Expert Workshop on Guidelines for Aquaculture Certification. Responsible movement of live food finfish within ASEAN: Cebu Workshop finalises the standard operating procedures. Information and capacity requirements for maintaining aquatic animal biosecurity identified. China-ASEAN efforts to minimise risk of spread of aquatic pathogens. National Centre for Sustainable Aquaculture inaugurated. NACA Better Management Practices program expands in Indonesia. Manual on Application of Molecular Tools in Aquaculture and Inland Fisheries Management. Research Needs to Sustain Asia-Pacific Aquaculture to 2025 and Beyond. Endemic freshwater finfish of Asia: Distribution and conservation status.
The Asia Regional Advisory Group on Aquatic Animal Health meets annually to discuss regional health issues including emerging disease threats. This report includes a review of regional disease status circa 2006, global and regional disease reporting arrangements, global issues and standards, progress in implementation of the the Regional Technical Guidelines on Health management for the Responsible Movement of Live Aquatic Animals, identification and designation of regional aquatic animal health resources and regional and international cooperation.
The use of alien species is a proven means to increase production and value from aquatic ecosystems. However, alien species are now recognised as one of the most significant threats to aquatic biodiversity. There are a range of international mechanisms that have been established to assist countries in meeting international obligations and responsibilities. Implementation is often difficult due to lack of awareness and problems with enforcement. Regional coordination of policies is needed for effective national management.
Peter Edwards writes on rural aquaculture: Recent developments in Chinese inland aquaculture. Reducing feed costs in aquaculture: Is the use of mixed feeding schedules the answer for semi-intensive practices? Seed production technology of ornamental gouramis Colisa fasciata and C. lalia under captive conditions. Marine finfish market information and aquaculture development trends in selected locations in Indonesia and Malaysia. Market analysis of the live reef food fish trade.
International shrimp farming principles welcomed by countries. Discussions on the establishment of a "Mahseer R&D Centre". Microsatellite DNA markers for mahseer are now available. First study on genetic variation of the critically endangered Mekong giant catfish. IMNV found in Asia-Pacific. Thailand and US to jointly install tsunami wave sensors. Co-management in aquaculture explored at APFIC Forum. Virus may control Australia's feral carp problem. A milestone in India's sustainable shrimp farming efforts. Fish introduction in India: Status, challenges and potentials. 8th Asian Fisheries Forum. STREAM Update. Website management training to support Thai Post-tsunami Rehabilitation website.
Resources and biodiversity of seahorses and their need for conservation in India. Captive breeding of pangasid catfish Pangasius pangasius. Establishment of post-tsunami rehabilitation information units in Thailand. Poor farmers culture tilapia intensively in ponds in Central Luzon, Philippines. Simple herbal treatment for treatment of EUS in snakehead. DNA vaccination in health management. The role of immunostimulants. Red tilapia cage culture in central Thailand. Quality improvement of farmed fish in Iranian markets.
MPEDA-NACA sustainable shrimp village demonstration programme. Inter-calibration of white spot syndrome virus (WSSV) PCR laboratories in India. Shrimp health management training. Rotary International/NACA meeting facility up at Koh Yao Noi. Tsunami-affected farmers train in marine cage aquaculture. Marine finfish aquaculture network at the APAN meeting in Singapore. Aquatic animal health policy workshops build consensus in ASEAN nations. Aquaculture Compendium released. Developments in establishing a conservation plan for the Mekong giant catfish. ROUNDTABLE: Exploring south-south cooperation opportunities in sustainable shrimp farming in West Africa, Conakry (Guinea). Technical missions to Cambodia and Lao PDR.
This manual provides guidelines for attaining better practices in culture-based fisheries, an emerging practice in rural areas in the Asian region. It deals with the principles of culture-based fishery practices, primarily based on relatively long-term experiences in Sri Lanka and Vietnam. It deals with the gross factors that are applicable to improving fish yields and therefore revenue; and sustaining culture based fisheries as a development activity in the long-term.
