CN109601444B - Improve bionical attitude pond of laying viscidity ovum fish breed - Google Patents
Improve bionical attitude pond of laying viscidity ovum fish breed Download PDFInfo
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 72
- 102000002322 Egg Proteins Human genes 0.000 title abstract description 8
- 108010000912 Egg Proteins Proteins 0.000 title abstract description 8
- 210000004681 ovum Anatomy 0.000 title abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 158
- 235000013601 eggs Nutrition 0.000 claims abstract description 35
- 238000011144 upstream manufacturing Methods 0.000 claims description 52
- 239000011664 nicotinic acid Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 5
- 230000001070 adhesive effect Effects 0.000 claims description 5
- 238000009395 breeding Methods 0.000 claims description 4
- 230000001488 breeding effect Effects 0.000 claims description 4
- 230000001174 ascending effect Effects 0.000 claims description 2
- 230000003592 biomimetic effect Effects 0.000 claims 4
- 230000002708 enhancing effect Effects 0.000 claims 4
- 230000004083 survival effect Effects 0.000 abstract description 13
- 230000008859 change Effects 0.000 abstract description 7
- 230000006872 improvement Effects 0.000 abstract description 2
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- 230000002349 favourable effect Effects 0.000 description 9
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- 238000007906 compression Methods 0.000 description 6
- 230000001939 inductive effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 244000005700 microbiome Species 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 241000269799 Perca fluviatilis Species 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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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
- A01K61/10—Culture of aquatic animals of fish
- A01K61/17—Hatching, e.g. incubators
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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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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/60—Fishing; Aquaculture; Aquafarming
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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)
- Farming Of Fish And Shellfish (AREA)
Abstract
The utility model provides an improve imitative ecological pond of laying viscidity ovum fish reproduction, it includes the spawning pond, upper reaches passageway and low reaches passageway, through the both ends setting in the spawning pond of arc structure rather than the upper reaches passageway and the low reaches passageway of UNICOM, upper reaches passageway and low reaches passageway are located river course one side and river course and spawning pond UNICOM, intake naturally through the upper reaches passageway, low reaches passageway natural drainage forms the torrent and induces fish to get into the spawning pond in the low reaches passageway and lay eggs, water level in the spawning pond is controlled through the weir of falling. The invention overcomes the problems that the daily runoff change of the raw water power station changes the aquatic environment, so that the fishes producing the viscous and sinkable eggs lay eggs bare and have low survival rate, and has the characteristics of simple structure, no exposure of the viscous and sinkable eggs produced by the fishes in the spawning pond to the beach due to the water level change, improvement of the survival rate of the fish eggs and contribution to protecting the aquatic environment of a river channel.
Description
Technical Field
The invention belongs to the technical field of riverway environment, and relates to a bionic pond for improving the breeding of fishes laying adhesive eggs.
Background
Various hydropower stations built in riverways with abundant hydropower resources drive local economy and development and provide a large amount of electric power energy on the one hand, and on the other hand, certain influence is brought to the ecological environment of local rivers, so that the original aquatic ecological environment of the dam-built rivers, particularly the fish habitat, is changed. With increasing emphasis on the ecological environment impact of hydropower development, many protection strategies are being taken to restore and improve the habitat of fish.
At present, the protection of river fish habitat in hydropower development areas is more concentrated in the restoration and construction of habitat conditions of spawning sites, the quality of the habitat of the spawning sites directly influences the stability and sustainable development of fish populations, the stress of human hydropower development activities on the habitat is mainly eliminated and reduced for the habitat restoration of the spawning sites, the habitat conditions before development are restored to the greatest extent, for example, the discharge of ecological flow is increased, the flow and the water depth of a dehydrated river reach can be increased at the downstream of a gate dam of a hydropower station, and the stress on the fishes is relieved. And to the species and the characteristic of spawning of different fishes of spawning ground habitat mainly, the region that has landform units such as deep pool or shoal is built to pertinence, through satisfying the demand that fish to habitat factor such as spawning ground depth of water and bottom matter, realizes the natural reproduction of fish in the river course.
