阅读说明：本技术 一种适用于深水水域的鱿鱼诱钓方法 (Squid fishing method suitable for deepwater water area ) 是由 唐峰华 隋芯 吴祖立 杨嘉樑 蒋科技 刘健 黄洪亮 于 2020-06-04 设计创作，主要内容包括：本发明涉及一种适用于深水水域的鱿鱼诱钓方法,天黑前,调整水下集鱼灯的光谱波段并将其放置在预设的水深处进行诱集鱿鱼；天黑后,将所述水下集鱼灯在第一水深处放置预设时间,并利用鱿钓钓机、手钓装置和手抄网同步进行钓捕鱿鱼；将所述鱿钓钓机和手钓装置的钓线的长度设置为N种长度,并将不同长度的钓线下放至对应的水深处进行相同时间钓捕,将所述鱿钓钓机中钓钩的抖动速度设置为三种抖动模式,并在每种抖动模式下进行相同时间钓捕；再将所述水下集鱼灯从第一水深分别上升至第二、第三和第四水深处,并在每个水深处放置所述预设时间,利用同样的方法钓捕鱿鱼；统计渔获尾数。本发明能够提高捕捞效率,为大洋鱿钓业务提供参考依据。(The invention relates to a squid trapping method suitable for deepwater water, which is characterized in that before dark, the spectral band of an underwater fish gathering lamp is adjusted and placed at a preset water depth for trapping squids; after darkness, placing the underwater fish gathering lamp at a first water depth for a preset time, and synchronously fishing the squids by using a squid fishing machine, a hand fishing device and a hand-landing net; setting the lengths of fishing lines of the squid fishing machine and the hand fishing device to be N lengths, lowering the fishing lines with different lengths to corresponding water depths for fishing at the same time, setting the shaking speed of a fishhook in the squid fishing machine to be three shaking modes, and fishing at the same time in each shaking mode; then the underwater fish gathering lamp is respectively lifted from the first water depth to the second, third and fourth water depths, and is placed at each water depth for the preset time, and the squid is fished by the same method; and (5) counting the fishing tails. The invention can improve the fishing efficiency and provide a reference basis for oceanic squid fishing business.)

1. A squid fishing method suitable for deep water areas is characterized by comprising the following steps:

step (1): before dark, the spectral band of the underwater fish gathering lamp is adjusted to the preferred spectral band of the squids, and the underwater fish gathering lamp is placed at the preset water depth to trap the squids;

step (2): after darkness, placing the underwater fish gathering lamp at a first water depth for a preset time, and synchronously fishing the squids by using a squid fishing machine, a hand fishing device and a hand-landing net; the length of the fishing lines of the squid fishing machine and the squid fishing device is set to be N lengths, the fishing lines with different lengths are lowered to corresponding water depth positions for fishing at the same time, the shaking speed of a fishhook in the squid fishing machine is set to be three shaking modes, and the squid fishing machine performs fishing at the same time in each shaking mode;

and (3): after the underwater fish gathering lamp is placed at the first water depth for a preset time, adjusting the depth of the underwater fish gathering lamp, respectively raising the underwater fish gathering lamp from the first water depth to a second water depth, a third water depth and a fourth water depth, placing the underwater fish gathering lamp at each water depth for the preset time, and fishing the squids by using the method in the step (2);

and (4): and (4) counting the fishing tail number of the squid fishing machine, the hand fishing device and the hand landing net in three modes.

2. The squid attracting fishing method for deep water areas according to claim 1, wherein the step of fishing squid in the steps (1), (2) and (3) is carried out on the basis of the same deep water area and the same attracting conditions for 7 consecutive days between the step (3) and the step (4).

3. A squid angling method suitable for deep water areas as claimed in claim 1, wherein the fishing line is connected with the fishhooks every 20-30 cm, the lowest end of the fishing line is provided with a heavy-hammer fishhook, the fishhooks are barb fishhooks, and barb fishhooks of different colors are arranged alternately.

