CN114521522B - Multifunctional composite adhesion structure for habitat of bionic artificial fish reef - Google Patents
Multifunctional composite adhesion structure for habitat of bionic artificial fish reef Download PDFInfo
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- CN114521522B CN114521522B CN202210210950.1A CN202210210950A CN114521522B CN 114521522 B CN114521522 B CN 114521522B CN 202210210950 A CN202210210950 A CN 202210210950A CN 114521522 B CN114521522 B CN 114521522B
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 69
- 239000011664 nicotinic acid Substances 0.000 title claims abstract description 47
- 239000002131 composite material Substances 0.000 title claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 29
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 21
- 244000005700 microbiome Species 0.000 claims abstract description 15
- 239000000853 adhesive Substances 0.000 claims description 24
- 230000001070 adhesive effect Effects 0.000 claims description 24
- 239000004677 Nylon Substances 0.000 claims description 20
- 229920001778 nylon Polymers 0.000 claims description 20
- 241000196324 Embryophyta Species 0.000 claims description 18
- 210000002268 wool Anatomy 0.000 claims description 18
- 239000011159 matrix material Substances 0.000 claims description 13
- 230000003592 biomimetic effect Effects 0.000 claims description 9
- 239000000725 suspension Substances 0.000 claims description 7
- 210000004209 hair Anatomy 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims 1
- 235000013601 eggs Nutrition 0.000 abstract description 14
- 208000028804 PERCHING syndrome Diseases 0.000 abstract description 5
- 238000009395 breeding Methods 0.000 abstract description 5
- 230000001488 breeding effect Effects 0.000 abstract description 5
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- 150000001875 compounds Chemical class 0.000 abstract description 3
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/70—Artificial fishing banks or reefs
- A01K61/75—Artificial fishing banks or reefs floating
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Zoology (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Artificial Fish Reefs (AREA)
Abstract
The invention relates to the technical field of bionic artificial fish reefs, and discloses a multifunctional composite adhesion structure of a habitat of a bionic artificial fish reef, which comprises a fixed rope suspended in water, wherein the upper end of the fixed rope is connected with a floating body on the water surface, and the lower end of the fixed rope downwards extends into a river; the fixing rope is provided with a plurality of groups of external adhesion substrates for adhering roes and microorganisms, the external adhesion substrates surround the periphery of the fixing rope and are arranged in an umbrella shape, and the plurality of groups of external adhesion substrates are arranged in an extending manner along the length direction of the fixing rope; the bottom of the fixed rope is connected with a nesting container, and the nesting container is internally provided with a containing cavity for fish to inhabit, shelter and cable baits; the multifunctional compound adhesion structure of the habitat of the bionic artificial fish reef is used for creating a natural habitat for fishes, integrating the functions of fish spawning, foraging, perching and sheltering, returning to the nature, integrating natural habitat protection measures, ensuring the adhesion area of fish eggs, and having the condition of large-scale breeding.
Description
Technical Field
The invention relates to the technical field of bionic artificial fish reefs, in particular to a multifunctional composite adhesion structure of a habitat of a bionic artificial fish reef.
Background
The construction of hydroelectric engineering brings great social and economic benefits, and simultaneously, the channel blocking, reservoir inundation, artificial runoff regulation, water temperature structure change, construction, immigration arrangement and the like bring great influence on the surrounding ecological environment.
Aiming at the problems brought by the construction of hydropower engineering, the implementation of related ecological environment protection measures becomes one of the necessary projects for the construction of the hydropower engineering at present, and the measures obtain certain benefits to a certain extent; however, in the construction of hydroelectric engineering, the dam finally blocks the continuity of the original river, changes the hydrological conditions of reservoir areas and river reach under the dam, wherein the river sediment transport characteristics are changed, which causes the change of natural characteristics such as the riverbed erosion and deposition process and the river morphology, promotes the succession process of the river bank vegetation, and blocks and even blocks the natural upstream channel of fish, thereby changing the species composition, habitat distribution and corresponding ecological functions of the river ecosystem.
In hydroelectric engineering construction, river habitat fragmentation is caused by dam construction, lake habitat diversity is damaged, fish habitat loss or reduction is caused, fish spawning places are damaged, and fishery resources decline. Therefore, during the period of restoring and protecting the river habitat, it is necessary to provide fish and other aquatic organisms with suitable locations for their spawning, breeding, foraging and sheltering.
In the prior art, the bionic artificial fish nest mainly solves the technical means of the problems, and can provide a spawning site for fishes producing viscous eggs and a bait-trapping site or a habitat for the fishes. The artificial fish nest has an adhesion structure, fish eggs bred by fishes can be adhered by the adhesion structure, but the adhesion structure of the existing artificial fish nest is difficult to ensure the adhesion area of the fish eggs, and the large-scale breeding condition is not provided.