The river reach mainly implemented by the existing fish spawning site habitat protection technology is mostly a river reach with stable water amount, the water level cannot rise steeply and fall, and even if the water amount is a water-reducing river reach with reduced water amount in a natural state, the water depth and the water amount are stable in the daytime and even in the week. However, the water level day amplitude under the dam of the power station is large due to the radial-flow daily regulation of the hydropower station, the water level can be greatly changed in a short time, great influence can be caused on spawning of fishes under the condition, and the influence caused by steep rise and fall of the water level cannot be overcome under the conditions of increasing the discharge ecological flow, building proper bottom materials, water depth and the like. For example: the fishes producing the sticky eggs lay eggs on pebbles or gravels more than shoals on the bank, or the eggs are buried in river sand, but the downstream water level of the hydropower station regulated by the radial-flow type daily change greatly, so that the eggs are exposed out of the water when the water level is reduced, the survival rate of the eggs is greatly reduced, and the survival and the propagation of the fishes in the river reach are seriously influenced.
Disclosure of Invention
The invention aims to solve the technical problem of providing a bionic pond for improving the breeding of fishes producing viscous eggs, which has a simple structure, wherein an upstream channel and a downstream channel which are communicated with the spawning pond are arranged at two ends of the spawning pond with an arc-shaped structure at one side, the upstream channel and the downstream channel are communicated with a river channel for natural water inlet and drainage, the downstream channel forms a rapid current to induce the fishes to enter the spawning pond for spawning, a water drop weir controls the water level in the spawning pond, and the viscous and sinking eggs produced by the fishes in the spawning pond cannot be exposed to the beach due to the change of the water level, so that the survival rate of the fishes is improved, and the aquatic.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: a bionic pond for improving the reproduction of fishes laying adhesive eggs comprises a spawning pond, an upstream channel and a downstream channel; the upstream channel and the downstream channel are respectively positioned at one side of the spawning pond and communicated with the spawning pond, the upstream channel naturally feeds water, and the downstream channel naturally drains water; the upstream channel is gradually enlarged along the water inlet, and the downstream channel is gradually reduced along the water outlet; the lowest water level in the spawning pond is controlled by a water dropping weir of a downstream channel.
The spawning pond comprises a protection dike and a retaining wall which are enclosed, the retaining wall is of an outwards protruding arc-shaped structure, and the water inlet direction of the upstream channel faces towards the arc-shaped retaining wall.
The upper reaches passageway is including being located a plurality of gravel grooves of inlet channel, inlet channel and spawning pond UNICOM, and the water inlet is the loudspeaker form, is ascending slope form along the direction of intaking at the bottom of the canal.
Downstream passageway includes drop weir and a plurality of gravel groove in the drainage channel, drainage channel and spawning pool UNICOM, and the outlet is the toper form, is decurrent slope form along the drainage direction at the bottom of the canal, and drop weir is close to one side in spawning pool.
The gravel groove is a triangular strip-shaped body protruding upwards, and a groove is arranged on the upward surface of the gravel groove.
The height of the upper side face of the weir dam of the water falling weir is higher than the bottom of the spawning pond.
A bionic pond for improving the reproduction of fishes laying adhesive eggs comprises a spawning pond, an upstream channel and a downstream channel; the upstream channel and the downstream channel are respectively positioned at one side of the spawning pond and communicated with the spawning pond, the upstream channel naturally feeds water, and the downstream channel naturally drains water; the upstream channel is gradually enlarged along the water inlet, and the downstream channel is gradually reduced along the water outlet; the lowest water level in the spawning pond is controlled by a water dropping weir of a downstream channel. Simple structure, set up the upper reaches passageway and the low reaches passageway rather than UNICOM through the both ends in the spawning pond of arc structure, upper reaches passageway and low reaches passageway are located river course one side and river course and spawning pond UNICOM, intake naturally through the upper reaches passageway, low reaches passageway natural drainage, downstream passageway forms the torrent and induces fish to get into the spawning pond and spawn in the spawning pond, water level in the spawning pond is controlled through the hydraulic weir, the clay-sinking ovum of fish output in the spawning pond can not be because of water level change shoal, the survival rate of roe has been improved, be favorable to protecting river course aquatic environment.
In a preferred scheme, the spawning pond comprises a protection embankment and a retaining wall which is enclosed, the retaining wall is of an arc-shaped structure protruding outwards, and the water inlet direction of the upstream channel faces the arc-shaped retaining wall. The structure is simple, when the fish spawning pond is built, the protection dike is close to a river channel, the protection dike is positioned at the inner side of the spawning pond to form a straight line, the retaining wall at the side corresponding to the protection dike is of an arc parabolic structure protruding outwards, the top of the bulge is close to one side of the upstream channel, water flows and erodes towards the inner wall of the arc retaining wall when entering the spawning pond from the upstream channel, the flow speed is higher than that of one side of the protection dike, and the fish can perch and spawn in an area with relatively stable flow speed at one; the bottom of the spawning pond is sequentially paved with a large gravel layer, a small gravel layer and a river sand layer upwards, and aquatic plants, emergent aquatic plants or hygrophytes which are staggered at intervals are planted on the river sand layer to form an ecological imitation, which is favorable for spawning of fishes.
