RU2198510C2 - Mullet catching method - Google Patents

Abstract

FIELD: commercial fishery. SUBSTANCE: method involves using two net webs; providing stationary setting of net webs at an angle to one another on single lower seine rope; arranging upper seine ropes of net webs in parallel with one another at distance of 2-3 m and equipping with floats; fixing loads on lower seine rope. Method is used for catching mullet, as well as any other fish which, when coming across obstacle, tries to jump over it. Catching of mullet is performed at migration paths and in finishing ponds. EFFECT: increased efficiency by holding and concentrating fish in closed space between net webs. 1 dwg

Description

 The invention relates to industrial fishing, to methods of fishing for mullet.

 Known for mullet fishing with circumferential cut nets, the basis of which is two net canvases planted on common picks. A frequent network with a mesh of 32-34 mm, the landing coefficient of which is 0.25-0.3, has a significant slack and hangs on the selection, while the cutter (with a mesh of 250-300 mm and a landing coefficient of about 0.7) is constantly stretched. When the school of fish is found and the direction of its movement is determined, sweep the net. The net drawn in a semicircle forms at the ends of another 1.5-2 turns of a spiral directed into the swept space. There is a frequent net inside the swept area, and a cutter outside. Since the upper selection is shorter than the lower, the network forms a truncated conic surface, the upper edge of which is inclined towards the swept jamb. The bulk of the swept jamb obyachivaetsya. Fish jumping over the upper selection fall into the network of the external turn. The net is selected from two ends, the fish is pulled out, and the net is prepared for the next note (A.I. Khoroshko. Tools and methods for fishing mullet off the Turkmen coast of the Caspian. Zh. Fisheries, 4, 1979, pp. 53-54) .

 This method is applicable in the coastal strip. The main disadvantage is low catchability.

 The purpose of the invention is to increase the efficiency of fishing for mullet.

 According to the proposed method, mullet fishing is carried out by two net webs located at an angle to each other and installed stationary. The upper rebounds of net webs are provided with overlay. The lower selection of net webs is common, the load is attached to it. The upper rebounds are located on the surface parallel to each other at a distance necessary for the mullet to jump only one rebound, falling into the space between the nets.

 The drawing shows the installation of nets for fishing mullet.

 Mesh webs 1 and 2 are planted on the upper bays 3 and 4 and the general lower selection 5. Weights 6 are fastened to the lower selection 5, the upper rebounds 3 and 4 are provided with overhangs 7. Networks are installed using anchors 8. In the places where the anchors are installed, vertical mesh canvases 9.

 Networks are installed stationary in the coastal part of the sea or along the paths of mullet migration.

 The approach of a mullet to the fishing gear is possible from two sides. Having discovered the fishing gear, the mullet jumps up or goes down. A fish that has gone down is embraced from the outside of the net. Trying to jump to selection 3 or 4, depending on which side of the fishing gear the mullet came up, it falls into the space between nets 1 and 2. The distance between the upper selections is 2-3 m, it is enough for the fish to jump only one selection, but at the same time, floating in the gateway, could not develop sufficient speed in order to jump back. That fish, which is trying to go down in the firewall, is also lobbied.

 The length of the net cloth depends on the water area of the mullet. The proposed design may consist of several sections 20-25 m long, interconnected by suction or other compounds. Vertical net webs are welded in 10-12 m, i.e. along the edges and in the middle of each section, which limits the movement of fish along the selection, helps to maintain a predetermined distance between the upper selections and quick casting of the catch.

 Pouring of the catch is made by releasing the anchor braces from the tension and combining the two upper picks.

 The proposed method of fishing mullet can increase efficiency by retaining and concentrating it in a closed firewall.

 The method can be applied to catch other fish, which, like the mullet, having found an obstacle, try to jump over it. In inland waters, for example, it can be used for fishing grass carp, silver carp.

Claims (1)

 A method of fishing mullet, which involves fishing with two net webs planted on a common bottom selection, characterized in that the net webs are set at an angle to each other, while the net webs are planted on two upper sets located in parallel at a distance of 2-3 m.