<span>Mr. Job Mwamburi</span>
Scientist

Mr. Job Mwamburi

Research Scientist

Kenya Marine and Fisheries Research Institute
 
Senior Research Scientist
Limnology Research
 
Environmental Geochemistry & Water Quality
Trace Metals • Microplastics • Eutrophication • Ecotoxicology
 

Email: jmwamburi@kmfri.go.ke

 
Location
Kisumu Research Centre
Years of Experience
1989 to date (37 years at KMFRI)
Research Interests
Anthropogenic impacts on trace metals, organic contaminants & microplastics pollution in aquatic ecosystems; Monitoring water hyacinth and its potential in phytoremediation; Watershed impacts, wet-dry deposition and eutrophication in inland water bodies; Fish waste utilization, cage aquaculture impacts on water and surficial sediments quality; Biomonitors, wastewater and solid waste management technologies; Ecotoxicology and bioassessments; Cyanotoxins monitoring in aquatic environments; Sedimentary environments and sediment biodiversity, pore water studies, sedimentation processes, and biogeochemical cycles; Use of GIS techniques in natural resources planning and management; Environmental impact assessments (EIA) for sustainable environmental management
Research Focus: Understanding sources, distribution, concentration levels and effects of environmental contaminants in lentic and riverine ecosystems; and water quality monitoring in different watersheds in Kenya, to inform and guide the sustainable management of inland fisheries and water resources.
 

Job Mwamburi is a Senior Research Scientist (SRS) at the Kenya Marine and Fisheries Research Institute (KMFRI), Freshwater Systems, Limnology Research Department, Kisumu Research Centre, where he has served from 1989 to date. He is involved and has participated in several collaborative and individual research projects and activities, geared towards understanding sources, distribution, concentration levels and effects of environmental contaminants in lentic and riverine ecosystems; and water quality monitoring in different watersheds in Kenya, to inform and guide the sustainable management of inland fisheries and water resources.

He was a task coordinator on monitoring of pollution in Lake Victoria (2010-2012) under Lake Victoria Environmental Management Project (LVEMP) Phase II. He coordinated multidisciplinary research projects under the KMFRI's Ecology and Environment Research Program (2003-2004; 2007-2012); and the Fish Biology and Biodiversity Conservation sub-component of the Fisheries Research Component under LVEMP phase I from January 2004-2006. He participated in the water quality monitoring program (WQMP) Technical Coordination Committee, under the Lake Victoria South Water Services Board (LVSWSB) and was a member of the Cyanobacteria monitoring program (2019). Research results and information is documented in several scientific publications and has been disseminated in international, national and regional conferences, workshops and seminars.

 
Research Focus
  • Geochemical characterization & mapping of surficial sediments
  • Plastic litter and microplastics assessment
  • Impacts from cage aquaculture operations
  • Water & sediment quality assessments; potential reuse of biosolids in agriculture
  • Monitoring of contaminants in fishing grounds and along foodwebs
  • Water hyacinth monitoring
  • Watershed impacts; eutrophication and climate change impacts on the lake ecosystems & fisheries
 
Key Activities
  • Geochemical characterization; identification of pollutant sources & mapping of surficial sediments to support decision making and resource management plans
  • Plastic litter and microplastics assessments in inland lakes and riverine ecosystems to inform resource managers
  • Water quality and contaminants monitoring in fishing grounds to ensure a sustainable cage aquaculture & fisheries
  • Water hyacinth monitoring to support the management of aquatic invasive species
 
Key Expertise
  • Freshwater sediment studies
  • Water & sediment quality monitoring
  • Plastics litter and microplastics monitoring
  • Ecotoxicology
 
Research Interest / Areas of Expertise
  • Anthropogenic impacts on trace metals, organic contaminants & microplastics pollution in aquatic ecosystems
  • Monitoring water hyacinth and its potential in phytoremediation
  • Watershed impacts, wet-dry deposition and eutrophication in inland water bodies
  • Fish waste utilization, cage aquaculture impacts on water and surficial sediments quality
  • Biomonitors, wastewater and solid waste management technologies
  • Ecotoxicology and bioassessments
  • Cyanotoxins monitoring in aquatic environments
  • Sedimentary environments and sediment biodiversity, pore water studies, sedimentation processes, and biogeochemical cycles
  • Use of GIS techniques in natural resources planning and management
  • Environmental impact assessments (EIA) for sustainable environmental management
 
Academic Qualifications
  • MSc – Environmental Sanitation – Ghent University, Belgium
  • BSc – Geology, Chemistry & Mathematics – University of Nairobi (UON), Kenya
 
