WO2019039658A1

WO2019039658A1 - Artificial reef for sea cucumber shelter

Info

Publication number: WO2019039658A1
Application number: PCT/KR2017/013104
Authority: WO
Inventors: 김영대; 박미선; 신윤경; 박명애
Original assignee: 대한민국(관리부서:국립수산과학원)
Priority date: 2017-08-23
Filing date: 2017-11-17
Publication date: 2019-02-28
Also published as: KR102068220B1; KR20190021721A

Abstract

The present invention relates to an artificial reef provided as a shelter for sea cucumbers, comprising: a frame having an opening which a sea cucumber inhabits and having a curved arch structure for bearing an upper load of the opening; and a protrusion which is raised along a longitudinal direction of the frame on the outer circumferential surface of the frame, and has an access hole penetrating through the frame so that the sea cucumber can move into or out from the opening, wherein a plurality of protrusions are formed on the outer circumferential surface of the frame, and the protrusions are spaced from one another so that legs of the frame can be inserted. The present invention provides a configuration and a specification thereof in which legs of an upper frame are inserted into spaces spaced between the protrusions on the surface of the lower frame when stacking the artificial reefs, to provide an extended sheltered space. Accordingly, there are advantages in that an extended space can be provided between the upper frame and the lower frame in a two-stage or multi-stage structure, and seaweed can inhabit the outer circumferential surface of the lower frame and, at the same time, a shelter for a sea cucumber may be additionally formed in the spaces spaced between protrusions on the lower frame.

Description

Artificial fish for sea cucumber hide

The present invention relates to an artificial fish sanctuary for a sea cucumber hide among structures that provide a space in which fish can be dumped into the sea.

As the name suggests, sea cucumbers belonging to sea cucumbers in the echinoderms are called ginseng of the sea, and their popularity is increasing day by day as the best recreational foods. At the same time, consumer demand for high quality aquatic products is also increasing. Especially, sea cucumber is a demand item that is sold at a high price in the Chinese market, and it is attracting attention as an export strategy varieties.

Sea cucumbers are called blue sea cucumbers, black sea cucumbers and red sea cucumbers according to body color. The reason why colors appear different is because the food to be consumed is different. Red sea ginseng is eaten by seaweeds and reddish. Red sea cucumbers and black sea cucumbers are mainly consumed in the bodies of fish and shellfishes and organic matter in the soil, and they display a darkish color. Blue sea cucumbers and black sea cucumbers swallow organic matter with sand or clay, then filter out organic matter and digest sand and clay through anal anus. If you look closely at the bottom of the sea, you can see that the sea cucumbers have remnants of the gills. These are the traces that the sea cucumbers excrete after eating the sand of the bottom. The eating habits of these sea cucumbers are compared with those of earthworms, which cleanse the land. Therefore, sea cucumbers which play a role in helping the midnight effect of the sea are preferred as cultivars.

The habitat of blue sea cucumbers is inhabited in rocky areas, gravel, and sandy beaches in the outlying waters. The habitat of red sea gwass is inhabited in rocky areas, gravel (Ondasung, Jeju, Ulleung, Chuza Island, etc.), and the Black Sea is inhabited in the subnutritional waters and areas affected by land. Since the final harvest of sea cucumber is carried out in the sea, the habitat and other food must be prepared in the sea. From this point of view, the provision of artificial fishes that serve as habitats in large-scale forms is emerging.

Artificial fish is an artificial structure that creates an environment in which fish can live by dropping concrete structures, waste ships, and waste tires into the sea. Artificial fishes dropped in the sea are provided with a shelter where seaweeds can attach and grow when they breed. Artificial fishes can artificially secure fishery resources of echinoderms such as abalone, seashells, and sea cucumbers that eat seaweeds. Artificial fishes are composed of artificial structures for increasing fisheries resources in coastal waters. Artificial fishes can improve the efficiency of catching fish by the growth of aquatic resources and fishery communities, and can shorten the fishing time due to the proximity of the fishing grounds.

Artificial fishes are divided into coastal reptiles that are installed within 20m depth and coastal reefs that are installed at 20-50m depth. The coastal reptiles mainly focus on adherents such as shellfishes and seaweeds and young fish such as fishes, Is the result of the collision of the algae with the reefs, resulting in explosion and vortexes, which float the nutrients that have accumulated on the seafloor to the upper layer, thereby enhancing the productivity of the coastal fisheries by creating an environment in which various plankton can breed in large quantities.

