A5030932067- Aquatic Ecosystems and Biodiversity
- Fish Biology and Ecology Studies
- Aquatic Ecosystems and Phytoplankton Dynamics
- Water Quality and Pollution Assessment
- Fish Ecology and Management Studies
- Hydropower, Displacement, Environmental Impact
- Marine and fisheries research
- Aquaculture Nutrition and Growth
- Fish biology, ecology, and behavior
- Marine Bivalve and Aquaculture Studies
- Child Nutrition and Water Access
- Water-Energy-Food Nexus Studies
- Microplastics and Plastic Pollution
- Marine and coastal ecosystems
- Water resources management and optimization
- Coral and Marine Ecosystems Studies
University of Eldoret
2021-2024
Université Pédagogique Nationale
2022
In Africa, cage aquaculture has been growing due to its potential address food insecurity concerns, provide livelihoods, and contribute local economies. However, there is a need for continued research on the sustainability ecological effects of in African lakes reservoirs. Even with an adequate amount water, reservoirs cannot ecosystem services if their water quality not properly managed. The current study Lake Kivu, DRC focuses understanding tilapia selected physico-chemical parameters...
ABSTRACT Water quality assessment in freshwater ecosystems is crucial for understanding their health and ensuring safe water use various domestic purposes. This study on Lake Kivu highlights the significance of physicochemical parameters evaluating dynamics by index (WQI). The sampling characterization, including T°, DO, EC, pH, TDS, SiO 2 − , PO 4 3− NO 3 salinity, transparency, chlorophyll‐a, was collected four campaigns: spatial (seven urban seven rural drawing bathing stations) temporal...
Abstract Lacustrine and riverine ecosystems provide important goods services, including being habitats for aquatic biodiversity, local micro‐climate moderation a source of economic livelihoods riparian communities. At the same time, however, they fact continuing anthropogenic natural threats that can affect their water quality, ecological integrity biodiversity. The present study focused on assessing spatio‐temporal variations in quality trophic status Lake Baringo, Ramsar site Kenya. A...
Hydroelectric power (HP) represents the main source of electricity in Africa, including Democratic Republic Congo. The demand for new dam construction is high, and major projects are currently progressing through planning implementation stages. New HP dams should comply with both past emerging environmental requirements. River systems need water to maintain hydraulic ecological functions. Flow regime disturbance can prevent rivers from providing their ecosystem services disrupt riparian...
Abstract Freshwater ecosystems provide many services such as moderation of the local microclimate and a source water food for riparian communities. It is also preferred habitat organisms plankton, benthic macroinvertebrates fish. However, these are among most affected by various anthropogenic threats that modify quality ecological processes, thus affecting biodiversity. The objective this study was spatio‐temporal characterization physico‐chemical littoral parameters assessment disturbance...
Abstract Small waterbodies are the most threatened freshwater habitats because of large ratio between their size and catchment they drain. The present study assessed current historical changes in physical, chemical biological variables Lake Kanyaboli, a satellite lake on northern shores Victoria western Kenya. Primary secondary data pH, electrical conductivity (EC), dissolved oxygen (DO) concentration, temperature, Secchi depth (SD), nitrate (), nitrite ammonium soluble reactive phosphorus...
Factors influencing the spatio-temporal dynamics of plankton communities in small tropical lakes are not well-understood. This study assessed response to spatial (six sampling sites) and seasonal (wet vs. dry seasons) changes environmental variables Lake Kanyaboli, a satellite lake on northern shores Victoria, Kenya. Water quality variables, including pH, conductivity (EC), dissolved oxygen (DO), temperature, Secchi depth (SD), nitrates ( <mml:math...
Abstract The study was conducted in Lake Baringo, Kenya, and determined quantitative relationships between water‐level changes, water quality, fishery production for purposes of evidence‐based lake basin management. Long‐term data on level (1956–2020), quality (2008–2021), fisheries yields (1982–2021) from Baringo were analysed using a combination statistical methods. Linear waveform regression analyses used to describe patterns lake‐level fluctuations over time, while Pearson's correlation...
Labeo victorianus (Boulenger, 1901) is one of the endemic fishes in Lake Victoria Basin (LVB) but now threatened by multiple stressors caused human activities. We investigated spatial and temporal variability food composition condition L. influent rivers Victoria, Kenya. Sampling was done during dry wet seasons electrofishing. Food analysis showed that a benthophagus omnivorous species whose diet dominated detritus, periphyton insects. There were differences among rivers, with significant...
Abstract Water quality is a critical component regulating ecosystem functioning in aquatic habitats, requiring regular monitoring for sustainable services. Cage fish farming has the potential to affect water because of its rapid increase many African waterbodies response dwindling wild stocks. Thus, there need more studies guide cage aquaculture lakes and reservoirs. This study evaluated possible effects Nile tilapia ( Oreochromis niloticus ) on parameters trophic state Kadimu Bay, Lake...
Abstract Worldwide biodiversity is on the brink of extinction following complete disappearance many forest and freshwater vertebrates. This closely linked to reduction disturbance habitats, which should instead benefit from special conservation. In case lake ecosystems, fish spawning grounds remain most vulnerable. study aims identify, characterise locate nursery sites in Lake Kivu for better Sixteen sampling were selected along shoreline Bukavu sub‐basin. Physico‐chemical parameters...
Abstract Lakes are important in supporting ecosystem services and livelihoods. However, their food webs ecological functioning continuously threatened by anthropogenic influences. Food web models have been widely used studying trophodynamics, fisheries impacts, of temperate lakes, but less often Afrotropical lake systems. We Ecopath mass‐balanced trophic annually 1999, 2010, 2020 to assess trends function, the impact on Lake Baringo Ecosystem, a shallow freshwater Kenya. Pre‐balance (PREBAL)...
ABSTRACT A new fishing technique has been introduced in Lake Kivu, across the Congo side. It consists of gillnets on which light‐emitting diode (LED) lamps are attached. Traditional fishermen have without any studies related to positive and drawback effects this technique. We sought understand whether with LED improve catches can be regarded as sustainable for Kivu ecosystem, or is it just only a marketing strategy lamp sellers. Two complementary approaches used study. Experimental campaigns...
ABSTRACT Although Lake Kanyaboli provides a sanctuary for fish species that are considered extinct (e.g., Oreochromis esculentus , variabilis and Haplochromis spp.) in Victoria, comprehensive data on diversity abundance lacking. This study, conducted over year (February 2020 to February 2021), addressed this gap by assessing the temporal variation diversity, catch (biomass) Kanyaboli. The primary collected lake were supplemented with secondary data, physico‐chemical variables used correlate...
The study was conducted in Lake Baringo and determined quantitative relationships between water level changes, quality, fishery production for informed lake basin management. Long-term (2008 to 2020) data on level, fisheries yields from were analyzed using a combination of statistical methods. Linear waveform regression analyses described patterns fluctuations over time while, Pearson’s correlation the concordance changes with quality parameters, landings, condition fish species. PCA results...