An independent, peer reviewed journal for policy makers and practitioners in agriculture and related industries, assessing the interactions between population growth, resources, the environment and climate change.
Summary
Fish is a key dietary ingredient in many coastal and landlocked African countries providing much-needed high-quality protein. The WorldFish Center cites a decline in the per capita supply of such protein in sub- Saharan Africa (SSA) which they attribute to a decline of fish from wild fisheries and rising population in the region. This paper contends that scarcity is primarily driven by sharply rising exports and the failure of aquaculture to meet predicted shortfalls despite …
Summary
In the West and in rapidly developing countries, for instance China, the overuse of phosphorus (P) in fertilisers and manures can cause serious eutrophication. In Sub-Saharan Africa the opposite problem – an acute shortage of P- is a more common occurrence. Here we highlight both problems and suggest some possible solutions.
Almost all rivers, streams, ponds or lakes in the UK shows signs of eutrophication. Eutrophication firstly reveals itself as excessive weed and algal …
Introduction
The situation in Africa is dire.
Even before the recent world food crisis, a stag- gering one in three people and a third of all children were undernourished and more than one half of all Africans (about 300 mil- lion people) lived on less than one dollar per day, and the continent was becoming increasingly dependent on relief aid from abroad.
As a result of the recent food price increases, the FAO estimates an addition- al 100 million Africans were driven further …