Research Projects/Activities
  • Assessment of plastic litter in Lake Victoria, Kenya (2025-2026)
  • Ecological studies on three major Rivers in Lake Victoria basin to inform fisheries management (2023)
  • BGS/UOE/KMFRI PROJECT – The British Geological Survey (BGS); the University of Eldoret (UOE) and Kenya Marine and Fisheries Research Institute (KMFRI) multidisciplinary project on Dynamics of environmental geochemistry and health (2022)
  • SAWA PROJECT: Sustainable Activities in Water Areas Project (2022)
  • Water quality monitoring program (WQMP) Technical Coordination Committee. Lake Victoria south water services board (LVSWSB) and Member of the Cyanobacteria study and water quality monitoring program, Kisumu bay (From 2019)
  • Monitoring pollution in 4 biodiversity hotspots in L. Victoria (Nyando, Awach, Nzoia and Yala river mouths) and prepare a technical report for informed management decisions (2020)
  • Lakes Jipe and Challa Expedition (March 2020)
  • Aquaculture, safe and nutritious source of protein and healthy Lake Victoria communities free from hunger and poverty (GCRF Interdisciplinary Research Project) (Collaborative project with University of Eldoret (UOE); KMFRI, University of Nottingham-UK, and British Geological Survey (BGS)-UK)
  • Monitoring and mapping of water hyacinth and other floating macrophytes in Lake Victoria for improved water hyacinth surveillance to inform resource users. KMFRI/GoK
  • NEWTONFUND project 2018 (Research Collaboration) Aquaculture: Pathway to food security in Kenya. (BGS/UOE/KMFRI)
  • Which river catchment pollutes Lake Victoria, Kenya the most? A proof of concept for management implications NRF project (2018)
  • NSF Trawl surveys of Lake Victoria (June-July 2017). Funded by National Science Foundation NSF-KMFRI Project August 2017
  • Effectiveness of Co-management (BMUs) of Fisheries in Lake Victoria Kenya for informed decision making (June 2017)
  • Evaluating the effectiveness of fish post-harvest losses reductions interventions on Lake Victoria to guide in fish post-harvests management (June 2017)
  • Determination of environmental, social and ecological impacts of cage culture in Lake Victoria (Kenya) to guide management in fish cage culture (June 2017)
  • Monitoring the extent of macrophytes and other invasive weeds on Lakes Victoria to establish the impact on the fisheries to facilitate their management (June 2017)
  • Cage Culture stakeholders' sensitization workshop to transfer skills on better cage culture management practices in Lake Victoria (March-May 2017): KMFRI, SDF, FARM AFRICA
  • Status of river Kuja fisheries and environment (2017)
  • The Status of Lake Kanyaboli Fisheries: Water quality, challenges and prospects for sustainability (2017)
  • Lake Victoria Environmental Management Project (LVEMP)-Phase-II (2010-2013): Monitoring of pollution in fishing grounds
  • Lake Baringo Research Project (LABRE) (2007-2009) on Assessment of the fisheries, water quality and socio-economics of Lake Baringo
  • Lake Victoria Environmental Management Project (2000-2004)
  • Lake Naivasha Research Project (LNRP) (2001-2002; 2007)
  • Kenya Belgium Joint Project in Freshwater Ecology (1994-1996). Study of some inorganic contaminants in the water, sediments, fish and benthic organisms of Lake Victoria (Kenya) and major rivers
 
Selected Publications
Mwamburi J. (2026). The physico-chemical characteristics, total trace and major elements in water and surficial sediments during drought conditions in the highly turbid perennial rivers, hotspring and lake Baringo, Kenya. Asian Journal of Environment & Ecology, 25: 1-27. https://doi.org/10.9734/ajee/2026/v25i7959
Mwamburi J., Aura C.M., Akama, E., Mwanchi, J., Sharon, M., Nyamweya, C.S., Achiya, J., Onduso, G. (2026). Monitoring the spatio-temporal variations of nutrients, physico-chemical variables and influences on the fish species within a shallow embayment of Winam Gulf (Lake Victoria, Kenya). Journal of Environmental Reports, 8:147-171. https://doi.org/10.51470/ER.2026.8.147
Otieno, D., Mwamburi, J., Sitoki, L., Omondi, R., Shitandi, A., Owuor, B., Bullerjah, G.S., Otiso, K.M., McKay, R.M., Drouillard, K.G., NSF-IRES Lake Victoria Consortium (2025). Locally produced fish food pellets yield little evidence as dietary substrate for net-pen reared Nile tilapia (Oreochromis niloticus) in Lake Victoria, Kenya. Journal of Great Lakes Research, 51: 1-9. https://doi.org/10.1016/j.jglr.2025.102686
Mwamburi J., Miruka, J.B., Guya, F., Wawiye, P., Morara, G.B., Ongore, C., Nyaundi, J.M.K., Aura, C.M., Nyamweya, C.S., Muli, R.M. (2025). The spatio-temporal changes in water quality and influences on the phytoplankton, zooplankton and fish species in four large riverine ecosystems in Lake Victoria, Kenya. Asian Journal of Environment & Ecology, 24(10):14-45. https://doi.org/10.9734/ajee/2025/v24i1079
Mwamburi J. (2025). Ubiquitous presence of microplastics (MPs): A review of occurrence, abundances, spatial distribution and future effects in the surface waters (Kenya). Asian Journal of Environment & Ecology, 24(6):263-281. https://doi.org/10.9734/ajee/2025/v24i6741
Mwamburi, J. (2024). Status of Trace Elements' Concentrations in Lake Baringo's Catchment in Kenya: A Review. Asian Journal of Environment & Ecology 23 (12):47-68. https://doi.org/10.9734/ajee/2024/v23i12634
Mwamburi J. (2024). Spatial Trends of Cadmium and Zinc Concentrations in Water and Enrichments in Surficial Sediments Within Nyanza (Winam) Gulf of Lake Victoria (East Africa). Asian Journal of Environment & Ecology 23 (12):165-86. https://doi.org/10.9734/ajee/2024/v23i12641
Aura, C. M., Humphrey, O.S., Marriott, A. L., Watts, M.J., Ongore, C. O., Mwamburi, J., Osano, O., Cofey, T.J. (2024). Assessing the spatial distribution of elemental concentrations in surface sediments of Lake Victoria, Kenya: implications for ecological health and management. Environ Geochem Health 46:137. https://doi.org/10.1007/s10653-024-01930-7
 
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