Aquatic animal habitat protection device and use method thereof

Abstract

The invention discloses an aquatic animal habitat protection device and a use method thereof, and belongs to the technical field of aquatic animal protection. The device comprises a main body structure, the main body structure is of an ellipsoidal shell structure, a biological channel is formed in one end of a long axis of the main body structure, the biological channel is communicated with the internal space of the main body structure, and a stacking connecting mechanism is arranged at one end of a short axis of the main body structure in a protruding mode. And the other end of the short shaft is provided with a stacking connecting hole group. When a plurality of aquatic animal habitat protection devices need to be stacked, the stacking connection mechanism in the upper layer of the aquatic animal habitat protection device is inserted into the stacking connection hole group in the lower layer of the aquatic animal habitat protection device, so that the upper layer of the aquatic animal habitat protection device and the lower layer of the aquatic animal habitat protection device can be connected in an inserted manner, and the rest can be done in the same manner. All aquatic animal habitat protection devices can be quickly stacked, and the stacking operation is simple, time-saving and convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to a water animal habitat protection device and its use method, belonging to the technical field of water animal protection. BACKGROUND

[0002] Water animal habitat protection is an important means of protecting water animals. According to the survival habits and breeding rules of water animals, there are limited facilities that can provide habitat protection for water animals at the present stage, especially in newly built river channels and dredged rivers. If the water animal fertilized eggs sink into the river bottom with the water flow, they cannot hatch due to the influence of wind and waves, or they are eaten by other animals, which will seriously affect the reproduction of aquatic organisms. At present, water animal habitat protection is mainly based on environmental protection, and there are few habitat protection devices.

[0003] Therefore, the Chinese patent document with publication number CN115369822A discloses a water animal habitat protection device, which comprises: a hexagonal brick, a through hole is provided at the center of the hexagonal brick; a ring-shaped habitat plate is fixed on the inner wall of the through hole; and a support column is fixed at the lower end of the hexagonal brick and located at the six vertices of the hexagonal brick. By setting the hexagonal brick, it can be easily stacked, and by matching the through hole with the support column, the stability of the stacking can be improved, and the serious deviation of the protection device caused by long-time water flow can be prevented.

[0004] The above-mentioned water animal habitat protection device has two stacking methods: the first method is to stack the hexagonal bricks. A sleeve is first sleeved on the mounting plate, and the sleeve is fixed with the mounting plate by bolts or other means. Then, the hexagonal bricks are placed on the L-shaped support plate, so that the vertical plate of the L-shaped support plate extends into the through hole of the hexagonal brick, and the vertical plate of the L-shaped support plate abuts against the inner wall of the through hole of the hexagonal brick. Then, the next sleeve and hexagonal brick are placed, and the process is repeated until the hexagonal bricks are installed. The second method is to stack the first layer of hexagonal bricks, align each row and each column of hexagonal bricks, and keep the distance between adjacent two hexagonal bricks the same. Then, the second layer of hexagonal bricks is stacked, so that the four vertices of the second layer of hexagonal bricks are respectively located in the through holes of the four hexagonal bricks of the first layer, and the support columns at the other two vertices of the second layer of hexagonal bricks are respectively located in the gaps between the two adjacent hexagonal bricks of the first layer. The two vertices are symmetrically located with respect to the center of the hexagonal brick. The process is repeated until the hexagonal bricks are stacked.

[0005] However, the first stacking mode of the aquatic animal habitat protection device needs to be completed with the help of the mounting plate, the sliding sleeve and the L-shaped support plate, and in order to ensure the stability of the stacked aquatic animal habitat protection devices, at least three groups of mounting plates, sliding sleeves and L-shaped support plates need to be arranged, which leads to complicated, time-consuming and inconvenient stacking operation. SUMMARY

[0006] To solve the above technical problems, the present application provides an aquatic animal habitat protection device and a use method thereof.

[0007] The present application is realized by the following technical solutions: An aquatic animal habitat protection device, comprising a main body structure, wherein the main body structure is an ellipsoidal shell structure, a biological passage is arranged at one end of the long axis of the main body structure, and the biological passage is in communication with the internal space of the main body structure, a stacking connection mechanism is arranged at one end of the short axis of the main body structure, and a stacking connection hole group is arranged at the other end of the short axis of the main body structure.

[0008] A first rest platform is arranged at a position close to the stacking connection mechanism in the main body structure, and a plurality of water baffles are arranged on the first rest platform, and the water baffles are arranged perpendicularly to the biological passage.

