Artificial fish nest

Abstract

The utility model discloses an artificial fish nest which comprises a first floating frame and a first adhesion substrate hung on the first floating frame. The first floating frame is in a spiral shape, and the first floating frame is vertically arranged in water. According to the artificial fish nest, the first floating frame is arranged to be spiral, incubation of floating fish eggs is facilitated, meanwhile, water surface and underwater space can be fully utilized, the artificial fish nest is suitable for water bodies of different depths, spatial heterogeneity of fish habitat environments is increased, biological diversity is effectively improved, and water body ecology is restored; furthermore, the artificial fish nest adopts a double-layer obstetric table structure formed by the first floating frame and the second floating frame, on one hand, the space and the area of spawning of fishes can be enlarged, on the other hand, heavier fish eggs on the upper-layer obstetric table can fall into the second floating frame, and the survival rate and the hatching rate of the eggs and the utilization rate of the fish nest are improved.

Description

Technical Field

[0001] The utility model belongs to the field of aquatic application, and in particular relates to an artificial fish nest. Background Art

[0002] With the construction of reservoirs in various places, the ecological environment of rivers changes when the reservoirs regulate water storage, causing the spawning environment needed for the reproduction of many sinking fish to disappear. For example, the eggs laid by sinking fish on the aquatic plant substrate in shallow coastal areas are easily exposed to the air and die due to desiccation when the water level drops. These fish have lost their natural reproduction conditions, and the number and species of fish have dropped sharply. The protection and improvement of fish habitats have received more and more attention.

[0003] Artificial fish nests, as an artificial facility that facilitates fish reproduction and habitat, have been widely used.

[0004] However, the existing artificial fish nest structure is relatively simple, cannot fully utilize the water space where it is located, and cannot meet the breeding needs of fish at different water depths. Utility Model Content

[0005] In order to solve the above problems, the utility model proposes an artificial fish nest.

[0006] The utility model discloses an artificial fish nest, comprising a first floating frame and a first adhesive matrix suspended on the first floating frame;

[0007] The first floating frame is in a spiral shape, and the first floating frame is vertically arranged in water.

[0008] Preferably, the artificial fish nest further comprises a plurality of second floating frames suspended on the first floating frames.

[0009] Each of the second floating frames is a mesh structure, and the water level of each of the second floating frames is lower than that of the first adhesive matrix;

[0010] A second adhesive matrix is ​​laid on the second floating frame.

[0011] Preferably, each of the second floating frames is a hemispherical mesh structure.

[0012] Preferably, the number of the first floating frames is multiple.

[0013] A plurality of the first floating frames are connected in series in the water along a horizontal direction.

[0014] The first floating frame is in a trumpet shape that gradually contracts along the water depth direction.

[0015] Preferably, the artificial fish nest further comprises a protective cover;

[0016] The protection cover is arranged around the plurality of first floating frames, and a preset number of holes are provided on the protection cover.

[0017] The protective cover is cylindrical in shape with a diameter of 1-2 m, and the diameter of each hole is 0.1-0.3 m.

[0018] Preferably, the artificial fish nest further comprises a counterweight;

[0019] The counterweight is suspended on the first floating frame.

[0020] Optionally, the first adhesive substrate is at least one of aquatic plants, palm flakes, and hatching brushes.

[0021] Compared with the prior art, the utility model has the following beneficial effects:

[0022] (1) The artificial fish nest of the utility model sets the first floating frame in a spiral shape, which is conducive to the hatching of floating fish eggs. At the same time, it can make full use of the water surface and underwater space, is suitable for water bodies of different depths, increases the spatial heterogeneity of fish habitats, effectively improves biodiversity, and repairs water ecology;

[0023] (2) The double-layer spawning bed structure formed by the first floating frame and the second floating frame adopted in the artificial fish nest of the utility model can not only expand the spawning space and area of ​​fish, but also allow the heavier fish eggs in the upper spawning bed to fall into the second floating frame, thereby improving the survival rate and hatching rate of eggs and the utilization rate of the fish nest;

