The main task of the fishing industry of the country is the maximum catch of the set limits of water living resources at respect for nature protection norms. At industrial catch of fishes the most various means are used.
Instruction
1. Generally for industrial fishing use a grid cloth. The net cloth is made of threads thick and thin. Do the confusing tackles and the detaining traps of a grid. Networks put on the movement of a school of fishes, and this methods is called a tackle which detains. The tackles detaining are divided into stavny and zakidny.
2. The mobile seine belongs to zakidny tackles. Its design consists of the net cloth surrounded with floats on the top edge. The principle of fishing is that water filters through a net cloth, and the fish who got to a zakidyvaniye zone remains in wings of a seine or in a special bag (so-called motnya).
3. A simple seine it is good to catch dense schools of fishes. But by a seine there passes that fish who does not get off in jambs. The mobile seine is developed for catch of this fish. Emission of a mobile seine is made by a shot from the special device installed on a nasal part of the deck of the fishing vessel. When using this adaptation the full disclosure of a seine turns out: horizontal disclosure – up to 16 m, vertical – up to 5 m.
4. Catching of fish begins with a shot "kutka" of a seine then in water a motenny part and wings is pitted. The seine falls by the set depth which is set by length of trawl ropes and additional floats depending on the seine sizes. The seine pitted in water finishes and begins to pass through itself water. As the vessel moves at a rectilinear course, the seine is not displaced in a rope, and gets a bag form – it occurs at the expense of the etched traction ropes.
5. Through a certain set time a pull of a seine on the industrial deck of the vessel is made. A pull is made through a fodder part of the vessel. The seine is tightened by the special ship winch to a stern of the vessel and a cargo arrow rises from water. The first get wings, then extend an estuarial part shake, and behind it – "kutok". For release "kutka" from a catch on its back part is the special rings intended for a hook "kutka" and its raisings over the deck.
6. Fish who got to "kutok" pours out on the deck then the seine is transferred to a nasal part and again prepares for a shot in water. The caught fish is sorted and removed from the deck in the prepared tanks in a hold. Thus, use of a mobile seine promotes catching of the trade species of fish which are not formed in dense jambs which cannot be caught a usual seine.