Composite recycling floating type artificial fish nest

Abstract

The utility model discloses a compound type resourceful floating artificial fish nest which comprises a floating body, a floating frame, a traction cable, a fixing anchor and a fish nest platform, the upper end of the fish nest platform is connected with the floating body through the traction cable, the lower end of the fish nest platform is connected to the fixing anchor arranged at the water bottom, and the two ends of the floating body are fixed by the floating frame and jointly provide buoyancy for the fish nest platform; the device is simple in structure, solves the problem that the survival rate of submerged plants is low due to the influence of water depth and underwater illumination conditions when the submerged plants are cultivated, provides a near-natural oviposition, rest and danger avoiding place for fishes, and is beneficial to quickly constructing an aquatic animal and plant ecological chain with a perfect system and complete functions.

Description

Technical Field

[0001] The utility model belongs to the water ecological restoration technology, and particularly relates to a composite resource floating artificial fish nest, which is applicable to the restoration of aquatic plants and fish resources. Background Art

[0002] The core of the water ecological restoration technology lies in constructing a complete, functional and long-term maintainable aquatic animal and plant system. The commonly used technical means include the artificial cultivation of aquatic plants and the cultivation of fry.

[0003] The key point of the artificial cultivation of aquatic plants is to restore the submerged aquatic plants. The roots and leaves of the submerged aquatic plants can absorb a large amount of pollutants in the water body and release oxygen into the water body through underwater photosynthesis, providing living conditions for other beneficial aquatic organisms and improving the underwater habitat.

[0004] When cultivating fry, artificial fish nests are usually set in the areas with slow flow velocity in the river and lake water bodies to increase the spawning sites for fish, thereby increasing the number and population diversity of fish. The formation of a biological chain by plants, fish and other organisms in the area will be conducive to creating a healthy and balanced water environment system.

[0005] In the prior art, the artificial cultivation of submerged aquatic plants is often limited by the water depth and underwater light conditions and is difficult to recover on a large scale, so it is impossible to provide a relatively good living environment for aquatic animals. The artificial fish nests are often made of concrete, plastic and other materials that are easy to produce and process and are thrown into the water, which is difficult to meet the living habits of different fish and is relatively independent of the aquatic plant system, making it difficult to construct a perfect ecological chain. Summary of the Invention

[0006] The purpose of the utility model is to solve the shortcomings existing in the prior art, and propose a composite resource floating artificial fish nest, which solves the problem of low survival rate of submerged aquatic plants during cultivation affected by the water depth and underwater light conditions, provides a near-natural spawning, resting and refuge place for fish, and is conducive to quickly constructing a complete and functional aquatic animal and plant ecological chain.

[0007] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0008] A composite resource floating artificial fish nest includes a floating body, a floating frame, a pulling cable, a fixed anchor and a fish nest platform. The upper end of the fish nest platform is connected to the floating body through the pulling cable, and the lower end is connected to the fixed anchor placed at the bottom of the water. The two ends of the floating body are fixed by the floating frame, jointly providing buoyancy for the fish nest platform.

[0009] The further limited scheme of the utility model:

[0010] Preferably, the floating body is formed by connecting multiple cubic polyester fiber modules, and each cubic polyester fiber module is connected by a buckle.

[0011] Preferably, the floating frame is a hollow polyethylene pipe with a pipe diameter of not less than 100 mm, and can be hot-melt connected to both ends of the floating body. The towing cable is made of nylon rope, with a diameter of ∅12 mm to ∅20 mm.

[0012] Preferably, a planting groove, a spawning groove and a feeding box are arranged on the fish nest platform.

[0013] Preferably, the planting groove is made of polypropylene (PP), and is in a cylindrical hollow shape with an upper diameter larger than the lower diameter. The upper diameter specification is 23 mm to 100 mm, and the lower diameter specification is 20 mm to 70 mm. From bottom to top, it is internally provided with planting soil, biomass filler, sand and gravel, and gravel, and submerged plants are cultivated in the middle.

[0014] Preferably, the biomass filler is straw biochar, which is processed from organic waste, wood chips, straw and plant rhizomes, and is a porous solid particle material rich in carbon. The specific surface area is 1000 - 1300 m 2 / g, the particle size is 5 - 12 mm, it has a rich pore structure and contains more oxygen-containing active groups on the surface, which can enhance fertility, fix carbon and adsorb organic pollutants in water.

[0015] Preferably, the spawning groove is made of high-density polyethylene, and is in an inverted prism hollow shape with a trapezoidal cross-section. The upper base width is 80 mm to 200 mm, the lower base width is 60 mm to 150 mm, and it is internally provided with new ceramsite, dry branches and benthic organisms such as snails and mussels.

[0016] Preferably, the new ceramsite is processed from construction waste, and the bulk density is 0.5 g / cm 3 ~0.7 g / cm 3 . It has a light weight, a large specific surface area, rich pores, strong water holding capacity and low powdering rate, and is easy for fish eggs to attach.

