A floating island freshwater prawn culture system

Abstract

The application provides a floating island freshwater prawn breeding system beneficial to landscape design, which comprises a floating island unit, a freshwater prawn breeding unit arranged at the lower part of the floating island unit, and a landscape planting unit arranged at the upper part of the floating island unit, wherein landscape plants are planted in the landscape planting unit, and a biomass layer is contained in the landscape planting unit; the flowering season of the landscape plants is selected flexibly; and the floating island freshwater prawn breeding system beneficial to landscape design is arranged in a water body close to breeding tail water, so that the breeding tail water purification is facilitated. The application takes into account the freshwater prawn breeding, landscape plant planting and breeding tail water treatment, and the added value of the floating island breeding is improved through combination with a micro fish tank, so that the application has good ecological benefits and popularization value.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of aquaculture water purification, in particular to a floating island freshwater prawn breeding system beneficial to landscape design. BACKGROUND

[0002] The freshwater prawn is omnivorous, and has two feeding peaks in a year, i.e., April to May and August to October. The freshwater prawn is best fed with granular feed, and the proportion of animal feed is preferably more than 30%. The freshwater prawn likes to forage along the edge of the pond at night. The traditional freshwater prawn breeding adopts a freshwater prawn pond mode. The freshwater prawn pond is built in a place with sufficient water source, fresh water quality, no pollution, and rich water grass. The water grass area accounts for 20-30% of the pond area. The pond area is 2-10 mu, preferably rectangular. The water depth is 1.2-1.5 m, and the silt is not more than 10 cm. The pond is preferably provided with a shallow beach. Fresh lime is used to clean the pond, and the pond is implemented with fertilization. The traditional breeding mode is relatively mature, and the breeding effect is difficult to improve.

[0003] Ecological breeding refers to planning, designing, organizing, adjusting and managing aquatic breeding according to the principles of ecology and ecological economics, applying system engineering methods, and according to the characteristics of the breeding site. Through the method of ecological breeding, the ecological environment quality can be maintained and improved, the ecological balance can be maintained, and the coordinated and sustainable development of poultry and livestock breeding can be promoted. In order to improve the ecological and economic benefits of freshwater prawn breeding, the ecological breeding method of freshwater prawn needs to be explored. SUMMARY

[0004] In order to overcome the deficiencies in the prior art, the present application provides a floating island freshwater prawn breeding system beneficial to landscape design.

[0005] In order to achieve the above-mentioned purpose, the floating island freshwater prawn breeding system beneficial to landscape design comprises a floating island unit, a freshwater prawn breeding unit arranged at the lower part of the floating island unit, and a landscape planting unit arranged at the upper part of the floating island unit. Landscape plants are planted in the landscape planting unit. The flowering season of the landscape plants is selected flexibly according to the plants. The floating island freshwater prawn breeding system beneficial to landscape design is arranged in a water body close to breeding tail water, so as to facilitate breeding tail water purification.

[0006] The freshwater prawn breeding unit is composed of an upper opening net cage. The aperture of the netting of the net cage on the side close to the breeding tail water is larger than that of the netting on the opposite side, so as to allow the particles in the breeding wastewater to enter the space inside the freshwater prawn breeding unit.

[0007] The landscape planting unit is in the form of a flowerpot, and is divided into an upper part, a middle part and a lower part, which are movably connected from top to bottom, the middle part is provided with a receiving bottom with water-permeable mesh holes, the receiving bottom is provided with holes larger than the water-permeable mesh holes, the holes are connected with a first pipeline in the direction extending to the lower part, the sidewall of the first pipeline is provided with holes, wherein the middle part is used for containing planting soil, and the lower part is used for containing a biomass layer.

[0008] Preferably, the movable connection includes one or more of clamping, screwing or adsorbing.

[0009] Preferably, the upper part and / or the middle part can be movably connected with a small ornamental fish tank.

[0010] Preferably, the biomass layer is obtained by carbonizing water plants.

[0011] Preferably, the planting soil is obtained by drying and baking conventional aquaculture pond mud.

[0012] Preferably, the first pipeline penetrates the landscape planting unit.

[0013] Preferably, the landscape plants include one or more of chrysanthemums and lotus flowers.