[0024] (3) The artificial fish nest of the utility model adopts adhesive substrates with affinity to fish, such as water grass, palm flakes, and hatching brushes, which enhances the attraction to fish, facilitates the attachment and collection of sticky eggs, and improves the collection rate of sticky eggs. Therefore, the utility model has strong practicality;

[0025] (4) The utility model artificial fish nest connects multiple first floating frames in series, which has a stable structure and is applicable to a wider water area;

[0026] (5) The artificial fish nest of the utility model is provided with a protective cover around the plurality of first floating frames, which can prevent the fish from being disturbed and harmed;

[0027] (6) The shape of the second floating frame of the artificial fish nest of the utility model is similar to the shape of the nest in natural waters. Compared with the spawning pond, it avoids the situation that the sticky eggs are concentrated in the corners, resulting in the sticky eggs being clumped and lacking oxygen so that the fertilized eggs cannot be hatched;

[0028] (7) The utility model can increase or decrease the mass of the counterweight manually to achieve the free rise and fall of the artificial fish nest as the water level of the reservoir changes, and can be freely spliced ​​in multiple directions according to the on-site environment, thereby enhancing the adaptability to complex water environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of the utility model;

[0030] Figure 2 It is a top view of the utility model;

[0031] Figure 3 It is a side view of the utility model;

[0032] Figure 4 It is a schematic diagram of the structure of an artificial fish nest including a protective cover in one embodiment of the utility model.

[0033] In the figure, 1 is a first floating frame; 2 is a first adhesive matrix; 3 is a support member; 4 is a second floating frame; 5 is a protective cover; and 6 is a hole on the protective cover. DETAILED DESCRIPTION

[0034] like Figure 1 , Figure 2 As shown, the utility model discloses an artificial fish nest, comprising a first floating frame 1 and a first adhesive matrix 2 suspended on the first floating frame 1; optionally, the first adhesive matrix 2 is at least one of waterweed, palm leaves, and hatching brushes.

[0035] The first floating frame 1 is in a spiral shape, and the first floating frame 1 is vertically arranged in water.

[0036] In this embodiment, the first floating frame 1 is made of elastic and suspendable material. Specifically, the frame of the spiral first floating frame 1 is made of HP-PVC plastic pipe, and the foam board and buoy are bonded or tied to the uppermost end of the HP-PVC plastic pipe. The first adhesive matrix 2 such as water grass, bamboo leaves, palm leaves, and hatching brushes are hung on the spiral first floating frame 1. The spiral structure of the utility model can adapt to the reproduction of sticky egg fish in different water depths, and at the same time increase the space for hanging the first adhesive matrix 2, and increase the surface area available for use of the fish nest.

[0037] The artificial fish nest of the utility model adopts the first adhesive matrix 2 having affinity to fish, such as water grass, palm flakes, hatching brushes, etc., which enhances the attraction to fish, facilitates the attachment and collection of sticky eggs, and improves the collection rate of sticky eggs. Therefore, the utility model has strong practicality.

[0038] The artificial fish nest also includes a plurality of second floating frames 4 suspended on the first floating frames 1 by ropes, and between the ropes and the second floating frames 4 is a support member 3, the support member 3 is in the shape of a triangular pyramid formed by three iron wires or bamboos, and the support member 3 is connected to the second floating frames 4 by welding or by winding and binding with steel wire ropes;

[0039] Each second floating frame 4 is a mesh structure, and the water level of each second floating frame 4 is lower than the first adhesive matrix 2;

[0040] The second floating frame 4 is provided with a second adhesive matrix.