4. A squid fishing method suitable for deep water areas according to claim 1, wherein the underwater fish gathering lamp is placed at a preset water depth for squid fishing through a deck working lamp in the step (1), and a half-sector reflector is installed on the deck working lamp.

5. A squid fishing method suitable for deep water areas according to claim 1, wherein the manual net is operated by sea fishing and boat side opportunistic fishing.

6. The squid angling method suitable for the deep water areas as claimed in claim 1, characterized in that the preset time is 1.5 hours.

7. A squid angling method suitable for deep water areas as claimed in claim 1, characterized in that the length of the fishing line is set to N lengths, respectively: 300 meters, 250 meters, 200 meters, 150 meters, 100 meters, and 50 meters.

8. The squid angling method suitable for the deep water areas as claimed in claim 1, characterized in that the first water depth is 300 meters, the second water depth is 200 meters, the third water depth is 100 meters and the fourth water depth is 50 meters.

9. The squid angling method suitable for the deepwater water as claimed in claim 1, characterized in that the shaking speed of the fishhook in the squid angling machine is set to three shaking modes, which are respectively: 30-40 rpm, 45-60 rpm and 65-75 rpm.

10. The squid angling method suitable for the deepwater water as claimed in claim 1, characterized in that the squid angling machine comprises: the device comprises a main control device (1), a main support rod (3), a horizontal balance shaft (4) and a bottom support baffle plate (12); the main supporting rod (3) vertically passes through the main control device (1) and is fixedly connected to the ship body, the horizontal balance shaft (4) horizontally penetrates through the main control device (1), two ends of the horizontal balance shaft (4) are respectively provided with a winding reel (5) connected with the main control device (1), a fishing line (7) is placed on the two winding reels (5), the fishing line (7) extends to the two fixed pulleys (6) through the two winding barrels (5) respectively, a squid fishhook (13) is arranged on the fishing line (7), a pulley supporting rod (8) for supporting the fixed pulley (6) is arranged on the bottom support baffle (12), the main control device (1) is connected with a power supply input line (10) and a command input line (11), and the command input line (11) is connected with the bottom support baffle (12); the main control device (1) controls the pull-up speed, the drop-down speed and the shaking frequency of the fishing line (7) through the rotation of the winding barrel (5).

Technical Field

The invention relates to the technical field of squid fishing, in particular to a squid fishing method suitable for deepwater water areas.

Background

Cephalopods are important marine economic animals and are called one of the fishery resource types with the most development potential in the future by food and agricultural organizations of the united nations. The oceanic squid accounts for the vast majority of the harvest yields of cephalopods. The key to improving oceanic squid fishing needs to solve the following technical problems: the water depth of the ocean squid is known to be how many meters, the floating water layer for foraging is how many meters, the ocean squid is suitable for being fished by a machine or by hands, the operation water layer with high fishing yield is how many meters, the underwater fish gathering lamp is placed for how many meters, and the squid trapping effect is the best, and the like.