[0017] Preferably, the feeding box is provided with a bait feeding tube. The feeding tube is made of transparent PVC, with the top 5 - 10 cm above the water surface, and the bottom is connected to the feeding box. The height of the bait in the feeding tube can be observed to judge and add bait in a timely manner. A bait discharge port is arranged on one side of the feeding box, and the height of the discharge port is 1 / 5 of the height of the feeding box. The bottom of the discharge port is flat-connected to the top of one side of the spawning groove, and the bait can slowly slide into the spawning groove from the discharge port.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] (1) The utility model can fix the fish nest platform at an appropriate underwater depth by adjusting the size of the floating body and the length of the towing cable, which is beneficial to the survival of submerged plants under suitable underwater light conditions for growth, and can be placed in any area of river and lake waters that needs water ecological restoration without being restricted by water depth.

[0020] (2) The biomass filler and the new type of ceramsite adopted by the utility model both belong to resource recycling materials. While providing nutrients for the growth of submerged plants, the biomass filler also has the function of adsorbing organic pollutants in the water body. The new type of ceramsite is light in weight, large in specific surface area, and rich in pores. The overall weight of the ceramsite placed in the spawning tank is relatively light, which can effectively save the number of cubic polyester fiber modules used in the floating body, and is easy for fish eggs to attach, which can effectively reduce the probability of fish eggs being peeled off due to the impact of water flow.

[0021] (3) By setting the submerged plant planting tank and the fish spawning tank to be organically combined, and using the submerged plant planting tank to surround the spawning tank, the utility model can attract and provide a near-natural spawning, resting and refuge place for fish. The new type of ceramsite, dry branches and benthic organisms such as snails and mussels placed in the spawning tank can also provide specific fish egg attachment substrates according to the breeding characteristics of different fish. Brief Description of the Drawings

[0022] Figure 1 is the schematic plan view of the utility model.

[0023] Figure 2 is the schematic three-dimensional structure view of the feeding box in the utility model.

[0024] Figure 3 is the sectional view of the planting tank in the utility model.

[0025] Figure 4 is the schematic three-dimensional structure view of the spawning tank in the utility model

[0026] Figure 5 is the sectional view of the spawning tank in the utility model.

[0027] In the figure, 1 - floating body, 2 - floating frame, 3 - towing cable, 4 - fixed anchor, 5 - feeding box, 51 - bait discharge port, 52 - bait delivery tube, 6 - planting tank, 61 - planting soil, 62 - biomass filler, 63 - sand and gravel, 64 - gravel, 65 - submerged plant, 7 - spawning tank, 71 - new type of ceramsite, 72 - dry branches, 73 - benthic organisms such as snails and mussels, 8 - fish nest platform. Detailed Embodiments Embodiment

[0028] Please refer to Figures 1-5, this embodiment provides a composite resource floating artificial fish nest, including a floating body 1, a floating frame 2, a pulling cable 3, a fixed anchor 4, and a fish nest platform 8. The upper end of the fish nest platform 8 is connected to the floating body 1 through the pulling cable 3, and the lower end is connected to the fixed anchor 4 placed at the bottom of the water. Both ends of the floating body 1 are fixed by the floating frame 2, jointly providing buoyancy for the fish nest platform.

[0029] In this embodiment, the average load-bearing capacity of the floating body 1 is not less than 50 kg / m 2 , and it is formed by snap-connecting multiple cubic polyester fiber modules. The number of cubic polyester fiber modules can be increased or decreased according to the weight of the fish nest platform 8 and the required placement position to adjust the buoyancy of the floating body 1. And by adjusting the length of the pulling cable 3, the fish nest platform is adjusted to an appropriate height, and the fish nest platform is fixed in the designated water area through the fixed anchor 4 to prevent the fish nest platform from moving with the water flow and improve the stability of the fish nest platform. The floating body 1 is located at the water surface obliquely above the four corners of the fish nest platform 8, and its two ends are thermally fused to the floating frame 2. The four floating bodies 1 are fixed on the water surface through the floating frame 2.

[0030] In this embodiment, the fish nest platform 8 is composed of a planting groove 6, a spawning groove 7, and a feeding box 5. The planting grooves 6 and the spawning grooves 7 are arranged at intervals, and there are planting grooves 6 on both sides of each spawning groove 7. There is a bait delivery tube on the feeding box. The delivery tube is made of transparent PVC material, and the top is 5 - 10 cm above the water surface. The bottom of the delivery tube is communicated with the feeding box. The height of the bait in the delivery tube can be observed to judge and add bait in a timely manner. There is a bait outlet on one side of the feeding box. The height of the outlet is 1 / 5 of the height of the feeding box. The bottom of the outlet is flush with the top of one side of the spawning groove. When in use, artificial bait is put into the feeding box through the bait delivery tube 52 on the feeding box 5, and the bait slowly slides into the spawning groove 7 through the bait outlet 51 to attract fish to forage and spawn here.