Disclosure of Invention
The invention aims to provide a multifunctional composite adhesion structure of a habitat of a bionic artificial fish reef, and aims to solve the problem that the adhesion structure of a bionic artificial fish nest does not have large-scale breeding conditions in the prior art.
The multifunctional composite adhesion structure for the habitat of the bionic artificial fish reef comprises a fixed rope suspended in water, wherein the upper end of the fixed rope is connected with a floating body on the water surface, and the lower end of the fixed rope extends downwards into a river; the fixing rope is provided with a plurality of groups of external adhesion substrates for adhering roes and microorganisms, the external adhesion substrates surround the periphery of the fixing rope and are arranged in an umbrella shape, and the plurality of groups of external adhesion substrates are arranged in an extending manner along the length direction of the fixing rope; the bottom of the fixing rope is connected with a nesting container, and the nesting container is internally provided with a containing cavity for fish inhabiting, sheltering and baiting.
Further, the external adhesion substrate comprises a plurality of bionic aquatic weeds for adhering fish eggs and microorganisms, and the plurality of bionic aquatic weeds are arranged around the periphery of the fixing rope; the upper end of bionical pasture and water is connected on fixed rope, the lower extreme of bionical pasture and water is vacant form and arranges, just the lower extreme of bionical pasture and water deviates from fixed rope and is outwards to be the arrangement of waving.
Furthermore, the bionic aquatic weed is provided with a plurality of bionic blades which are in a fluttering shape and are used for adhering fish eggs and microorganisms.
Furthermore, a plurality of micro-hole grooves are formed in the bionic blade.
Furthermore, the front and the back of the bionic blade are respectively provided with an adhesion side surface for adhering roes and microorganisms, and the two adhesion side surfaces of the bionic blade are respectively provided with a plurality of micro-hole grooves.
Further, a flexible umbrella-shaped nylon net is arranged in the external adhesion substrate, the nylon net surrounds the periphery of the fixing rope, and the nylon net penetrates through the plurality of bionic aquatic weeds; the upper end of the nylon net is connected to the fixed rope, and the lower end of the nylon net deviates from the fixed rope; the bottom of the nylon net is bent inwards and upwards to form an inner bent ring, and an inner collecting ring groove with an opening at the top is formed in the inner bent ring in a surrounding mode; the bottom of nylon wire is outwards upwards crooked, is formed with outer looper, outer looper surrounds and is formed with open-top's outer collection annular.
Further, the outer bending ring is formed on the periphery of the outer adhesion substrate, the middle part of the outer bending ring protrudes towards the outer adhesion substrate, and an annular opening is formed between the outer bending ring and the outer adhesion substrate, and the annular opening is communicated with the outer collecting ring groove; the upper part of the outer bent ring extends outwards away from the outer adhesive matrix to form a receiving ring sheet which is wound on the periphery of the outer adhesive matrix, and the receiving ring sheet is obliquely arranged upwards along the direction away from the outer adhesive matrix.
Further, the bearing ring piece is provided with a bearing surface which is arranged upwards, the bearing surface is provided with flexible fluff, and the flexible fluff is spread on the whole bearing surface; a bottom wool net is adhered to the bearing surface, and a plurality of bottom meshes are arranged in the bottom wool net; a middle wool net is arranged above the bearing surface and is positioned above the bottom wool net, and a plurality of middle meshes are arranged in the middle wool net; the flexible fluff penetrates through the middle mesh and the bottom mesh from top to bottom, the bottom of the flexible fluff is butted on the bearing surface, and the top of the flexible fluff extends to the position above the middle wool mesh.
Furthermore, an inner adhesion matrix for fish inhabitation, shelter and cable baits is arranged inside the cavity of the nesting container.
Furthermore, an open opening is formed in the top of the nesting container, and the open opening is communicated with the accommodating cavity; the bottom of the container of nesting extends downwards and has a counterweight portion, the inside of counterweight portion has an inner chamber, the lateral wall of counterweight portion is equipped with a plurality of breachs, the inner chamber passes through the breach intercommunication outside, be equipped with the suspension ball that floats from top to bottom along the inner chamber in the inner chamber, the suspension ball is in the suspended state in the inner chamber.