In a preferred scheme, the upstream channel comprises a plurality of gravel grooves positioned in the water inlet channel, the water inlet channel is communicated with the spawning pond, the water inlet is trumpet-shaped, and the bottom of the channel is inclined upwards along the water inlet direction. The structure is simple, the upstream channel is communicated with the river channel, the water body enters the spawning pond from the upstream channel, when the water body enters, the water body flows from the upstream channel with the smaller cross section and the horn-shaped structure to the end with the larger cross section, compression is formed at the water body inlet, the initial flow rate of the water body injected into the spawning pond is increased, the oxygen content of the water body in the spawning pond is increased, the water body in the spawning pond is prevented from not flowing, and spawning is not; the inclined canal bottom forms a drop, which is beneficial to accelerating the initial flow velocity when the water body enters the water inlet canal; the water drop effect formed by the torrent is beneficial to inducing the fish after spawning to enter the main river channel along the upstream channel to continue to finish other life.
In preferred scheme, downstream passageway includes drop weir and a plurality of gravel groove in the drainage channel, and the drainage channel is the toper form with spawning pond UNICOM, the outlet, and the canal bottom is decurrent slope form along the drainage direction, and drop weir is close to one side in spawning pond. The structure is simple, when the device is built, the upper side surface of the downstream channel is lower than the upper side surface of the upstream channel to form a height drop, so that the device is beneficial to forming overflow in the downstream channel after water continuously enters the spawning pond, and the overflowing water enters the drainage channel after overflowing from the water drop weir; the drainage channel with the conical structure forms compression at the drainage port at the end with the smaller cross section, so that the flow velocity of the drained water body is accelerated, the flow velocity of the drained water body is greater than that of the main river channel, and the backflow of the white-spotted fishes from the downstream of the main river channel along the downstream channel is favorably induced to enter the spawning pond; the canal bottom which is downward inclined along the drainage direction is beneficial to accelerating the flow velocity of water body overflowing from the spawning pond, so that the flow velocity of the water body is greater than that of a main river channel, and the fish luring is facilitated.
In a preferred scheme, the gravel groove is an upward-convex triangular strip, and a groove is arranged on the upward surface of the gravel groove. Simple structure, the banding gravel groove stable in structure of triangle-shaped, intensity is high, lays by gravel and river sand bed in the recess to plant aquatic plant, aquatic plant grows here, forms high-quality microorganism, is favorable to inducing that fish forages, gets into the spawning pond.
In a preferred scheme, the height of the upper side surface of a weir dam of the water dropping weir is higher than the bottom of the spawning pond. The structure is simple, the water dropping weir is of a groove-shaped structure, the upper side surface of the weir dam is higher than the bottom of the spawning pond, the water level of the main river channel changes, water can still be stored in the spawning pond when the spawning pond is not replenished with water, the water level is kept at 30-50 cm, the development of spawned eggs of fishes is not influenced, and the fish eggs are not exposed; the runoff of the hydropower station adjusting water is adjusted intermittently, and after the current drainage rate is increased, the water body of the main river enters the spawning pond again to enable the water body to recover flowing, so that the fish egg survival rate is improved.
The utility model provides an improve imitative ecological pond of laying viscidity ovum fish reproduction, it includes the spawning pond, upper reaches passageway and low reaches passageway, through the both ends setting in the spawning pond of arc structure rather than the upper reaches passageway and the low reaches passageway of UNICOM, upper reaches passageway and low reaches passageway are located river course one side and river course and spawning pond UNICOM, intake naturally through the upper reaches passageway, low reaches passageway natural drainage forms the torrent and induces fish to get into the spawning pond in the low reaches passageway and lay eggs, water level in the spawning pond is controlled through the weir of falling. The invention overcomes the problems that the daily runoff change of the raw water power station changes the aquatic environment, so that the fishes producing the viscous and sinkable eggs lay eggs bare and have low survival rate, and has the characteristics of simple structure, no exposure of the viscous and sinkable eggs produced by the fishes in the spawning pond to the beach due to the water level change, improvement of the survival rate of the fish eggs and contribution to protecting the aquatic environment of a river channel.
Drawings
The invention is further illustrated by the following examples in conjunction with the accompanying drawings:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic longitudinal sectional structure of fig. 1.
