Benefits derived from selective breeding have been demonstrated in livestock and in some fish species, but by contrast, there have been few systematic selection programs reported for shrimps. Improving growth rate has been identified as the most important trait in the breeding objective for cultured shrimp species. In the present study we analyzed a four generation data set from a fully pedigreed selective breeding program for giant freshwater prawn (GFP in Vietnam. We estimated phenotypic and genetic parameters for body and carcass weight traits.
Early efforts to apply the concept of fisheries co-management in Southeast Asia focused primarily on building the effectiveness of local management institutions and advocating the merits of the approach so that it would be applied in new sites, while gradually learning and adapting to a range of obstacles in practice. Today, with co-management widely embraced by the research community and adopted as policy by an increasing number of governments, a second-generation perspective has emerged.
This report is an account of a cross-country study that covered Vietnam, Indonesia and the Philippines. Covering four sites (one each in Indonesia and Vietnam) and two sites in the Philippines, the study documented the impacts of three climate hazards affecting coastal communities, namely typhoon/flooding, coastal erosion and saltwater intrusion. It also analyzed planned adaptation options, which communities and local governments can implement, as well as autonomous responses of households to protect and insure themselves from these hazards.
An examination is made of the activities of the research project "Rural women in fishing communities" in Indonesia, Philippines, Sri Lanka, and Vietnam. The project sought to develop a model of participatory data collection onwomen's role and activities in fishing communities as a basis for planning, monitoring and evaluation and also to help women improve their living and working conditions by establishing pilot action projects to provide inputs and services to help meet their basic needs.
Fish production in Vietnam increased rapidly from 420 000 t in 1981 to 1 130 680 t in 1998. Likewise, there was an expansion in the number of motorized fishing boats from 29 584 units with an average horsepower (HP) of 19.8 boat-1 in 1981 to 71 800 units with an average HP of 26.2 in 1998. In 1995, fish production was valued at VN$2 475 billion (US$0.02 billion at 1 US$ = 11 041 VN$; source: oanda. com).
South-East Asia has traditionally been the global centre of production of tropical sea cucumbers for Chinese markets. Early research into culture methods took place outside this region, notably in India, the Pacific region and China. However, recent investment in Holothuria scabra (sandfish) culture has led to some significant advances within this region. The Philippines and Vietnam have been at the forefront of recent efforts, with involvement from substantial national programs and local institutions as well as international donors and scientific organisations.
We use global value chain (GVC) theory to understand governance of Vietnam’s shrimp farming industry. We describe this GVC as buyer-driven with important food safety standards imposed by governments of importing countries and new certification systems promoted by nongovernmental organizations (NGOs). Governance relations are clear between governments in importing countries and Vietnam, and between importers and NGOs. Governance relations become more fragmented further down the chain where large numbers of small-scale producers and traders operate.
Climate change with its attendant geophysical hazards is well studied. A great deal of attention has gone into analyzing climate change impacts as well as searching out possible mitigating adaptive strategies. These matters are very real concerns, especially for coastal communities. Such communities are often the most vulnerable to climate change, since their citizens frequently live in abject poverty and have limited capacity to adapt to geophysical hazards.
This paper provides a comparative analysis of the social and cultural dimensions of fish hatchery development in Vietnam and Thailand. Two detailed case studies highlight the importance of a variety of culturally mediated, informal interpersonal relationships in facilitating the establishment of new hatchery enterprises. The analysis reveals that in both Vietnam and Thailand, informal relationships are extremely effective conduits for the transfer of productive technologies from public institutions to private entrepreneurs and for the subsequent development of private enterprises.
Wastewater is reused and treated in four main types of farming in Vietnam: fish culture in 200 ha; rotation of rice and fish culture in 400 ha; land vegetables and aquatic vegetables.