beam trawl
a trawl with short wings and a head rope attached to a metal or wooden beam 4-12 m long. The beam keeps the net open horizontally while metal frames on each end of the beam keep the net open vertically. The beam has metal runners to support it off the sea floor and the tapering bag net drags over the bottom. These trawls may have tickler chains to disturb the fish so the net does not ride over them. Experimental electrified ticklers have been developed to be less damaging to the sea bed. Beam trawls are used mainly for flatfish (and shrimp)

Dictionary of ichthyology. 2009.

Look at other dictionaries:

  • beam trawl — noun : a trawl net with its mouth spread by a beam compare otter trawl * * * a trawl net whose lateral spread during trawling is maintained by a beam across its mouth. Cf. otter trawl. * * * beam trawl noun A trawling net kept open by a beam… …   Useful english dictionary

  • beam-trawl — ˈ ̷ ̷ˌ ̷ ̷ intransitive verb Etymology: beam trawl : to fish with a beam trawl …   Useful english dictionary

  • beam trawl — a trawl net whose lateral spread during trawling is maintained by a beam across its mouth. Cf. otter trawl. * * * …   Universalium

  • double beam trawl — two beam trawls towed by one trawler …   Dictionary of ichthyology

  • beam trawler — noun : a fishing boat equipped with a beam trawl * * * beam trawler noun • • • Main Entry: ↑beam …   Useful english dictionary

  • beam trawler — a vessel operating a beam trawl …   Dictionary of ichthyology

  • Trawl — Trawl, n. 1. A fishing line, often extending a mile or more, having many short lines bearing hooks attached to it. It is used for catching cod, halibut, etc.; a boulter. [U. S. & Canada] [1913 Webster] 2. A large bag net attached to a beam with… …   The Collaborative International Dictionary of English

  • trawl head — a strong, heart shaped iron frame fitted at each end of a trawl beam to raise it about one metre off the sea bed. The after side is straight and slopes upward of each head to stake the ropes or wires by which the trawl is towed. The sides of the… …   Dictionary of ichthyology

  • trawl — I (New American Roget s College Thesaurus) n. net, dragnet, seine. v. beam or otter trawl, fish, net, haul, drag, seine. See traction, pursuit. II (Roget s 3 Superthesaurus) n. net, dragnet, line …   English dictionary for students

  • outrigger trawl — beam trawl (a trawl with short wings and a head rope attached to a metal or wooden beam, 10 m or more long, which keeps the net open horizontally and scrapes the bottom to scoop or startle fish into the net. Metal frames on each end of the beam… …   Dictionary of ichthyology

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