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.

Community-based adaptive resource management in Solomon Islands: lessons learned

This brief presents a review of lessons learned and good practices in developing management plans within the context of community based resource management (CBRM) in Solomon Islands. The lessons are based on work done by the WorldFish Center, the Foundation of the Peoples of the South Pacific International (FSPI) and the Solomon Islands Ministry of Fisheries and Marine Resources.

Implementing resilience management: lessons from fishing communities in the Niger basin

Small inland fisheries are important to the livelihoods of the poor in Africa, contributing both food security and income to millions of households living near freshwater lakes, reservoirs, rivers and floodplains. These inland fisheries have complex exploitation systems with large numbers of fishers operating in the informal sector. These systems are highly vulnerable to external disturbance, making them extremely difficult to assess and manage.

Improved fisheries productivity and management in tropical reservoirs

The objective of the project was to contribute to the current research on reservoirs enhancement fisheries in tropical countries through the implementation of a series of action-research activities implemented in two small reservoirs in the Indo-Gangetic basin in India, and two very large reservoirs in Africa, the Lake Nasser (Egypt), and the Volta Lake (Ghana). Socio-institutional analyses were also conducted in these reservoirs to improve our knowledge regarding some of the main social processes that influence reservoir productivity.

Broodstock management status and some suggestions to control negative selection and inbreeding in hatchery stocks in Bangladesh

The freshwater river systems and floodplains of Bangladesh are the breeding grounds for 13 endemic species of carps and barbs and a large number of other fish species, including a number of exotic carps and other species that have been introduced for aquaculture. Since 1967, breeding of endemic and exotic aquaculture species for seed producton through hypophysation techniques has become a common practice.

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