Genetics and Biodiversity

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.

The Phuket Consensus is a declaration on aquaculture development endorsed by participants of the Global Conference on Aquaculture 2010, held in Phuket, Thailand, 22-25 September. The consensus builds on the Bangkok Declaration, which was formulated at the International Conference on Aquaculture in the Third Millennium, held in Bangkok, 20-25 February 2000. The consensus and declaration provide strategic guidance on sustainable development of aquaculture considering social, environmental, technical and economic issues.

Various measures for resource enhancement, conservation and management have been tried in Bangladesh in order to prevent the decline of fisheries resources. The needs of Bangladesh’s poor fisher community to eat what they catch and lack of a legal legislative framework means this situation can only worsen. Hope is offered by new conservation initiatives including habitat restoration, enhancement of depleting fish stocks, transferral of fishing rights and establishment of fish sanctuaries at strategic points.

India produces 4.6 million tonnes of fish annually from its inland water bodies, of which 1 million tonnes originates from enhancement and capture fisheries of open waters. Reservoirs of all categories together produce 94,000 tonnes of fish against a potential of nearly 1 million tonnes. Ownership of inland water bodies vests with the government and the fishing rights of reservoirs and beels are given to individuals, groups and communities according to norms that vary across the states.

Fisheries resources conservation development in Indonesia is based on the protection of endangered and vulnerable freshwater species and maintaining biodiversity integrity, and has been developed with community participation. In order to increase the population and diversification of fish species in inland waters stock enhancement has been carried out since the Dutch occupation when more than 17 species were stocked in inland waters in Indonesia.

Early attempts of fisheries enhancement in Sri Lankan freshwaters were aimed at establishing commercial fisheries. A fisheries enhancement strategy was introduced to village reservoirs of the country in 1980s on a trial basis. Presently, inland fisheries enhancement strategies in Sri Lanka are practiced in seasonal reservoirs and minor perennial reservoirs. The annual CBF production from these reservoirs is about 6 600 tonnes, accounting for about 17 percent of the inland fisheries production.

In this issue:

Relative efficacies of lobsters Panulirus ornatus and P. homarus cultured using pellet feeds and trash fish, Vietnam. Tilapia in Chiang Mai, Thailand. Marketing low-value cultured fish in Bangladesh: An evaluation of value chain. Current practices of rice field eel Monopterus albus culture in Vietnam. Self-help group makes fisherwomen self-relian: A story of success. Small indigenous freshwater fish species of India: Significance, conservation and utilisation. 

In this issue:

The Dedanaw Project, Myanmar. The changing face of women for small-scale aquaculture in Bangladesh. Strengthening capacity of small holders in ASEAN. Carp seed production in Orissa, India. Sustainable mountain paddy-fish farming of the Apatani tribes. The economic impacts of whitespot virus on shrimp production in Iran. Current practices of marine finfish cage culture in China, Indonesia, Thailand and Vietnam. Effects of trash fish on growth and body composition of cobia.

In this issue:

Expert Workshop on Inland Fisheries Resource Enhancement and Conservation in Asia. Reviews in Aquaculture: Special issue on the Use and Exchange of Aquatic Genetic Resources. Dr Ayyappan becomes the Director General of ICAR. CIBA training course - capacity building on entrepreneurship development in coastal aquaculture. Success Stories in Asian Aquaculture - now available for free download! Giant Prawn 2011. Peer reviewed publications. Meetings address climate change impacts on small scale milkfish farmers in the Philippines.

Inland aquatic ecosystems in China have been largely influenced by the large-scale economic activities and over-exploitation of aquatic resources. A wide range of fisheries resource enhancement and conservation activities have been carried out throughout China. This presentation reviews the history and practices and analyses the problems and insufficient in inland fisheries resource enhancement and conservation in China, and finally recommends some suggestions on technology and operation in order to sustain inland fisheries resources.

The beginning of inland fisheries resource stock enhancement in the Republic of Korea dates back to the early 1970’s, when fishing pressure was relatively low, and its development was closely related to the overall trends in the inland fisheries production. The release of hatchery reared juveniles of inland fisheries resources has become an increasingly common practice for stock enhancement and conservation over the last three decades.

Myanmar's inland water resources are still largely in a pristine condition. Fish, consumed in fresh and many processed forms is an important component of the protein intake of the population; consumption is estimated at 43 kg capita per year in 2008-2009. Stock enhancement of inland waters in Myanmar has been conducted since 1967, initiated through a seed replenishing program to the natural water, such rivers, lake, dams even rice fields.