Stichopus japonicus trapping device for artificial fish reef area

Abstract

The utility model relates to an artificial fish reef stichopus japonicus proliferation catching technology, in particular to a stichopus japonicus trapping device for an artificial fish reef area. The device adopts a net cage structure, a net cage frame is made of corrosion-resistant metal profiles or PE profiles, soft nylon nettings are fixed on the net cage frame to form the bottom of the net cage and the periphery of the cage body, and movable doors which are movably connected and can be opened and closed are arranged on the periphery of the cage body of the net cage, so that the stichopus japonicus in an artificial fish reef area can enter the cage body. According to the arrangement form and scale of an artificial fish reef area, fixed-point pile arrangement and throwing of the stichopus japonicus catching device are carried out, the stichopus japonicus catching device can be independently used and can be arranged in rows for use, arrangement is convenient, use is flexible, and the stichopus japonicus catching device is suitable for being used in various different artificial fish reef construction sea areas.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of seawater culture, relates to the artificial fish reef sea cucumber propagation's capture technology, concretely relates to a kind of sea cucumber trapping device for artificial fish reef area. BACKGROUND

[0002] Seawater culture is an important component of China's water product supply, accounting for 1 / 3 of total water product output. In recent years, with the rigid increase of demand for seawater products, and the nearshore culture capacity tends to saturation, the contradiction between industrial development and ecological environment, and other industrial status, the marine ranching ecological culture mode with artificial fish reef as the main means becomes the main development trend of seawater culture. The construction of artificial fish reef has great strategic significance and far-reaching historical significance for the construction of marine ranching, the restoration and improvement of marine ecological environment, the propagation and optimization of fishery resources, the rescue of rare and endangered species and the protection of biodiversity, and the promotion of sustainable and healthy development of marine economy.

[0003] Artificial fish reefs generally have obvious fish gathering effect, can prolong the time of fish staying in the reef area, expand the fishing ground, and make the fish proliferate. It has been found that the fish gathering and proliferation effect is good for fixed reef fish such as turbot, flatfish, sea bream, grouper, black snake, and six-line fish. The utilization rate and catch of fishing operation in artificial fish reef area is generally higher than that in the surrounding sea area, and the catch can be doubled. The effect of shallow sea propagation reef is also obvious and stable. Artificial fish reefs in the Yellow Sea and Bohai Sea are mainly used for the bottom planting and propagation of high-value sea cucumber, and also for the natural aggregation of crabs, snails, fish and other organisms. The traditional sea cucumber catching method in artificial fish reef area is underwater catching by divers, which is dangerous for the operators and has high labor cost. The catching difficulty is higher in some sea areas with turbid water or affected by wind and waves. In recent years, many research institutes and enterprises have focused on the development of underwater robots for sea cucumber catching in artificial fish reef area, but there is still a distance from practical application. SUMMARY

[0004] To solve the above technical problems, the utility model provides a kind of sea cucumber trapping device and method for artificial fish reef area, utilize the biological habit of sea cucumber, in the sea cucumber feeding season, use trapping device to carry out catching, to solve the dangerousness of traditional diving catching, cost is high, is limited by sea water transparency and other many disadvantages.

[0005] The utility model adopts the following technical solutions:

[0006] The sea cucumber trapping device for artificial fish reef area adopts net cage structure, the net cage frame is made of corrosion-resistant metal section or PE section, and the soft nylon net clothes is fixed on the net cage frame to form the bottom of the net cage and the four sides of the box body;

[0007] The movable door is movably connected to the box body and can be opened and closed.

[0008] Further, the movable door is a hinge net, the upper end of the hinge net is movably connected to a hinge fixed shaft through a hinge sleeve, the hinge sleeve is sleeved with the hinge fixed shaft and can rotate around the hinge fixed shaft, and the hinge fixed shaft is fixedly installed on the net cage frame; the lower end of the hinge net is connected to a floating ball to ensure that the lower end of the hinge net is opened upward under the action of the floating ball in the underwater use state, so that the sea cucumber in the artificial fish reef area can enter the net cage.

[0009] Further preferably, the hinge net is made of a hard net or a rigid frame and a soft nylon net.

[0010] Further preferably, the hinge net is installed on the outside of the box body, and the lower end of the hinge net extends outward and opens upward.

