Search results
Results From The WOW.Com Content Network
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. It may be used from a boat or pulled from the shore.
Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Donate; Pages for logged out editors learn more
Otter boards are positioned in such a way that the hydrodynamic forces acting on them when the net is towed along the seabed push the boards outwards to keep the mouth of the net open. The nets were attached to heavy duty ground ropes, 40 feet (12 m) long, which held the nets on the seabed and ticked up any fish lying on or below the sand.
Otter trawl. 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 ...
Upgrade to a faster, more secure version of a supported browser. It's free and it only takes a few moments:
Download as PDF; Printable version ... Buller was also involved in or oversaw the design of the DHC-3 Otter (1951 ... The Engineering Centennial Board named the DHC-2 ...
Stones can also be used as hammers, primarily to extract shellfish from their substrates. Other important aspects of otter tool-use behaviors include the use of tool composites and tool reuse. Tool composite is the term given to the combination of two rocks as an anvil and a hammer, separately, but used on the same prey item at once. [10]
A drawback of a tool board is that it may occupy a large area on a wall, and that the tools can get less protection from dust. Some recommend to hang heavier tools like hammers at the bottom, [2] [3] and especially wooden tool boards may bend or break from heavy tools if the board is made of fiberboard or other weaker materials. [1]