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No Thumbnail AvailableBook (series)IPFC Indo-Pacific Fisheries Commission. Report of the fifth session of the Working Party on Aquaculture and Environment. Jakarta, Indonesia, 22-26 January 1980. 1980
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No Thumbnail AvailableBook (series)Health management in Asian aquaculture.
Proceedings of the Regional Expert Consultation on Aquaculture Health Management in Asia and the Pacific Serdang, Malaysia, 22–24 May 1995
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No results found.In 1994, world aquaculture production reached 25.5 million mt, valued at US$ 39.83 billion. Asia contributed 89.9% of this total, and has since continued to dominate global production. The drive to produce more fish and shellfish to meet the growing demand has lead many aquaculturists in Asia to intensify their operations. In many instances, the complex balance between the fish/shellfish and the environment is not well understood, the organism under culture subsequently becoming stressed and pro ne to infections. As we have already witnessed, disease has been and will continue to be a major constraint to the development of the aquaculture industry. Considering the FAO's priority on developing sustainable aquaculture, the large Asian contribution to global aquaculture production and the seemingly high losses of revenue due to diseases and health-related problems, FAO, in consultation with the Network of Aquaculture Centres in the Asia-Pacific (NACA), the Aquatic Animal Health Research In stitute (AAHRI), the South East Asian Fisheries Development Centre (SEAFDEC) and the Universiti Pertanian Malaysia (UPM), and in collaboration with the Fish Health Section of the Asian Fisheries Society (FHS/AFS), organized a Regional Expert Consultation on Aquaculture Health Management in Asia and the Pacific, which was held at the Universiti Pertanian Malaysia in Serdang, Malaysia in May 1995. This document comprises the technical papers presented at the Consultation, and is a supplement to th e report of the consultation, FAO Fisheries Report No. 529 (FAO, Rome, 1995. 24 p.) (Key words: Asia, Pacific, Aquaculture, Fish disease, Health management, Quarantine) -
Book (series)Review of Tropical Reservoirs and Their Fisheries - The cases of Lake Nasser, Lake Volta and Indo-Gangetic Basin Reservoirs. 2011
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No results found.Freshwaters contribute 15 percent of the world’s reported fish catch, or about 10.1 million tonnes in 2006, most of which comes from tropical systems. The true contribution of tropical inland fisheries is likely to be higher, as less than half of the inland capture production is actually reported. While reservoir fisheries are already an essential component of this production, the potential of most of them may even exceed their current catch levels. Opportunities exist to increase prod uctivity, provided that environmentally and socially sustainable management systems can be adopted. To realize this untapped potential, it is necessary to improve understanding of the processes influencing reservoir productivity in such a way as to involve both biological principles and stakeholder participation, as each reservoir has different properties and different research and management institutions. Seen in isolation, catch and productivity data of individual reservoirs may be difficult to interpret. The present technical paper attempts to address this issue by reviewing the knowledge accumulated in reservoirs in some very different tropical river basins: the Indus and Ganges/Brahmaputra Basin in India, the Nile River Basin in Eastern Africa and the Volta River Basin in West Africa. In particular, it focuses on many of the reservoirs of northern India and Pakistan in the Indus and Ganges systems, Lake Nasser in the Nile River and Lake Volta in the Volta R iver. Information collated from grey and published literature on the three basins is synthesized and standardized with reference to wider knowledge and up-to-date information on tropical reservoir fisheries. A considerable quantity of data and information were collected on many aspects of the systems of the three reservoirs, including hydrological, biophysical and limnological features, primary production, and fish and fisheries data. This information was condensed and synthesized wi th the aim of providing a baseline against which the ecological changes that have taken place since impoundment can be described and analysed. Efforts are made to explain changes in fish catch in relation to climatic variations, ecological succession and fishing effort. The review shows that biological data and information are generally available. However, as is also common elsewhere, all three cases suffer from the general tendency to isolate and compartmentalize research into separ ate disciplines. Usually, there is very limited cross-disciplinary flow of information or recognition of how results of various disciplines can contribute to a more comprehensive understanding of the behaviour of fish populations, human communities and ecosystems and the productive activities that depend on them. This uniform tendency severely hampered the identification of relevant management actions. A more pragmatic and holistic understanding of reservoir ecosystems is needed in order to guide the choice of indicators and the development of monitoring systems that can inform management of changes in reservoir productivity and, hence, the potential catch. The next step would be to devise a hierarchy of indicators describing the different ecological and economic processes influencing fisheries catches and to organize monitoring systems around those indicators. Only by combining information across sectoral disciplines will it be possible to reach a better unders tanding of the processes that drive fish stocks, fisheries and reservoir productivity.
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