This article compares the use of chemical and biological amendments in shrimp farming in Asia and the Americas. The information comes mainly from the author’s experience in Thailand and Ecuador, as well as from the literature. The amendments are discussed according to three major categories: (1) water and soil quality management products, (2) biocides, and (3) feed additives. Certain agents, while necessary to successful shrimp farming, should be used only when needed and in a safe and responsible manner. 

This case study was carried out in the North and North Central of Vietnam. The study was based on discussions and structured interviews with farmers, extension officers and other stakeholders. The objectives of the study were to describe the current coastal aquaculture practises, the impact on the livelihood of the coastal inhabitants and on the environment, to discuss the current situation in relation to the Code of Conduct for Responsible Fisheries and identify issues where BMPs should be introduced.

This case study documents the success and lessons learnt from local co-management approaches involving farmers associations and local government in Thailand. The case study also shows the linkages and relationships of institutions operating at different levels of administration from farm to national levels and their effect on management. The case study provides an analysis of institutional supports and mechanisms needed for successful shrimp farming management via case studies.

The code development work was undertaken by the NARA in collaboration with the NAQDA, MFNWP, PEA, Shrimp Farmers and Exporters Associations, Shrimp Breeders Association, feed suppliers and manufacturers. This was developed mainly conducting consultations with different stakeholders of the industry and discussed at a forum with the representation of all stakeholders to reach consensus. The code includes technical specifications for the siting, design, construction and operation of shrimp hatcheries and farms.

The present case studies concentrated on three sites, Kandaleru in Andhra Pradesh, Dhigirpar in West Bengal and Brahmagiri in Orissa. The three sites are markedly differentbut have a common feature that all three mainly are concerned with small farmers groupings. Earlier shrimp farming failures owing to the overexploitation of the ecosystem, by overstocking and consequent high inputs, resulting in degradation of the environment, diseases and eventual collapse, have alerted all shrimp farm groups to be wary.

This case study review shrimp aquaculture development in Ecuador. The prevailing farming systems and practices are described. Most farms are extensive or semi-intensive and the industry is shifting to hatchery-reared PL rather than wild due to unpredictability in wild PL supply and disease outbreaks. A survey of water quality intake and outfall from farms is reported on with suggestions for farm design to reduce nutrient load in outfall is discussed. Health issues and mangrove degredation are discussed. 

The goal of this project was to optimise the economic yield from mixed shrimp aquaculture-mangrove forestry farming systems in Ca Mau Province, Vietnam, in a sustainable manner. Specific objectives were to investigate factors controlling the yields of shrimp and wood from shrimp farming-mangrove systems, experiment with shrimp pond and mangrove forest management to evaluate different culture options, identify improved practices and assist government to transfer the results of the project to the wider coastal farming community.

This article describes the international Consortium Programme on Shrimp Farming and the Environment, which was formed based on the recommendations of the World Bank review on shrimp aquaculture and the environment (1998), a 1999 NACA/WWF meeting in Bangkok, Thailand on shrimp management practices, and an FAO Bangkok technical consultation on policies for sustainable shrimp aquaculture (12/1997). The article was prepared for publication in InterCoast Issue #39, Cross Portfolio Learning for Enhancing Integrated Coastal Management.

This collection of publications originates from the International Consortium Program on Shrimp Farming and the Environment, which was implemented by the World Bank, the Network of Aquaculture Centres in Asia-Pacific (NACA), the World Wildlife Fund (WWF), the Food and Agriculture Organization of the United Nations (FAO), and the United Nations Environment Programme (UNEP). The consortium supported 35 complementary case studies prepared by more than 100 researchers in more than 20 shrimp farming countries.

In this issue:

Ornamental fish farming in India. Tilapia for Indian aquaculture? Peri-urban food production in southeast Asia. Socio-economic consequences of shrimp farming in Andhra Pradesh. Breeding techniques for golden arowana Scleropages formosus. Captive breeding of peacock eel Macrognathus aculeatus. Substrate-based aquaculture systems. Extension in shrimp health management - experiences from India. Treatment of disease in freshwater shrimps and crabs in China. Larval rearing techniques for humpback grouper Cromileptes altivelis.