May 2010
The River Nile: Managing Turbulence
May 2010
Phytoremediation potential of kenaf (Hibiscus cannabinus L.) grown in different soil textures and cadmium concentrations
This study investigated effect of soil textures and cadmium (Cd) concentrations on the growth, fibre yields and Cd absorption of kenaf. Screen-house experiment was conducted in the University of Agriculture, Abeokuta (UNAAB), Ogun State, Nigeria. Top soils were collected from Murtala Victoria Botanical Garden, Epe, Lagos State, Nigeria and UNAAB Teaching and Research Farm. Ten-litre plastic pots were filled...
May 2010
Validation of Orchestia gammarellus enzymatic activities in several sites of Tangier’s bay (Morocco)
Marine biodiversity is increasingly at risk because of coastal contamination. Biomarkers of pollutant exposure can be very useful for marine biodiversity conservation. The aim of this research was to validate the enzymatic activities (catalase, esterase, α-amylase and acetylcholinesterase) of Orchestia gammarellus in several sites of Tangier’s bay to improve predictive performance...
May 2010
A study of the distribution and diversity of the Family Orchidaceae on some selected lava flows of Mount Cameroon
A survey was conducted between December 2005 and November 2006 to determine the diversity and distribution of the family Orchidaceae on three lava flows on Mount Cameroon and to relate species diversity and abundance to altitude, age and soil types. Thirty plots, each of 10 ×10 m were surveyed at low, mid and high altitudes on each lava flow. Forty nine orchid species belonging to 14 genera were...
May 2010
Characteristics of snail farmers and constraints to increased production in West and Central Africa
Snail gathering/rearing is an important source of livelihood for rural dwellers in the humid forest and derived savannah zones of West and Central Africa. Recently, declining populations of Archachatina archachatina and Archachatina marginata species is being observed, with climatic conditions and changes in land use implicated as causal factors. However, these claims are still to be...
May 2010
Age and growth of Distichodus antonii (Schilthuis, 1891) (Pisces, Teleostei, Distichontidae) in Pool Malebo, Congo River
The estimation of demographic parameters of Distichodus antonii, in Pool Malebo (Congo River), was obtained from analysis of 36 good scales samples. L∞ was estimated at 107.91 cm, K at 0.10 .year-1 and t0 at -0.67 year-1. The growth parameters calculated from this method revealed that this fish has a slow growth rate and it reaches a large size. The analysis of marginal increase...
May 2010
Environmental aspect of oil and water-based drilling muds and cuttings from Dibi and Ewan off-shore wells in the Niger Delta, Nigeria
Drilling muds and cuttings derived from Ewan and Dibi off-shore wells in the Niger-Delta petroleum province of Nigeria was studied in order to evaluate their toxicity and possible environmental impacts that may result from their indiscriminate disposal. Oil based drilling wastes (muds and cuttings) were collected at prescribed depths and analyzed for aliphatic hydrocarbon (AH) and polynuclear aromatic...
May 2010
Effects of phosphate rock application on dry matter yield and phosphorus recovery of maize and cowpea grown in sequence
The study was conducted in a greenhouse at the Institute of Agricultural Research and Training (IAR & T) Ibadan, Nigeria to evaluate the influence of P source, rate and frequency on dry matter yield of maize and cowpea grown sequentially in three soil types. Three sources of P: Ogun phosphate rock (OPR: 20.2% P2O5); Crystallizer super (CS: 31.4% P2O5) and Single super phosphate (SSP: 18.0% P2O5); Four...
May 2010
Factors affecting medical waste management in low-level health facilities in Tanzania
A study on evaluation of medical waste management systems was conducted in the low-level health facilities (LLHFs) in Dar es Salaam by comparing Ilala and Kinondoni municipalities. Questionnaires, interviews, visits and observation were used in data collection. The study has revealed that; most of the facilities have no specific disposal sites. In Ilala, 70% of the health facilities burn wastes in poorly...
Advertisement
Advertisement
