Genetics and Biodiversity

This manual provides practical advice on good management practices for sustainable freshwater prawn (scampi) farming in India. The manual covers general principles of sustainable farming, relevant legal issues including for hatcheries, land and water use, impact on natural habitats, hatchery, nursery and growout management, and environmental and social responsibility. The manual was developed via a multi-stakeholder consultation held at the Head Office of the National Centre for Sustainable Aquaculture (NaCSA), Kakinada, 6-7 December 2007.

The Project 'Artificial propagation of empurau, Tor tambroides and semah, Tor douronensis, two species of commercial and conservation value to Sarawak, Malaysia' successfully achieved captive breeding and larval to fingerling rearing. An enhancement strategy for the long-term management of semah and empurau broodstock, and conservation of wild stocks, based on genetic findings is discussed. Guidelines on best husbandry management practices to ensure a supply of physically and genetically healthy quality seed are provided.

IDRC and NACA convened a workshop to identify the main research issues and needs to sustain Asian aquaculture into the first quarter of the 21st century, and also to bring them to the notice of relevant planners, managers and policy makers, and potential donors. The workshop was held in Rayong, Thailand from 4-7 June 2007. This report contains the issues papers drafted in preparation for the meeting and a summary of the discussions.

In this issue:

Developing guidelines for sustainable freshwater aquaculture planning in Vietnam. Aquaculture production, certification and trade for small-scale farmers. Backyard hatcheries for crustaceans in Thailand. Alternative carp species for diversification in India. Genetic and reproduction technologies for aquaculture and fisheries management of Murray cod. Status of sahar domestication in Nepal. Comparative advantage analysis of shrimp production in Asia. Strategies to improve the livelihoods of the rural poor, Vietnam, and more.

In this issue:

Better management practices for catfish aquaculture in the Mekong Delta, Vietnam. Developing better management practices for marine finfish aquaculture. Workshop on modelling carrying capacity for tropical finfish cage culture: Towards a consensus view. First comprehensive genetic management plan for Asian fish species: Mahseer. NACA and World Fisheries Trust sign agreement on collaboration. Fish Health Master Class. Second Workshop on Application of Molecular Genetic Techniques in Inland Fisheries and Aquaculture Management. Two new species of spiny eels described from Myanmar. Importance of species identification in conservation. Koh Yao Noi mangrove replanting in celebration of 80th birthday of His Majesty the King of Thailand. Responsible movement of live food finfish within ASEAN: Implementation workshop. Consultation on aquaculture certification guidelines. Strengthening regional mechanisms to maximise benefits to small-holder shrimp farmer groups adopting better management practices.

This document presents current status on genetic diversity of empurau and semah in Sarawak, Malaysia, including taxonomic status and a management guideline based on genetic data. Inadvertent mixing of the two species, especially during breeding, may lead to hybridisation, a threat to the genetic integrity of wild populations. Surveys on current status of genetic variability of empurau and semah are reported herein, and the results from which are used as baseline data for development of a genetic management plan.

In this issue:

A different form of dumping: The need for a precautionary approach for yet another new species for shrimp farming in Asia. Sustainable livelihoods of pangus farming in Bangladesh. Business approach to national broodstock centres in Vietnam. Freshwater aquaculture in Myanmar. Traditional carp culture in Central Europe. Egg and larval quality in sand bass Psammoperca weigiensis. Effect of protein and lipid level of growth performance of tiger grouper Epinephelus fuscoguttatus.

In this issue:

Buffaloes in favour of culture-based fisheries in Sri Lanka. Aquafeeds in Myanmar: A change from farm-made to factory-made feeds. Challenging myths about seed quality and potential benfits to the rural poor. Catfish Clarius batrachus production using low cost hatcheries. Cage fish culture and livelihoods in the mid-hill lakes of Pokhara, Nepal. Marine fish hatchery training. Rabbitfish Siganus guttatus breeding and larval rearing. Vietnamese extension manual on culture-based fisheries.

In this issue:

18th NACA Governing Council held in Bali, Indonesia. Strengthening aquatic animal health capacity and biosecurity in ASEAN - final workshop. Aquatic animal pathology master class. Vietnamese extension manual on culture-based fisheries. New project: Culture-based fisheries development in Lao PDR. Guidelines on digital publishing: a practical approach for small organizations with limited resources. Workshop on understanding and applying risk analysis in aquaculture. GISFish: Remote sensing and mapping for aquaculture and inland fisheries. Online encyclopeadia to list 1.8 m known species. DELTA 2007. NACA/FAO partnership working to establish guidelines for certification of farmed fish. Asia-Pacific Aquaculture 2007, 5-8 August 2007, Vietnam. Skretting sponsorship & scholarships for the Marine Finfish Aquaculture Network. The eleventh regular session on genetic resources for food and agriculture.

In this issue:

Sustainable black tiger shrimp farming in Sri Lanka. An economic analysis of Persian sturgeon stock enhancement. Aquaculture and environmental sustainability in Thailand: Food or financial security? Cage fish culture - successful income generation in manmade reservoir Kulekhani, Nepal. Diversification of rice farming alleviates poverty in a Bangladesh village. Sea-pineapple aquaculture in Japan. Green mussel cultivation in Thailand. Selective breeding for growh and fillet yield in Vietnamese catfish. Producing quality fish seed in rural Asia.

