otter board
Смотреть что такое "otter board" в других словарях:
otter board stow net — a bag net with two wings, one connected to the river bank and the other to a floating otter board. The otter board keeps the mouth of the net open. The otter board can be manipulated to close the mouth of the net to allow boats to pass … Dictionary of ichthyology
otter board — 1) a large, heavy, flat piece of wood and metal on each side of the mouth of an otter trawl; the boards plane or shear through the water and keep the net mouth open. Also called otter door, trawl door, trawl board. The term is also used for any… … Dictionary of ichthyology
otter board — noun : one of the two large boards or metal plates that keep the net of an otter trawl spread and that are attached to each side of the mouth of the net and are caused to flare apart by pressure of the water … Useful english dictionary
otter board — Naut. one of a pair of large, heavy, square or rectangular plates or boards of metal or weighted wood attached to the trawl lines on each side of the mouth of a trawl net to maintain lateral spread during trawling. [1765 75] * * * … Universalium
otter board — noun either of a pair of boards attached to each side of the mouth of a trawl net, keeping it open as it is pulled through the water … English new terms dictionary
cambered otter board — an otter board, q.v., of trawl curved in fore and aft directions … Dictionary of ichthyology
dual fin otter board — an otter board developed in British Columbia for midwater trawling using plywood sections to spread the trawl mouth … Dictionary of ichthyology
Suberkrub otter board — an all steel and cambered otter board on a midwater trawl, vertically aspect greater than the horizontal. Named for its inventor … Dictionary of ichthyology
otter — n. 1 a any of several aquatic fish eating mammals of the family Mustelidae, esp. of the genus Lutra, having strong claws and webbed feet. b its fur or pelt. 2 = sea otter. 3 a piece of board used to carry fishing bait in water. 4 a type of… … Useful english dictionary
board bridle — backstrop (a short wire or chain system between the otter board and bridle on an otter trawl. Also called backboard becket, backstrop, board leg, board strop, door legs, door strop and sling) … Dictionary of ichthyology
board leg — backstrop (a short wire or chain system between the otter board and bridle on an otter trawl. Also called backboard becket, backstrop, board bridle, board strop, door legs, door strop and sling) … Dictionary of ichthyology
