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Book (stand-alone)Manual / guideManual on hatchery production of seabass and gilthead seabream - Volume 2 2005
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No results found.Seabass and gilthead seabream are the two marine fish species which have characterized the development of marine aquaculture in the Mediterranean basin in the last three decades. The substantial increase in production levels of these two species, initially of very high value, has been possible thanks to the progressive improvement in the technologies involved in the production of fry in hatcheries. As a result of this technological progress more than one hundred hatcheries have been bu ilt in the Mediterranean basin, working on these and other similar species. At present the farmed production of these two species that is derived from hatchery produced fry is far greater than the supply coming from capture fisheries. The development of these techniques, based originally on Japanese hatchery techniques, has followed its own evolution and has resulted in what could be called a Mediterranean hatchery technology that is still evolving to provide higher quality animals and to reduce the costs of production. This is a dynamic sector but it can be judged that it has reached a level of maturity that merits the production of a manual for hatchery personnel that could be also of interest in parts of the world other than the Mediterranean. The preparation of the manual has taken several years, also due to the progress of the sector that led to substantial revisions of sections. The manual is not intended to be a final word in hatchery design and operation but rather a publication to document how the industry produces. The authors have preferred to include proven procedures and designs rather than to orient this publication to research hatcheries that are not yet the standard of the sector. The manual has been divided in two volumes, of which the first one was finalized in year 2000, and which covered historical background, biology and life history of the two species and especially hatchery production procedures. This second volume is div ided in four parts. -
Book (series)Technical studyThe hatchery culture of bivalves: a practical manual 2004Bivalve mollusc culture is an important and rapidly expanding sector of world aquaculture production, representing approximately 20% of this output at 14 million tonnes in 2000. The majority of production is from natural populations although increasingly stocks are approaching or have exceeded maximum sustainable yields. Enhancement of stocks through the capture and relaying of natural seed in both extensive and intensive forms of culture is common practice worldwide but the reliability of natur al recruitment can never be guaranteed and conflicts over the use of the coastal zone are becoming ever more pressing. A solution to meeting the seed requirements of the bivalve industry, applicable to the production of high unit value species such as clams, oysters and scallops, is hatchery culture. The production of seed through hatchery propagation accounts at the present time for only a small percentage of the total seed requirement but it is likely to become increasingly important as work continues to produce genetically selected strains with desirable characteristics suited to particular conditions. The advent of bivalve hatcheries was in the 1960s in Europe and the U.S. Since those early pioneering days knowledge of the biological requirements of the various species that predominate in worldwide aquaculture production and the technology by which to produce them has and continues to improve. This manual brings together the current state of knowledge in describing the v arious aspects of hatchery culture and production from acquisition of broodstock to the stage at which the seed are of sufficient size to transfer to sea-based growout. Focus is on intensive methodology in purpose built hatchery facilities rather than on more extensive methods of seed production in land-based pond systems. This manual is not intended as a scientific treatise on the subject. Rather, it is practical in nature providing the reader with an insight into what is required in the w ay of resources and details of how to handle and manage the various life history stages of bivalves in the hatchery production cycle.