[0011] Further, the top of the net cage frame is connected to a cable winding and unwinding device, a positioning buckle is arranged on the cable winding and unwinding device, the positioning buckle is movably sleeved with a positioning cable, and the positioning cable is connected to a seabed positioning anchoring device, that is, the positioning buckle is sleeved outside the positioning cable and can slide along the positioning cable, and is used for positioning and releasing the sea cucumber trapping device and fixing the sea cucumber trapping device in the seabed use state.

[0012] Further preferably, the position of the positioning buckle on the cable winding and unwinding device is equal to the length of the side or the radius of the box body of the sea cucumber trapping device.

[0013] Further, the positioning buckle is a shackle or a sleeve ring.

[0014] Further, the top of the net cage frame is covered with a soft nylon net to prevent the trapped organisms from escaping.

[0015] Further, bait is placed in the net cage box, the bait is a solid granular bait with slow-release capability, and the bait is not dispersed when being released, and gradually dispersed after the sea cucumber trapping device is stabilized on the seabed.

[0016] The method for trapping sea cucumbers in an artificial fish reef area by using the above-mentioned sea cucumber trapping device for an artificial fish reef area is specifically implemented as follows:

[0017] (1) Selection of sea cucumber trapping device release position

[0018] The interval area between the reef bodies of the artificial fish reef area is selected as the positioning release position of the sea cucumber trapping device, the positioning anchoring device is driven into the seabed for positioning, the positioning cable is connected to the positioning anchoring device, the positioning floating ball is tied to the top end of the positioning cable, and the positioning floating ball floats on the sea surface for positioning and identification.

[0019] (2) The sea cucumber trapping device is put at the fixed point and trapped

[0020] The sea cucumber trapping device is put at the fixed point and trapped

[0021] After the sea cucumber trapping device is put into the sea, the lower end of the hinge mesh of the movable door is opened upward under the action of the float ball, so that the sea cucumber in the artificial fish reef area enters the sea cucumber trapping device under the action of the trapping bait.

[0022] (3) The sea cucumber trapping device is collected

[0023] When the sea cucumber trapping device is collected, the collecting and releasing cable connected with the sea cucumber trapping device is released at the fixed point float ball, and the collecting and releasing cable is lifted, at this time, the float force of the float ball connected with the lower end of the hinge mesh is smaller than the flow force, the hinge mesh is closed, and the sea cucumber in the sea cucumber trapping device is collected.

[0024] (4) Steps (1) to (3) are repeated.

[0025] Further, the sea cucumber trapping device is put at the fixed point and trapped, for the artificial fish reef area sea area with regular layout of strip or reef body spacing, the strip-shaped interval area between two artificial fish reef groups or the strip-shaped interval area that can be divided is selected as the sea cucumber trapping device put position, two fixed point anchoring devices are punched into the seabed along the length direction of the strip-shaped interval area, the fixed point anchoring devices are connected with the fixed point cables, the top ends of the fixed point cables are connected with the fixed point float balls, the fixed point float balls float on the sea surface, the fixed point cables are connected with the fixed cable between the top parts, the fixed cable is connected with a plurality of sea cucumber trapping devices through the collecting and releasing cables, and a plurality of fixed point float balls are arranged on the fixed cable and float on the sea surface.

[0026] Further, the length of the fixed cable is not more than 120 meters.

[0027] The beneficial effects of the utility model compared with the prior art are as follows:

[0028] After the sea cucumber in the artificial fish reef area ends summer dormancy and winter dormancy, the sea cucumber will come out from the artificial fish reef body gap to forage, with the increase of the density of the sea cucumber around the artificial fish reef body, the amount of natural bait will gradually decrease and cannot meet the feeding demand of the sea cucumber, and the activity range of the sea cucumber will gradually expand.

[0029] 1. The sea cucumber catching device has simple and light structure, the movable door with automatic switch is arranged by using buoyancy principle, the movable door is automatically opened under the action of buoyancy when being used in seawater, and the movable door is automatically closed under the action of water flow impact force in the lifting process, so that power and operation are not needed, labor is saved, production cost is low, and the device is easy to realize.

[0030] 2. The new sea cucumber catching device is provided with a cable winding and unwinding device, a positioning buckle is movably connected with a fixed cable, the fixed point is easily realized, and the cable winding and unwinding device is directly lifted when being used, so that time and labor are saved, the traditional diving catching has the problems of great danger, high cost and seawater transparency limitation, and the sea cucumber catching device can be repeatedly used to reduce the use cost.

