservoirs: Research and Management 16:1-13.
  5. Charo-Karisa H., Orina PS., Opiyo MA., Munguti JM and Nyonje B (2010). Teaching Curriculum Development for Hatchery Managers and Fish Farmers in Kenya.
  6. Oyoo-Okoth E.,  Wim A., Osano O., Kraak HS., Ngure V., Makwali J and Orina PS (2010). Use of the fish endoparasite Ligula intestinalis (L., 1758) in an intermediate cyprinid host (Rastreneobola argentea) for biomonitoring heavy metal contamination in Lake Victoria, Kenya. Lakes & Reservoirs: Research and Management 15: 63–73.



  1. Onyango DM., Orina PS., Ramkat RC., Kowenje C., Githukia CM., Lusweti D., Miruka JB and Lunga’yia HBO (2019). Microcystin in Lake Victoria, Kenya. Brief 2019: Status, trends, challenges and future outlook.
  2. Orina PS., Ogello E., Kembenya E., Githukia C., Musa S., Ombwa V., Mwainge VM., Abwao J., Ondiba RN and Okechi JK (2018). State of Cage Culture in Lake Victoria, Kenya. Laxpress Services, Nairobi, Kenya. 62 p. ISBN: 978-9966-114-79-2.
  3. Munguti, J.M., Obiero K., Kyule D, Orina, P S, Githukia C.M, Opiyo M.A, Fonda J.A, Elijah E, Ondiba R., Abwao J, Musa S, and Njiru J. (2019) Training of Trainers (ToT) manual for aquaculture value chain, Master Trainers’ Manual, Kenya Climate Smart Agriculture Project (KCSAP) Secretariat, KALRO Headquarters
  4. Munguti, J. M., Obiero, K. O., Orina, P.S., Musa, S., Mwaluma, J., Mirera, D.O, Ochiewo, J. Kairo, J. and Njiru J. M. (Eds.) (2017). State of Aquaculture in Kenya. Laxpress Services, Nairobi, Kenya. 133 p.
  5. Domitila Kyule-Muendo, Jonathan Munguti, Mary A. Opiyo, Kevin O. Obiero, Cecilia M. Githukia, Paul S. Orina, James M. Njiru and Harrison Charo-Karisa (2017) Fish Recipe Book, Vol. 1, Kenya Marine and Fisheries Research Institute (KMFRI), Kenya Literature Bureau, Nairobi, Kenya. 45pp
  6. Mary Opiyo, Harrison Charo-Karisa, Kevin Obiero, Jonathan Munguti, Paul S. Orina, Erick O. Ogello, Julius Nyoro, Domitila N. Kyule, Betty Nyonje, and Bethuel O. Omollo (2017). Overview of Good Aquaculture Practices in Kenya. Kenya Marine and Fisheries Research Institute (KMFRI), 34pp.
  7. Mary Opiyo, Harrison Charo-Karisa, Betty Nyonje, Bethuel Omollo, Paul Orina, Miriam Wainaina, Kevin Obiero and Jonathan Munguti (2017). Good Aquaculture Practices in Seed Production in Kenya. (KMFRI), Kenya Literature Bureau, Kenya 60pp.
  8. Harrison Charo-Karisa, Jonathan Munguti, Henry Ouma, Mutune D. Masai, Mary Opiyo, Pual Orina, John K Okech (2011) Fish farmers manual, for beginner’s students and hatchery managers, Kenya Marine & Fisheries Research Institute. River brooks Communication Network publishers, Nairobi Kenya



  • Nature Kenya
  • Member of Aquaculture Association in Kenya (AAK)
  • Member of Sustainable Aquaculture Research Networks in Sub Saharan Africa (SARNISSA)