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Otter trawling derives its name from the large rectangular otter boards which are used to keep the mouth of the trawl net open. Otter boards are made of timber or steel and are positioned in such a way that the hydrodynamic forces, acting on them when the net is towed along the seabed, push them outwards and prevent the mouth of the net from ...
An otter board Front of the otter board Folded otter board. The otter is a fishing device constructed with two parts, an otter board and a fishing line. It is steered by pulling on the line then letting stack so the slide mechanism on the board operates to switch direction.
However, single-boat trawling is more common. Here, the horizontal spread of the net is provided by trawl doors (also known as "otter boards"). Trawl doors are available in various sizes and shapes and may be specialized to keep in contact with the sea bottom (bottom trawling) or to remain elevated in the water. In all cases, doors essentially ...
1: trawl warp, 2: otter boards, 3: longline chains, 4 hunter, 5: weights 6: headline with floats, 7: pre-net, 8: tunnel and belly, 9: codend. Midwater trawling is trawling, or net fishing, at a depth that is higher in the water column than the bottom of the ocean. It is contrasted with bottom trawling.
Trawling is a method of fishing that involves actively dragging or pulling a trawl through the water behind one or more trawlers. Trawls are fishing nets that are pulled along the bottom of the sea or in midwater at a specified depth. A trawler may also operate two or more trawl nets simultaneously (double-rig and multi-rig).
A French police officer has been ordered to pay 1,000 euros, or approximately $1,000 after he described a woman who filed a sexual assault complaint as a "whore", a source close to the case said ...
Otter fishing is a fishing technique which uses trained otters to fish in rivers. This method has been practised since the 6th century in various parts of the world, and is still practiced in southern Bangladesh .
The drivers have also asked for the city to build a permanent carriage stand closer to one of the four public restrooms on the south end of the park where they operate, the rep said.