Artificial fish is made of concrete, steel and composite materials. It has a surface structure that is used for coastal lagoons and sea reefs and has a skeletal structure. Structured.

Korean Patent No. 10-0988360 (hereinafter referred to as "prior art") discloses a step-like artificial fish candle 10 for forming shellfish and forming seaweed as a conventional art related to artificial fish candles. In particular, the prior art has a trapezoidal-shaped main body 20 having an inner space portion 21 formed inside and having a narrow upper portion and a wider lower portion, both sides of which are opened and a width gradually increases as the lower portion is advanced, (40) (41) formed on the front surface and the rear surface for communicating the inside space portion with the outside of the main body, a flange portion (50) formed at the lower portion of the main body to prevent sinking of the main body, The ribs 60 are formed between the ribs formed on the upper portion of the main body so as to be narrowed in cross section progressively as they progress toward the end portions. A artificial fish candle with a shellfish forming part (65) having a space in which the material is captured and inhabited by shellfishes and a dummy string (70) fixed by a fixing unit to the ribs is disclosed.

However, referring to FIG. 1, the prior art discloses an embodiment in which a housing structure is provided in the main body internal space 21 to form a plurality of spaces. This assists in separating the space inside the limited body, and it is judged that there is a problem in forming an additional space.

In addition, the prior art constitutes the lower flange portion 50 to prevent the stepped artificial ear candle 10 from sinking on the ground. However, in the above structure, it is judged that there is a fear that the stress concentrates on a part of the flange portion 50 when the artificial ear candles are stacked to extend the space in the height direction, and thus it is damaged.

Therefore, there is a need for artificial fishes for sea cucumber hiding places having a structure advantageous for laminating, in order to easily and stably form additional expansion space to accommodate the population of sea cucumbers growing within a limited space.

In addition, the prior art has a dummy string 70 fixed on the ribs 60 so that the seaweed habitat is formed on the dummy string 70 by implanting a spore or dummy of algae before the installation of the artificial ear 10 Lt; / RTI >

Also, referring to FIG. 2, it can be seen that the sea cucumber has a strong habitat in the concave part of the stepped artificial ear candle. This is considered to be the basis for designating the shellfish form part 65 in the prior art. Prior art has a distribution section (40) (41) in a shellfish habitat (65). However, if the sea cucumber is inhabited with a high density on the shellfish habitat 65, the through holes of the

distribution units

40 and 41 may be clogged.

As described above, the prior art in which the imitation string 70 is formed on the rib 60 to fail to realize the circulation part 40 (41) is characterized in that the shell part (65) of the sea shell ) (41) are implemented. As a result, the possibility of clogging the through holes of the

flow passages

40 and 41 can be improved. This may interfere with the movement of the organic matter or the inorganic matter through the circulation sections 40 (41), and there is a fear that the free movement of the sea cucumber may be hindered. Thus, conventional artificial fishes have not been provided with a structure particularly suitable for the nursery environment of sea cucumbers.

[Prior Art Literature]

[Patent Literature]

(Patent Document 1) Korean Patent No. 10-0988360

It is an object of the present invention to provide a sea artificial fish that can provide an extended cloaking space through stacking of reeds to accommodate the population of sea cucumbers growing in a limited space.

In order to accomplish the above object, the present invention provides an artificial fish sanitary napkin provided as a cover for a sea cucumber, comprising: a frame having an opening for living sea cucumbers and having a curved arch structure for supporting an upper load of the opening; And a protrusion formed on an outer circumferential surface of the frame along a longitudinal direction of the frame, the protrusion being formed on the outer circumferential surface of the frame so as to allow the sea cucumber to pass through the frame, The protrusions are spaced apart so that a part of the frame of the credit artificial fish seconds is inserted and stacked.

Preferably, the frame is an arch structure in which a bottom surface is opened and a longitudinal section of the '∩' shape is elongated in the longitudinal direction, and a part of the frame is inserted into the spacing space of the protrusion to be stacked on the outer circumferential surface of another frame.

Preferably, the protruding portion may have an inner diameter of 10 to 20 cm.