In squid fishing operation, one important factor influencing fishing efficiency is the improvement of fishing technology, wherein the fishing technology comprises hand fishing technology, machine fishing technology, underwater lamp using technology and the like. From a large number of experiments, it was found that the rising speed and the shaking speed of the fishing machine are one of the main factors affecting the hook-up rate and the hook-off rate. The squid angling machine drags the fishing line to attract fish to hook and play through imitating hand fishing operation, is not limited by shallow line releasing depth and limited number of fishhooks in hand fishing operation, and has high fishhook turnover rate. Japanese squid fishing industry is developed, and researches on the speed control of fishhooks and the influence of ship body swinging on fishing are carried out for a long time. MY series jigging machines developed by Japan east and motor manufacture apply for hull swing correction function patent technology, and can reduce phenomena such as squid unhooking and fishing line winding; the design of a novel heavy hammer and the paying-off control enables the fishing line to have better sinking performance in cross flow. The Japanese and Korean industries mainly research professional squid angling machines and are suitable for large-scale production operation of offshore professional squid angling boats. The research in sweden and norway is mainly directed to general fishing machines, and different operation modes can be selected for different fishing objects. The development of the Chinese squid angling machine starts in the 70 th 20 th century, and is gradually changed from imitation to self-development, but the problems of insufficient compact structure and difference between the manufacturing process, the overall quality and the reliability and the similar angling machine generally exist. However, at present, on one hand, the squid fishing machine cannot completely replace hand fishing, the unhooking rate of hand fishing in oceanic or deep sea squid fishing operation is obviously lower than that of machine fishing, and the hand fishing yield still accounts for a higher proportion. On the other hand, squid fishing machines used in domestic squid fishing boats still need to be imported from abroad, so that the price is high, the maintenance is difficult, and the proportion of machine fishing yield is far lower than that of developed countries such as Japan. With the development of the squid fishing industry and the demand of the fishery modernization, the developed machine fishing has high centralized control level and high-intensity labor resistance, and can imitate or approach the intelligent squid fishing machine of hand fishing action, and the improvement of the fishing rate and the mechanization degree are key problems to be solved for the sustainable development of the squid fishing industry.

Disclosure of Invention

The invention aims to solve the technical problem of providing a squid fishing method suitable for deepwater water areas, which can detect the favorite water layer of the squid and improve the fishing efficiency of the squid.

The technical scheme adopted by the invention for solving the technical problems is as follows: the squid fishing method suitable for the deepwater water comprises the following steps:

step (1): before dark, the spectral band of the underwater fish gathering lamp is adjusted to the preferred spectral band of the squids, and the underwater fish gathering lamp is placed at the preset water depth to trap the squids;

step (2): after darkness, placing the underwater fish gathering lamp at a first water depth for a preset time, and synchronously fishing the squids by using a squid fishing machine, a hand fishing device and a hand-landing net; the length of the fishing lines of the squid fishing machine and the squid fishing device is set to be N lengths, the fishing lines with different lengths are lowered to corresponding water depth positions for fishing at the same time, the shaking speed of a fishhook in the squid fishing machine is set to be three shaking modes, and the squid fishing machine performs fishing at the same time in each shaking mode;

and (3): after the underwater fish gathering lamp is placed at the first water depth for a preset time, adjusting the depth of the underwater fish gathering lamp, respectively raising the underwater fish gathering lamp from the first water depth to a second water depth, a third water depth and a fourth water depth, placing the underwater fish gathering lamp at each water depth for the preset time, and fishing the squids by using the method in the step (2);

and (4): and (4) counting the fishing tail number of the squid fishing machine, the hand fishing device and the hand landing net in three modes.

And (4) fishing the squid according to the methods of the step (1), the step (2) and the step (3) on the basis of the same deepwater area and the same fishing condition for 7 days continuously.

The fishing line is connected with every 20 ~ 30cm the fishhook, the lower extreme of fishing line is provided with the weight fishhook, the fishhook is the barb fishhook to it alternates the range with the barb fishhook of different colours.

And (2) in the step (1), the underwater fish gathering lamp is placed at a preset water depth to lure and gather squid through the deck working lamp, and the deck working lamp is provided with a semi-sector reflector.

The operation modes of the hand-net are sea fishing and ship board opportunistic fishing.

The preset time is 1.5 hours.

The length of fishing line sets up to N kinds of length, is respectively: 300 meters, 250 meters, 200 meters, 150 meters, 100 meters, and 50 meters.

The first water depth is 300 meters, the second water depth is 200 meters, the third water depth is 100 meters, and the fourth water depth is 50 meters.

The shaking speed of a fishhook in the squid angling machine is set into three shaking modes which are respectively as follows: 30-40 rpm, 45-60 rpm and 65-75 rpm.