Fig. 3 is a schematic cross-sectional structure of fig. 1.
Fig. 4 is a use state diagram of the present invention.
In the figure: spawning pond 1, levee 11, retaining wall 12, upstream channel 2, inlet channel 21, downstream channel 3, drainage channel 31, drop weir 32, gravel groove 4.
Detailed Description
As shown in fig. 1-4, a bionic pond for improving the breeding of fishes laying adhesive eggs comprises a spawning pond 1, an upstream channel 2 and a downstream channel 3; the upstream channel 2 and the downstream channel 3 are respectively positioned at one side of the spawning pond 1 and communicated with the spawning pond, the upstream channel 2 naturally feeds water, and the downstream channel 3 naturally drains water; the upstream channel 2 is gradually enlarged along the water inlet, and the downstream channel 3 is gradually reduced along the water outlet; the minimum water level in the spawning pond 1 is controlled by a drop weir 32 of the downstream channel 3. Simple structure, set up upstream channel 2 and low reaches passageway 3 rather than UNICOM through the both ends at spawning pond 1 of arc structure, upstream channel 2 and low reaches passageway 3 are located river course one side and river course and spawning pond 1 UNICOM, intake naturally through upstream channel 2, 3 natural drainages of low reaches passageway, downstream channel 3 forms the torrent and induces fish to get into spawning pond 1 and lay eggs in, water level in spawning pond 1 is controlled through falling water weir 32, the clay-sinking nature ovum of fish output in spawning pond 1 can not be because of water level variation shoal, the survival rate of roe has been improved, be favorable to protecting river course aquatic environment.
In a preferred embodiment, the spawning pond 1 comprises a dam 11 and a retaining wall 12, the retaining wall 12 is an arc-shaped structure protruding outwards, and the water inlet direction of the upstream channel 2 faces the arc-shaped retaining wall 12. The structure is simple, during construction, the protective dike 11 is close to a river channel, the inner side of the spawning pond 1 forms a straight line, the retaining wall 12 on the side corresponding to the protective dike 11 is of an arc parabolic structure protruding outwards, the top of the bulge is close to one side of the upstream channel 2, when water enters the spawning pond 1 from the upstream channel 2, the water flows and washes the inner wall of the arc retaining wall 12, the flow speed is higher than that of one side of the protective dike 11, and fishes can inhabit and spawn in an area with relatively stable flow speed close to one side of the protective dike 11 after entering the spawning pond 1; the bottom of the spawning pond 1 is sequentially paved with a large gravel layer, a small gravel layer and a river sand layer, and aquatic plants, emergent aquatic plants or hygrophytes which are staggered at intervals are planted on the river sand layer to form an ecological imitation, which is favorable for spawning of fishes.
In the preferred scheme, the upstream channel 2 comprises a plurality of gravel grooves 4 positioned in a water inlet channel 21, the water inlet channel 21 is communicated with the spawning pond 1, a water inlet is trumpet-shaped, and the bottom of the channel is inclined upwards along the water inlet direction. The structure is simple, the upstream channel 2 is communicated with a river channel, a water body enters the spawning pond 1 from the upstream channel 2, when the water body enters, the water body flows from the upstream channel 2 with the smaller cross section and the horn-shaped structure to the end with the larger cross section, compression is formed at the water body inlet, the initial flow rate of the water body injected into the spawning pond 1 is increased, the oxygen content of the water body in the spawning pond 1 is increased, the phenomenon that the water body in the spawning pond 1 does not flow and is not beneficial to spawning is avoided; the inclined canal bottom forms a fall, which is beneficial to accelerating the initial flow velocity when the water body enters the water inlet canal 21; the water drop effect formed by the torrent is beneficial to inducing the fish after spawning to enter the main river channel along the upstream channel 2 to continue to finish other life.
In a preferred scheme, the downstream channel 3 comprises a water dropping weir 32 and a plurality of gravel grooves 4 in a water drainage channel 31, the water drainage channel 31 is communicated with the spawning pond 1, a water drainage opening is in a conical shape, the bottom of the channel is in a downward inclined shape along a water drainage direction, and the water dropping weir 32 is close to one side of the spawning pond 1. The structure is simple, during construction, the upper side surface of the downstream channel 3 is lower than the upper side surface of the upstream channel 2 to form a height drop, so that water can continuously enter the spawning pond 1 and then form overflow in the downstream channel 3, and the overflowing water can overflow from the water falling weir 32 and then enter the drainage channel 31; the drainage channel 31 with the conical structure forms compression at the drainage port at the end with the smaller cross section, so that the flow velocity of the drained water body is accelerated, the flow velocity of the drained water body is greater than that of the main river channel, and the backflow of the white-spotted fishes from the downstream of the main river channel along the downstream channel 3 is favorably induced to enter the spawning pond 1; the canal bottom which is downward inclined along the drainage direction is beneficial to accelerating the flow velocity of water overflowing from the spawning pond 1, so that the flow velocity of the water at the position is greater than that of a main river channel, and the fish luring is facilitated.