Preferably, the protrusion may not be formed in the center line in the longitudinal direction on the outer circumferential surface of the frame so that a part of another frame may be inserted and laminated to the center of the outer circumferential surface of the frame.

Preferably, the protrusions may be spaced apart from each other by more than a width of a part of a frame to be inserted into the credit artificial perch.

Preferably, the frame is inserted between protruding portions of the credit artificial fish candle in which one end in the longitudinal direction has the same structure as the credit artificial fish candle in the longitudinal direction, and the other end in the longitudinal direction is the credit artificial fish candle The second sea cucumber having the same structure as the first sea cucumber is inserted between the protruding portions of the credit artificial fish candle and the first and second sea cucumbers are arranged in parallel adjacent to each other.

According to the present invention, in order to provide an extended cloaking space, a part of the upper frame is inserted into the space between the protrusions of the lower frame surface when the artificial ear candles are stacked, and a standard for implementing the structure is provided. As a result, an expanded space is provided between the upper frame and the lower frame in a two-stage or multi-stage structure, seaweeds on the outer periphery of the lower frame are inhabited and a shelter of sea cucumbers is additionally formed in the space between the lower frame protrusions There is an advantage.

In addition, the artificial fish weed according to the present invention has a space efficiency per unit area higher than that of existing artificial fishes, which are provided in a direction parallel to the ground without being laminated, so that there is an advantage that the number of cultured sea cucumbers can be improved in the same unit area.

Fig. 1 shows a stepped artificial ear according to the prior art.

Fig. 2 shows the morphology of the sea cucumber.

Fig. 3 is a schematic diagram of a method of mixing sea cucumbers.

FIG. 4 shows a sea artificial fish according to an embodiment of the present invention.

5 is an enlarged view of a protrusion according to an embodiment of the present invention.

FIG. 6 is a view illustrating a layered structure of a sea artificial fish according to an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the exemplary embodiments. Like reference numerals in the drawings denote members performing substantially the same function.

The objects and effects of the present invention can be understood or clarified naturally by the following description, and the purpose and effect of the present invention are not limited by the following description. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Fig. 3 is a schematic diagram of a method of mixing sea cucumbers.

Referring to FIG. 3, the sea cucumber mixed mode is a method for culturing sea cucumbers by discharging the sea cucumbers and constructing structures or artificial fishes for the sea cucumber hide on the undersurface of the bottom of the cucumber, sea cucumber and sea weed. In particular, the mixed culture of sea cucumbers utilizes the principle that the bodies of organic matter, excreta and marine organisms excreted by heterotrophic marine organisms are fed to sea cucumbers. Generally, sea cucumber fry grows mainly by eating diatoms. As the sea cucumber grows more than 3cm, it consumes organic substances, seaweeds and abalone feces. Therefore, the mixed cultivation method is an eco-friendly culture technology because it has a low quality improvement effect by ingesting and decomposing organic matters. In addition, the sea cucumber cultured by the mixed culture method is characterized by a high growth rate compared to the natural cultured sea cucumber due to the abundant food supplied from the pickling farm.

Especially, the arrangement of artificial fishes is affected by the depth of water, so it is best to avoid basically the breaking zone of the sea area, and it is judged to maximize the effect of the shelter facility by establishing the boundary with the flat sandy rock. It is possible to secure effective stability by securing about three times of the design wave height measured in the projected area. These shelter facilities must be designed considering the characteristics of the sea area, and it is especially important to design a comprehensive layout and facility considering the eating, moving, excretion, circulation and density of the sea cucumber.

On the other hand, if the shelter facility of the sea cucumber is installed at a depth of less than 5 meters, it is close to the sea surface and frequent changes in the water temperature due to the day-to-day variation occur. . In addition, if the water depth is low, the oil / minerals discharged from the shoal farm can possibly be transported by the seawater algae movement, and the merit of the sea cucumber mixed form may disappear. As the depth of water / minerals emanating from the fish farms grows, the reach of organic matter tends to decrease. Therefore, if the shelter facility of sea cucumber is installed at a depth of more than 15 meters, the reach rate of oil / minerals discharged from the aquaculture farm is lowered, and thus the growth rate of sea cucumber is not easily increased. In addition, as the depth of the sea cucumber shelter facility deepens, the facilities, maintenance and management of the shelter facility and the difficulty of harvesting the sea cucumber also increase.