The squid angling machine comprises: the main control device, the main support rod, the horizontal balance shaft and the bottom support baffle plate; the main support rod vertically penetrates through the main control device and is fixedly connected to a ship body, the horizontal balance shaft horizontally penetrates through the main control device, two ends of the horizontal balance shaft are respectively provided with a winding drum connected with the main control device, fishing lines are placed on the two winding drums and extend to the two fixed pulleys through the two winding drums respectively, a squid fishhook is installed on each fishing line, a pulley support rod used for supporting the fixed pulleys is arranged on the bottom support baffle, the main control device is connected with a power supply input line and an instruction input line, and the instruction input line is connected with the bottom support baffle; the main control device controls the pull-up speed, the lowering speed and the shaking frequency of the fishing line through the rotation of the winding barrel.

Advantageous effects

Due to the adoption of the technical scheme, compared with the prior art, the invention has the following advantages and positive effects: the squid fishing machine with the shaking function, the hand fishing device and the hand landing net are used for synchronously fishing the squids in the deepwater water area, the underwater fish collecting lamps are placed at different depths of water, and fishing is carried out at different depths of water to detect the favorite water layers of the squids; according to the method, the squid is easiest to hook when the shaking speed of the fishhook is 65-75 r/min through fishing data analysis; the result obtained by the invention is suitable for different squid varieties in different sea areas, and the test method can lay a foundation for the large-scale production of the squids in the new fishing ground in the deepwater water area; the method provided by the invention provides data support for formulating a reasonable and effective fishing mode and improving squid fishing machine equipment, and improves fishing efficiency; providing a reference basis for oceanic squid fishing service; the invention also has the advantages of energy saving and labor cost saving.

Drawings

FIG. 1 is a schematic illustration of a process according to an embodiment of the present invention;

FIG. 2 is a diagram of the sea area and station for trapping a harvested squid in the gulf of California, Mexico, in an embodiment of the present invention;

FIG. 3 is a structural view of a squid angling machine device according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an underwater fish gathering lamp according to an embodiment of the present invention;

FIG. 5 is a schematic diagram of a deck working light configuration according to an embodiment of the present invention;

FIG. 6 is a graph showing a catch ratio distribution of three fishing modes according to the embodiment of the present invention;

FIG. 7 is a graph of the proportion of catch at different depths for an underwater fish gathering light according to an embodiment of the present invention;

FIG. 8 is a graph of three dither pattern catch ratio profiles according to an embodiment of the present invention;

FIG. 9 is a plot of a catch ratio profile for different line lengths according to an embodiment of the present invention.

The figure is as follows: 1. the main control device, 2, face apron, 3, main tributary vaulting pole, 4, horizontal balance axle, 5, spiral bucket, 6, fixed pulley, 7, fishing line, 8, pulley bracing piece, 9, panel backup pad, 10, power input line, 11, instruction input line, 12, collet baffle, 13, squid fishhook.

Detailed Description

The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.

The embodiment of the invention relates to a squid luring method suitable for deepwater water, which is shown in figure 1 and is a schematic diagram of the method of the embodiment of the invention, and the specific fishing luring steps are as follows:

step (1): the operation place in the embodiment of the invention is selected in the gulf of california in mexico, as shown in fig. 2, which is a sea area and station map for trapping the caught squids in the gulf of california in mexico, the operation ship is stopped according to ocean currents before dark, the spectral band of the underwater fish gathering lamp is adjusted to the spectral band preferred by the squids, and the underwater fish gathering lamp is placed at the preset water depth through the deck working lamp on the ship to trap the squids; as shown in fig. 4, which is a schematic structural view of an underwater fish gathering lamp according to an embodiment of the present invention, the underwater fish gathering lamp is a high-power lamp and is provided with a protective cover, has strong penetration capability in water, and is suitable for deep water operation; as shown in fig. 5, which is a schematic structural diagram of a deck working lamp according to an embodiment of the present invention, the deck working lamp is a high power lamp or an LED lamp, and is provided with a half-fan-shaped reflector, so that a light source shining on the sea surface is more concentrated, and the function is to improve a fish luring effect.

