This publication contains the report of a workshop, held in Zambia in October 2002, organised to consider the role of commercial aquaculture in helping to secure poverty alleviation through the promotion of regional economic growth, employment opportunities and food security. Recommendations made include the need for clear national policies for commercial aquaculture development, defining models for economic and financial viability assessments to be applied by funding institutions, and disseminating research findings to farmers and information sharing at all levels of aquaculture development.

This publication contains the report of a workshop, held in Zambia in October 2002, organised to consider the role of commercial aquaculture in helping to secure poverty alleviation through the promotion of regional economic growth, employment opportunities and food security. Recommendations made include the need for clear national policies for commercial aquaculture development, defining models for economic and financial viability assessments to be applied by funding institutions, and disseminating research findings to farmers and information sharing at all levels of aquaculture development.

This document contains nine FAO commissioned papers on cage aquaculture including a global overview, one country review for China, and seven regional reviews for Asia (excluding China), northern Europe, the Mediterranean, sub-Saharan Africa, Latin America and the Caribbean, northern America and Oceania. The content of the papers is based on the broad experience and sound knowledge of the authors with advice and help received from many experts and reviewers around the globe. The papers were presented to a distinguished audience of some 300 participants from over 25 countries during the FAO Special Session on Cage Aquaculture - Regional Reviews and Global Overview at the Asian Fisheries Society (AFS) Second International Symposium on Cage Aquaculture in Asia (CAA2), held in Hangzhou, China, from 3 to 8 July 2006.

This study considers the elements of a legal framework designed to promote a sustainable commercial aquaculture. These relate to: a secure right to property and clean water; avoidance of unnecessary costs; and a licence system, including a system for environmental impact assessments and enforcement of codes of practice. Environmental supervision should extend to: controls over the use of exotic species and products from modern biotechnology. These include genetically modified organisms, disease control and health management, and to any water quality concerns created by the proposed project. The study analyses the aquaculture industries of Madagascar, Malawi, Mozambique, Nigeria and Zambia against these criteria. Improvements in legislation applicable to the individual countries, but which require consideration by all sub-Saharan countries are then suggested.

The Victoria, Tanganyika and Malawi lakes serve as renewable sources of freshwater and fish, besides fulfilling other important functions in their riparian countries. Their ecosystems are in danger, however. Research on the lakes' ecosystems and their main environment problems is a prerequisite to the formulation of strategies and action plans for integrated environmental management of the lakes' basins. This volume presents data collected and the main results of hydrological studies.