[0031] In this embodiment, the spawning groove 7 is made of high-density polyethylene material, in the shape of an inverted prism hollow, with a trapezoidal cross-section, the upper base width is 100 mm, the lower base width is 60 mm, and it contains new ceramsite 71, dry branches 72, and benthic organisms such as snails and mussels 73. The new ceramsite 71 is processed from construction waste, with a bulk density of 0.5 g / cm 3 ~0.7 g / cm 3 , with a light mass, a large specific surface area, rich pores, strong water-holding capacity, and a low pulverization rate, which is easy for fish eggs to attach. The dry branches 72 and the benthic organisms such as snails and mussels 73 also provide a diverse spawning place for fish, and can attract different populations of fish to spawn here, thus improving the biodiversity of regional aquatic organisms.

[0032] In this embodiment, the planting trough 6 is made of polypropylene (PP) and is hollowed out. The upper diameter is larger than the lower diameter. The upper diameter is 60 mm and the lower diameter is 35 mm. From bottom to top, planting soil 61, biomass filler 62, sand and stone 63, and gravel 64 are built in. Submerged plants 65 are planted in the middle. The biomass filler 62 is straw biochar, which is processed from organic waste, sawdust, straw and plant roots. It is a porous solid granular material rich in carbon with a specific surface area of ​​1000-1300 m 2 / g, particle size 5-12mm, with rich pore structure and more oxygen-containing active groups on the surface, which can enhance fertility, fix carbon and adsorb organic pollutants in water. Submerged plants 65 are aquatic plants favored by fish such as duckweed, foxtail algae, bitter grass, and pondweed.

[0033] When used in this embodiment: when the fish nest platform is not launched into the water, the size of the float 1 and the length of the tow rope 3 are adjusted to a suitable depth suitable for fish activities and submerged plant growth according to the depth of the water body where the investigation is required, and submerged plants suitable for growing in the water area are selected and planted in the planting trough 6 to provide a near-natural living environment for fish. After assembly, the fish nest is placed in a designated location, and bait that the fish in the water area like is regularly placed into it through the bait placement tube 52 to provide sufficient food for fish spawning and hatching and growth of young fish. During the breeding season, the spawning situation in the artificial fish nest is monitored more strictly, and the fish nest layout is timely optimized and adjusted according to the monitoring results.

[0034] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A composite resource-based floating artificial fish nest, characterized in that, It includes a floating body (1), a floating frame (2), a towing cable (3), a fixed anchor (4) and a fish nest platform (8), and is characterized in that: the upper end of the fish nest platform (8) is connected to the floating body (1) through the towing cable (3), and the lower end is connected to the fixed anchor (4) placed at the bottom of the water. Both ends of the floating body (1) are fixed by the floating frame (2), which jointly provides buoyancy for the fish nest platform.

2. The composite resource floating artificial fish nest according to claim 1, characterized in that The floating body (1) is formed by connecting a plurality of cubic polyester fiber modules, and each cubic polyester fiber module is connected by a buckle.

3. The composite resource floating artificial fish nest according to claim 1, characterized in that The floating frame (2) is a hollow polyethylene pipe with a pipe diameter of not less than 100 mm, and can be heat-melted and connected to both ends of the floating body (1). The towing cable (3) is made of nylon rope.

4. The composite resource floating artificial fish nest according to claim 1, characterized in that, The fish nest platform (8) includes a planting groove (6), a spawning groove (7) and a feeding box (5). The planting grooves (6) and the spawning grooves (7) are arranged at intervals, and there are planting grooves (6) on both sides of each spawning groove (7). The bottom of the feeding box (5) is flat-connected to the top of one side of the spawning groove (7).

5. The composite resource floating artificial fish nest according to claim 4, characterized in that The planting groove (6) is made of polypropylene PP and is in a cylindrical hollow shape with an upper diameter larger than the lower diameter. The upper diameter specification is 23 mm to 100 mm, and the lower diameter specification is 20 mm to 70 mm. From bottom to top, it is internally provided with planting soil (61), biomass filler (62), sand and gravel (63), gravel (64), and submerged plants (65) are cultivated in the middle.

6. The composite resource floating artificial fish nest according to claim 4, wherein, The spawning groove (7) is made of high-density polyethylene and is in an inverted prism hollow shape with a trapezoidal cross-section. The upper bottom width is 80 mm to 200 mm, and the lower bottom width is 60 mm to 150 mm. It is internally provided with new ceramsite (71), dry tree branches (72), and benthic organisms such as snails and mussels (73).

7. The composite resource floating artificial fish nest according to claim 4, characterized in that, The feeding box (5) is provided with a bait feeding tube (52). The bait feeding tube (52) is made of transparent PVC, with the top 5 to 10 cm above the water surface and the bottom communicating with the feeding box (5). A bait discharge port (51) is arranged on one side of the feeding box (5), and the bottom of the bait discharge port is flat-connected to the top of one side of the spawning groove (7). The bait can slowly slide into the spawning groove (7) through the bait discharge port (51).

8. The composite resource-based floating artificial fish nest according to claim 6, characterized in that, The novel ceramsite (71) is processed from construction waste and has a bulk density of 0.5 g / cm 3 ~0.7 g / cm 3 .

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