[0031] 3. The new sea cucumber catching device is arranged according to the arrangement form and scale of the artificial fish reef area, the sea cucumber catching device is arranged at the fixed point, and the device can be independently used or arranged in rows, so that the device is convenient to arrange and flexible to use, and is suitable for various artificial fish reef construction sea areas. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0033] Figure 1 is a structural schematic view of the sea cucumber catching device for the artificial fish reef area of the present application;

[0034] Figure 2 is a top view of Figure 1 ;

[0035] Figure 3 is a side view of Figure 1 ;

[0036] Figure 4 is a fixed point throwing usage state view of the sea cucumber catching device for the artificial fish reef area in embodiment 1;

[0037] Figure 5 is a flow chart of the artificial fish fixed point throwing usage of the sea cucumber catching device for the artificial fish reef area in embodiment 1;

[0038] Figure 6 is a flow chart of the artificial fish fixed point throwing usage of the sea cucumber catching device for the artificial fish reef area in embodiment 2 in the strip-shaped or reef body spacing fixed regular layout artificial fish reef area;

[0039] Figure 7 is the fixed-point launching use state diagram of the sea cucumber trapping device in the sea cucumber trapping method of the artificial reef area in Example 2;

[0040] In the figure, 1 is a nylon net, 2 is a hinge net, 3 is a hinge sleeve, 4 is a floating ball, 5 is a net cage frame, 6 is a hinge fixing shaft, A is a sea cucumber trapping device, B is a fixed-point anchoring device, D is a fixed-point cable, F is a fixed-point floating ball, C is a positioning buckle, E is a cable winding and unwinding device, and G is a fixed cable. DETAILED DESCRIPTION

[0041] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, rather than any limitation on the present application and its application or use.

[0042] Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments. Example 1

[0043] The sea cucumber trapping device and method for artificial reef area of the present application are used in the construction of artificial fish reefs in the stone reef sea area of Dalian Changhe County.

[0044] As shown in Figures 1 to 3 A sea cucumber trapping device A for an artificial reef area adopts a square net cage structure, a net cage frame 5 is made of corrosion-resistant metal profiles welded together, a soft nylon net 1 is fixed on the net cage frame 5 to form a net cage, a movable door capable of opening and closing up and down is arranged on the outer periphery of the net cage body, the movable door is a hinge net 2, the hinge net 2 is made of a hard net, the upper end of the hinge net 2 is movably connected to a hinge fixing shaft 6 through a hinge sleeve 3, the hinge sleeve 3 is connected to the hinge fixing shaft 6 and can rotate around the hinge fixing shaft 6, and the hinge fixing shaft 6 is welded to the net cage frame 5; the lower end of the hinge net 2 is connected to a floating ball 4 to ensure that the lower end of the hinge net 2 extends outward and opens upward when used underwater, so that sea cucumbers in the artificial reef area can enter the net cage.

[0045] As shown in Figure 4As shown, when the sea cucumber trapping device A is in use, the top of the net cage frame 5 is connected to the launching and retracting cable E. The launching and retracting cable E is equipped with a positioning buckle C, which is a shackle. During deployment, the positioning buckle C is movably connected to the fixed-point cable D. The fixed-point cable D is connected to the seabed fixed-point anchoring device B. In this embodiment, the fixed-point anchoring device B is a wooden stake. The positioning buckle C is fitted over the fixed-point cable D and slides along the fixed-point cable D, thereby achieving fixed-point deployment of the sea cucumber trapping device A and its fixation during seabed use. To make the fixed-point deployment of the sea cucumber trapping device A more accurate and its position on the seabed stable after deployment, the position of the positioning buckle C on the launching and retracting cable D is preferably such that the distance 'a' from the positioning buckle C to the connection point between the launching and retracting cable D and the sea cucumber trapping device A is equal to the side length of the sea cucumber trapping device box. If the sea cucumber trapping device A is a circular box, then 'a' is preferably equal to the radius of the circular box.

[0046] To prevent sea cucumbers trapped in the sea cucumber trapping device A in the artificial reef area from escaping, the top of the net cage can also be covered with a soft nylon net 1.

