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.

These guidelines provide advice on producing fish seed of the Indian major carps in hapas within ponds to improve survival.

In this issue:

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).

In this issue:

Small-scale pond culture in Bangladesh. Issues and challenges in community-based aquaculture. Aquaculture as an action programme building confidence and self-worth. Transforming policy recommendations into pro-poor service provision. Grow out of spotted Babylon to marketable size in polyculture with seabass. Influence of economic conditions and global shocks on grouper markets. Status of cobia hatchery technology in Vietnam. Organic shrimp raceway system. Macrobrachium rosenbergii in Vembanad Lake. Management of monogenean parasites.

In this issue:

Experts gather to save giant catfish. Workshops on dissemination of better practice models for culture-based fisheries. Dr Chris Baldock, 1947-2005. MAHSEER 2006. MOU signing on conservation of Mahseer in Malaysia and Indonesia. Application of molecular genetics in aquaculture and inland fisheries management. New president of Iran Fisheries Organization. Workshop on the fishery management tool 'EnhanceFish'. Regional Mariculture Development Workshop in China, March 2006. Invitation to apply for position of Director General of NACA. MPEDA expands program on shrimp farmer clubs.

This is the report of an inception workshop for the Mekong Giant Catfish Working Group. The Mekong giant catfish Pangasianodon gigas is listed as critically endangered in the 2003 IUCN Red List. The purpose of the workshop was to exchange information on the current state of the Mekong giant catfish and the relevant conservation and research activities of key organisations, and to establish a joint planning process aimed at developing an overarching conservation strategy for the Mekong giant catfish.

In this issue:

Asian Development Bank study on aquaculture and poverty. The consequences of converting to organic shrimp farming. Recycling water and making money with Artemia. Advances in the seed production of cobia Rachycentron canadum in Vietnam. Australian success with barramundi cod Cromileptes altivelis. Recent grouper breeding developments in Thailand. Application of probiotics in rotifer production systems. Contract hatchery systems. Rainbow trout culture in Iran. Spotted babylon Babylonia areolata growout in earthern ponds.

This document is the technical proceedings of the Asia Regional Scoping Workshop on “Primary Aquatic Animal Health Care in Rural, Small-scale, Aquaculture Development,” held in Dhaka, Bangladesh from 27 - 30 September 1999. The objectives of the workshop were  to review information on socio-economic impacts, risks of disease incursions and health management strategies in rural, small-scale aquaculture and enhanced fisheries programmes; and to identify potential interventions for their better health management and appropriate followup actions.

The Asia Diagnostic Guide to Aquatic Animal Diseases or ‘Asia Diagnostic Guide’ is a comprehensive diagnostic guide in support of the implementation of the Asia Regional Technical Guidelines on Health Management for the Responsible Movement of Live Aquatic Animals. It was developed from technical contributions of members of the Regional Working Group and Technical Support Services and other aquatic animal health scientists in the region and outside who supported the Asia-Pacific Regional Aquatic Animal Health Management Programme.

The most comprehensive aquatic disease guide ever published in the region. It covers economically significant diseases of molluscs, fish and crustaceans. Contains information on laboratory and diagnostic techniques, causative agents and distribution, host range, clinical aspects, screening methods, diagnostic procedures, modes of transmission, control measures. Includes contact details for technical support services throughout the region and national health coordinators.

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 2004, 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.

In this issue:

Freshwater prawn culture in China and its market prospects. Demise of wastewater-fed duckweed-based aquaculture in Bangladesh. Freshwater finfish biodiversity - an Asian perspective. Her farm is destroyed, how can we help? Women oyster vendors in Eastern Thailand. Farm-level feeds and feeding practices for marine finfish. ACIAR grouper grow-out feeds and CSIRO research. Feed development and application for juvenile grouper. Grouper growout feeds. Silver pomfret culture technology.

Hemorrhagic disease of grass carp is a serious viral disease affecting grass carp fingerlings. The disease has the potential to spread and cause serious economic loss in countries of the region. This disease card is developed to raise awareness and support surveillance efforts of countries in the region.

The workshop Indigenous Participation in Aquaculture – the Pacific Experience was held as a day-and-a-half session in the Australasian Aquaculture 2004, Sydney, 27–28 September 2004. The workshop promoted exchange of information and experiences between researchers, government representatives and industry involved in aquaculture development in the Pacific. The workshop recognised the increasing interest in aquaculture as an industry that can provide benefits for indigenous communities in Australia as well as the Pacific Islands.