Investigation of diseases and development of strategies for improved health management of Thai pangas (Pangasius sutchi) cultured in rural ponds in Mymensingh district

Thai pangas, Pangasius sutchi (Syn. P. hypophthahnus) is one of the important species in aquaculture of Bangladesh. Over the last few years, spectacular development of has been taken place in Thai pangas farming in Mymensingh district. Due to quick profit, peoples are converting their rice field into pangas farm. However, when the expansion of pangas farming is almost in its peak, farmers are facing serious disease problems and mortality in their fish. Therefore, to examine health and disease status of Thai pangas, clinical histopathological and bacteriological techniques were employed.

Exclusive economic zones and the management of fisheries in the South China Sea.

The 1982 United Nations Convention on the Law of the Sea (LOSC), with the provisions for defining an Exclusive Economic Zone (EEZ), is the international agreement that has had the greatest influence on the structure of fisheries policies in national and international arenas. It had the profound effect of increasing the contribution of fisheries to the national gross domestic product or GDP. It brought about a redistribution of benefits from fishing from distant water fishing fleets to the coastal states. Investments flowed in to the fisheries sector.

Developing a consultative Bayesian model for integrated management of aquatic resources: an inland coastal zone case study.

This article presents the methodological aspects of the development of a decision support system (DSS) based on Bayesian networks and aiming at assisting in the management of water-dependent resources (rice, fish, shrimp and crab). The principles of Bayesian networks are introduced, then the steps of model development are detailed and illustrated by the BayFish model being developed in the inland coastal zone of Bac Lieu Province (Vietnam). The particular feature of this DSS is that it is based on the contribution of local stakeholders.

Pioneering fish genetic resource management and seed dissemination programmes for Africa: adapting principles of selective breeding to the improvement of aquaculture in the Volta Basin and surrounding areas

This document represents the report and contributed papers from the workshop Pioneering Fish Genetic Resource Management and Seed Dissemination Programmes for Africa: Adapting principles of selective breeding to the improvement of aquaculture in the Volta Basin, convened in Accra, Ghana 27-30 March 2007.

Aquaculture development 3. Genetic resource management

These Technical Guidelines have been developed to support sections of the FAO’s Code of Conduct for Responsible Fisheries on aspects of genetic resource management in aquaculture. Guidance is provided on broodstock management and domestication, genetic improvement programmes, dissemination programmes for genetically improved fish, economic considerations in genetic improvement programmes, risk assessment and monitoring, culture based fisheries, conservation of fish genetic resources, gene banks, a precautionary approach and public relations.

Cultured fish: integrative biology and management of domestication and interactions with wild fish

Fish aquaculture for commodity production, fisheries enhancement and conservation is expanding rapidly, with many cultured species undergoing inadvertent or controlled domestication. Cultured fish are frequently released, accidentally and deliberately, into natural environments where they may survive well and impact on wild fish populations through ecological, genetic, and technical interactions.

Implications for equity and management

The economic efficiency and distribution of benefits from the fisheries of San Miguel Bay, Philippines are examined in this paper. The total annual value of catch from the Bay in 1980-1981 was estimated to be US6 million. Small trawlers, which represented only 3% of the fishing units and employed 7% of the labor force were found to earn the largest shares of total catch value and 50% of the P3 million pure profits, or resource rents. The open access equilibrium of this fishery has not been reached but further increases in fishing effort would reduce economic efficiency and resource rents.

Assessing forest canopy closure in a geospatial medium to address management concerns for tropical islands: Southeast Asia

The present study outlines an approach to classify forest density and to estimate canopy closure of the forest of the Andaman and Nicobar archipelago. The vector layers generated for the study area using satellite data was validated with the field knowledge of the surveyed ground control points. The framework developed would serve as a significant measure to forest health and evaluate management concerns whilst addressing issues such as gap identification, conservation prioritisation and disaster management -- principally to the post-tsunami assessment and analysis.

Economic seaweed resources and their management in eastern Indonesia.

The article focuses on the economic seaweed resources and production in eastern Indonesia and how the fishers in the country adjust their system in managing the resources. Particular attention is given to seaweed which can be used as materials for producing carageenan and agar; most carrageenophyte species explored in eastern Indonesia belong to the genera Kappaphycus and Eucheuma; and seaweeds that produce agar belong to families Gelidiaceae and Gracilariaceae.

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