Exports: This covers all movements out of the country of fish and fishery products. Data on exports include fish caught by domestic fishing vessels and landed directly in foreign ports.
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Stock variations: This category refers to changes in stocks occurring at all levels between the production and the retail levels. It covers changes in government stocks, in stocks with manufacturers, importers, exporters, other wholesale and retail merchants, transport and storage...
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Total food supply: There are various ways of defining supply and, in fact, various concepts are in use. The elements involved are production, imports, exports and changes in stocks (increases or decreases). There is no doubt that production, imports and...
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Population: Refers to the present-in-area de facto population, i.e. includes all persons physically present within the geographical boundaries of countries. In general, the population data used are three-year averages of the mid-year estimates published for each country by the Population...
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Per capita supply: Data under this category indicate the per capita food fish supplies available for human consumption during a given reference period. It is derived by dividing total food supply by the population.
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FAO. 2017. Fishery and Aquaculture Statistics Food Balance Sheets. FAO yearbook/annuaire/anuario 2015. Rome, FAO. 403 pp. (also available at https://www.fao.org/fishery/static/Yearbook/YB2015_CD_Master/navigation/index_content_food_balance_e.htm).
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General concepts In the context of CWP, a statistical concept is a representation of a notion or entity based on a unique set of characteristics which defines a statistical measure, dimension or domain, and which has been developed by CWP or recommended...
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In the context of fisheries data, geographic coordinates will consist of pairs of (x,y) numerical values handled in the spatial reference system considered (refer spatial reference system). If needed, these pairs may be extended to include a third dimension with...
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Geographic coordinates WKT format
In Method 3 above, the recommended format for handling coordinates is the OGC Well-Known-Text format (WKT). Whatever the geometric shape, WKT provides a simple string representation of the geometry. In that way, a single column is...
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