[0014] The present application has the following beneficial effects:

[0015] The present application provides a floating island freshwater prawn breeding system for landscape design, which is arranged in water close to breeding tail water, facilitating breeding tail water purification. The present application takes into account freshwater prawn breeding, landscape plant planting and breeding tail water treatment, and improves the added value of floating island breeding by combining with a small fish tank, having good ecological benefits and promotion value. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole schematic view of the floating island freshwater prawn breeding system for landscape design.

[0017] Figure 2 It is a top view of the floating island freshwater prawn breeding system for landscape design.

[0018] Figure 3 It is a structure schematic view of the landscape planting unit of the floating island freshwater prawn breeding system for landscape design.

[0019] Figure 4 It is a microstate view of the biomass layer of Vallisneria after treatment under a 200-micron electron microscope.

[0020] Figure 5 It is a mirror surface support structure schematic view of the floating island freshwater prawn breeding system for landscape design. DETAILED DESCRIPTION

[0021] For better illustrating the purposes, technical solutions and advantages of the present application, the present application will be further described in combination with specific embodiments. Embodiment 1

[0022] The embodiment provides a floating island freshwater prawn breeding system beneficial to landscape design, which comprises a floating island unit 100, a freshwater prawn breeding unit 200 arranged at the lower part of the floating island unit 100, and a landscape planting unit 300 arranged at the upper part of the floating island unit 100. Landscape plants are planted in the landscape planting unit 300, and the flowering seasons of the plants are selected flexibly. Freshwater prawns are bred in the freshwater prawn breeding unit 200, and the roots of the landscape plants can be hung down into the freshwater prawn breeding unit 200 to provide a place for the freshwater prawns to attach and hide. The floating island freshwater prawn breeding system beneficial to landscape design is arranged in a water body close to breeding tail water, and is convenient for purifying breeding tail water.

[0023] Specifically, the floating island unit 100 comprises a floating frame floating on the water surface, the floating frame is spliced by a plurality of base plates, the landscape planting unit 300 is arranged in the floating frame, and the freshwater prawn breeding unit 200 is hung at the lower part of the floating island unit 100 by being connected with the base plates and is immersed in the water body. The floating frame is kept floating by a hollow structure.

[0024] Further, the freshwater prawn breeding unit 200 is composed of upper opening net cages, the mesh size of the net clothes of the net cages on the side close to the breeding tail water is greater than that of the net clothes on the opposite side, and the organic particles in the breeding wastewater are allowed to enter the space inside the freshwater prawn breeding unit 200. The natural flow of the water body causes the water body in the freshwater prawn breeding unit 200 to be naturally replaced, and the water body is purified in the freshwater prawn breeding unit 200. Freshwater prawns are bred in the freshwater prawn breeding unit 200.

[0025] Further, the landscape planting unit 300 is in the shape of a flowerpot and is divided into an upper part 301, a middle part 302 and a lower part 303, and the three parts are movably connected from top to bottom, such as threaded connection, and are in a separable structure. The middle part 302 is a receiving bottom 302-1 with water permeable mesh holes, the receiving bottom 302-1 is provided with holes 302-2 larger than the water permeable mesh holes, the holes 302-2 are connected with a first pipeline 302-3 along the direction extending to the lower part 303, and the side wall of the first pipeline 302-3 is provided with holes. The middle part 302 is used for containing planting soil, and the lower part 303 is used for containing a biomass layer. The holes in the side wall of the first pipeline 302-3 ensure that the plant roots are in contact with the water body and the biomass layer. Since the roots of the landscape plants are long and can grow very long downward, in order to avoid the plant roots growing and accumulating in the middle part 302 or the lower part 303 and affecting the extension, the roots are sent to the water body in the freshwater prawn breeding unit 200 through the first pipeline 302-3.

[0026] Preferably, the movable connection includes one or more of the following: snap-fit, spiral connection, or suction connection. A sealing ring is also provided at the connection point. The upper part 301 and / or the middle part 302 can be movably connected to the small ornamental fish tank 400 to form an independent miniature landscape, which can be separated, dispersed, or sold as a high-value-added product. The small ornamental fish tank 400 can be used to raise shrimp or can be used to raise other ornamental fish.