High-health postlarvae a prerequisite for sustainability of the Indian shrimp industry. Broodstock and all-female scampi grow out ponds in south India. Genetically modified fish and potential applications. Rainbow trout farming in hill terraces of Nepal. Sugar industry by-products as plankton boosters and yield enhancers in carp culture. Growth and production of Penaeus monodon in low saline culture systems. Poor households raise prawns for export. Marine fish marketing in Bangladesh.
‘Spawn’ is the name for the young fish about three days old that are available from hatcheries. Sometimes these young fish are also called hatchlings. The spawn of catla, rohu and mrigal is about 6-8 mm long. At this stage, the ‘yolk sac’ is absorbed, the mouth opened and the fins fully developed. Spawn are reared intensively, first to the ‘fry’ size and then to the ‘fingerling’ size. All the three stages are marketed and collectively called ‘seed’.
The “fast fingerling system” can produce advanced fingerlings about two months earlier than they are normally available from fish farms. The farmer uses just one pond for continuous growing until fingerling size is reached, and fewer fish are stocked. A farmer with a small, seasonal pond can produce fingerlings in one month. These can then be sold for a high price because everyone wants fingerlings as early as possible.
The fingerling rearing pond, like the nursery pond, should be free from weeds and predators. Submerged weeds and predators are killed by mahua oilcake, which then acts as a good fertiliser. If there are no weeds, to kill predators and competitors quickly you can just add 100 kg of urea followed 24 hours later by 200 kg of fresh bleaching powder for a 1-ha area of a 1-m deep pond.
In watersheds, medium irrigation projects can be useful for aquaculture even though these water bodies are many times larger than ponds, and are basically built for irrigation or water storage. However, the full potential of these water bodies is not yet realised. Net pens or cages can be used to rear fingerlings in such environments.
It is best to stock advanced fingerlings in large ponds, tanks, and in both small and large reservoirs, since they can better escape predators and competitors. Seasonal ponds, often 0.10-0.15 ha and 1.5-1.8 m deep can be used as rearing ponds for raising advanced fingerlings. Low water levels at the end of the season will make netting and harvesting easy.
Everyone wants advanced fingerlings as early after the rains as possible. They fetch a good price and make marketable fish production possible in seasonal ponds. One way to produce early season advanced fingerlings is to grow them in perennial ponds and store them at high density with minimal feeding for the coming year. Whe such "stunted" fingerlings are stocked into ponds with good feed they grow fast and can be marketed in about 6-8 months.
Common carp is a foreign fish and there are several varieties. The variety used in Western Orissa is the fully scaled carp, which suits the tropical climate. Common carp lives and feeds near the pond bottom and can be grown with the Indian major carps, catla, rohu and mrigal as a 'polyculture' (which means growing many different types of fish together). It can also be grown alone, as a 'monoculture' in rice fields with high dykes that retain water.
Nursery rearing of silver barb Puntius goniotus. Artemia enrichment and biomasss production for larviculture. Seed production of mud crab Scylla serrata in India. Macrobrachium on the southwest coast of India. Fish wastes in urban and suburban markets of Kolkata: Problems and solutions. Groups of poor women farming carps in leased ponds, Bangladesh. Lymphocystis disease and diagnostic methods in China. Mesocosm technology advances grouper aquaculture in northern Australia.
The Asia Regional Advisory Group on Aquatic Animal Health meets annually to discuss regional health issues including emerging disease threats. This report includes a review of regional disease status circa 2005, global and regional disease reporting arrangements, global issues and standards, progress in implementation of the the Regional Technical Guidelines on Health management for the Responsible Movement of Live Aquatic Animals, identification and designation of regional aquatic animal health resources and regional and international cooperation.
Self-recruiting species are defined as aquatic animals that can be harvested from farmer managed aquatic systems without regular stocking. This may include indigenous or introduced, small or larger species. Identified self-recruiting species in the Red River Delta includes exotic species (tilapia), large (snakehead, walking catfish and river catfish) and small (Anabas and Carassius auratus) indigenous fish species and non-fish species (freshwater shrimp and crabs).
