In this issue:

Culture-based fisheries exchange visit from Lao to Cambodia. National Fish Day, Cambodia. WAS Adelaide: Special Session on Regional Cooperation for Improved Biosecurity. Inbreeding and disease in tropical shrimp aquaculture: a reappraisal and caution. Shrimp EMS/AHPND Special Session at DAA9. 2nd International Symposium on Aquaculture and Fisheries Education. Report on Sustainable Fisheries and Aquaculture for Food Security and Nutrition.

The disease crisis facing shrimp aquaculture may be propelled, in part, by an interaction between management practices that cause inbreeding, and the amplification by inbreeding of susceptibility to disease and environmental stresses. The study describes and numerically simulates gene flow from Penaeus (Litopenaeus) vannamei hatcheries that employ a ‘Breeder Lock’ to discourage use of their PL as breeders, through ‘copy hatcheries’ that breed the locked PL, to inbred shrimp in farm ponds. 

Shrimp aquaculture in tropical regions is facing a disease-induced catastrophe of lost production. There is reason to believe that current (poor) broodstock management practices may induce genetic erosion that increases susceptibility to disease and vulnerability to epizootics. The basic tenet for this consultation is that an important aggravating factor in the disease crisis is an agro-economic system that locks shrimp breeders, hatcheries and farmers into behaviour that induces high levels of inbreeding.

Shrimp aquaculture in tropical regions is facing a disease-induced catastrophe of lost production. There is reason to believe that current broodstock management practices may induce genetic erosion that increases susceptibility to disease and vulnerability to epizootics. The basic tenet for this Expert Consultation is that an important aggravating factor in the disease crisis is an agro-economic system that locks shrimp breeders, hatcheries and farmers into behaviour that induces high levels of inbreeding.

Artisanal shrimp aquaculture is in a disease-induced crisis of lost production, into which are falling farms, gene pools adapted to farms, and small-hold farming as a way of life. Rising levels of inbreeding and an exceptionally strong, positive relationship between inbreeding and disease which is described here. The root cause is social: a nexus of human behavior in which breeders protect their intellectual property by generating inbreeding and farmers suffer the consequences.

In this issue:

A second trip to Hubei Province, central China. Sea cage growout of cobia Rachycentron canadum in the Gulf of Mannar. Culture of small indigenous fish species in polyculture with Indian major carps and high value crops along pond dykes. Study on sperm chilled storage of common carp Cyprinus carpio in Vietnam. Culture-based fisheries exchanges between Lao PDR and Cambodia. Culprit behind massive shrimp die-offs in Asia unmasked.

In this issue:

Culture-based fisheries exchanges between Lao PDR and Cambodia. Culprit behind massive shrimp die-offs in Asia unmasked. Presentations from the final technical consultation on EMS/AHPNS of shrimp available for download. Aquaculture certification workshop held in Viet Nam. Aquaculture in a genetic plunge towards extinction? NACA implements World Bank training program on Good Aquaculture Practices. Study tour on aquaculture and wetland management for delegation from Assam, India. Koh Yao Noi Tree Bank and mangrove replanting continues. Consistent fish names key to consumer confidence. We are hiring! Request for contributions: Global Advances in Ecology and Management of Golden Apple Snails (2nd edition).

Artisanal shrimp aquaculture is in a disease-induced crisis of lost production. The immediate cause is biological: rising levels of inbreeding and a strong, positive relationship between inbreeding and disease. The root cause is social: a nexus of human behavior in which breeders protect their intellectual property by generating inbreeding, local hatcheries sell copied, inbred shrimp, and farmers suffer the consequences.

In this issue:

Workshop on mainstreaming gender in NACA. Fish Farmer Field School: Towards healthier milkfish / shrimp polyculture and fish farmer empowerment in South Sulawesi. A success story of Maa Tarini Self Help Group Ornamental Fish Unity, India. Use of lactic acid bacteria in fish farming. AFSPAN field surveys underway. Anti-viral treatment for healthier black tiger prawns. Jungle perch on the comeback trail. Nursery management of grouper manual. Hatchery management of tiger group manual.

The Atlantic salmon, tilapia and whiteleg shrimp are the most successful aquaculture species. Fundamental to this success has been the success of genetic improvement of the broodstock. Selective breeding has taken a sustained long-term effort. Genetic gains in shrimp have contributed to annual gains in pond efficiency, translating into lower costs of energy, labour, capital and feed costs, combined with higher annual yields.

