In order to assess fleet capacity, it is necessary as a bare minimum to have estimates of vessel numbers and main vessel characteristics. If the fleet consists of only one type of vessel, the number of fishing vessels may be...
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Vessel tonnage
In international law, as well as in practice, two measurements of tonnage of ships have existed side by side: Gross Registered Tonnage (GRT) defined by the Oslo Convention (1947), and Gross Tonnage (GT) defined by the London Convention (1969)....
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Vessel length
The most frequently used and preferred measure of the length of a fishing vessel is length overall (LOA) which refers to the maximum length of a vessel from the two points on the hull most distant from each other,...
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Other measures of the length of vessels are:
Waterline length (LWL) which refers to the length of the designed waterline of the vessel. This measure is used in determining certain properties of a vessel for example, the water displacement; Length...
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Vessel classification
For statistical purposes three main classifications were adopted by the CWP for classifying fishery vessels by tonnage, type and length:
The International Standard Statistical Classification of Fishery Vessels by GRT Categories (FAO, 2021b), based on the Gross Registered Tonnage...
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Data collection
Data on fishery fleet are collected by means of the statistical questionnaire FISHSTAT FF. Form FF1 is used for the collection of data on decked vessels, whereas form FF2 is intended for undecked vessels for which the most important...
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FAO. 1998. Fishery fleet statistics, 1970, 1975, 1980, 1985, 1989-95. Bulletin of Fishery Statistics No. 35. Rome, FAO. 501 pp.
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FAO. Fishing vessel type (fact sheets). [Cited 1 November 2020]. https://www.fao.org/fishery/en/vesseltype/search
FAO. 2021a. International Standard Statistical Classification of Fishery Vessels by Vessel Types (ISSCFV, Rev.1, 2019). (also available at http://www.fao.org/3/cb5201en/cb5201en.pdf)
FAO. 2021b. International Standard Statistical Classification of Fishery Vessels by GRT Categories...
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Fishery production core variables
The core variables identified for capture fisheries are restricted to only two items as they are the most widely available. The core variables to be collected are:
Gross value of landings Employment
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Gross value of landings
The gross value of the landings is normally collected together with landing statistics (e.g. from fish auctions or from sales slips). In order to establish the link to the catch statistics (refer catch and landings) these data...
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