[0027] Landscape plants include one or more of chrysanthemums and lotuses. Chrysanthemums are preferred because their root systems can provide a good attachment site for shrimp. Example 2

[0028] This embodiment provides a floating island shrimp farming system that is beneficial for landscape design. Unlike the embodiments described above, a light source 500 is installed outside the floating island unit 100. The light source 500 provides supplemental lighting to the landscape plants, regulating their growth patterns and promoting the growth of phytoplankton in the water. Preferably, the light source 500 is positioned above the landscape planting unit 300 via a support rod. The energy for the light source 500 comes from a solar panel 501, which is positioned on the opposite side of the light source 500, creating a symmetrical relationship that helps maintain balance. Example 3

[0029] The planting soil for the landscape plants is spread evenly in the middle (302) or lower (303). This soil is obtained by turning and drying the bottom mud of conventional aquaculture ponds. Biomass carbon material, obtained from the carbonization of harvested aquatic plants, is laid on top of the planting soil. This biomass carbon material is as follows: Figure 4 As shown, the porous structure can be used to adsorb harmful substances such as particulate matter and heavy metals in the aquaculture wastewater, maintaining water quality within a 200-cubic-meter shrimp farming unit. Simultaneously, it releases minerals such as potassium, calcium, and magnesium into the water, promoting the growth of landscape plants. Furthermore, this biochar material originates from water and has strong biocompatibility. When used for water purification, it will promote the growth of invertebrates after a period of time. The dominant invertebrate group is rotifers, followed by crustaceans and zooplankton, which are excellent animal feed for shrimp.

[0030] The use of biomass layers introduces a large number of zooplankton. These zooplankton feed on phytoplankton in the water, leading to a tendency for them to congregate at the surface or upper part of the system. Therefore, guiding the zooplankton to migrate into the water of culture unit 200 can, on the one hand, maintain the system's ecosystem and prevent problems such as water stagnation and blockage caused by biological attachment and proliferation; on the other hand, the zooplankton can provide food for the shrimp, increasing their natural food source and promoting their growth and nutrition.

[0031] In order to realize the purpose of guiding the zooplankton to migrate downwards, the solar panel 501 is connected with the battery, the light source 500 uses electricity through the battery, and a waterproof light source is further arranged below the lower part 303, and the waterproof light source is electrically connected with the solar panel 501 or the battery through a waterproof wire. Since the marsh shrimp likes to feed at night, when in use, the waterproof light source is regularly turned on at night, so that the probability of the marsh shrimp feeding on the zooplankton can be improved. The brightness of the waterproof light source should not be too high, and a little light is enough. Preferably, a microporous oxygenation pipeline is arranged in the marsh shrimp unit 200, the microporous oxygenation pipeline is arranged in the region close to the lower part 303 of the landscape planting unit 300, the oxygen content of the region is improved, and the migration of the zooplankton downwards is promoted. Embodiment 4

[0032] Unlike the setting of the waterproof light source to directly attract the zooplankton from below, the application also sets a mirror 502 below the light source 500 and close to the lower part 303, the mirror 502 guides part of the light emitted by the light source 500 into the water body below the lower part 303, so as to facilitate the zooplankton to move away from the lower part 303 and move downwards in the water body, so as to be fed by the marsh shrimp. Preferably, the mirror 502 forms an angle of 20°-70° with the water surface, and the mirror is supported by a support rod 503 fixedly connected with the floating island unit 100.

[0033] Further, a spring 504 and a movable connecting block 505 are arranged at the connection between the support rod 503 and the mirror 502, both ends of the spring 504 are connected with one end of the support rod 503 and the mirror 502 respectively. The movable connecting block 505 is arranged in the internal space of the spring 504, so as to reduce the bending angle of the spring 504 and play a stabilizing and limiting role. The arrangement of the spring 504 keeps the mirror 502 forming an active angle of 20°-70° with the horizontal plane, when the water surface fluctuates, the spring 504 adjusts the angle of the mirror 502 with the horizontal plane, the movable connecting block 505 is a hollow structure, so as to avoid the mirror 502 sinking into the water and reducing the effect. The movable connecting block 505 is not connected with the spring 504 and the mirror 502, so as to avoid the displacement of the mirror 502.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application and not to limit the protection scope of the application. Although the application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the application.

