Note : this Vessel Type Fact Sheet is a preliminary version. Comments and suggestions: send an e-mail to figis-comments@fao.org    FAO/FIIT Fishing Vessels Types Fact-Sheet Trawlers updated : 09-mai-2001 ISSCFV Classification : > Category : Trawlers   Side trawlers   Stern trawlers   Outrigger trawlers Vessel characteristics Profile Vessel Class: Length: all Power: all Tonnage: all Additional information: This parent classification includes all vessels operating in an active manner involving towing one or more nets classified as trawls. Deck Type: : Normally decked vessels but may, in small scale fisheries include large undecked canoes. General Description: Depending on the area of operation and trawl used, trawlers range in size from open boats, undecked, powered by outboard engines up to largefreezer trawlers andfactory trawlers which can fish in the most distant waters. Trawling is the most important and one of the most efficient fishing methods in the world. Today, commercial trawling is carried out from very shallow waters up to a depth of 2000 m. These deep water vessels are provided with engines of sufficient power to tow the gear at the appropriate trawling speed. Deck Arrangement: From the point of view of deck arrangement three main types of trawlers can be distinguished: the side trawler (Fig. 1), thestern trawler (Fig. 2) and theoutrigger trawler (Fig. 3). Catch Handling Mode: Fresh fish in ice orrefrigerated sea water and/or frozen fish in blocks or boxes. Features Equipment: Deck Equipment: There will be various arrangements of the deck equipment depending on the type of trawler concerned. All trawlers will carry atrawl winches for handling and storage of the towing warps.Gilson winches,net drums and other auxiliary winches are commonly installed to handle the gear and the catch. Pelagic trawlers may be equipped with fish pumps for emptying the codend. Fish Detection Equipment: Typical fish detection equipment of trawlers consists usually of asonar,net sounder, various types ofecho-sounders and trawl control equipment. Fishing Gear: Bottom trawl , midwater trawl. Fleet statistics Fleet capacity (total number) for : Trawlers. Fleet capacity (total GRT) for : Trawlers.