Step (2): in order to ensure reliable fishing data, fishing operation is carried out for at least 6 hours at one night, the fishing time in the embodiment is 6 hours, and since the underwater fish gathering lamp needs to be placed at four water depths in sequence, wherein the four water depths are respectively a first water depth, a second water depth, a third water depth and a fourth water depth, the underwater fish gathering lamp needs to be placed at each water depth for 1.5 hours, and the first water depth, the second water depth, the third water depth and the fourth water depth in the embodiment are respectively 300 meters, 200 meters, 100 meters and 50 meters; after the situation is dark, the underwater fish gathering lamp is placed in the water depth of 300 meters for 1.5 hours, and squid fishing is synchronously performed by using a squid fishing machine, a hand fishing device and a hand-net, in the embodiment, the fishing time in the first water depth, the second water depth, the third water depth and the fourth water depth is 1.5 hours, and the fishing time can be adjusted according to the practical situation of the marine survey test; the length of the fishing line of the squid fishing machine and the hand fishing device is set to be N lengths, the length of the fishing line in the embodiment is 6, and the lengths are respectively as follows: 300 meters, 250 meters, 200 meters, 150 meters, 100 meters and 50 meters, and fishing lines with different lengths are lowered to corresponding water depths for fishing for the same time; in the embodiment, the shaking speed of a fishhook in the squid angling machine is set to three shaking modes of 30-40 revolutions per minute, 45-60 revolutions per minute and 65-75 revolutions per minute, and the angling is carried out at the same time in each mode; the operation modes of the hand-net are sea fishing and ship board opportunistic fishing.

Further, the tackle in squid angling machine and the hand fishing device includes fishline and fishhook, the fishhook is the barb fishhook, the lower extreme of fishline is the weight fishhook, the fishline is connected with a barb fishhook every 20 ~ 30cm to alternate the range with the barb fishhook of different colours, the effect improves the squid and goes up the hook rate and catches efficiency.

As shown in fig. 3, a structure of a squid angling machine device according to an embodiment of the present invention includes: the device comprises a main control device 1, a main support rod 3, a horizontal balance shaft 4 and a bottom support baffle 12; the main control device 1 is provided with a panel cover 2, the main support rod 3 vertically passes the main control device 1 and fixed connection are on the hull, the horizontal balance shaft 4 level passes the main control device 1, the both ends of the horizontal balance shaft 4 are respectively provided with the winding reel 5 connected with the main control device 1, two the fishing line 7 has been placed above the winding reel 5, the fishing line 7 respectively passes through two the winding reel 5 extends to two fixed pulleys 6, fixed pulley 6 plays the effect of accepting and lubricating fishing line 7, the squid fishing technology fluency has been improved, fishing line 7 length is generally 50 ~ 300 meters, can set up according to the water layer of luring the squid, install squid fishhook 13 on fishing line 7, squid fishhook 13 quantity should not be too much, prevent that the squid rate of getting on the hook is too high and surpass the machine load and arouse the fracture of fishing line 7, be provided with on the collet baffle 12 and be used for supporting the pulley 8 of fixed pulley 6, the bottom support baffle plate 12 has the function that the captured squids can fall on the bottom support baffle plate 12 through the shaking of the fishing line 7, so that the escape rate of the squids is reduced, the fishing efficiency is improved, and meanwhile, the stability of the whole squid fishing machine can be improved; the main control device 1 is connected with a power supply input line 10 and a command input line 11, and the command input line 11 is connected with the bottom support baffle 12; the main control device 1 controls the pull-up speed, the drop-down speed and the shaking frequency of the fishing line 7 through the rotation of the winding barrel 5. The main control device 1 controls the work of the squid angling machine through the instruction input line 11, and the main control device 1 can control the rotation of the winding barrel 5 according to the input instruction of the display controller in fig. 2 so as to control the pull-up speed, the lowering speed and the shaking frequency of the fishing line 7 and further improve the squid fishing efficiency.