Compared with the prior art, the multifunctional compound adhesion structure for the habitat of the bionic artificial fish reef provided by the invention can be used for creating a natural habitat for fishes, realizing integration of fish spawning, foraging, perching and sheltering, returning to the nature and integrating natural habitat protection measures, can be used for providing a place for fish spawning by utilizing a plurality of groups of external adhesion substrates on the fixed rope, can be used for adhering fish eggs of fishes, can be used for providing a place for fish to perch, shelter and cable feed for fishes by utilizing the nesting container at the bottom of the fixed rope, ensures the adhesion area of the fish eggs, and has large-scale breeding conditions.
Drawings
FIG. 1 is a schematic front view of a multifunctional composite adhesion structure of a habitat of a biomimetic artificial fish reef provided by the present invention;
FIG. 2 is a schematic partial cut-away view of a bionic blade provided by the present invention;
FIG. 3 is a schematic front view of the combination of the flexible pile, the middle web and the bottom web provided by the present invention;
FIG. 4 is a schematic view of the structure of the nylon net provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The following detailed description of implementations of the invention refers to specific embodiments.
The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. based on the orientation or positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but it is not intended to indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limiting the present patent, and the specific meaning of the terms may be understood by those skilled in the art according to specific circumstances.
Referring to fig. 1-4, preferred embodiments of the present invention are shown.
The multifunctional composite adhesion structure for the habitat of the bionic artificial fish reef comprises a fixed rope 201 suspended in water, the upper end of the fixed rope 201 is connected with a floating body 100 on the water surface, the lower end of the fixed rope 201 extends downwards into a river and is arranged in an empty state, and the fixed rope 201 also floats under the action of the river.
A plurality of groups of external adhesion substrates 200 for adhering roes and microorganisms are arranged on the fixing rope 201, the external adhesion substrates 200 surround the periphery of the fixing rope 201 and are arranged in an umbrella shape, the adhesion area of the external adhesion substrates 200 is increased, and the plurality of groups of external adhesion substrates 200 are arranged in an extending manner along the length direction of the fixing rope 201; a nesting container 202 is connected to the bottom of the fixing rope 201, and the nesting container 202 has a cavity for fish to inhabit, shelter and cable baits.
Above-mentioned multi-functional compound adhesion structure of habitat of bionical artificial fish reef that provides, for the fish creates the imitative natural habitat, the realization makes the fish lay eggs, seek food, perch, shelter as an organic whole, return nature, incorporate natural habitat protective measures, it utilizes the outside adhesion matrix 200 of multiunit on the fixed rope 201 can provide the place for the fish lay eggs, can adhere the roe of fish, the container 202 of nesting of fixed rope 201 bottom then can provide the place of perching, shelter and cable bait for the fish, guarantee the area of roe adhesion, possess the condition that the scale was bred.
The structure of the floating body 100 on the water surface can be diversified, and it is mainly possible to float on the water surface according to actual needs.
In this embodiment, the external adhesion substrate 200 includes a plurality of bionic aquatic weeds for adhering roes and microorganisms, the plurality of bionic aquatic weeds being circumferentially arranged along the outer circumference of the fixing string 201; the upper end of bionical pasture and water is connected on fixed rope 201, and the lower extreme of bionical pasture and water is vacant form and arranges, and the lower extreme of bionical pasture and water deviates from fixed rope 201 and is the arrangement that flutters outwards. The bionic aquatic weed can completely simulate the natural environment and better adhere fish eggs and microorganisms.
The bionic aquatic weed is provided with a plurality of bionic blades 300 which are in a fluttering shape and used for adhering fish eggs and microorganisms, so that the adhering area and range of the bionic aquatic weed are greatly increased.
In this embodiment, be equipped with a plurality of micropore grooves 301 in the bionic blade 300, like this, the surface of bionic blade 300 is the concavo-convex form, can play better adhesion effect, then increase adhesion area.
The front and the back of the bionic blade 300 respectively form an adhesion side for adhering roes and microorganisms, and the two adhesion sides of the bionic blade 300 are respectively provided with a plurality of the micro-hole grooves 301. Thus, fish eggs and microorganisms that breed fish can be adhered by the adhering side of the bionic blade 300.
In this embodiment, the flexible and umbrella-shaped nylon net 500 is disposed in the external adhesive substrate 200, the nylon net 500 surrounds the periphery of the fixing rope 201, and the nylon net 500 is inserted into the plurality of bionic aquatic weeds, so that most of the bionic aquatic weeds can be limited to be in an annular umbrella shape.
The upper end of the nylon net 500 is connected to the fixed rope 201, and the lower end of the nylon net 500 deviates from the fixed rope 201; the bottom of the nylon net 500 is bent inwards and upwards to form an inner bent ring 501, and the inner bent ring 501 surrounds and forms an inner collecting ring groove with an opening at the top; the bottom of the nylon net 500 is bent outwards and upwards to form an outward bent ring 502, and the outward bent ring 502 surrounds an outer collecting ring groove with an open top.