[0047] like Figure 5 As shown, the specific steps for using the above-mentioned sea cucumber trapping device in artificial reef areas to trap sea cucumbers in artificial reef areas are as follows:

[0048] (1) Selection of the placement location of sea cucumber trapping device A

[0049] In this embodiment, natural stone reefs are placed in the artificial reef area. The natural stones are piled up to form unit reefs. The intervals between the unit reefs serve as the fixed-point deployment positions for the sea cucumber trapping device A. The fixed-point anchoring device B is driven into the seabed for fixed-point positioning. The fixed-point anchoring device B is equipped with a fixed-point cable D. The top of the fixed-point cable D is tied to a fixed-point buoy F. The fixed-point buoy F floats on the sea surface for positioning and marking.

[0050] (2) Sea cucumber trapping device A is deployed at a fixed point.

[0051] At the end of the sea cucumber's summer or winter hibernation, sea cucumber trapping device A is deployed. The trapping device A contains bait, preferably spherical in shape with a diameter of 6-8 cm. The bait has a slow-release capability and does not disperse upon deployment. It gradually disperses after the trapping device A stabilizes on the seabed. During deployment, the positioning buckle C on the retrieval cable E is movably connected to the fixed-point cable D. Then, the sea cucumber trapping device A is deployed into the sea along the fixed-point cable D with added weight, achieving a fixed-point deployment. Finally, the end of the retrieval cable E on the sea surface is tied to the fixed-point buoy F.

[0052] After the sea cucumber trapping device A is deployed into the sea, the lower end of the hinged mesh 2 of its movable door opens upward under the action of the buoy 4, allowing sea cucumbers and other organisms in the artificial reef area to enter the sea cucumber trapping device A under the action of the bait.

[0053] (3) sea cucumber trapping device A harvesting

[0054] According to the artificial fish reef area sea cucumber breeding density, the sea cucumber trapping device A is released for 2-3 days, and the release and recovery cable E connected with the sea cucumber trapping device A is released at the fixed point floating ball F, and the release and recovery cable E is lifted, at this time, the floating ball 4 connected with the lower end of the hinge net 2 has a smaller buoyancy than the water flow force, and the hinge net 2 is closed outside the sea cucumber trapping device A box, so that the sea cucumbers, snails and fish in the sea cucumber trapping device A box are harvested, and since the hinge net 2 of the movable door is closed outside the box, the sea cucumbers at the edge of the movable door are pushed into the box, and will not be pushed out of the box.

[0055] (4) Repeat steps (1) to (3). Example 2

[0056] The sea cucumber trapping device and method for artificial fish reef area are used to construct reefs in the sea area of Dalian Changhe County, and the sea cucumber is harvested in the artificial fish reef construction sea area, and the reef release layout is in a strip shape, that is, a strip-shaped interval area appears between the unit reefs.

[0057] In this embodiment, the structure of the sea cucumber trapping device A for artificial fish reef area is as shown in example 1, but the net cage frame 5 is made of PE profile, and the release and recovery cable E is not provided with a positioning buckle C, and the hinge net 6 is made of a PE profile frame and a soft nylon net.

[0058] As shown in Figure 6 The method for artificial fish reef area sea cucumber trapping using the above-mentioned sea cucumber trapping device for artificial fish reef area is shown, and the specific implementation steps are as follows:

[0059] (1) Sea cucumber trapping device A release position selection

[0060] Two strip-shaped interval areas of artificial fish reef groups are selected as the release positions of the sea cucumber trapping device A, and the two fixed point anchoring devices B with fixed point cables D are driven into the seabed along the length direction of the strip-shaped interval area in the strip-shaped interval area, the top end of the fixed point cable D is connected with the fixed point floating ball F, the fixed point floating ball F floats on the sea surface, the fixed point cables D at the top are connected with the fixed cable G, the length of the fixed cable G is 100 meters, and a plurality of fixed point floating balls F are arranged on the fixed cable G to clearly mark the position of the fixed cable G and increase the buoyancy.

[0061] (2) Sea cucumber trapping device A point release and sea cucumber trapping

[0062] When the sea cucumber enters summer dormancy or winter dormancy, the sea cucumber trapping device A is put into the sea, the bait is placed in the sea cucumber trapping device A, the bait is a solid granular bait, the shape is preferably spherical, the diameter is 6-8 cm, the bait has slow-release capability, and the sea cucumber trapping device A is stable on the seabed and gradually disperses. Figure 7

[0063] After the sea cucumber trapping device A is put into the sea, the lower end of the hinge mesh 2 of the movable door around the sea cucumber trapping device A is opened upward under the action of the floating ball 4, so that the sea cucumber and other organisms in the artificial reef area enter the sea cucumber trapping device A under the action of the bait.

