While an overwhelming majority of sub-Saharan African countries exhibit serious weaknesses in statistics pertaining to crop and livestock sectors, the deficiencies in terms of nationallyrepresentative data on the fishery sector are even more acute. The very little data available on the sector are essentially derived from case studies of selected fisheries, and the limited nationally representative data available are generally derived from a few questions included in the livestock section of household surveys.
A mass-balance steady-state trophic model of the coastal fisheries ecosystem off the West Coasts of Sabah and Sarawak, Malaysia (10 - 60 m depth) was constructed using the Ecopath software. The ecosystem models were partitioned into 29 ecological/trophic groups. The input values (e.g. biomasses) for selected groups were obtained from the research (trawl) surveys conducted in the area in 1972. The estimated mean trophic level of the fisheries catch for both models is about 3.3.
The biomass of 40 ecological groups, the diet composition of prey and predators, production/biomass (P/B) and consumption/biomass (Q/B) ratios, and catches were used as basic input to parameterize an Ecopath model of the Gulf of Thailand. Following construction of a mass-balance ecosystem model, a time-dynamic simulation model (Ecosim) was used to simulate the impact of change in fishing effort. This was done using time series data to validate the historic fisheries development in the Gulf of Thailand prior to using the model for forward-looking simulations.
The CGIAR Research Program on Aquatic Agricultural Systems (AAS) is committed to improving the food security and wellbeing of poor people who depend on freshwater and coastal ecosystems for their livelihoods. AAS is particularly concerned with enhancing the equity of the social, economic and political structures that influence the livelihoods of poor households dependent on aquatic agricultural systems.
The Adaptive Collaborative Management of Fisheries Training workshop was held in Sekondi, Western Region of Ghana as part of the project “Integrated Coastal and Fisheries Governance Initiative” locally referred to as “H n Mpoano”.
An examination is made of fisheries management in the islands of Oceania, and problems caused by traditional beliefs and custom
This articles examines the progress and the problems of the fishery resources management in China.
The concept of a disc-shaped two dimensional imaginary planet called Arde is conceived in which there is up and down, forward and backward but no left and right; and the first elements of a theory of fishing in a two dimensional world along with advice on the management of fisheries there, is described.
Sunamganj is a land dominated by floodplains with seasonally flooded tectonic depressions known locally as haors and smaller water bodies known as beels. People’s livelihoods and culture are largely dominated by the haor economy where beel fisheries play a very critical role. Although the beel has a wide range of resources, the people at large have not been able to benefit from them. A small number of people by virtue of their power and influence have been exploiting the resources overriding all the codes of resource management and maintenance.
This report presents information gathered during a short trip (November 14 to December 2, 1978) which the author made to observe the recent developments in inland fisheries research in India, Nepal, and Sri Lanka.