[0041] In this embodiment, the first floating frame 1 is used to provide an incubation environment for smaller floating fish eggs; the second floating frame 4 is used to provide an incubation environment for larger sinking fish eggs. The double-layer spawning bed structure formed by the first floating frame 1 and the second floating frame 4 can, on the one hand, expand the spawning space and area of ​​fish, and on the other hand, allow the heavier fish eggs in the upper spawning bed to fall into the second floating frame 4, thereby improving the survival rate and hatching rate of the eggs and the utilization rate of the fish nest.

[0042] Each second floating frame 4 is a hemispherical mesh structure.

[0043] like Figure 1 As shown, the hemispherical mesh structure is specifically a hemispherical overall frame welded by three arc-shaped iron frames and a circular iron ring, the inner surface of the hemisphere is a wire mesh, and natural materials such as rocks and branches are laid on the wire mesh.

[0044] The appearance of the second floating frame 4 of the artificial fish nest of the utility model is similar to the shape of nests in natural waters. Compared with the spawning pond, it avoids the situation that the sticky eggs are concentrated in the corners, resulting in the sticky eggs being clumped and lacking oxygen so that the fertilized eggs cannot be hatched.

[0045] Preferably, there are multiple first floating frames 1.

[0046] A plurality of first floating frames 1 are connected in series in the water along a horizontal direction.

[0047] Specifically, the utility model uses a plurality of first floating frames 1 to be tied in series by using steel wire ropes, nylon ropes, cable ties or brown sheet bundles. Taking steel wire ropes as an example, a plurality of steel wires are twisted into bundles to form a steel wire rope, and the two ends of the same steel wire rope are respectively wound around two adjacent first floating frames 1, preferably at the same height of the two adjacent first floating frames 1. The number of steel wire ropes can be flexibly set according to the size of the two first floating frames 1.

[0048] The artificial fish nest of the utility model connects a plurality of first floating frames 1 in series, has a stable structure and is applicable to a wider water area.

[0049] The first floating frame 1 is in the shape of a trumpet that gradually contracts along the water depth direction.

[0050] like Figure 4 As shown, the artificial fish nest also includes a protective cover;

[0051] The protection cover is arranged around the plurality of first floating frames 1 , and a preset number of holes are provided on the protection cover.

[0052] The protective cover is cylindrical in shape with a diameter of 1-2 m, and the diameter of the hole 6 on the protective cover is 0.1-0.3 m.

[0053] The utility model provides a protective cover 5 around a plurality of first floating frames 1 to prevent fish from being disturbed and harmed. The first floating frames 1 are configured to be trumpet-shaped and gradually shrink along the water depth direction, which can improve its stability on the one hand and facilitate the arrangement of the protective cover 5 on the other hand.

[0054] Preferably, the artificial fish nest further comprises a counterweight;

[0055] The counterweight is suspended on the first floating frame 1 .

[0056] The material of the counterweight can be natural or artificial so as not to pollute the water body, for example but not limited to being made of rock, metal, etc., and its function is to make the first floating frame in a vertical state in the water. In the case where the first floating frame is a trumpet shape that gradually shrinks along the water depth direction, the counterweight is preferably connected to the bottom of the first floating frame by a rope.

[0057] The utility model can realize the free lifting and lowering of the artificial fish nest with the change of the water level of the reservoir by manually increasing or decreasing the mass of the counterweight, and can be freely spliced ​​in multiple directions according to the on-site environment, thereby enhancing the adaptability to complex water environments.

[0058] In a preferred embodiment, the first floating frame 1 is connected to an underwater fixed structure. The underwater fixed structure is preferably an anchor. The first floating frame 1 is connected to the underwater fixed structure by a rope. The underwater fixed structure can ensure that the artificial fish nest of the utility model is fixed in a certain water depth range, and by adjusting the rope, the first floating frame 1 floats up and down with the rise and fall of the water level, so that the fish nest is always floating on the water surface.

[0059] When the artificial fish nest of the utility model is used, fish can enter the first floating frame 1 and the second floating frame 4 through the holes 6 on the protective cover, and inhabit and lay eggs on the first adhesive matrix 2 and the second adhesive matrix.

