lobster trap crab fishing technology

Data:2014/4/3 1:46:49

lobster trap crab fishing technology
Crab lobster trap is a kind of low energy consumption, less labor, fishing fishing method for high price, does not destroy the ecological environment, it is not affected by tonnage, power limitation, all kinds of fishing boats are available crab lobster trap as main or side engaged in fishing production. Because of its main catching crabs, fish selectivity, is conducive to the marine fishery resources, population structure, development, protection and rational utilization of fish resources.
lobster trap specifications
1 crab lobster trap frame: lobster trap for steel frame net lobster trap, cylindrical, diameter 60 cm, 24 cm high. The iron circle 2, consisting of 2 root diameter 12 mm round bent into the joint welded steel, solid, with a diameter of 8 mm and cut into 6 root length is short round steel 24 cm and 2 root length 61 cm. 2 61 cm round steel are respectively welded on the two round diameter position, as the cross staining; the 6 24.5 cm round by 2 to a group evenly welded between two circles, as the column.
A net 2 crab lobster trap: 3 cm long, 100 mesh, 34 mesh width to 1 blocks with mesh, wide around the slit into a cylindrical. The cylinder head mesh series string and the lobster trap, and then set out in the lobster trap frame, a net barrel is also string to string together. Net drum, folded mouth to center in the lower die, beam, and beam bottom folded rope should be fastened, the top folded rope is adjustable, can be placed at any time according to need to loosen the bait, fishing gear and sorting out.
3 funnel-shaped entrance: a circular crab lobster trap with three funnel entrance, is the crab into the lobster trap channel, which is characteristic of crab export not only into the. The assembly has a direct impact on the fishing effect. In the 6 frame crab lobster trap side, every one in the middle 2 columns transversely cut 16 mesh net, in order to install funnel entrance. Use three mesh 2.5 cm long, wide 14.5 to 50 mesh screen, each mesh wide seam into an oval import Road, ends in a flat oval, the head of each net barrel are respectively wound suture in the framework of cut, should pay attention to around the joint: from the upper and lower second orders play around, on both sides should be close to the column net around the joints. 50 mesh cylinder, upper and lower 15 orders all around, the left side of the winding 10 orders. The net barrel overturned repacked into the lobster trap became outside the mouth, three funnel entrance mouth small, net has certain elasticity, transverse cut net lining in the funnel installed, will make the net barrel end naturally folded into oblate shaped mouth, the entrance is wider, more to more narrow, crab in the bait lured into the lobster trap easy, difficult to escape..
4 line: Line 8, 1020.5 meters long, line 400, 5 meters long. Department of lobster trap line 400, 1 meters long.
5 attachments: buoy made of hard plastic or foam blocks, and then tied the knot with the flag pole, 8 general. As the heavy stone blocks of 8, each weighing 4 to 6 kg.
Gear assembly
The line lobster trap knot tied in lobster trap on the brim, one end of the middle connecting branch, branch line is connected to the other end of the line, a distance of 20 meters. Each branch node of 1 lobster traps, namely each backbone node of 50 lobster traps. In the trunk at both ends of each node 1 buoys and 1 pieces of heavy stone, forming 1 groups of lobster trap. Each work unit general 8 lobster traps, route 8164 meters, the total number of lobster traps 400.
Food selection
On trap operation, bait to catch a direct impact. According to the foraging habits crab bait, fishy smell, meat hard, good gloss, fresh fish is better. After testing, Auxis led, abalone times. The main reason is the crab eating fishy smell great, good glossiness of the organism, and Auxis salt products smell greatly, and can keep the larger emission time, easy to trap crab into the lobster trap. Each tail rudder bonito and cut into sections, with a little salt, after 1 to 2 hours of meat hard as well, the high rate of the lobster trap.