4 shows the sea cucumber according to the embodiment of the present invention as the credit artificial fish sec (1).

In this embodiment, sea cucumber is a fishery facility that protects and nurtures aquatic organisms with an artificial structure (1). Sea cucumbers are similar to natural rocks in terms of credit artificial fish (1). Considering the ecology of sea cucumbers, sea cucumbers artificially form the preferred environment for sea cucumbers in credit artificial fishes (1) 1) to cultivate sea cucumbers at a high density. The purpose of the sea cucumber is to introduce credit artificial insects (1). These sea cucumbers are a good habitat for seaweeds, which plays a major role in the marine ecosystem, and the abundant seaweeds become good food for fishes and shellfish, and become good spawning grounds for fish. In addition, the sea cucumber is a credit artificial fish (1), which protects against intense waves (swells) and ocean currents, creates vortexes, and provides rich dissolved oxygen and micro plankton, making it a good resting place for seafood.

Referring to FIG. 4, the sea cucumber may be provided with a frame 11 including a plurality of projections 13 protruding from the outer circumferential surface thereof. The frame 11 according to the present embodiment can define the concave portion 15 as a space separated between the projecting portion 13 and the projecting portion 13 as a plurality of the projecting portions 13 are formed.

The frame 11 may have an opening 30 in which the sea cucumber may reside and may have a curved arch structure to support the upper load of the opening 30.

The arch structure refers to a curved shape in which the opening 30 is secured and a considerable load can be supported by compressive stress. Through this, the arch structure prevents the tensile stress from acting on the structure. All loads acting in the downward direction from the top of the arch structure will act as compressive stresses. It is strong against compression in rocks, cast iron, concrete, etc., but it is advantageous for weak materials in tensile, shearing and twisting. Therefore, sea cucumber can be made of concrete material to have strong corrosion resistance and stress-resistant characteristics to the underwater environment.

The opening 30 will be described in detail with reference to the shape of the frame 11 described below.

The frame 11 is an arch structure in which the lower surface is opened and the longitudinal section of the ∩ shape is elongated in the longitudinal direction and the legs 11a (Fig. 6) supporting the frame 11 are spaced apart from the spacing space 15 of the projections 13. Fig. And may be laminated on the outer circumferential surface of the other frame 11. [

The above-mentioned longitudinal direction means a direction parallel to the axial direction of the frame 11. Accordingly, the legs 11a (Fig. 6) can be understood as regions corresponding to both ends formed along the circumferential direction of the frame 11 extending along the axial direction. As described above, the frame 11, which is formed by bending a plate-shaped object having a thickness, can be understood as a semi-cylindrical shape in which the inside in the circumferential direction is removed. Thus, the opening 30 may mean the inner circumferential surface of the frame 11 and the space formed by the other structures.

The leg 11a according to the present embodiment does not mean a component added to the frame 11 and includes a frame 11 capable of performing a function of abutting the substructure to support the frame 11, Lt; / RTI >

In this embodiment, the frame 11 emphasizes the structure of the legs 11a (Fig. 6) so that it can be fixed easily at the time of insertion, so that the underside can have an open structure. The spacing space of the projections 13 defined by the recess 15 on the outer surface of the frame 11 also engages other structures that do not have the same dimensions as the width of the frame legs 11a .

The frame legs 11a (Fig. 6) can be easily inserted by minimizing the bottom surface and the friction surface of the knee. In addition, the frame legs 11a (FIG. 6) can perform the fixing function through the frictional force generated from the bottom surface and the pressure acting on the bottom surface when the sea cucumber hide sinks on the bottom surface of the knee.

As described above, the frame 11 having the open bottom structure can provide a structural characteristic so that the sea cucumber can easily ingest a body of fish or shellfish present on the bottom surface or organic matter in the soil.

5 is an enlarged view of a protrusion 13 according to an embodiment of the present invention.

Referring to FIG. 5, a plurality of access holes 130 are formed on the surface of the protrusion 13.

The protrusion 13 protrudes along the longitudinal direction of the frame 11 on the outer circumferential surface of the frame 11 and an access hole 130 penetrating through the frame 11 is formed so that the sea cucumber can be inserted into the opening 30 . A plurality of protrusions 13 are formed on the outer circumferential surface of the frame 11 and can be spaced apart from each other so that the legs 11a (Fig. 6) of the frame can be inserted.