And (3): after the underwater fish gathering lamp is placed in a water depth of 300 meters for 1.5 hours, the depth of the underwater fish gathering lamp is adjusted, the underwater fish gathering lamp is respectively lifted to water depths of 200 meters, 100 meters and 50 meters from the water depth of 300 meters, the underwater fish gathering lamp is placed in each water depth for 1.5 hours, and the method in the step (2) is utilized for fishing the squids.

And (4): and (4) counting the fishing tail number of the squid fishing machine, the hand fishing device and the hand landing net in three modes.

In order to eliminate contingency and increase the accuracy of fishing data, the following steps are also present between the step (3) and the step (4): and (3) carrying out a squid fishing luring test in the gulf sea area of California in Mexico for 7 days continuously, and fishing the squid according to the methods in the step (1), the step (2) and the step (3) on the basis of the same fishing luring conditions.

The statistical result of the continuous 7-day squid fishing test in the sea area of California obtained based on the steps specifically comprises the following steps:

statistical result 1: as shown in fig. 6, a distribution diagram of the percentage of fish catches in the three fishing manners according to the embodiment of the present invention shows that the number of fish catches in the squid angling machine is the largest by comparing the number of fish catches in the three different operation manners, the percentage of fish catches in the squid angling machine is 90%, the percentage of fish catches in the hand angling device is 6%, and the percentage of fish catches in the hand dip net is 4%.

And 2, statistical result: as shown in fig. 7, which is a distribution diagram of the catch proportions of the underwater fish gathering lamp in different depths according to the embodiment of the present invention, the catch amount statistics at different positions of the underwater fish gathering lamp include the following proportions of the underwater lamp in 4 water depths: the proportion of the catch at 50 meters of the underwater fish gathering lamp is 24 percent, the proportion of the catch at 100 meters of the underwater fish gathering lamp is 27 percent, the proportion of the catch at 200 meters of the underwater fish gathering lamp is 22 percent, the proportion of the catch at 300 meters of the underwater fish gathering lamp is 27 percent, and the proportion of the catch at the depths of 100 meters and 300 meters of the underwater fish gathering lamp is slightly higher.

Statistical result 3: as shown in fig. 8, which is a distribution diagram of the fishing percentage in three shaking modes according to the embodiment of the present invention, the shaking speed of the hook in squid fishing machine has an influence on the number of the fisheries, and when the shaking speed is 30-40 rpm, the fishing percentage is 11%; when the shaking speed is 45-60 r/min, the fishing percentage is 36%; when the shaking speed is 65-75 r/min, the fishing proportion is the highest and reaches 53%.

And (4) counting result: as shown in fig. 9, which is a distribution diagram of the percentage of fish in different lengths of fishing line according to the embodiment of the present invention, the percentage of fish is 30% when the length of the fishing line is 100 m; when the length of the fishing line is 150 meters, the fishing proportion is 29 percent; when the length of the fishing line is 200 meters, the proportion of the fish catches is 25 percent; when the length of the fishing line is 250 meters, the proportion of the fish catches is 11 percent; the proportion of catch is lower when the line length is 300 meters and 50 meters.

Therefore, the squid fishing machine with the shaking function, the hand fishing device and the hand brail net are used for synchronously fishing the squids in the deepwater water area, the underwater fish collecting lamps are placed in different water layers, and fishing is carried out on the different water layers to detect the favorite water layers of the squids; the invention can also obtain the optimal shaking speed of the fishhook in the squid angling machine, thereby greatly improving the fishing rate of the squid; the invention can lay a foundation for the large-scale production of squid in a new fishing ground in a deepwater water area, improve the fishing efficiency and provide a reference basis for oceanic squid fishing business.