[0009] The stacking connection mechanism comprises a leveling plate and a connecting pipe, one side of the leveling plate is connected with the main body structure, the other side of the leveling plate is provided with a plurality of fixing columns, the end of the fixing column away from the main body structure is conical, a recess is arranged on the side of the leveling plate away from the main body structure, the shape and size of the recess are matched with the shape and size of the outer wall of the end of the short axis of the main body structure away from the stacking connection mechanism, the central axis of the connecting pipe is collinear with the short axis of the main body structure, one end of the connecting pipe penetrates the leveling plate, the side wall of the main body structure and the first rest platform, and the other end of the connecting pipe is located at the middle part of the fixing column.

[0010] The stacking connection hole group comprises a pipe connection hole in communication with the internal space of the main body structure and a plurality of column connection holes, the pipe connection hole is coaxially arranged with the connecting pipe, the number of the column connection holes is consistent with the number of the fixing columns, and the column connection holes are coaxially arranged one by one corresponding to the fixing columns. A plug hole is arranged on the first rest platform at a position corresponding to the column connection hole.

[0011] A second protection water passing assembly is arranged at the end of the main body structure away from the biological passage in the long axis direction, the second protection water passing assembly is arranged perpendicularly to the biological passage, the internal space of the main body structure is divided into two parts by the second protection water passing assembly, the space on the side of the second protection water passing assembly away from the biological passage is a small aquatic animal refuge area, and a second rest platform is arranged in the small aquatic animal refuge area.

[0012] The first rest platform and the second rest platform are provided with a plurality of habitat grooves with different sizes, and the first rest platform and the second rest platform are provided with fish egg adhesion substrates. The fish egg adhesion substrate is egg gravel, shell or wood.

[0013] The water inlet of the biological channel is provided with an annular step, and the water inlet of the biological channel is provided with a first protective water passing assembly.

[0014] The first protective water passing assembly and the second protective water passing assembly are protective nets or perforated plate pieces.

[0015] The outer wall of the main body structure is provided with water plant culture boxes at both ends of the short axis.

[0016] A use method of an aquatic animal habitat protection device, comprising the following steps: Step one, place the lowermost aquatic animal habitat protection device into a river channel, insert the fixing column in the aquatic animal habitat protection device into the riverbed bottom, and according to the requirement, select whether to insert the lower end of the connecting pipe into the riverbed; Step two, stack the second-to-last aquatic animal habitat protection device on the lowermost aquatic animal habitat protection device, insert the connecting pipe in the second-to-last aquatic animal habitat protection device into the pipe connecting hole in the lowermost aquatic animal habitat protection device, and insert the fixing column in the second-to-last aquatic animal habitat protection device into the column connecting hole and the insertion hole in the lowermost aquatic animal habitat protection device; Step three, refer to step two, complete the stacking and installation of the remaining aquatic animal habitat protection devices from bottom to top, at this time, the biological channels in all aquatic animal habitat protection devices are arranged along the river flow direction and face the upstream of the river; Step four, plant the water plants that need to be cultured in the water plant culture boxes of all aquatic animal habitat protection devices.

[0017] The beneficial effects of the present application are: 1. When multiple aquatic habitat protection devices need to be stacked, the stacking connection mechanism in the upper aquatic habitat protection device is inserted into the stacking connection hole group in the lower aquatic habitat protection device, thereby achieving the insertion connection of the upper and lower aquatic habitat protection devices, and in this way, the stacking work of all aquatic habitat protection devices can be quickly completed, and the stacking operation is simple, time-saving and convenient. The aquatic habitat protection device can provide a habitat for aquatic animals, which can be used as a place for aquatic animals to avoid predation, fertilized egg incubation and young growth, and can provide a living place for benthic animals and the like under the condition that the aquatic habitat system is not perfect.

[0018] 2. The connecting pipe serves to connect the upper and lower aquatic habitat protection devices and to connect the main structures in the two protection devices. At the same time, the fixed column is not only inserted into the column connection hole, but also further inserted into the insertion hole, and the fixed column is matched with the small gap between the column connection hole and the insertion hole, thereby ensuring the reliability of the insertion connection of the upper and lower aquatic habitat protection devices and improving the convenience of the stacking operation of the upper and lower aquatic habitat protection devices.

[0019] 3. The main structure in the aquatic habitat protection device adopts an ellipsoidal structure in a streamline shape, which can disperse most of the water flow impact force to the surrounding, and can further reduce the impact of water flow on the aquatic habitat protection device, thereby improving the installation stability of the device in water.

