Crabs and lobsters

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:

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.

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.

Wild-harvest fisheries for live reef fish are largely over-exploited or unsustainable. Sustainable aquaculture – such as that of groupers – is one option for meeting increasing demand for reef fish as well as potentially maintaining livelihoods of coastal communities. This report draws upon secondary literature, media sources and four diverse case studies from at-risk reef fisheries, to frame a strategy for encouraging sustainable aquaculture as an alternative to destructive fishing practices. It was commissioned by the APEC Secretariat.

Sulawesi has the largest coral reef area in Indonesia, at the epicenter of worldwide marine biodiversity, but is one of the areas most threatened in Southeast Asia by destructive fishing practices. This case study reviews the potential for aquaculture to provide alternative livelihoods for fishers within the context of an integrated, community-based coastal management plan with involvement of local communities empowered to control and steward their resources so that they can conserve and utilise them sustainably.

This case study describes the present status and trends, and provides recommendations for the improvement of aquatic resources management within Hon Mun Marine Protected Area (MPA), Nha Trang Bay, Khanh Hoa Province, Vietnam. The case study also evaluates options for improving the livelihoods of local villagers through the development of ecologically sustainable aquaculture and fisheries, which include diversification following careful selection and trial of appropriate culture species, and application of “best practice” culture methods.

To review mud crab aquaculture in Australia and Southeast Asia, ACIAR funded a scoping study, followed by a workshop to review the study and discuss status and problems in different regions of Australia and Southeast Asia. The primary conclusion from the scoping study, verified by workshop discussion, was that the substantial crab farming operations which exist throughout Southeast Asia are still mainly based on wild caught crablets.

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.

The Manual of Procedures for the Implementation of the Asia Regional Technical Guidelines on Health Management for the Responsible Movement of Live Aquatic Animals provides background material and detailed technical procedures to assist countries and territories in the Asia Region in implementing the Asia Regional Technical Guidelines on Health Management for the Responsible Movement of Live Aquatic Animals. The Technical Guidelines were initiated due to increased recognition that disease emergence is often linked to live aquatic animal movements.

The Asia Regional Technical Guidelines on Health Management for the Responsible Movement of Live Aquatic Animals and their associated implementation plan, the Beijing Consensus and Implementation Strategy provide expert guidance for national and regional efforts in reducing the risks of disease due to trans-boundary movement of live aquatic animals. The Technical Guidelines were initiated due to increased recognition that disease emergence is often linked to live aquatic animal movements and causes significant socio-economic losses.

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.

In this issue:

Peri-urban aquaculture in Kolkata. Diffusion and adoption of shrimp farming technologies. Aquaculture education in India. Information system on fish germplasm resources in China. Freshwater crustacean aquaculture in China. The role of macronutrients. Innovations by Bengal farmers. Scientific guidelines for freshwater prawn farmers in India. Status of mariculture in Indonesia. Use of probiotics in larval rearing. Problems in shrimp culture during the wet season.

In this issue:

Aquaculture for poverty alleviation and food security. Shrimp pond waste management. Properties of liming materials. Seed production of mud crab Scylla spp. The dilemmas of strain selection. Seed production of the crucifix crab Charybdis feriatus. A general approach to disease treatment and control. Breeding and seed production of mangrove snapper Lutjanus argentimaculatus. Responsible use of antibiotics in shrimp farming. Health management for cultured marine fishes. Molecular methods for rapid detection of pathogens in seafood.

The Asia Regional Advisory Group on Aquatic Animal Health meets annually to discuss regional disease issues including emerging disease threats. The group was established by the Governing Council of NACA to provide advice to member governments in the Asia-Pacific region. This collection comprises the reports of the annual meetings of the group. The reports are a rich source of information concerning the current disease status of the region and new or emerging diseases of aquatic animals.