CN218831658U - Culture system based on circulating water - Google Patents

Abstract

The utility model discloses a farming systems based on circulating water, including cistern (1), water pump (6), rose tank (3), cold and warm all-in-one (4), breed groove (5), oxygen-increasing machine (11), the PVC pipe, fluorescent lamp (7), breed frame (2) including four layers, it breeds groove (5) to go up the three-layer placing, filter tank (3) are placed to the bottommost layer, it is equipped with the PVC pipe to breed frame (2) upper berth, supply every layer to breed groove (5) and breed with hydrologic cycle and oxygen-increasing machine (11) tracheal connection of aeration, cistern (1) is through PVC union coupling water pump (6), the water pump delivery port links to each other with rose tank (3) through the PVC pipe again, rose tank (3) divide into the three-section, the third section is placed the end and is inhaled the formula water pump. The utility model discloses not only carry out the aeration to water in the cistern, can carry out the aeration to all breed grooves in the farming systems simultaneously, make things convenient for system maintenance and management, the daily breed and the management of being convenient for.

Description

Culture system based on circulating water

Technical Field

The application relates to the field of aquaculture in an aquaculture laboratory, in particular to a circulating water-based aquaculture system.

Background

The crustacean has certain adaptive regulation capacity to the change of environmental factors, so that the crustacean becomes the most widely distributed species in the world, and the decapod crustacean is one of the most large number of known populations at present, nearly 15 000 types exist, and belong to more than 2700 and 180 families. The crustacean is mostly an aquatic species, and the crustacean is often subjected to changes of environmental factors such as salinity, temperature and dissolved oxygen in the life history, for the aquatic variable temperature animal, the temperature is an important non-biological factor in many aspects of regulating and controlling the growth, the physiological state, the distribution, the behavior and the like of the aquatic variable temperature animal, and meanwhile, the temperature is also a key factor of the metabolic process of the aquatic variable temperature animal, when the temperature is comprehensively considered with other biological or non-biological factors, the temperature can generate more complex physiological effects, and the influence is more common for the crustacean lacking the temperature regulating capability. The influence of temperature change on the growth and physiology of the crustacean is known, which is not only beneficial to regulating and controlling environmental factors in the breeding production process, but also has potential value for predicting the influence of future climate change on biological ecology.

Crayfish and river crab are important economic breeding objects in the crustacean aquaculture industry in China, namely Procambarus clarkii (Procambarus c l arkii i), commonly called freshwater crayfish, according to measurement and calculation, the total output value of the crayfish industry in 2021 years in China is 4221.95 million yuan, and the commensurately increases 22.43%; the river crabs are known as Chinese mitten crabs in science, commonly called as river crabs, hairy crabs and the like, in 2020, the river crab culture area of China reaches 1000 thousand mu, the yield reaches 77.59 million tons, and the output value breaks through billions yuan.

Although the shrimp and crab industries develop rapidly, some bottleneck problems which need to be solved urgently still exist to restrict the development of the culture technology of the shrimp and crab industries, the laboratory culture of the shrimp and crab is an important step of the research and development of the culture technology, and particularly, the optimization of some culture conditions such as nutrition, temperature, illumination and the like is involved. The scientific research work in the laboratory can provide theoretical support and reference for practical production, and the premise of carrying out subsequent experimental research on how to successfully culture the crayfish under the condition of simulating the environment in the laboratory. In addition, when the aquatic animal is used as an aquatic animal and the influence of prawn and crab on environmental conditions is researched, such as the temperature and illumination of environmental factors which have important influence on the growth, development and reproduction of the prawn and crab, the outdoor culture cannot control the setting of the environmental factors, and can only be carried out under the simulation condition of a laboratory, specifically, the following steps are carried out:

1. the existing laboratory culture system has simple structure and single function, and most of the existing laboratory culture systems only have the function of circulating water culture;

2. the existing system has a single breeding mode, most of the existing system is a group breeding system, and the individual breeding of shrimps and crabs can not be well carried out and the flexible conversion between the group breeding and the individual breeding can not be realized;

3. the regulation range of the temperature regulation device is small without the temperature regulation device, and the high-temperature or low-temperature stress test of shrimps and crabs cannot be effectively carried out;

4. the aeration system is rough, and each culture tank cannot be effectively aerated;

5. an independent lighting system is not arranged in the system, so that the management operation is inconvenient in the culture process.