In this embodiment, the projecting portion 13 may have a flat cross-section so that the entrance and exit holes 130 are formed. The protruding portion 13 may be provided with a sufficient space for the sea cucumber to live in the spaces between the both side surfaces and the protruding portions 13. The protrusions 13 may interfere with fishing due to the small unauthorized trawler trawl or fishing trawl fishing in coastal fishing grounds due to the nature of the structure.

The protrusion 13 may have an inner diameter of 10 to 20 cm.

In this embodiment, the access hole 130 can be used as a passage for the distribution of organics and minerals and for the sea cucumber. Sea cucumbers have a strong appetite and active activity at water temperatures below 17, stop eating when they are above 17, and sleep in the summer when they are above 25. Generally, the sea tear adults can grow to 10 to 30 cm in length and 10 to 15 cm in thickness, and weigh about 200 to 300 g. Therefore, in order to protect the sea cucumber which is resting in the internal space from the predator, the sea cucumber has a size of the entrance hole 130 for spatially isolating the enemy of the sea cucumber, May be required. The entrance hole 130 may be formed to have the same inner diameter from the surface of the projecting portion 13 to the opening 30 in the frame 11.

In this embodiment, the access hole 130 is located on the projection 13 and needs to be noted for its function. Sea cucumbers generally tend to prefer corners or corners. 2, when the access hole 130 is located in the concave portion 15, the sea cucumber is inhabited in the concave portion 15 at a high density, and the penetration into the access hole 130 is blocked . In addition to this, it is difficult to protect the sea cucumbers from enemies, and the sea cucumbers reduce the amount of dissolved oxygen in the openings 30 formed in the credit artificial insects 1 and reduce the effect of providing micro-plankton, It is possible to deteriorate the function.

The protruding portion 13 may be formed extending from the inner peripheral surface of the frame 11 inward.

Specifically, the projections 13 formed to extend outward from the outer circumferential surface of the frame 11 and the projections can be formed at positions corresponding to the frame 11. In this way, the surface area of the inside of the frame 11 can be increased to improve the habitat area of the sea cucumber.

And may be formed extending inward from the inner circumferential surface at a staggered position with the protruding portion 13 formed to extend outward from the outer circumferential surface of the frame 11. [ In this case, the surface area of the inside of the frame 11 increases and the access hole 130 is formed shorter than the frame 11 having the protruding portion extending to the corresponding position, so that the sea cucumber can easily access the frame 11 .

As such, the projecting portion 13 can be elongated with respect to the outer peripheral surface and the inner peripheral surface of the frame 11, and the position thereof can be selectively changed.

FIG. 6 shows a layered structure of the sea artificial fish sauce 1 according to an embodiment of the present invention.

The sea cucumber according to the present embodiment can be contacted with the bottom surface of the credit artificial fish candle 1 in such a manner that the first and second sea cucumbers are arranged in parallel adjacent to each other. In addition, the first and second sea cucumbers may be installed in multiple stages by inserting the frame legs 11a between protrusions formed on the outer circumferential surfaces of the respective credit artificial fish secs. At this time, the first and second sea cucumbers may form the first living space 31 with the opening 30 spaced apart from the bottom of the credit artificial fish and the sea floor. In addition, the frame 30 inserted between the frame 11 and the first and second sea cucumbers may form a second living space 33. In this embodiment, in order to describe a state in which a plurality of frames 11 are stacked, the first and second sea cucumbers define credit artificial seconds as terms for describing structures different from the frame 11 to be inserted.

The projections 13 may not be formed in the center line in the longitudinal direction on the outer peripheral surface of the frame 11 so that the legs 11a of the other frame can be inserted and stacked at the center of the outer peripheral surface of the frame 11. [

As a result, the artificial fish candles (1) manufactured with a constant size can be arranged at the same interval to enable repeated lamination. In detail, a plurality of artificial fish seats in contact with the sea floor can be arranged in parallel to form a single stage. Thereafter, the two-stage artificial fish candles can be arranged in parallel so that the frame legs are correspondingly inserted into the center of the outer peripheral surface of the adjacent first-stage artificial fish candle. An additional laminate structure such as a three-stage or a four-stage can be formed in the same manner. Therefore, excluding the formation of protrusions on the center line in the longitudinal direction on the outer circumferential surface can be understood as a condition for inducing easy stacking of artificial fish secs of the same size.