This manual provides a comprehensive practical tool for the generation and analysis of genetic data for subsequent application in aquatic resources management in relation to genetic stock identification in inland fisheries and aquaculture. The material only covers general background on genetics in relation to aquaculture and fisheries resource management, the techniques and relevant methods of data analysis that are commonly used to address questions relating to genetic resource characterisation and population genetic analyses.

This is the second part of the manual Application of molecular genetic techniques in aquaculture and inland fisheries management. It provides a step-by-step laboratory protocols and methodologies for data analysis and a guidelines to design a population genetic study. The scope covers most commonly used techniques for screening genetic variation, general background on the methodologies for estimation of important parameters in population genetic studies for different forms of molecular genetic markers.

The aim of this manual is to provide a comprehensive practical tool for the generation and analysis of genetic data for subsequent application in aquatic resources management in relation to genetic stock identification in inland fisheries and aquaculture. Part 1: Conceptual basis of population genetic approaches provides a basic foundation on genetics in general, and concepts of population genetics. Issues on the choices of molecular markers and project design are also discussed.

In this issue:

Expert Workshop on Guidelines for Aquaculture Certification. Responsible movement of live food finfish within ASEAN: Cebu Workshop finalises the standard operating procedures. Information and capacity requirements for maintaining aquatic animal biosecurity identified. China-ASEAN efforts to minimise risk of spread of aquatic pathogens. National Centre for Sustainable Aquaculture inaugurated. NACA Better Management Practices program expands in Indonesia. Manual on Application of Molecular Tools in Aquaculture and Inland Fisheries Management. Research Needs to Sustain Asia-Pacific Aquaculture to 2025 and Beyond. Endemic freshwater finfish of Asia: Distribution and conservation status.

L'élevage de la crevette est l’un des secteurs d'aquaculture le plus en essor dans beaucoup de régions du monde, il est également l’un des plus controversés. L'expansion rapide de ce secteur a généré, certes, des sources de revenus pour plusieurs pays, mais elle a été accompagnée par une préoccupation croissante sur les impacts environnemental et social. Les Principes Internationaux pour l'Elevage Responsable de la Crevette fournissent la base sur laquelle les parties prenantes peuvent collaborer pour un développement plus durable de l'élevage de crevette.

在世界许多地方，虾类养殖是水产养殖业增长最快，而且也是最具争 议的部门之一。这一部门的快速发展为许多国家创造了收入，但也伴随着 对环境和社会影响的忧虑。《负责任虾类养殖国际准则》在以更可持续的 方式发展虾类养殖方面为利益相关者之间开展合作提供了基础。《国际准 则》由虾类养殖与环境协作计划制定。该协作包括联合国粮食及农业组织 （粮农组织）、亚太水产养殖中心网、联合国环境规划署保护海洋环境免 受陆上活动污染全球行动纲领协调办公室、世界银行和世界自然基金会。

O Cultivo de Camarão é um dos setores de mais rápido crescimento na aqüicultura em várias partes do mundo e também o mais controverso. A rápida expansão deste setor possibilitou a geração de renda para muitos países, entretanto, ela tem sido acompanhada por crescentes preocupações sobre seus impactos ambientais e sociais. Os Princípios Internacionais para a Carcinicultura Responsável provêm a base sobre a qual todas as partes interessadas poderão colaborar para um desenvolvimento mais sustentável do cultivo de camarão.

El cultivo de camarón es uno de los sectores de la acuicultura de más rápido crecimiento y también uno de los más polémicos en muchas partes del mundo. La rápida expansión de este sector generó ingresos para muchos países, pero ha estado acompañada por preocupaciones crecientes relacionadas con sus impactos ambientales y sociales. Los Principios Internacionales para el Cultivo Responsable de Camarón proporcionan las bases sobre las cuales los diversos participantes pueden colaborar en pro de un desarrollo más sostenible de la camaronicultura.

In this issue:

International shrimp farming principles welcomed by countries. Discussions on the establishment of a "Mahseer R&D Centre". Microsatellite DNA markers for mahseer are now available. First study on genetic variation of the critically endangered Mekong giant catfish. IMNV found in Asia-Pacific. Thailand and US to jointly install tsunami wave sensors. Co-management in aquaculture explored at APFIC Forum. Virus may control Australia's feral carp problem. A milestone in India's sustainable shrimp farming efforts. Fish introduction in India: Status, challenges and potentials. 8th Asian Fisheries Forum. STREAM Update. Website management training to support Thai Post-tsunami Rehabilitation website.

Viet Nam's mangrove forests have been severely impacted by human interventions, with a reduction in forestation from 408,000 ha in 1943 to a low of 150,000 ha in 2000. This study provides an overview of the information needs and communication issues surrounding people living in mangrove regions of Viet Nam. It is hoped that this study will help to raise the awareness of issues surrounding mangrove environments and improve the accessibility to information, for all stakeholders.