Statistical Terms Glossary

Refers to links between firms, or within a firm, up-and-down the production chain for a particular product. In recent times the production chain for a range of products and services has become more global.

A vertically integrated enterprise is one in which different stages of production, which are usually carried out by different enterprises, are carried out in succession by different parts of the same enterprise (the output of one stage becomes an input into the next stage, only the output from the final stage being actually sold on the market.

<communications, protocol> (VDSL) A form of Digital Subscriber Line similar to ADSL but providing higher speeds at reduced lengths.

A casualty to an IWT vessel which involves the total loss of the IWT vessel, loss of life or severe pollution.

A casualty to a vessel which involves the total loss of the vessel, loss of life or severe pollution.

communications> (VSAT) A kind of ground station used to contact a communications satellite such as INMARSAT.

Is a limit on the quantity each individual vessel can land per trip or short period of time (e.g., day, week).

The basic function of VMS is to provide reports of the location of a vessel at regular intervals. VMS tracks the vessel movements and may provide information on its speed and course. The monitoring authorities can check a range of factors including whether the vessel operates in an area where fishing activities are not allowed; operates in the Exclusive Economic Zone of another Member States or third countries or waters under responsibility of a Regional Fisheries Management Organisation; holds the necessary licences and quotas to fish in the relevant area. MS does not replace existing monitoring methods but it makes them more effective by providing the authorities with the location of vessels suspected of having committed infringements thus enabling inspectors on patrol vessels to carry out checks at sea. In addition, if suspected infringements are not immediately detected, irregularities can still be spotted later by cross-checking data.

They are shore-side systems which range from the provision of simple information messages to ships, such as position of other traffic or meteorological hazard warnings, to extensive management of traffic within a port or waterway.

Unit of measurement representing the movement of a vessel over one kilometre.
Note: To measure the vessel-kilometres performed, the distance considered is the distance actually run. Movements of unladen vessels are included.

Unit of measurement representing the movement of an inland waterways transport (IWT) vessel over one kilometre.

The actuarial present value, using current salary levels, of vested benefits only.

See Vested rights

Deferred pensions for deferred pensioners, benefits accrued to active members and benefits of passive members.

Any substance or combination of substances presented for treating or preventing disease in animals or which may be administered to animals with a view to making a medical diagnosis or to restoring, correcting or modifying physiological functions in animals.