RU1773356C - Squid fishing device - Google Patents

Abstract

The invention relates to commercial fish farming. The purpose of the invention is to increase the efficiency of fishing by reducing the likelihood of squid leaving the fishing zone of the fishing gear. The conical pick-up is divided by adoptions into the upper and lower chambers. Not more than half of the perimeter of the upper base of the pickup has a net fence to hold the squid in the catch zone, 3 s, water, 1 sludge,

Description

The invention relates to industrial fishing, in particular to catching squid conical pick-ups

The purpose of the invention is to increase the efficiency of fishing by reducing the likelihood of squid leaving the fishing zone of the lion gun.

The drawing schematically shows a device for fishing squid in the form of a cone pickup,

The conical pick-up comprises an upper part 1 and a lower chamber 2, which are separated by a venter puffer 3, sometimes equipped with a valve 4. The lower chamber has a device 5 for drinking the catch. The upper and lower base of the upper part of the conical pickup mounted on hoops 6 and 7.

The conical catch is provided with a squid holding device in the form of a net fence 8. The lower edge of the net fence is fixed to the hoop in a section that is no more than half the circumference of the hoop. The upper edge of the net fence is equipped with a melt (not shown). The conical pickup has two hoisting cables 9 connected by jumpers 10. The baits are located on the jumpers (baits without hooks) 11

The height of the net fence 8 is equal to the distance from the upper bridge to the upper base of the pickup.

Lighting equipment for squid fishing consists of one or two girders nd 12.

The conical pick-up is provided with an additional lifting cable 13 for pouring the catch from the lower pick-up chamber using a crane beam 14.

Cone picking work as follows.

The lights 12 from the light sources are turned on and the squid is attracted to the vessel. Due to biological features, the squid attracted to the vessel is concentrated in the shadow zone under the vessel.

After that, several (usually 2-6) conical pickups are lowered from the side of the ship. Their number is determined by the presence on the ship of arrows, a crane block, shots, winches, spiers, windlass necessary for the work of conical pickups.

The squid usually adheres to the vessel under the light zone with illumination from 0.1 to 10 lux, i.e. in the depth range from 5-10 to 40-60 m.

Taking into account the distribution of squid under the vessel, the cone pickup increases

x | xj s s

cl

about

reciprocating movement in the indicated range of depths, capturing when lifting the squid, which was in the area of catching the cone pickup or as a result of an attack on the bait, or natural distribution in the shadow zone under the vessel.

Taking into account the mobility of the squid, the rate of rise of the conical pickup should be at least 0.8-1.0 m / s. For more successful work in the process of fishing booms, crane-cranes, shots are arranged so that the hoist hoisting cables are located as close as possible to the side of the vessel, and the grab during lifting captures a denser part of the squid accumulation.

When moving the grab up, it grabs the squid from the shadow zone and attacked the bait, Some of the latter are delayed by the net fence and fall into the grab. The squid that has fallen into the upper part of the grab passes a venter adoption with the valve open when moving the grab and gets into the lower pick-up chamber 2, where the catch is concentrated

After a predetermined filling, the catch with the help of the boom 15 and the winch 16 is selected to the surface of the water and lifted by lifting cables to pour the catch onto the deck of the vessel or into a net bag overboard. The spout is made through the catch spout 5, sometimes using an additional hoisting cable 13.

After the end of the catch, the grab is again lowered into the water and pro, they are forced to catch the squid, making a reciprocating movement at the depth of the catch.

Similarly, they work with other cone pickups, if the vessel operates simultaneously with several pickups,

Consider a specific example of squid fishing in the Southwest Atlantic from BMRT type vessels.

The BMRT field equipment allows for the simultaneous operation of four taper hooks.

Arrow departure on BMRT vessels allows working on these vessels with large diameter conical pickups. Taking into account the rigidity of the structure, we accept a conical pickup with a diameter of the hoop base. 4 m, the diameter of the large base of the venter’s adoption, and the diameter of the lower chamber 3 m, the diameter of the smaller base of the ventilation of the ventilator, 0.6 m.

adoption The plate is provided with a counterbalance so that in the stationary position of the pickup or its downward movement, the valve is closed, and when moving upward under the influence of water resistance, it is open for the squid to pass into the lower chamber. The height of the lower chamber is taken equal to 4 m, and the total pickup is 8 m, which ensures the capacity of the lower chamber is not less

0 its rise to the deck of the vessel for pouring the catch without lifting the upper base of the catch on the deck of the vessel,

The baits are placed on the jumpers at a distance of 0.5-0.6 m, the total number

5 jumpers 5 at a distance of 0.5 m from each other,

Accordingly, the height of the net fence is 2.5 m, and it takes half the circumference of the hoops on which

0 net fence planted.

The two light strings consist of 2 kW light sources and a total power of 100 kW. The dowels are parallel to the diametrical plane on

5 distance 2 m from it and at a height of 5 m above the deck of the vessel.

Given the distribution of squid in the shade of the vessel, the pickup reciprocates in

0 range; depths from 10 to 50 m at a lifting speed of 1 m / s.

Considering the load capacity of the cargo devices and ensuring the best squid quality, the catch is poured out when

There are 2-2.5 tons of squid in the pick-up chamber. The duration of one fishing cycle depends on the concentration of squid and can range from 1 to 3-4 hours.

The proposed device can be used with a positive squid reaction instead of fishing with vertical heifers, which ensures an increase in fishing productivity by an average of 3-5% and reduces the cost of production

5 fish by 5-10%.

Claims (4)

SUMMARY OF THE INVENTION 1. A squid fishing device containing light sources, squid collecting means, baits, fortified 0 above the collecting means on horizontal lintels, squid holding device, hoisting cable, characterized in that, in order to increase the efficiency of fishing by reducing 5, the squid is likely to leave the fishing gear fishing area, the device is equipped with an additional lifting cable, jumpers connect the ends of both cables, the squid restraint is designed as a net fence, which is part of the cone surface, the lower edge of the fence is fixed fio to the perimeter of the upper part squid collection means in a portion of not more than half of this perimeter. 2. The device according to p. 1, characterized in that the means for collecting squid is a conical pickup, consisting of upper and lower chambers, separated by ventilation shafts, and the height 0 the net fence is equal to the distance from the upper bridge to the upper base of the pickup. 3. The device according to paragraphs 1 and 2, it is distinguished by the fact that the catch is equipped with a hoop, and the upper edge of the net fence is fixed on the section of the hoop, which is no more than half of its perimeter. 4. The device according to paragraphs 1 and 2, with the exception of the fact that the upper edge of the net fence is provided with a melt. / Ј