How to fish for industrial purposes
How to fish for industrial purposes
The main task of the fishing industry of the country isThe maximum catch of the established limits of aquatic living resources under observance of environmental standards. At an industrial catch of fishes the most various means are used.
Instructions
1
Basically for industrial fishing usecanvas cloth. The mesh fabric is made of thread thick and thin. From the grid do confusing tackles and trapping traps. The networks are set according to the movement of the school of fish, and this method is called tackle, which delays. Gear detainees are divided into fixed and swing.
2
Mobile nets refer to swing gear. Its design consists of a net cloth cased with floats along the upper edge. The principle of fishing is that water seeps through the netting, and the fish caught in the tipping zone remains in the wings of the seine or in a special bag (the so-called mottle).
3
It is easy to catch dense jambs with a simple netfish. But by the seine passes that fish, which does not get lost in the jambs. To catch this fish, a mobile net is developed. The ejection of mobile nets is carried out by a shot from a special device mounted on the bow of the deck of a fishing vessel. When using this device, a complete opening of the seine is obtained: horizontal opening - up to 16 m, vertical - up to 5 m.
4
The catch of fish begins with a shot of the "tail" of the seine,after which the water part is discharged from the mantle part and wings. The net goes down to a given depth, which is specified by the length of the rope ropes and additional floats, depending on the size of the seine. The seine, seared in water, straightens and begins to let water through. As the ship moves along a straight course, the net does not fold into a rope, but takes the form of a bag - this is due to etched traction ropes.
5
After a certain set time, thelifting of seine on the industrial deck of the vessel. The ascent is made through the stern of the vessel. A special ship winch draws the net to the stern of the ship and the cargo arrow rises from the water. The first to take out wings, then pull out the wellhead part of the mote, and behind it - the "kutok" itself. To release the "kutka" from the catch on its back, there are special rings designed to hook the "kutka" and lift it above the deck.
6
Fish, which fell into the "kutok", poured out ondeck, after which the net is transferred to the bow and again prepared to shoot into the water. The caught fish is sorted and removed from the deck in the prepared containers in the hold. Thus, the use of mobile seine contributes to the catching of commercial fish species that do not form in dense schools, which can not be caught by conventional seine.