Through setting up interior collection annular and outer collection annular, the roe on bionical pasture and because the wafting of pasture and come off the back, then can fall into including in collecting annular or collecting the annular outward, play the effect of secondary adhesion, and the annular of collection or outer collection annular can provide the place of perching, refuge and ask for the bait for fish in and.
An outer bent ring 502 is formed at the outer circumference of the outer adhesive substrate 200, the middle portion of the outer bent ring 502 protrudes toward the outer adhesive substrate 200, and an annular opening 503 is formed between the outer bent ring and the outer adhesive substrate 200, the annular opening 503 communicating with the outer collecting ring groove; the upper portion of the outer loop 502 extends outwardly away from the outer adhesive matrix 200 to form a tab 504 surrounding the outer periphery of the outer adhesive matrix 200, the tab 504 being disposed obliquely upwardly in a direction away from the outer adhesive matrix 200.
By forming the receiving ring 504, the receiving area is increased and it is facilitated for fish eggs, etc. falling on the receiving ring surface to enter the outer collecting ring groove through the ring opening 503.
In this embodiment, the receiving ring piece 504 has a receiving surface arranged upward, the receiving surface is provided with flexible piles 400, and the flexible piles 400 are distributed over the whole receiving surface; a bottom wool net 401 is adhered to the bearing surface, and a plurality of bottom meshes are arranged in the bottom wool net 401; a middle wool net 402 is arranged above the bearing surface, the middle wool net 402 is positioned above the bottom wool net 401, and a plurality of middle meshes are arranged in the middle wool net 402; the flexible fluff 400 passes through the middle mesh and the bottom mesh from top to bottom, the bottom of the flexible fluff 400 is butted on the bearing surface, and the top of the flexible fluff 400 extends to the upper part of the middle fluff mesh 402.
By arranging the flexible villi 400, the middle part of the hair net 402, the bottom part of the hair net 401 and the like, the whole receiving and changing surface simulates the natural environment, and an environment which integrates the functions of spawning, foraging, perching and sheltering of fishes is formed.
The inner device of the cavity of the nesting container is provided with an inner adhesive matrix for fish inhabitation, shelter and bait, and the nesting container 202 is arranged at the bottom of the fixing rope 201, so that under the action of gravity of the nesting container 202, the position of the fixing rope 201 can be limited, and the overlarge floating range of the fixing rope 201 is avoided.
The top of the nesting container 202 is provided with an open opening which is communicated with the containing cavity, so that fishes can conveniently enter and exit the containing cavity of the nesting container 202 through the open opening.
The bottom of the nesting container 202 extends downwards to form a counterweight part 2021, an inner cavity is formed in the counterweight part 2021, a plurality of notches 2022 are formed in the side wall of the counterweight part 2021, the inner cavity is communicated with the outside through the notches 2021, a suspension ball 2023 which floats up and down along the inner cavity is arranged in the inner cavity, and the suspension ball 2023 is in a suspension state in the inner cavity.
The inner cavity can be used as a place for fish to perch, shelter and cable baits, the weight of the bottom of the fixed rope 201 can be increased by the counterweight part 2021, the fixed rope 201 is limited to swing within a set range, secondly, in the process that the counterweight part 2021 floats up and down along with the water surface fluctuation, the floating ball 2023 in the inner cavity floats along with the water surface fluctuation, the up-and-down floating speed of the nesting container 202 can be buffered due to the change of the buoyancy of the floating ball 2023, and the whole floating of the fixed rope 201 is smooth.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (9)
1. The multifunctional composite adhesion structure of the habitat of the bionic artificial fish reef is characterized by comprising a fixed rope suspended in water, wherein the upper end of the fixed rope is connected with a floating body on the water surface, and the lower end of the fixed rope extends downwards into a river; the fixing rope is provided with a plurality of groups of external adhesion substrates for adhering roes and microorganisms, the external adhesion substrates surround the periphery of the fixing rope and are arranged in an umbrella shape, and the plurality of groups of external adhesion substrates are arranged in an extending manner along the length direction of the fixing rope; the bottom of the fixing rope is connected with a nesting container, and the nesting container is internally provided with a containing cavity for fish inhabiting, sheltering and baiting;
the outer adhesion substrate is internally provided with a flexible umbrella-shaped nylon net which surrounds the periphery of the fixed rope and is arranged in the plurality of bionic aquatic weeds in a penetrating way; the upper end of the nylon net is connected to the fixed rope, and the lower end of the nylon net deviates from the fixed rope; the bottom of the nylon net is bent inwards and upwards to form an inner bent ring, and an inner collecting ring groove with an opening at the top is formed in the inner bent ring in a surrounding mode; the bottom of nylon wire is outwards upwards crooked, is formed with outer looper, outer looper surrounds and is formed with open-top's outer collection annular.