Claims

1. A system for breeding of freshwater prawn in a floating island for landscape design, characterized in that: The floating island Macrobrachium Nipponense culture system beneficial to landscape design comprises a floating island unit (100), a Macrobrachium Nipponense culture unit (200) arranged at the lower part of the floating island unit (100), and a landscape planting unit (300) arranged at the upper part of the floating island unit (100), wherein landscape plants are planted in the landscape planting unit (300), and the landscape plants are selected flexibly according to the flowering seasons of the plants; the floating island Macrobrachium Nipponense culture system beneficial to landscape design is arranged in a water body close to culture tail water, so as to facilitate culture tail water purification. The Macrobrachium Nipponense culture unit (200) is composed of an upper opening net cage, and the aperture of the net clothes of the net cage on the side close to the culture tail water is larger than the aperture of the net clothes of the net cage on the opposite side, so that particles in the culture wastewater can enter the space inside the Macrobrachium Nipponense culture unit (200); The landscape planting unit (300) is in the shape of a flowerpot and is divided into an upper part (301), a middle part (302) and a lower part (303), which are movably connected from top to bottom, the middle part (302) is provided with a water-permeable mesh bottom (302-1), the water-permeable mesh bottom (302-1) is provided with a hole (302-2) larger than the water-permeable mesh, the hole (302-2) is connected with a first pipeline (302-3) along the direction extending to the lower part (303), the first pipeline (302-3) is provided with a hole in the side wall, wherein the middle part (302) is used for containing planting soil, and the lower part (303) is used for containing a biomass layer; the biomass layer is obtained by carbonizing treatment of aquatic plants. The light source (500) is arranged outside the floating island unit (100) and is arranged at a position higher than the landscape planting unit (300) through a support rod. A mirror (502) is arranged below the light source (500) and close to the lower part (303) of the landscape planting unit (300). The mirror (502) guides part of the light emitted by the light source (500) to the water below the lower part (303) of the landscape planting unit (300), so as to guide the zooplankton to move away from the lower part (303) of the landscape planting unit (300) to the water below, so as to be eaten by the freshwater shrimps. The mirror (502) forms an angle of 20°-70° with the horizontal plane. The mirror (502) is supported through a support rod (503) fixedly connected to the floating island unit (100). A spring (504) and a movable connecting block (505) are arranged at the connection between the support rod (503) and the mirror (502). The two ends of the spring (504) are connected to one end of the support rod (503) and the mirror (502) respectively. The movable connecting block (505) is arranged in the internal space of the spring (504), so as to reduce the bending angle of the spring (504) and play a stabilizing and limiting role. The spring (504) is arranged to keep the mirror (502) at an angle of 20°-70° with the horizontal plane. When the water surface fluctuates, the spring (504) adjusts the angle of the mirror (502) with the horizontal plane. The movable connecting block (505) is of a hollow structure, so as to avoid the mirror (502) from sinking into the water and reducing the effect. The movable connecting block (505) is not connected to the spring (504) and the mirror (502), so as to avoid excessive displacement of the mirror (502).

2. The system for breeding of Macrobrachium nipponense for landscape design according to claim 1, characterized in that: The movable connection includes one or more of clamping, screwing or adsorbing.

3. The system for breeding of Macrobrachium nipponense for landscape design according to claim 1, characterized in that: The upper part (301) and / or the middle part (302) of the landscape planting unit (300) are movably connected to the small ornamental fish tank (400).

4. The system for breeding of Macrobrachium nipponense for landscape design according to claim 1, characterized in that: The planting soil is obtained by drying the conventional aquaculture pond mud.

5. The system for breeding of Macrobrachium nipponense for landscape design according to claim 1, characterized in that: The first pipeline (302-3) penetrates the landscape planting unit (300).

6. The system for breeding of Macrobrachium nipponense for landscape design according to claim 1, characterized in that: The landscape plants include one or more of chrysanthemum and lotus. The landscape planting unit (300) is movably connected to the small ornamental fish tank (400).

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