Browsing School of Natural Resources and Environmental Studies by Title
Now showing items 99-118 of 130
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Radiometric survey of the Tyaa river sand mine in Kitui, Kenya
(2020-07-02)Gamma spectroscopic analyses of sand and rock samples from Tyaa River report an average activity concentration of 33 ± 1, 55 ± 2.8 and 812 ± 40.46 Bqkg-1 for 226Ra, 232Th and 40K, respectively in the sand. A similar analysis ... -
Recent changes in fish communities of the equatorial Lake Naivasha, Kenya
(International Journal of Fisheries and Aquaculture, 2013-04)Changes in fish species composition and abundance in Lake Naivasha were investigated monthly for a period of 12 months. Data were obtained both from experimental surveys as well as commercial fish landings. The structure ... -
Relationships Between Cattle and Biodiversity in Multiuse Landscape Revealed by Kenya Long-Term Exclosure Experiment
(Elsevier, 2018-05)On rangelands worldwide, cattle interact with many forms of biodiversity, most obviously with vegetation and other large herbivores. Since 1995, we have been manipulating the presence of cattle, mesoherbivores, and ... -
Remote Sensing Applications for Sustainable Aquaculture in Africa
(IEEE, 2007)The authors review the current state of the science with respect to remote sensing applications for aquaculture, including site location, aquaculture facility mapping, market proximity analysis and associated roadway ... -
A Review of the Status and Potential of the Coastal and Marine Fisheries Resources in Kenya
(International Journal of Marine Science, 2014-11)The fishery sector is critically important especially in the developing world where millions of people depend on fish for their livelihood. In Kenya, fish is a very important source of food and in some communities, more ... -
A Review on the Potential of Aquaculture Development in Kenya for Poverty Alleviation and Food Security
(African Journal of Food, Agriculture, Nutrition and Development, 2017-03)On the global scene, aquaculture accounts for about 50% of total fish production amounting to about 80 million metric tonnes. It is estimated that another 40 million metric tonnes of aquatic food will be required by the ... -
The risk of pathogenic intestinal parasite infections in Kisii Municipality, Kenya
(BMC Public Health, 2008-07)Background: Intestinal parasitic infections are among the most common infections worldwide. Various epidemiological studies indicate that the prevalence of intestinal parasites is high especially in developing countries, ... -
The Role of Selected Environmental Factors on the Regeneration of (Ocotea usambarensis ) in Mount Kenya Forest, Kenya
(International Journal of Agriculture, Environment and Bioresearch, 2018)Despites the propagation efforts, density of Ocotea usambarensis has continued to diminish in the southern slopes of Mount Kenya. The species which is native in the montane forest is seldom on farm and found as remnant ... -
Seed dispersal by Tana River mangabeys in fragmented gallery forests
(SciRes, 2012) -
Shifts in the food of Nile tilapia, Oreochromis niloticus (L.) in Lake Victoria, Kenya
(African Journal of Ecology, 2004) -
Spatial and seasonal variations in phytoplankton community structure in alkaline–saline Lake Nakuru, Kenya
(Blackwell Publishing Asia Pty Ltd, 2009) -
Spatial scales influence long-term response of herbivores to prescribed burning in a savanna ecosystem
(CSIRO PUBLISHING, 2017-04)Both wild and prescribed fire in savanna ecosystems influence habitat use by herbivores by creating or maintaining spatial and temporal heterogeneity in forage quality and vegetation cover. Yet little is known about how ... -
Spatial scales influence long-term response of herbivores to prescribed burning in a savanna ecosystem
(CSIRO PUBLISHING, 2017-01)Both wild and prescribed fire in savanna ecosystems influence habitat use by herbivores by creating or maintaining spatial and temporal heterogeneity in forage quality and vegetation cover. Yet little is known about how ... -
Spatio-temporal dynamics of land use practices on rivers in tropical regions: A case study of Ruiru and Ndarugu Basins, Kiambu County, Kenya
(2017-03)Land use dynamics are known to cause considerable modifications to the environment with broad and sometimes severe impacts on water quality and aquatic natural resources. In this study, the impacts of land use practices ... -
Spawning interactions between hatchery-reared and wild naturalized rainbow trout (Oncorhynchus mykiss, Walbaum, 1792) in high-altitude tropical streams, Kenya
(Wiley, 2022-07)Rainbow trout (Oncorhynchus mykiss) is among the most widely translocated fish species in the world. The current study evaluated the spawning interactions between naturalized and wild rainbow trout from two high-altitude ... -
Species Richness and Abundance of Birds in and Around Nimule National Park, South Sudan
(The science publisher, 2016) -
Stand Composition, Floristic Affinities and Plant Formations in Mau Forests
(Academia, 2014)The Mau ecosystem post-disturbance recovery process, integrity retention and resilience to future disturbances and sustainability remain unknown. In this paper, the ecosystem floristic composition, richness, diversity and ... -
The status and future of the Lake Naivasha fishery, Kenya
(Kluwer Academic Publishers, 2002)Lake Naivasha is a freshwater lake situated in the eastern rift valley of Kenya. Only five species of fish are present, all of which have been introduced. They are Oreochromis leucostictus, Tilapia zillii, Micropterus ... -
A study of common causes of mortality among Fishermen in Lake Victoria, Kenya
(African Journal of Health Science, 2018-10)The fishing industry in Kenya plays an integral role in the socio-economic development of Kenya. However, the working environment of fishermen is characterized by a wide variety of occupational hazards and mortality ...