Dr. Chrisphine Nyamweya

Dr. Chrisphine Nyamweya

Nyamweya has been working on lake ecosystems for over 9 years with long standing research experience covering diverse areas of freshwater fish ecology.  He has special interest in population and community dynamics, ecosystem functioning and responses to climate and human induced changes, application of hydroacoustics to estimate fish biomass and distribution in both space and time, application of smart technologies in data collection and analysis, development of management decision support and evaluation tools. He has been an investigator in at least more than 10 national, regional and international projects. Currently he is Investigator in an NSF funded project on “The potential for aquaculture in Lake Victoria and implications for wild fisheries and fish commodity markets”. He has published more than 30 papers, 17 of them in SCI-indexed journals

KMFRI Kisumu
Ecological modeling
Ecosystem functioning, fish stock population dynamics, and Management Strategy Evaluation (MSE)

Aloo, P. A., Njiru, M. J., , Balirwa, J. S. and Nyamweya C. S. (2017)  Impacts of Nile Perch, Lates niloticus on the Ecology, Economy and Conservation of Lake Victoria, East Africa. Lakes and Reservoirs: Research and Management, 22: 1–14. DOI: 10.1111/lre.12192

Nyamweya, C., Sturludottir, E., Tomasson, E. A., Taabu-Munyaho, A., Njiru, M., & Stefansson, G. (2017) Prediction of Lake Victoria’s response to varied fishing regimes using the Atlantis ecosystem model. Fish Research, 194: 76-83, DOI: 10.1016/j.fishres.2017.05.014

Ogello, E. O., Kembenya, E. M., Githukia, C. M., Aera, C. N., Munguti, J. M., and Nyamweya, C. S. (2017) Substitution of fish meal with sunflower seed meal in diets for Nile tilapia (Oreochromis niloticus L.) reared in earthen ponds. Journal of applied aquaculture, At23:45 http://dx.doi.org/10.1080/10454438.2016.1275074

Kundu, R., Aura, C. M., Nyamweya, C., Agembe, S., Sitoki, L., Lung'ayia, H. B. O., Ongore, C., Ogari, Z. and Werimo, K. (2017), Changes in pollution indicators in Lake Victoria, Kenya and their implications for lake and catchment management. Lakes and Reservoirs: Research and Management, 22: 199–214. doi:10.1111/lre.1218

Nyamweya, C., Sturludottir, E., Tomasson, T., Fulton, E. A., Taabu-Munyaho, A., Njiru, M., & Stefansson, G. (2016). Exploring Lake Victoria ecosystem functioning using the Atlantis modeling framework. Environmental Modelling & Software, 86: 158–167. http://doi.org/10.1016/j.envsoft.2016.09.019

Nyamweya, C., Desjardins, C., Sigurdsson, S., Tomasson, T., Taabu-Munyaho, A., Sitoki, L., & Stefansson, G. (2016). Simulation of Lake Victoria Circulation Patterns Using the Regional Ocean Modeling System (ROMS). PLoS ONE, 11(3): e0151272. http://doi.org/10.1371/journal.pone.0151272

Kundu, R., Muchiri, M., Njiru, M., and Nyamweya, C. (2016) Effect of Social and Economic Drivers on Success of Small Scale Fish farming in Western Kenya. African Journal of Tropical Hydrobiology and Fisheries, 14: 29- 44

Omondi, R, Kembenya, E., Nyamweya, C. S., Ouma, H., Machua, S. K. and Ogari, Z. (2014). Recent limnological changes and their implication on fisheries in Lake Baringo, Kenya. Journal of Ecology and the Natural Environment. 6(5): 154-163

Taabu-Munyaho, A., Nyamweya, C. S., Sitoki, L., Kayanda, R., Everson, I., and Marteinsdóttir, G. (2014). Spatial temporal variation in the distribution and density of pelagic fish species in Lake Victoria, East Africa. Aquatic Ecosystem Health & Management, 17(1):52–61. http://dx.doi.org/10.1080/14634988.2014.876886

Ojwang, W., Ojuok, J. E., Nyamweya, C. S., Agembe, S., Owili, M., Yongo, E., and Wakwabi, E. O. (2014). The intriguing dynamics of Rastrineobola argentea fishery in the Kenyan waters of Lake Victoria. Aquatic Ecosystem Health & Management, 17 (1): 80–89. http://dx.doi.org/10.1080/14634988.2014.879036

Njiru, M., Van der Knaap, M., Taabu-Munyaho, A., Nyamweya, C. S., Kayanda, R., and Marshall, B. E. (2014). Management of Lake Victoria fishery: Are we looking for easy solutions? Aquatic Ecosystem Health & Management, 17 (1) 70-79. http://dx.doi.org/10.1080/14634988.2014.881220

Yongo, E. O., Morara, G., Ojuok, J. E., Nyamweya, C. S., Ojwang, W. O., Masai, M. and Wasike, C. (2013). Socio-economic Aspects of Fisheries Management in Lake Naivasha. African Journal of Tropical Hydrobiology & Fisheries. 13: 27-32

Nyamweya, C.S., Mlewa, C.M., Ngugi, C.C., et al. (2012) Aspects of the biology of Labeo cylindricus (Pisces: cyprinidae) in Lake Baringo, Kenya. Lakes & Reservoirs: Research & Management 17, 225–229.

Nyamweya, C.S., Mlewa, C.M., Ngugi, C.C. and Kaunda-arara, B. (2010a) Daily growth of young-of-the-year of the. African Zoology 45, 139–143.

Nyamweya, C.S., Mlewa, C.M., Ngugi, C.C. and Kaunda-Arara, B. (2010b) Validation of daily growth of African catfish Clarias gariepinus (Burchell 1822) young-of-the-year from Lake Baringo, Kenya. Lakes & Reservoirs: Research & Management 15, 341–345. 

Aura, C. M., Musa, S., Odoli, C. O., Nyamweya, S. C., Njiru, J. M., Wanyama, R., (eds). 2017. A technical manual on the best management practices for cage fish farming in Lake Victoria, Kenya. Kenya Marine and Fisheries Research Institute, Kenya. ISBN: 978-9966-103.

Aura, M.C., Wanyama, Musa, S., Odoli, C., Nyamweya, C., Njiru, J.M. (Eds). 2017. Best Management Practices of Cage Culture in Lake Victoria, Kenya. Published by Zemma Media Services Ltd. 24pp.

Njiru, M., Nyamweya, C.S., Gichuki, J., Muggide, R., Mkumbo, O. and Witte, F. (2011) Increase in Anoxia in Lake Victoria and Its Effects on the Fishery. intechopen.com, 99–128.

Njiru, M., Sitoki, L., Nyamweya, C.S., Jembe, T., Aura, C., Waithaka, E. and Masese, F. (2012) Habitat degradation and changes in Lake Victoria fisheries. In: Environmental Degradation: Causes, Issues and Management. NOVA Publishers, pp 1–34.