Artificial propagation of bivalves: techniques and methods
This technical paper was prepared as part of the Mollusc-Shellfish Culture Course of the 7th NACA Training Course for Senior Aquaculturists in Asia and in the Pacific. This 12 month course commenced in March 1988 and was held at the NACA Regional Lead Centre of the Philippines in Tigbauan, Iloilo. The aquaculture industry among developing Asian and Pacific countries has been growing considerably within the last decade, particularly in the mollusc culture sector. Asia is the most important cont inent in the world in terms of mollusc landings from culture practices followed by Europe and North America. The landings for the three continents in 1985 were 2,094,913 MT, 591,476 MT and 176,810 MT respectively, which accounted for 72.6%, 20.5% and 6.1% of the year's total production. The bivalve groups which are widely harvested from natural fisheries or cultured in the region belong to the families Ostreidae, Mytilidae and Arcidae, and compared to the above, only few gastropods are importa nt, mostly collected from natural fisheries. Among the latter group, abalones are certainly the most important, as they are highly valued as a food item and therefore highly priced. The shellfish industry, in particular the shellfish culture sector offers great potential in many countries in Asia and Pacific for increasing domestic consumption and foreign exchange earning from export. In order to realize this potential, developmental programmes have been launched in several countries and some have achieved good results in terms of species cultured, production and export. However, the industry is facing a number of problems and constraints which vary in magnitude and severity according to area and country. The problems affecting the development of this industry may be categorized into three major groups: 1) environmental, 2) biological and 3) social.
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| Format: | Project biblioteca |
| Language: | English |
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1990
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| Online Access: | https://openknowledge.fao.org/handle/20.500.14283/AB739E http://www.fao.org/3/a-ab739e.htm |
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