[0064] (3) Sea cucumber trapping device A collection

[0065] According to the sea cucumber breeding density in the artificial reef area, the sea cucumber trapping device A is collected after being put into the sea for 2-3 days, the collection is performed by disconnecting the collection and release cable E connected to the sea cucumber trapping device A from the fixed cable G, and lifting the collection and release cable E, at this time, the buoyancy of the floating ball 4 connected to the lower end of the hinge mesh 2 is smaller than the flow force, the hinge mesh 2 is closed, and the sea cucumber, snail, fish and other organisms in the sea cucumber trapping device A are collected.

[0066] (4) Repeat steps (1) to (3) until the collection is completed.

[0067] The sea cucumber trapping device and method for the artificial reef area are proposed by combining the sea cucumber biological habits with the artificial reef construction application, the fixed-point pile arrangement and the sea cucumber trapping device are performed according to the arrangement form and scale of the artificial reef area, the device can be independently used or arranged in rows, the device is convenient to arrange and flexible to use, and is suitable for various artificial reef construction sea areas; the device uses the buoyancy principle to set the movable door, the movable door is automatically opened in the sea water, the movable door is automatically closed in the lifting process under the action of the flow impact force, no additional power and operation are needed, the device is labor-saving and low in manufacturing cost, and is easy to realize; the collection is performed by directly lifting the collection and release cable, the mechanical collection saves time and labor, solves the problems of great danger, high cost and sea water transparency limitation in the traditional diving collection, and the like, the sea cucumber trapping device and the like can be repeatedly used, and the use cost is reduced.

[0068] The embodiments of the utility model are described in detail in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range of ordinary skilled persons in the art without departing from the purpose of the utility model.​

Claims

1. A sea cucumber trapping device for an artificial reef area, characterized by, The net cage structure is adopted, the net cage frame is made of corrosion-resistant metal section or PE section, the soft nylon net clothes is fixed on the net cage frame to form the bottom and the four walls of the net cage, and the movable door capable of being opened and closed is arranged on the four walls of the net cage body.

2. The sea cucumber trapping device for artificial reef area according to claim 1, characterized in that, The movable door is a hinge net piece, the upper end of the hinge net piece is movably connected with a hinge fixed shaft through a hinge sleeve, the hinge sleeve is sleeved with the hinge fixed shaft and can rotate around the hinge fixed shaft, and the hinge fixed shaft is fixedly installed on the net cage frame; the lower end of the hinge net piece is connected with a floating ball, so that the lower end of the hinge net piece is opened upward under the action of the floating ball in the underwater use state, and the sea cucumber in the artificial fish reef area can enter the net cage.

3. The sea cucumber trapping device for artificial reef area according to claim 2, characterized in that, The hinge net piece is made of hard net piece or rigid frame and soft nylon net clothes.

4. The sea cucumber trapping device for artificial reef area according to claim 2 or 3, characterized in that, The hinge net piece is installed on the outside of the box body, the lower end of the hinge net piece extends outward and opens upward.

5. The sea cucumber trapping device for artificial reef area according to claim 1, characterized in that, The top of the net cage frame is connected with a cable winding and unwinding rope, the cable winding and unwinding rope is provided with a positioning buckle, the positioning buckle is movably sleeved with the fixed cable, the fixed cable is connected with a seabed fixed anchoring device, that is, the positioning buckle is sleeved outside the fixed cable and can slide along the fixed cable, and is used for fixed-point launching of the sea cucumber trapping device and fixing in the seabed use state.

6. The sea cucumber trapping device for artificial reef area according to claim 5, wherein, The position of the positioning buckle on the cable winding and unwinding rope is equal to the length of the side or the radius of the box body of the sea cucumber trapping device.

7. The sea cucumber trapping device for artificial reef area according to claim 5 or 6, characterized in that, The positioning buckle is a buckle or a sleeve ring.

8. The sea cucumber trapping device for artificial reef area according to claim 1, characterized in that, Further, the top of the net cage frame is covered with soft nylon net clothes to prevent the escape of the trapped organisms in the box body.

9. The sea cucumber trapping device for artificial reef area according to claim 1, characterized in that, The sea cucumber trapping device is provided with bait, and the bait is solid granular bait with slow-release capacity.

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