Disclosure of Invention

The utility model aims at solving the problems of the existing laboratory crayfish breeding system, provides a breeding system based on circulating water, carries out a series of integration on the breeding system for breeding shrimps and crabs in the laboratory, the breeding water quality, the temperature regulation and control and the like, fills the technical blank of breeding shrimps and crabs in the temperature regulation and control in the laboratory, is also favorable for improving the survival and growth of breeding objects, and is convenient for the development of laboratory experiments of shrimps and crabs.

The utility model discloses a realize through following technical scheme:

a culture system based on circulating water comprises a reservoir (1), a water pump (6), filter tanks (3), a cooling and heating all-in-one machine (4), culture tanks (5), an aerator (11), PVC pipes, detachable baffles, fluorescent lamps (7) and culture racks (2), wherein the culture racks (2) comprise four layers, the culture tanks (5) are placed in the three layers on the upper layer, the filter tanks (3) are placed in the bottommost layer, PVC pipes are laid on the culture racks (2) and are used for the culture water circulation of each layer of culture tank (5) and the aeration gas pipes of the aerator (11), the reservoir (1) is connected with the water pump (6) through the PVC pipes, the water outlet of the water pump (6) is connected with the filter tanks (3) through the PVC pipes, the filter tanks (3) are divided into three sections, the bottom suction water pump (6) is placed in the third section, the water outlet of the water pump (6) is connected with the water inlet of the cooling and heating all-in-one machine (4) through the PVC pipes, the cooling and heating water outlet is connected to the upper parts of each culture tank (5) through the PVC pipes, the culture water inlet of the culture water is discharged into each culture tank (5) through the circulating water inlet of the circulating water inlet (9), and the circulating water inlet of each culture tank (5) can be independently controlled through the spherical circulating water inlet; breed groove (5) and have two delivery ports, one is drain (10), through spherical valve control switch, another is circulating water delivery port (8), circulating water delivery port (8) link to each other with the PVC pipe and assemble to filter-tank (3) first part, aerator (11) are connected air stone (12) through the trachea and are cistern (1) aeration, simultaneously also can be for each breed groove (5) oxygenation through connecting air stone (12) that lead to each breed groove (5) on breeding frame (2), every breed groove (5) is equipped with independent fluorescent lamp (7), it breeds groove (5) bottom to be the upper strata on breeding frame (2) to be located to breed groove (5) top, can dismantle the baffle is located and breeds groove (5), be used for separating the shrimp, the crab of breeding.

As a preferred embodiment, the length, width and height of the frame of the farming rack (2): 1.65m x 0.6m x 2.5m, the shelf is divided into 4 layers, the upper three layers are provided with culture tanks (5), each layer is 0.6m high, the bottom layer is provided with a filter tank (3), and the layer is 0.7m high.

As a preferred embodiment, the dimensions of the culture tank (5) are length, width and height: 160cm 60cm 20cm, two water outlets are arranged at the bottom of the culture tank (5), one water outlet is a circulating water outlet and is connected with a PVC pipe which is 10cm higher than the bottom of the culture tank (5), the other water outlet is a sewage outlet (10) and is used for cleaning the culture system, and the sewage outlet (10) is connected with a water stop valve to control a switch.

As a preferred embodiment, the PVC pipe can be provided with a bayonet to adjust the water level of circulating water,

as a preferred embodiment, the dimensions of the filter tank (3) are length, width and height: 160cm 60cm 50cm, the filter tank (3) is divided into three parts, one part and two parts are used for placing filter materials, the third part is not used for placing filter materials, a water pump (6) is placed, the aquaculture water enters the third part after being filtered by the first part and the second part, then the aquaculture water is connected with a PVC pipe through a water outlet of the water pump (6) and is pumped into the respective culture tank (3) of the three layers, the water level in the culture tank (3) reaches the height of the water outlet and then flows out through the water outlet to be converged to the first part of the filter tank after flowing out of the PVC pipe, and the aquaculture water enters the third part after being filtered by the first part and the second part of the filter tank (3), so that the circulation is completed.

As a preferred embodiment, said reservoir (1) is of cylindrical shape, with dimensions of diameter x height: 1.2m is 1m, and water storage capacity is 1100L, and cistern (1) is the canvas pond of removable assecmbly, has solved the unable problem through laboratory door width of large capacity water storage bucket, when the circulating water system use in owing to inhale incomplete bait and excrement and urine and lead to the recycled water to reduce, accessible cistern (1) replenishment, and cistern (1) is through PVC union coupling water pump (6) water inlet, and water pump (6) delivery port coupling hose can be toward adding water in filter tank (3).