In a preferred scheme, the gravel groove 4 is an upward-convex triangular strip, and a groove is arranged on the upward surface. Simple structure, the banding gravel groove 4 stable in structure of triangle-shaped, intensity is high, lays by gravel and river sand bed in the recess to plant aquatic plant, aquatic plant grows here, forms high-quality microorganism, is favorable to inducing fish to seek food, gets into spawning pond 1.
In a preferred scheme, the upper side surface of the weir dam of the water dropping weir 32 is higher than the bottom of the spawning pond 1. The structure is simple, the water dropping weir 32 is of a groove-shaped structure, the upper side surface of the weir dam is higher than the bottom of the spawning pond 1, the water level of the main river channel changes, when water is not supplemented to the spawning pond 1, water can still be stored in the spawning pond 1, the water level is kept at a depth of 30-50 cm, the development of spawned eggs of fishes is not influenced, and the spawns are not exposed; the runoff of the hydropower station adjusting water is adjusted intermittently, after the current discharge amount is increased, the water body of the main river enters the spawning pond 1 again to enable the water body to recover flowing, and the fish egg survival rate is improved.
As above improve imitative ecological pond of production viscidity ovum fish reproduction, during installation use, set up the upstream channel 2 and the low reaches passageway 3 rather than UNICOM at the both ends of the spawning pond 1 of arc structure, upstream channel 2 and low reaches passageway 3 are located river course one side and river course and spawning pond 1 UNICOM, upstream channel 2 is intake naturally, low reaches passageway 3 natural drainage, downstream passageway 3 forms the torrent and induces fish to get into spawning in spawning pond 1, the water level in the spawning pond 1 is controlled to drop weir 32, the viscidity and subsidence ovum of fish output in spawning pond 1 can not be because of water level variation shoal, the survival rate of roe has been improved, be favorable to protecting the river aquatic environment.
When the fish spawning pond is built, the protective dike 11 is close to a river channel, the inner side of the spawning pond 1 is in a linear shape, the retaining wall 12 on the side corresponding to the protective dike 11 is in an outwards protruding arc parabolic structure, the top of the bulge is close to one side of the upstream channel 2, when water enters the spawning pond 1 from the upstream channel 2, the water flows and washes the inner wall of the arc retaining wall 12, the flow speed is higher than that of one side of the protective dike 11, and after the water enters the spawning pond 1, the fish can perch and spawn in an area with relatively stable flow speed close to; the bottom of the spawning pond 1 is sequentially paved with a large gravel layer, a small gravel layer and a river sand layer, and aquatic plants, emergent aquatic plants or hygrophytes which are staggered at intervals are planted on the river sand layer to form an ecological imitation, which is favorable for spawning of fishes.
The upstream channel 2 is communicated with a river channel, a water body enters the spawning pond 1 from the upstream channel 2, when the water body enters, the water body flows from the upstream channel 2 with a horn-shaped structure at the end with a smaller cross section to the end with a larger cross section, compression is formed at the water body inlet, the initial flow rate of the water body injected into the spawning pond 1 is increased, the oxygen content of the water body in the spawning pond 1 is increased, the phenomenon that the water body in the spawning pond 1 does not flow and is not beneficial to spawning is; the inclined canal bottom forms a fall, which is beneficial to accelerating the initial flow velocity when the water body enters the water inlet canal 21; the water drop effect formed by the torrent is beneficial to inducing the fish after spawning to enter the main river channel along the upstream channel 2 to continue to finish other life.
During construction, the upper side surface of the downstream channel 3 is lower than the upper side surface of the upstream channel 2 to form a height drop, so that water can continuously enter the spawning pond 1 and then overflow is formed in the downstream channel 3, and the overflowing water can overflow from the water falling weir 32 and then enter the drainage channel 31; the drainage channel 31 with the conical structure forms compression at the drainage port at the end with the smaller cross section, so that the flow velocity of the drained water body is accelerated, the flow velocity of the drained water body is greater than that of the main river channel, and the backflow of the white-spotted fishes from the downstream of the main river channel along the downstream channel 3 is favorably induced to enter the spawning pond 1; the canal bottom which is downward inclined along the drainage direction is beneficial to accelerating the flow velocity of water overflowing from the spawning pond 1, so that the flow velocity of the water at the position is greater than that of a main river channel, and the fish luring is facilitated.
