The Genetics and Biodiversity Programme supports member states to improve scientific knowledge of aquatic genetic resources and to guide strategic planning in their management. The programme addresses both the conservation aspects of genetic resources and their responsible usage in aquaculture to minimise impacts on biodiversity and wild strains and to assist members to meet their obligations under international treaties.
The programme promotes international linkages between member states, capacity building, research programs to develop improved strains of finfish and shellfish, genetic characterisation of existing strains, adoption of new genetic tools and technologies and consortia regional programmes to address common issues, species and strains of value from conservation and/or aquaculture perspectives.
Key activities of the programme include:
Building capacity in aquatic genetic resource management and application of new molecular technologies, tools and strategies.
Characterising aquatic genetic resources to discover species, stocks and valuable genomic resources.
Facilitating national and regional programs for domestication, genetic improvement and conservation.
Applying conservation aquaculture models to support diversification, fishery enhancement and in-situ conservation of indigenous fish species.
Facilitating responsible exchange of germplasm, safe propagation and access-benefit sharing.
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.
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.
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.
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.