[0020] 4. In order to prevent large aquatic animals from entering the aquatic habitat protection device, while ensuring that small aquatic animals in the device can go out after growing up, the present application uses an annular step to limit the first protective water passing assembly in the long axis direction of the main structure, and the top of the first protective water passing assembly is hingedly connected with the main structure. After the aquatic habitat protection device is stacked and installed in water, the biological channel is arranged along the flow direction of the river and faces the upstream of the river, so that the first protective water passing assembly is abutted on the annular step under the action of its own weight and the impact of river water, and covers the biological channel, thereby preventing large aquatic animals from entering the aquatic habitat protection device, while small aquatic animals can enter the aquatic habitat protection device through the holes in the first protective water passing assembly. When small aquatic animals in the aquatic habitat protection device grow up and need to go out, the first protective water passing assembly can be pushed outwards to open the biological channel. When the small aquatic animals go out of the aquatic habitat protection device, the first protective water passing assembly covers the biological channel again under the action of its own weight and the impact of river water. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the main structure of the present invention; Figure 3 for Figure 2 Sectional view along AA; Figure 4 This is a bottom-view structural diagram of the present invention; Figure 5 for Figure 4 A cross-sectional view along BB.

[0022] In the diagram: 1-Main structure, 11-Aquatic plant cultivation box, 12-Biological channel, 121-Annular step, 13-First protective water passage component, 14-Stacked connection hole group, 141-Pipe connection hole, 142-Column connection hole, 2-Stacked connection mechanism, 21-Finding plate, 211-Groove, 22-Fixing column, 23-Connecting pipe, 3-First resting platform, 31-Water baffle, 33-Insertion hole, 4-Small aquatic animal hiding area, 41-Second protective water passage component, 42-Second resting platform. Detailed Implementation

[0023] The technical solution of the present invention is further described below, but the scope of protection is not limited to what is described.

[0024] like Figures 1 to 5 As shown, the aquatic animal habitat protection device of the present invention includes a main structure 1, which is an ellipsoidal shell structure. A biological channel 12 is formed at one end of the main structure 1's long axis, and the biological channel 12 communicates with the internal space of the main structure 1. A stacking connection mechanism 2 protrudes from one end of the main structure 1's short axis, and a stacking connection hole group 14 is formed at the other end of the short axis. When multiple aquatic animal habitat protection devices need to be stacked, the stacking connection mechanism 2 of the upper aquatic animal habitat protection device is inserted into the stacking connection hole group 14 of the lower aquatic animal habitat protection device, thus achieving the insertion connection between the upper and lower layers of aquatic animal habitat protection devices. This process can be repeated to quickly complete the stacking of all aquatic animal habitat protection devices. The stacking operation is simple, time-saving, and convenient.

[0025] Aquatic animal habitat protection devices can provide habitats for aquatic animals, serving as places for them to avoid predation, hatch fertilized eggs, and grow their young. They can also provide living spaces for benthic animals and other aquatic animals in conditions where the existing aquatic animal habitat system is incomplete.

[0026] The first rest platform 3 is provided with a plurality of water baffles 31, and the water baffles 31 are arranged perpendicularly to the biological channel 12. The first rest platform 3 is a water animal habitat platform. The plurality of water baffles 31 are arranged on the first rest platform 3 to reduce the flow rate of water flowing into the main body structure 1 through the blocking effect of the water baffles 31, so as to avoid that the water flow rate is too fast to cause great disturbance to the water animals in the main body structure 1, and is beneficial to the habitat and spawning of the water animals.