[0060] Compared with the prior art, the utility model has the following beneficial effects:

[0061] (1) The artificial fish nest of the utility model sets the first floating frame in a spiral shape, which is conducive to the hatching of floating fish eggs. At the same time, it can make full use of the water surface and underwater space, is suitable for water bodies of different depths, increases the spatial heterogeneity of fish habitats, effectively improves biodiversity, and repairs water ecology;

[0062] (2) The double-layer spawning bed structure formed by the first floating frame and the second floating frame adopted in the artificial fish nest of the utility model can not only expand the spawning space and area of ​​fish, but also allow the heavier fish eggs in the upper spawning bed to fall into the second floating frame, thereby improving the survival rate and hatching rate of eggs and the utilization rate of the fish nest;

[0063] (3) The artificial fish nest of the utility model adopts adhesive substrates with affinity to fish, such as water grass, palm flakes, and hatching brushes, which enhances the attraction to fish, facilitates the attachment and collection of sticky eggs, and improves the collection rate of sticky eggs. Therefore, the utility model has strong practicality;

[0064] (4) The utility model artificial fish nest connects multiple first floating frames in series, which has a stable structure and is applicable to a wider water area;

[0065] (5) The artificial fish nest of the utility model is provided with a protective cover around the plurality of first floating frames, which can prevent the fish from being disturbed and harmed;

[0066] (6) The shape of the second floating frame of the artificial fish nest of the utility model is similar to the shape of the nest in natural waters. Compared with the spawning pond, it avoids the situation that the sticky eggs are concentrated in the corners, resulting in the sticky eggs being clumped and lacking oxygen so that the fertilized eggs cannot be hatched;

[0067] (7) The utility model can increase or decrease the mass of the counterweight manually to achieve the free rise and fall of the artificial fish nest as the water level of the reservoir changes, and can be freely spliced ​​in multiple directions according to the on-site environment, thereby enhancing the adaptability to complex water environments.

[0068] The above are only a few embodiments of the present application and do not constitute any form of limitation to the present application. Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application. Any technician familiar with the profession, without departing from the scope of the technical solution of the present application, using the technical content disclosed above to make slight changes or modifications are equivalent to equivalent implementation cases and fall within the scope of the technical solution.

Claims

1. An artificial fish nest, characterized in that: comprising a first floating frame and a first adhesive matrix suspended on the first floating frame; The first floating frame is in a spiral shape, and the first floating frame is vertically arranged in water.

2. The artificial fish nest according to claim 1, characterized in that: It also includes a plurality of second floating frames suspended on the first floating frames, Each of the second floating frames is a mesh structure, and the water level of each of the second floating frames is lower than that of the first adhesive matrix; A second adhesive matrix is ​​laid on the second floating frame.

3. The artificial fish nest according to claim 2, characterized in that: Each of the second floating frames is a hemispherical mesh structure.

4. The artificial fish nest according to any one of claims 1 to 3, characterized in that: There are multiple first floating frames. A plurality of the first floating frames are connected in series in the water along a horizontal direction.

5. The artificial fish nest according to claim 4, characterized in that: The first floating frame is in a trumpet shape that gradually contracts along the water depth direction.

6. The artificial fish nest according to claim 5, characterized in that: Also includes protective cover; The protection cover is arranged around the plurality of first floating frames, and a preset number of holes are provided on the protection cover.

7. The artificial fish nest according to claim 6, characterized in that: The protective cover is cylindrical in shape with a diameter of 1-2 m, and the diameter of each hole is 0.1-0.3 m.

8. The artificial fish nest according to claim 1, characterized in that: Also includes counterweights; The counterweight is suspended on the first floating frame.

9. The artificial fish nest according to claim 1, characterized in that: The first adhesive matrix is ​​at least one of aquatic plants, palm flakes, and hatching brushes.

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