2. The habitat multifunctional composite adhesive structure of a biomimetic artificial fish reef of claim 1, wherein the external adhesive substrate comprises a plurality of biomimetic water plants for adhering roes and microorganisms, the plurality of biomimetic water plants being circumferentially arranged along a circumference of a fixing rope; the upper end of the bionic aquatic weed is connected to the fixed rope, the lower end of the bionic aquatic weed is arranged in a vacant manner, and the lower end of the bionic aquatic weed deviates from the fixed rope and is arranged in a floating manner outwards.
3. The multi-functional composite adhesion structure of habitat of bionic artificial fish reef of claim 2, wherein said bionic aquatic plant has a plurality of bionic blades in fluttering shape for adhering roe and microorganism.
4. The multi-functional composite adhesive structure for a habitat of a biomimetic artificial fish reef of claim 3, wherein a plurality of micro-hole grooves are provided in the biomimetic blade.
5. The multi-functional composite adhesion structure of habitat of bionic artificial fish reef of claim 4, wherein the front and back of said bionic blade respectively form adhesion side for adhesion of roe and microorganism, and two adhesion sides of said bionic blade are respectively provided with a plurality of said micro-hole grooves.
6. The habitat multifunctional composite adhesive structure of a biomimetic artificial fish reef of any one of claims 1 to 5, wherein the outward bent ring is formed at an outer circumference of the external adhesive substrate, a middle portion of the outward bent ring protrudes toward the external adhesive substrate, and an annular opening is formed between the outward bent ring and the external adhesive substrate, the annular opening communicating with the outer collecting ring groove; the upper part of the outer bent ring extends outwards away from the outer adhesive matrix to form a receiving ring sheet which is wound on the periphery of the outer adhesive matrix, and the receiving ring sheet is obliquely arranged upwards along the direction away from the outer adhesive matrix.
7. The multifunctional composite adhesion structure for habitats of biomimetic artificial fish reef of claim 6, wherein the receiving ring sheet has a receiving surface arranged upwards, the receiving surface is provided with flexible down hairs, and the flexible down hairs are distributed over the whole receiving surface; a bottom wool net is adhered to the bearing surface, and a plurality of bottom meshes are arranged in the bottom wool net; a middle wool net is arranged above the bearing surface and is positioned above the bottom wool net, and a plurality of middle meshes are arranged in the middle wool net; the flexible fluff penetrates through the middle mesh and the bottom mesh from top to bottom, the bottom of the flexible fluff is butted on the bearing surface, and the top of the flexible fluff extends to the position above the middle wool mesh.
8. The multi-functional composite adhesive structure for a habitat of a biomimetic artificial fish reef of any one of claims 1 to 5, wherein the cavity interior of the nesting container has an inner adhesive matrix for fish inhabitation, shelter and baits.
9. The multifunctional composite adhesive structure for the habitat of a bionic artificial fish reef of claim 8, wherein an open opening is formed in the top of the nesting container, and the open opening is communicated with the accommodating cavity; the bottom of the container of nesting extends downwards and has a counterweight portion, the inside of counterweight portion has an inner chamber, the lateral wall of counterweight portion is equipped with a plurality of breachs, the inner chamber passes through the breach intercommunication outside, be equipped with the suspension ball that floats from top to bottom along the inner chamber in the inner chamber, the suspension ball is in the suspended state in the inner chamber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210210950.1A CN114521522B (en) | 2022-03-03 | 2022-03-03 | Multifunctional composite adhesion structure for habitat of bionic artificial fish reef |
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| CN202210210950.1A CN114521522B (en) | 2022-03-03 | 2022-03-03 | Multifunctional composite adhesion structure for habitat of bionic artificial fish reef |
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| JP2001299199A (en) * | 2000-04-27 | 2001-10-30 | Teion Shokuhin Kako Gijutsu Kenkyusho:Kk | Method for collecting roe of large fishes and roe collecting device therefor |
| CN206713797U (en) * | 2017-05-21 | 2017-12-08 | 杨书戈 | A kind of leech attachment base for being arranged at photovoltaic pedestal in waters |
| CN210299058U (en) * | 2019-04-15 | 2020-04-14 | 浙江海洋大学 | Flexible floating fish reef for fish spawning and conservation |
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