June 2010
Colica pictonium variety zamfaraensis
June 2010
Bacteriological, physicochemical and mineral studies on Awedele spring water and soil samples in Ado Ekiti, Nigeria
Enterococci abound in faeces, survive long outside the enteric environment and possess unique ability to acquire and transfer antibiotic resistance. Recent studies have identified Enterococci as a relevant indicator of water quality. The current study focused on the prevalence of antimicrobial resistant forms of Enterococcus species isolated from Awedele spring water in Ekiti State...
June 2010
Aquifer characteristics and groundwater recharge pattern in a typical basement complex, Southwestern Nigeria
A geophysical survey involving thirty four vertical electrical sounding (VES) was carried out at Federal College of Education, Osiele, Abeokuta, southwestern Nigeria using Schlumberger electrode array. The locations were selected based on the existing boreholes drilled in the past within the study area. The results revealed a maximum of five geoelectric layers, viz: topsoil, sandy clay, clayey sand,...
June 2010
Studies on the occurrence and distribution of heavy metals in sediments in Lagos Lagoon and their effects on benthic microbial population
An investigation was conducted to assess the concentration of heavy metals in sediments in three selected locations along Lagos lagoon comprising University of Lagos, Ebute Metta and Ijora zones and correlate the effect of metal concentrations on benthic microbial population vis a vis the open water bacterial population. Physiochemical analysis revealed a pH of 8.94, 11.98 and 7.82 of University of Lagos,...
June 2010
Hydrologic fluxes in the Volta River watershed : A paleo-terrestrial environment in West Africa
The hydrologic cycle plays an important role in carbon cycling, due to the coupling of vapour release and CO2 uptake during photosynthesis. This coupling, expressed as water use efficiency of transpiration ratio, can provide an inexpensive alternative for estimating the Net Primary Productivity (NPP) of terrestrial ecosystem. Stable isotopes of hydrogen and oxygen and long-term hydrologic and...
June 2010
Phytoplankton productivity in newly dug fish ponds within Lake Victoria wetlands (Uganda)
The declining Lake Victoria fisheries resource led to a growing recognition of aquaculture as a source of livelihood to riparian communities. Finger ponds speculated to naturally stock fish during flooding and retain them during dry seasons were introduced within the lake’s wetlands. In order to develop a better understanding of these ponds’ dynamics, algal primary productivity was studied in...
June 2010
Vulnerability and adaptation of rain fed agriculture to climate change and variability in semi-arid Tanzania
A vulnerability assessment of rain fed agriculture to climate change and variability in semi-arid parts of Tabora Region in Tanzania was conducted in 2009. Four village clusters were selected out of which, three villages represent Millennium Villages Program (MVP) namely Mbola, Mpenge and Isila from Uyui District. One village namely Tumbi from Tabora Urban bordering the MVP was also selected. Both primary and...
June 2010
Removal of copper (II), iron (III) and lead (II) ions from Mono-component Simulated Waste Effluent by Adsorption on Coconut Husk
The use of coconut husk as a low-cost natural adsorbent for the removal of Cu (II), Fe (III) and Pb (II) from simulated industrial waste effluent was studied. Batch experiments were conducted to determine the effects of varying adsorbent loadings, pH, contact time, metal ion concentration and temperature of adsorption. The adsorption of Pb (II) was found to be maximum (94%±3.2) at pH 5, temperature of...
June 2010
Estimation of proximate composition and biogas production from in vitro gas fermentation of sweet potato (Ipomea batatas) and wild cocoyam (Colocasia esculenta) peels
The proximate composition in terms of percentage dry matter (DM), crude protein (CP), crude fibre (CF), ether-extract (EE), ash, nitrogen free extract (NFE) and carbohydrate of sweet potato peel (SPP) and wild cocoyam peel (WCP) were determined. Buffered and sieved goat’s rumen liquor was added to 200 mg of dried and milled SPP and WCP in 100 ml syringes supplied with C02 under anaerobic condition...
June 2010
Studies on the kinetics and intraparticle diffusivities of BOD, colour and TSS reduction from palm oil mill effluent (POME) using boiler fly ash
The palm oil industry has been identified as one of the main contributors of organic pollution. These industries generate large volumes of effluent and solid waste including boiler fly ash. The kinetics and intraparticle diffusivities of BOD, TSS and colour reduction from palm oil mill effluent (POME) using boiler fly ash was reported in this paper. The amount of BOD, colour and TSS adsorbed increased as the...
June 2010
Aerial survey of Elephants (Loxodonta africana africana), other large mammals and human activities in Waza National Park, Cameroon
Total aerial count of elephants, other large mammals and human activities in Waza National Park was conducted between 21st and 23rd February 2007. Total counts of elephants and other wildlife species were done and livestock numbers were estimated. A Cessna 206 Stationair six-seater aircraft fitted with GPS was used in navigation, recording survey paths and waypoints. A total of three different herds of 180...
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