[0027] The stacking connection mechanism 2 comprises a leveling plate 21 and a connecting pipe 23. One side of the leveling plate 21 is connected with the main body structure 1, and the other side is provided with a plurality of fixing columns 22, and the end of the fixing column 22 away from the main body structure 1 is conical. The side of the leveling plate 21 away from the main body structure 1 is provided with a groove 211, and the shape and size of the groove 211 are matched with the shape and size of the outer wall of the end of the main body structure 1 away from the stacking connection mechanism 2 in the short axis direction. The central axis of the connecting pipe 23 is collinear with the short axis of the main body structure 1. One end of the connecting pipe 23 penetrates the leveling plate 21, the side wall of the main body structure 1 and the first rest platform 3, and the other end of the connecting pipe 23 is located in the middle of the fixing column 22. The end of the fixing column 22 away from the main body structure 1 is conical, which is convenient for inserting the fixing column 22 into the bottom of the riverbed or passing through the column connection hole 142 and being inserted into the insertion hole 33. The side of the leveling plate 21 away from the main body structure 1 is provided with a groove 211, and the shape and size of the groove 211 are matched with the shape and size of the outer wall of the end of the main body structure 1 away from the stacking connection mechanism 2 in the short axis direction. When the upper water animal habitat protection device is stacked on the lower water animal habitat protection device, the surface of the groove 211 on the upper water animal habitat protection device can be matched with the top of the outer wall of the main body structure 1 of the lower water animal habitat protection device, which is beneficial to improve the stability of the stacked upper and lower water animal habitat protection devices. The connecting pipe 23 is fixedly connected with the leveling plate 21, the side wall of the main body structure 1 and the first rest platform 3, and is in communication with the inside of the main body structure 1.

[0028] The stacking connection hole group 14 comprises a pipe connection hole 141 in communication with the inside of the main body structure 1 and a plurality of column connection holes 142. The pipe connection hole 141 is coaxially arranged with the connecting pipe 23. The number of the column connection holes 142 is consistent with the number of the fixing columns 22, and the column connection holes 142 are coaxially arranged with the fixing columns 22 one by one. The first rest platform 3 is provided with an insertion hole 33 at a position corresponding to the column connection hole 142. The connecting pipe 23 is in small gap cooperation with the pipe connection hole 141, and the fixing column 22 is in small gap cooperation with the column connection hole 142 and the insertion hole 33.

[0029] The second protection water passing assembly 41 is arranged perpendicularly to the biological channel 12, and the second protection water passing assembly 41 divides the internal space of the main body structure 1 into two parts, wherein the space on the side of the second protection water passing assembly 41 away from the biological channel 12 is the small aquatic animal avoiding area 4, and the second resting platform 42 is arranged in the small aquatic animal avoiding area 4. The small aquatic animals can swim into the small aquatic animal avoiding area 4 to rest conveniently.

[0030] A plurality of habitat grooves with different sizes are arranged on the first resting platform 3 and the second resting platform 42, and the fish egg adhesion matrix is arranged on the first resting platform 3 and the second resting platform 42. The fish egg adhesion matrix is gravel, shell or wood. The plurality of habitat grooves with different sizes arranged on the first resting platform 3 and the second resting platform 42 facilitate the small aquatic animals to carry out spawning activities. The fish egg adhesion matrix arranged on the first resting platform 3 and the second resting platform 42 helps to improve the spawning effect of the small aquatic animals that spawn adhesive eggs. The fish egg adhesion matrix can also be other matrixes suitable for aquatic animal egg adhesion in addition to gravel, shell and wood.

[0031] The water inlet of the biological channel 12 is provided with an annular step 121, and the water inlet of the biological channel 12 is provided with the first protection water passing assembly 13. The first protection water passing assembly 13 is in the shape of a spherical cap, and the position of the first protection water passing assembly 13 away from the stacking connection mechanism 2 is hingedly connected to the main body structure 1. Figure 5 As shown in the figure, the annular step 121 limits the first protection water passing assembly 13 in the long axis direction of the main body structure 1. The first protection water passing assembly 13 is in the shape of a spherical cap, and can combine with the main body structure 1 to form a complete streamlined ellipsoidal structure.

[0032] The first protection water passing assembly 13 and the second protection water passing assembly 41 are protection nets or perforated plate parts. When the first protection water passing assembly 13 or the second protection water passing assembly 41 is a protection net, the aquatic animal habitat protection device is used to protect small aquatic animals. The protection net is made of nylon material with high strength and good durability. The mesh size of the protection net is selected according to the size of the aquatic animals that need to be protected in the river section where the aquatic animal habitat protection device is installed. When small aquatic animals are chased by large fish, they can pass through the protection net into the aquatic animal habitat protection device to escape from the fish, thereby achieving the purpose of increasing the number of small aquatic animals.

[0033] Because the wire of the protective net is usually thin, the fish is easily entangled by the wire and cannot get rid of the entanglement in the process of pursuit, at this time most of the fish entangled will die, after the fish dies, the nearby environment will be polluted by bacteria, fungi and the like, and as the entrance of the water animal habitat protection device, the pollution may break the protective ecological group built. Therefore, in actual use, only consider the protective net as protection of small aquatic animals.