In addition, the projecting portion 13 at the position closest to the frame leg 11a can prevent the sea cucumber from eroding the credit artificial ear candle 1. 6, the outer circumferential surface and the inner circumferential surface of the frame 11 are provided in the form of a saw tooth due to the plurality of projections 13. [ In this case, the side projections 13 in the direction of the frame leg 11a that come into contact with the ground can prevent the frame 11 from completely sinking into the load.

More specifically, the stacking of the artificial ear saws 1 improves the load and accelerates the encroachment of the frame 11 located at the lower part. However, since the above-described lateral direction protrusion 13 rubs against the ground, So as to resist the settlement of the lower stacked frame 11.

The projections 13 can be spaced apart from each other by more than the width of the frame legs 11a.

In this regard, the space spaced between the projections 13 can be understood as the recess 15. Generally, sea cucumbers have a friendly response to artificial fish. Especially, red sea ginseng is known to exhibit strong stomach uptake in artificial fish (1). Therefore, a large amount of sea cucumber can be formed and stuck in the concave portion 15. Particularly, in the sea cucumber of the proposed recess 15, the portion 15a in which the leg 11a of the frame to be positioned at the upper portion in the stacking of the credit artificial fish candle 1 is inserted, It is possible to maintain a space that is wider than the width. Through this, an additional opening 30 may be formed between the upper artificial ear and the lower artificial ear. Therefore, it is possible to easily form additional space for accommodating the sea cucumber growing in the seabed.

In particular, the growth of sea cucumbers depends on the density of the species in different conditions. If the sea cucumbers contain less than 10,000 individuals, the growth rate of each individual can be improved, but economical problems due to the low density can occur. On the other hand, in the case of exceeding 15,000 individuals, the density of the individual becomes higher, the growth rate of the sea cucumber is lowered, and the survival rate is also affected. Accordingly, the sea cucumber according to the present invention can control the population density of sea cucumbers by adjusting the density of sea cucumbers by utilizing a structure in which artificial fishes can be stacked and expanded easily to accommodate an appropriate number of individuals, There is an advantage that it can be increased.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. will be. Therefore, the scope of the present invention should not be limited to the above-described embodiments, but should be determined by all changes or modifications derived from the scope of the appended claims and equivalents of the following claims.

[Description of Symbols]

1: Sea cucumber is a credit artificial fish

11: Frame

11a: frame leg

13:

130: Entrance and exit

15:

15a: leg engagement space

30: opening

31: First format space

33: The second format space

Claims

In an artificial fish candle serving as a shelter for sea cucumbers,

A frame having an opening in which the sea cucumber inhabits and having a curved arch structure for supporting an upper load of the opening; And

And a projection formed on an outer circumferential surface of the frame and protruding along the longitudinal direction of the frame and having an access hole penetrating through the frame so that the sea cucumber can be inserted into the opening,

The projection

Wherein the plurality of sea cucumbers are separated from each other so that a part of a frame of a credit artificial fisher is inserted and stacked on the outer surface of the frame.
The method according to claim 1,

The frame includes:

The bottom surface is opened and the longitudinal section of the < [Lambda] > 'shape is elongated in the longitudinal direction,

The sea cucumber is part of the frame and is inserted into the spacing space of the protruding part and stacked on the outer circumferential surface of another frame.
The method according to claim 1,

The projection

The sea cucumber having an inside diameter of 10 to 20 cm is a credit artificial fish.
The method according to claim 1,

The projection

The sea cucumber not formed in the center line in the longitudinal direction on the outer peripheral surface of the frame so that a part of another frame can be inserted and laminated at the center of the outer peripheral surface of the frame.
The method of claim 1, wherein

The projection

The sea cucumbers separated from each other by a width equal to or greater than a width of a part of a frame inserted in a credit artificial fisher are credit artificial fishes.
The method of claim 1, wherein

The frame includes:

The first sea cucumber having one end in the longitudinal direction and having the same structure as the credit artificial ear seconds is inserted between protrusions of the credit artificial ear seconds,

And the other end of the sea cucumber having the same structure as the credit artificial fish second is inserted between protrusions of the credit artificial fish second,

Wherein the first sea cucumber is a credit artificial fish second and the second sea fish is a credit artificial fish second.