The triangular strip-shaped gravel grooves 4 are stable in structure and high in strength, gravel and river sand layers are distributed in the grooves, aquatic plants are planted in the grooves, the aquatic plants grow at the positions, high-quality microorganisms are formed, and the aquatic plants are favorable for inducing fishes to find food and enter the spawning pond 1.
The water dropping weir 32 is of a groove-shaped structure, the upper side surface of the weir dam is higher than the bottom of the spawning pond 1, water can be stored in the spawning pond 1 when the water level of the main river channel changes and water is not supplemented to the spawning pond 1, the water level is kept at 30-50 cm, the development of spawned eggs of fishes is not influenced, and the fish eggs are not exposed; the runoff of the hydropower station adjusting water is adjusted intermittently, after the current discharge amount is increased, the water body of the main river enters the spawning pond 1 again to enable the water body to recover flowing, and the fish egg survival rate is improved.
The above-described embodiments are merely preferred embodiments of the present invention, and should not be construed as limiting the present invention, and features in the embodiments and examples in the present application may be arbitrarily combined with each other without conflict. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (5)
1. A bionic pond for improving the breeding of fishes laying adhesive eggs is characterized in that: the device comprises a spawning pond (1), an upstream channel (2) and a downstream channel (3); the upstream channel (2) and the downstream channel (3) are respectively positioned at one side of the spawning pond (1) and communicated with the spawning pond, the upstream channel (2) naturally feeds water, and the downstream channel (3) naturally drains water; the upstream channel (2) is gradually enlarged along the water inlet, and the downstream channel (3) is gradually reduced along the water outlet; the lowest water level in the spawning pond (1) is controlled by a water falling weir (32) of a downstream channel (3); upstream channel (2) are including being located a plurality of gravel grooves (4) in inlet channel (21), inlet channel (21) and spawning pond (1) UNICOM, and the water inlet is the loudspeaker form, is ascending slope form along the direction of intaking at the bottom of the canal.
2. The biomimetic pond for enhancing the reproduction of fish species producing sticky eggs as recited in claim 1, wherein: spawning pond (1) is enclosed to close to form including by embankment (11) and barricade (12), barricade (12) are outside outstanding arc structure, and the direction of water inflow of upper reaches passageway (2) is towards curved barricade (12).
3. The biomimetic pond for enhancing the reproduction of fish species producing sticky eggs as recited in claim 1, wherein: downstream passageway (3) fall weir (32) and a plurality of gravel groove (4) including in drainage canal (31), drainage canal (31) and spawning pond (1) UNICOM, the outlet is the toper form, and the canal bottom is decurrent slope form along the drainage direction, falls one side that weir (32) are close to spawning pond (1).
4. The biomimetic pond for enhancing the reproduction of fish species producing sticky eggs as recited in claim 1, wherein: the gravel groove (4) is an upward convex triangular strip, and a groove is arranged on the upward surface.
5. The biomimetic pond for enhancing the reproduction of fish species producing sticky eggs as recited in claim 1, wherein: the height of the upper side surface of the weir dam of the water falling weir (32) is higher than the bottom of the spawning pond (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811535890.0A CN109601444B (en) | 2018-12-14 | 2018-12-14 | Improve bionical attitude pond of laying viscidity ovum fish breed |
Applications Claiming Priority (1)
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| CN111395279B (en) * | 2020-04-20 | 2022-03-29 | 中国电建集团贵阳勘测设计研究院有限公司 | Ecological scheduling system suitable for backtracking of fishes laying adhesive eggs |
| CN113638378A (en) * | 2021-08-23 | 2021-11-12 | 广州市城市规划勘测设计研究院 | Continuous flow ecological bypass type nature-imitated fishway |
| CN115005133B (en) * | 2022-07-22 | 2023-06-23 | 中国科学院南京地理与湖泊研究所 | Construction method of spawning site for natural lake campstream reverse water spawning fish |
| CN115349474B (en) * | 2022-08-01 | 2024-05-28 | 水利部中国科学院水工程生态研究所 | Migration spawning propagation culture nest for stickness spawning fishes and dam passing method for young fishes |
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