[0034] When the first protective water passing assembly 13 or the second protective water passing assembly 41 is a perforated plate, based on the characteristics of large hole spacing of the perforated plate, the risk of injury or even death of the fish due to being caught by the protective net when passing through the protective net in the process of pursuit can be greatly reduced. The perforated plate is made of concrete, steel sheet or wood plate and the like.

[0035] The outer wall of the main structure 1 is provided with a water plant culture box 11 at the position of the short axis of the two ends.

[0036] A use method of the aquatic animal habitat protection device, comprising the following steps: Step one, put the lowermost aquatic animal habitat protection device into the river, insert the fixed column 22 in the aquatic animal habitat protection device into the riverbed bottom, and select whether to insert the lower end of the connecting pipe 23 into the riverbed according to the needs. By inserting the fixed column 22 into the riverbed bottom, the lowermost aquatic animal habitat protection device is stably installed. Whether to insert the lower end of the connecting pipe 23 into the riverbed should be selected according to the situation of the aquatic animal habitat protection device installation river section, if the lower end of the connecting pipe 23 is not inserted into the riverbed, that is, the lower end of the connecting pipe 23 is suspended, then the aquatic animals in the river bottom can easily enter the lowermost aquatic animal habitat protection device through the connecting pipe 23; if the lower end of the connecting pipe 23 is inserted into the riverbed, the connecting pipe 23 has the same effect as the fixed column 22, which can improve the installation stability of the lowermost aquatic animal habitat protection device.

[0037] Step two, the second to last layer of aquatic habitat protection device is stacked on the bottom layer of aquatic habitat protection device, the connecting pipe 23 in the second to last layer of aquatic habitat protection device is inserted into the pipe connecting hole 141 on the bottom layer of aquatic habitat protection device, and the fixing column 22 in the second to last layer of aquatic habitat protection device is inserted into the column connecting hole 142 and the insertion hole 33 on the bottom layer of aquatic habitat protection device. The connecting pipe 23 plays a role in connecting the upper and lower aquatic habitat protection devices and connecting the main body structure 1 in the two protection devices. At the same time, the fixing column 22 is not only inserted into the column connecting hole 142, but also further inserted into the insertion hole 33, and the fixing column 22 is matched with the column connecting hole 142 and the insertion hole 33 in a small gap, which not only ensures the reliable connection of the upper and lower aquatic habitat protection devices, but also improves the convenience of stacking operation of the upper and lower aquatic habitat protection devices.

[0038] Step three, referring to step two, the remaining aquatic habitat protection devices are stacked and installed layer by layer from bottom to top, at this time, the biological channels 12 in all aquatic habitat protection devices are arranged along the flow direction of the river and towards the upstream of the river. The main body structure 1 in the aquatic habitat protection device adopts an ellipsoidal structure with a streamlined shape, which can disperse most of the water flow impact force to the surrounding, so that the long axis of the main body structure 1 is arranged along the water flow direction, further reducing the impact of water flow on the aquatic habitat protection device and improving the installation stability of the device in water.

[0039] In order to prevent large aquatic animals from entering the aquatic habitat protection device, while ensuring that small aquatic animals in the device can go out after growing up, the first protection water passing assembly 13 is limited in the long axis direction of the main body structure 1 by the annular step 121, and the top of the first protection water passing assembly 13 is hingedly connected with the main body structure 1. After the aquatic habitat protection device is stacked and installed in water, the biological channels 12 are arranged along the flow direction of the river and towards the upstream of the river, so that the first protection water passing assembly 13 is abutted on the annular step 121 under the action of self-weight and river water impact, and covers the biological channels 12, to prevent large aquatic animals from entering the aquatic habitat protection device, while small aquatic animals can enter the aquatic habitat protection device through the holes in the first protection water passing assembly 13. When small aquatic animals in the aquatic habitat protection device grow up and need to go out, the first protection water passing assembly 13 can be pushed outwards to open the biological channels 12. After the small aquatic animals go out of the aquatic habitat protection device, the first protection water passing assembly 13 covers the biological channels 12 again under the action of self-weight and river water impact.

[0040] Step four, planting the water grasses in the water grass culture box 11 of the aquatic habitat protection device. The water grasses planted in the water grass culture box 11 can provide suitable habitats for aquatic animals in the aquatic habitat protection device, and can attract small shrimps, shellfishes, snails, benthic animals, plankton, etc., so as to form a small ecological chain inside and outside the aquatic habitat protection device.