In this issue:

11th meeting of the Asia Regional Advisory Group on Aquatic Animal Health. Aquaculture community mourns Prof. M.C. Nandeesha. Got a story for Aquaculture Asia Magazine? AusAID funded project on Institutional Support for Development of Mariculture in South East Sulawesi commences. Regional training course on broodstock management in aquaculture, Vietnam 27 May - 1 June 2013. Video recordings from workshop on sustainable intensification of aquaculture released!

In this issue:

American Soybean Association field trials in China. AusAID funded project on Institutional Support for Development of Mariculture in South East Sulawesi. Income enhancement of farmers through intensive fish culture in polythene lined farm ponds. Consultation on Sustainable Intensification of Aquaculture in the Asia-Pacific: Towards a new paradigm. Taxonomic status of mahseer fishes in north-eastern India: A report on the recent DNA barcoding studies. Biology and aquaculture of the rohu, Labeo rohita.

The Global Conference on Aquaculture 2010 reviewed the present status and trends in aquaculture development, addressed emerging issues relevant to aquaculture development, assessed opportunities and challenges for future aquaculture development and built consensus on advancing aquaculture as a global, sustainable and competitive food production sector. This volume provides information on how aquaculture could be mobilized to alleviate global poverty and improve food and nutrition security in the coming decades.

In this issue:

Shrimp farming in Andhra Pradesh, India. Small indigenous freshwater fish species in village community ponds to ensure nutritional security of rural poor. Postlarvae culture and technical status of whiteleg shrimp Penaeus vannamei hatcheries, Vietnam. Jatropha meal as a promising plant protein source for aquaculture feeds. Use of soybean meal in cobia diets. Capture based aquaculture of spiny lobster Panulirus polyphagus in open sea cages. Institutional linkage helping rural women gain employment.

In this issue:

Putting Gender on the Programme of NACA. Proceedings of the Global Conference on Aquaculture 2010 available for download. Peter Edwards to mentor the new Sustainable Farming Systems Programme. International Fisheries Symposium, 6-8 December, Can Tho, Vietnam. Broodstock management training course launched by NACA and UNU-FTP.

In this issue:

A visit to Vientianne, Lao PDR. Development of captive broodstock of giant river prawn Macrobrachium rosenbergii. Alien introduction and its impact on native fisheries and aquatic bioiversity of West Bengal, India. Ecological impacts of exotic fish species in India. Farm-made feeds support good growth and survivial of the humpback grouper. An easy way to hold live fish. Litopenaeus vannamei introduction: Sound management or expediency? Newsletter and more.

This regional review study is an effort to promote improved inland fisheries management under the Code of Conduct for Responsible Fisheries. It covers ten Asian countries with significant inland capture fisheries, namely Bangladesh, China, India, Indonesia, the Republic of Korea, Myanmar, Nepal, Sri Lanka, Thailand and Viet Nam. The papers were presented and discussed at a regional workshop held from 8-11 February 2010 in Pattaya, Thailand. Audio recordings of the presentations are also available for download.

Aquaculture is today considered the only viable option for meeting the increasing future demand for fish and seafood products. There are concerns that unconstrained sectoral expansion and intensification, coupled with its ecological and social impacts, globalisation and fluctuation of markets and resources, climate change may have undesirable impacts on the resilience of social-ecological systems. Aquaculture makes demands on, but also can provide a range of ecosystem services.

Aquaculture is likely to benefit greatly from the application of appropriate genetic and reproduction biotechnologies to increase food production, but the application of established genetic improvement methods in aquaculture is much less than in agriculture. The world’s wealth of aquatic biodiversity at the genetic, species and ecosystem levels provides great potential for the aquaculture sector to enhance its contribution to food security and meet future challenges in feeding a growing human population.

The main objective of this review is to understand the status of aquaculture-fisheries interactions associated with the biological, technological, social, economic, environmental and other aspects of aquaculture development. It will also examine how the interactions are addressed under the EAA. It cover aspects of scoping, prioritising, management tools and plans within the context of the elements of ecosystem resilience, social and economic issues and the integration of aquaculture with other sectors.