Best management practices for a mangrove-friendly shrimp farming
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This 50-page manual puts together the best practices that SEAFDEC/AQD has developed with the Department of Fisheries in Thailand. These practices include the use of biomanipulators and greenwater system, the use of settling ponds with baffles and biofilters, the use of sludge collectors among others. These practices have been field-tested in Thailand, the Philippines, Myanmar and Viet Nam.
Baliao, D. D., & Tookwinas, S. (2002). Best management practices for a mangrove-friendly shrimp farming. Tigbauan, Iloilo, Philippines: SEAFDEC Aquaculture Department; Bangkok, Thailand: Association of Southeast Asian Nations. http://hdl.handle.net/10862/2146
PublisherAquaculture Department, Southeast Asian Fisheries Development Center; Association of Southeast Asian Nations
SeriesAquaculture extension manual; No. 35
Feeding; Shrimp culture; Pond culture; Recirculating systems; Wastewater aquaculture; Prawn culture; Ponds; Mangroves; Aquaculture development; Aquaculture techniques; Aquaculture systems; Crustacean culture; Environmental impact; Brackishwater environment; Ecosystems; Water pollution; Water quality; Fishery management; South East Asia; Prawns and shrimps; Waste management
Formatiii, 50 p. : col. ill.
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Conference paperMN Kutty - In TU Bagarinao & EEC Flores (Eds.), Towards sustainable aquaculture in Southeast Asia and Japan: Proceedings of the Seminar-Workshop on Aquaculture Development in Southeast Asia, Iloilo City, Philippines, 26-28 July, 1994, 1995 - Aquaculture Department, Southeast Asian Fisheries Development CenterCountries in Southeast Asia still display a vivid spectrum of developmental stages in aquaculture, the most and the least developed seen in contiguous areas despite geographic similarities. The Network of Aquaculture Centres in Asia-Pacific is actively involved in the development of aquaculture in the region, approaching it from a holistic viewpoint by integrating issues in environment, resource management, and socioeconomics into its program of work. Constraints related to site, inputs, and markets have assumed more importance in many countries, but transfer of technology is still the problem in about half the region. More intense culture systems, especially shrimp pond and fish cages, have resulted in serious problems of self-pollution, which affects the industry's own sustainability. A recent FAO-NACA regional study indicated that non-aquaculture sectors such as industries, agriculture, urbanization, and tourism have serious impacts on aquaculture, but there is little evidence that aquaculture is seriously affecting non-aquaculture sectors. Sustainability of aquaculture has to be considered along with economic and environmental sustainability. It appears from examples in the region that aquaculture that seriously damages the environment is economically unsustainable. Various constraints that impinge on the sustainability of aquaculture in the region are discussed.
Conference paperJP Altamirano, N Salayo, H Kurokura, H Fushimi & S Ishikawa - In K Hajime, T Iwata, Y Theparoonrat, N Manajit & VT Sulit (Eds.), Consolidating the Strategies for Fishery Resources Enhancement in Southeast Asia. Proceedings of the Symposium … Strategy for Fisheries Resources Enhancement in the Southeast Asian Region, Pattaya, Thailand, 27-30 July 2015, 2016 - Training Department, Southeast Asian Fisheries Development CenterIn central Philippines, the Aquaculture Department of the Southeast Asian Fisheries Development Center (SEAFDEC/AQD), with strong collaboration and support from the Research Institute for Humanity and Nature (RIHN) of Kyoto, Japan, has been looking into the stock enhancement of tiger shrimp Penaeus monodon in the New Washington Estuary (NWE), province of Aklan, central Philippines. The NWE was a productive fishing ground that has been suffering from degenerating brackishwater fisheries and estuarine environment. Average daily catch declined from 24 kg in 1970s to only 0.7 kg at present. Shrimp fisheries, the most important livelihood, declined in quality and quantity. Tiger shrimps were abundant in catch until the early 1990s when these were observed to decline in volume, replaced by smaller and cheaper species. This was coincidental with the rapid decline in mangrove cover for ponds and huge increase in fishing pressure. It is clear that crucial interventions are required to restore the tiger shrimp fisheries in the NWE in order to increase income of local fishers, while promoting reduction of fishing gears and restoration of mangroves. Stock enhancement of tiger shrimps shows good potential in answering these needs. Site-specific assessments were conducted to evaluate prospects of shrimp stock enhancement in NWE. Conservative simulations of capture of released stocks showed that fishers can increase income by 300%. To decrease fishing pressure in the area, number of gears per fisher may have to be reduced but shrimp catches will be relatively high-priced. Comparative experiments using aquaculture techniques were done to identify strategies especially in the delicate intermediate acclimation rearing. Aquaculture protocols like those for pond preparation were also adapted to be used in a mangrove pen nursery rearing system for shrimps. Supplemental feeding with formulated feeds increased carrying capacity of the culture area, while enhancing growth and survival of stocks. Culture experiments showed that shrimps grow to 0.5 g within 1 mo and >1g in 2 mo. High stocking density of 40-60 shrimps m-2 can be used for <2 mo rearing in a mangrove pen. Release experiments showed that 60-d old shrimps have higher chances of survival when released in the estuaries. With strong support from local communities, government and other sectors, together with effective management and law enforcement, aquaculture-based stock enhancement of tiger shrimps can be a viable intervention to restore livelihood and promote estuarine rehabilitation in the NWE.
Conference paperKG Corre - In JV Juario & LV Benitez (Eds.), Seminar on Aquaculture Development in Southeast Asia, 8-12 September 1987, Iloilo City, Philippines, 1988 - Aquaculture Department, Southeast Asian Fisheries Development CenterThe results of research on nursery and grow-out rearing of prawn conducted by the SEAFDEC Aquaculture Department for over a decade are reviewed. Different rearing facilities designed to accommodate hatchery-produced prawn fry are presented with corresponding data on growth, survival and production. Studies on stocking density, fertilization/natural food production, water management, feeds and feeding schemes and harvest/post-harvest handling are evaluated and viable technology identified. Diseases, pests and predators and other factors considered as production constraints are also mentioned. The success in hatchery operation for prawn coupled by the gradual emergence of nursery and grow-out rearing technology have triggered off a technology-dependent prawn industry. When SEAFDEC AQD was established in 1973, there were very few commercial prawn monoculture ventures in the country. Prawn pond production was mostly an incidental crop in milkfish culture. At present, various prawn grow-out techniques ranging from extensive, semi-intensive and intensive culture systems are in practice. SEAFDEC AQD focused its research on the extensive and semi-intensive culture systems which are within the reach of most farmers in contrast to the intensive system that is highly capital-intensive. There have been much work done in nursery and grow-out operations, but much remains to be done in research, among which are the development of nutritionally-efficient and low-cost feed, control of diseases, etc.