Claims

1. An aquatic animal habitat conservation device, characterized by: The utility model provides a kind of stacked biological passageway, including main body structure (1), the main body structure (1) is ellipsoidal shell structure, biological passageway (12) is communicated with the interior space of main body structure (1) on the end of its long axis at main body structure (1) and is opened, and the end of its short axis at main body structure (1) is projected and is provided with stacking connection mechanism (2), and is opened at the other end of its short axis and is provided with stacking connection hole group (14).

2. The aquatic animal habitat protection device of claim 1, wherein: First rest platform (3) is provided with a plurality of water baffle (31) on the position close to stacking connection mechanism (2) in the main body structure (1), and water baffle (31) is arranged perpendicularly with biological passageway (12).

3. The aquatic animal habitat protection device of claim 2, wherein: Stacking connection mechanism (2) includes leveling plate (21) and connecting pipe (23), one side of leveling plate (21) is connected with main body structure (1), the other side is provided with not less than three fixed column (22), and the end of fixed column (22) away from main body structure (1) is conical, the side of leveling plate (21) away from main body structure (1) is provided with recess (211), and the shape and size of recess (211) are adapted to the shape and size of the outer wall of the end of main body structure (1) away from stacking connection mechanism (2) in short axis direction, the central axis of connecting pipe (23) is collinear with the short axis of main body structure (1), one end of connecting pipe (23) penetrates leveling plate (21), the side wall of main body structure (1) and first rest platform (3), and the other end face of connecting pipe (23) is located in the middle of fixed column (22).

4. The aquatic animal habitat protection device of claim 3, wherein: Stacking connection hole group (14) includes pipe connection hole (141) and a plurality of column connection holes (142) communicated with the interior of main body structure (1), pipe connection hole (141) is coaxially arranged with connecting pipe (23), the number of column connection holes (142) is consistent with the number of fixed column (22), and column connection holes (142) are coaxially arranged one by one with fixed column (22); First rest platform (3) is provided with insertion hole (33) on the position corresponding to column connection hole (142).

5. The aquatic animal habitat protection device of claim 2, wherein: Second protection water passing assembly (41) is arranged perpendicularly with biological passageway (12) in the main body structure (1) at the end of its long axis direction away from biological passageway (12), and second protection water passing assembly (41) divides the interior space of main body structure (1) into two parts, wherein the space on the side of second protection water passing assembly (41) away from biological passageway (12) is small aquatic animal avoiding area (4), and second rest platform (42) is provided in small aquatic animal avoiding area (4).

6. The aquatic animal habitat protection device of claim 1, wherein: A plurality of habitat grooves of different sizes are provided in first rest platform (3) and second rest platform (42), and fish egg adhesion matrix is placed in first rest platform (3) and second rest platform (42). The fish egg adhesion matrix is egg gravel, shell or wood.

7. The aquatic animal habitat protection device of claim 5, wherein: The water inlet of the biological channel (12) is provided with an annular step (121), and the water inlet of the biological channel (12) is provided with a first protective water passing assembly (13), the first protective water passing assembly (13) is in the shape of a spherical cap, and the first protective water passing assembly (13) is hingedly connected to the main body structure (1) away from the stacking connection mechanism (2).

8. The aquatic animal habitat protection device of claim 7, wherein: The first protective water passing assembly (13) and the second protective water passing assembly (41) are protective nets or perforated plate pieces.

9. The aquatic animal habitat protection device of claim 7, wherein: The outer wall of the main body structure (1) is provided with a water plant culture box (11) at each end of the short axis.

10. A method of using an aquatic animal habitat conservation device, the method comprising: The method comprises the following steps: Step one, place the lowest aquatic habitat protection device into the river, insert the fixed column (22) in the aquatic habitat protection device into the riverbed, and according to the needs, select whether to insert the lower end of the connecting pipe (23) into the riverbed; Step two, stack the second lowest aquatic habitat protection device on the lowest aquatic habitat protection device, insert the connecting pipe (23) in the second lowest aquatic habitat protection device into the pipe connection hole (141) in the lowest aquatic habitat protection device, and insert the fixed column (22) in the second lowest aquatic habitat protection device into the column connection hole (142) and the insertion hole (33) in the lowest aquatic habitat protection device; Step three, refer to step two, and complete the stacking and installation of the remaining aquatic habitat protection devices from bottom to top, at this time, the biological channels (12) in all aquatic habitat protection devices are arranged along the flow direction of the river and face the upstream of the river; Step four, plant the water plants that need to be cultured in the water plant culture boxes (11) of all aquatic habitat protection devices.

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