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No Thumbnail AvailableProjectProgramme / project reportReport of the Training course on seabass spawning and larval rearing - Songkhla, Thailand - 1 to 20 June 1982
South China Sea Fisheries Development and Coordinating Programme
1982Also available in:
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DocumentBulletinNon-wood news
An information bulletin on Non-Wood Forest Products
2007Also available in:
No results found.Behind the new-look Non-Wood News is the usual wealth of information from the world of NWFPs. The Special Features section covers two different aspects of NWFPs: a specific product (bamboo) and a developing market (cosmetics and beauty care). Bamboo is versatile: it can be transformed, for example, into textiles, charcoal, vinegar, green plastic or paper and can also be used as a food source, a deodorant, an innovative building material and to fuel power stations. Reports indicate that natural c osmetics and beauty care are a huge global market, with forecasts indicating an annual growth of 9 percent through 2008. The Special Feature on Forest cosmetics: NWFP use in the beauty industry builds on this and includes information industry interest and marketing strategies (consumers are being drawn to natural products and thus their content is emphasized). As can be seen from the articles on shea butter in Africa and thanakha in Myanmar, many societies have always used and benefited from nat ural cosmetics. This issue includes other examples of traditional knowledge, such as the uses of the secretions of a poisonous tree frog in Brazil and the use by the traditional healers in India of allelopathic knowledge. -
Book (series)Technical studyImproving biosecurity through prudent and responsible use of veterinary medicines in aquatic food production 2012
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No results found.The current trend towards increasing intensification and diversification of global aquaculture has lead to its dramatic growth, thus making aquaculture an important food-producing sector that provides an essential source of aquatic protein for a growing human population. For both developed and developing countries, the sector is recognized as creator of jobs and an important source of foreign export earnings. The expansion of commercial aquaculture, as is the case in commercial livestock and pou ltry production, has necessitated the routine use of veterinary medicines to prevent and treat disease outbreaks due to pathogens, assure healthy stocks and maximize production. The expanded and occasionally irresponsible global movements of live aquatic animals have been accompanied by the transboundary spread of a wide variety of pathogens that have sometimes caused serious damage to aquatic food productivity and resulted in serious pathogens becoming endemic in culture systems and the natura l aquatic environment. The use of appropriate antimicrobial treatments is one of the most effective management responses to emergencies associated with infectious disease epizootics. However, their inappropriate use can lead to problems related to increased frequency of bacterial resistance and the potential transfer of resistance genes in bacteria from the aquatic environment to other bacteria. Injudicious use of antimicrobials has also resulted in the occurrence of their residues in aquacultur e products, and as a consequence, bans by importing countries and associated economic impacts, including market loss have occurred. Since disease emergencies can happen even in well-managed aquaculture operations, careful planning on the use antimicrobials is essential in order to maximize their efficacy and minimize the selection pressure for increased frequencies of resistant variants. The prudent and responsible use of veterinary medicines is an essential component of successful commercial aq uaculture production systems. The FAO/AAHRI Expert Workshop on Improving Biosecurity through Prudent and Responsible Use of Veterinary Medicines in Aquatic Food Production was convened in Bangkok, Thailand from 15 to 18 December 2009, in order to understand the current status of the use of antimicrobials in aquaculture and to discuss the concerns and impacts of their irresponsible use on human health, the aquatic environment and trade. Such discussions became the basis for drafting recommenda tions targeted to the state and private sectors and for developing guiding principles on the responsible use of antimicrobials in aquaculture that will be part of the FAO Code of Conduct for Responsible Fisheries Technical Guidelines on Prudent and Responsible Use of Veterinary Medicines in Aquaculture. Since aquaculture is expected to continue to increase its contribution to the world¿s production of aquatic food, offer opportunities to alleviate poverty, increase employment and community de velopment and reduce overexploitation of natural aquatic resources, appropriate guidance to aquaculture stakeholders on the responsible use of veterinary medicines has become essential. Safe and effective veterinary medicines need to be available for efficient aquaculture production, and their use should be in line with established principles on prudent use to safeguard public and animal health. The use of such medicines should be part of national and on-farm biosecurity plans and in accordance with an overall national policy for sustainable aquaculture. This publication is presented in two parts: Part 1 contains 15 technical background papers presented during the expert workshop, contributed by 28 specialists and which served as a basis for the expert workshop deliberations; Part 2 contains the highlights of the expert workshop. -
Book (series)Technical studyThe Fishery Industry in China  2004
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No results found.The aim of this document is to give a full and comprehensive picture of the fishery sector in China. It provides information on government policies and other initiatives, followed by a description of the fishery industry in terms of capture fisheries, marine and inland aquaculture, processing, international trade (import & export), marketing, distribution and consumption. Finally it studies the impact of China’s accession to the World Trade Organization (WTO) and its influence. Data collection h as centred mainly upon the China National Annual Fishery Industry Statistics and some References.