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The otter may have multiple different designs. Otter boards used in bottom trawling are based on a similar design principle. The design takes advantage of the shearing effect achieved when the board is positioned at an oblique angle to the current. The effect is reminiscent of that of a kite in the wind.
Pelagic (midwater) otter trawl. 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. The body of the trawl is funnel-like, wide at its "mouth" and narrowing towards the cod end, and usually is fitted with wings of netting on both sides of the mouth.
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 ...
We need to talk about what hunting means to Wisconsin as gun deer season starts. It teaches kids self-worth in a rural culture that society mocks. Wisconsin deer hunting is dying.
An ample deer herd is expected to present good prospects to hunters in the 2022 Wisconsin gun deer hunting season. The season runs Nov. 19 to 27.
The late start to the Wisconsin gun deer hunting season Nov. 23-Dec.1 and a possible lack of snow could affect the harvest.
Otter trawl – An otter trawl is a demersal trawl which uses large rectangular otter boards to keep the opening of the trawl net from closing. Otter trawls are towed by a single trawler. Overfishing – occurs when fishing activities reduce fish stocks below an acceptable level. This can occur in any body of water from a pond to the oceans.
You can find the complete 2023-2024 Wisconsin hunting regulations on state's DNR website. Drew Dawson can be reached at ddawson@jrn.com or 262-289-1324.