As a preferred embodiment, because the culture tank (3) is rectangular, the detachable baffles placed inside the culture tank (3) are divided into two types, one type is a long plate placed on the long side of the culture tank (3) and has the following dimensions: length, width, thickness: 166cm 18cm 0.5cm; the other type is a short plate placed on the wide side of the culture tank (3), and the size is as follows: 56cm 18cm 0.5cm, during installation, the draw-in groove of buckle each other is left on long board, the short slab respectively, be convenient for installation and dismantlement, the draw-in groove size is long wide: 10cm by 0.3cm.

As a preferred embodiment, circular small holes for water flow to pass through are reserved on the long plate and the short plate, and the diameter of each small hole is 0.5cm.

As preferred embodiment, breed the water pump (6) through in filter tank (3) and take out the back, the delivery port through PVC union coupling to the all-in-one of changes in temperature water inlet, all-in-one of changes in temperature water outlet through PVC union coupling to each breed groove, realize breeding water temperature regulation, all-in-one of changes in temperature regulation and control scope: 5-40 ℃ and the temperature error is not more than 2 ℃.

The utility model discloses the principle: the utility model discloses a design and application of a shrimp and crab laboratory culture system. The system comprises: reservoir, water pump, filter-tank, changes in temperature all-in-one, breed groove, oxygen-increasing machine, PVC pipe, can dismantle baffle, fluorescent lamp. The breeding system can be used for remarkably improving the survival rate of laboratory breeding of shrimps and crabs, accurately adjusting the breeding temperature of the system to flexibly adapt to the test requirement, and providing convenience for scientific research personnel to develop the theoretical research of the shrimps and the crabs in a laboratory. The temperature regulation and control are added to the culture water on the basis of filtration and oxygenation, and the temperature regulation and control range is expanded to 5-40 ℃, so that the culture water temperature can be controlled to be kept at a temperature suitable for the growth of shrimps and crabs, and high-temperature or low-temperature stress can be realized, and the influence of the stress temperature on the growth and development of the shrimps and the crabs can be discussed. In addition, the utility model can ensure that the water environment of each shrimp and crab in the same culture tank is basically the same by using the detachable baffle plate with holes, and can distinguish each individual body, thereby being convenient for observing the effect of the treated experimental object in a laboratory; each shrimp and crab individual is independently separated, so that the phenomenon of mutual cannibalism of the same type during the shelling period can be avoided, and the accuracy of data after experimental treatment is improved; meanwhile, the baffle can be removed according to the experimental requirements, so that the shrimps and crabs raised singly are changed into group raising, the individual number of the shrimps and crabs raised is increased, and the raising system is fully utilized.

Has the advantages that: the utility model discloses raw and other materials easily acquire, and the cost is lower, has great practical function, specifically includes following several:

1. the utility model adds the functions of temperature regulation, independent illumination, whole system aeration, single/group cultivation mode exchange and the like on the basis of a circulating water system;

2. the utility model utilizes the detachable baffle to divide the cultivation water tank into areas, and water flow exchange is carried out through the small holes on the baffle, thereby not only ensuring the consistency of the cultivation environment of individuals in the same cultivation water tank, but also providing the condition of single cultivation, thus meeting the single cultivation tests or improving the survival rate, and avoiding the eating of the same kind when shelling;

3. the temperature regulating range of the utility model is 5-40 ℃, which not only can satisfy the most suitable temperature required by daily growth of shrimps and crabs, but also can provide the extreme temperature for carrying out temperature stress test on shrimps and crabs;

4. the utility model not only aerates the water body in the reservoir, but also aerates all the culture tanks in the culture system, and the aeration in each culture tank can be controlled independently, thereby facilitating the maintenance and management of the system;

5. the utility model discloses every breed groove in the system is equipped with the lighting system of independent control, not only can carry out illumination control, also is convenient for daily breed and management to the experimentation.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is the schematic view of the detachable baffle structure of the present invention.

Fig. 3 is a schematic structural view of the detachable baffle plate of the utility model arranged in the culture tank.

Detailed Description

The embodiments of the invention are described in detail below with reference to the drawings: the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiments.

As shown in fig. 1-3, a shrimp and crab culture system based on temperature regulation comprises a reservoir 1, a water pump 5, a filter tank 3, a cooling and heating integrated machine 4, culture tanks 5, an aerator 11, PVC pipes, a detachable baffle, a fluorescent lamp 7 and a culture frame 2, wherein the culture frame 2 comprises four layers, the culture tanks 5 are placed on the three layers, the filter tank 3 is placed on the bottommost layer, PVC pipes are laid on the culture frame 2 for the culture water circulation of each layer of culture tank 5 and the connection of aeration pipes of the aerator 11, the reservoir 1 is connected with the water pump 6 through the PVC pipes, the water outlet of the water pump 6 is connected with the filter tank 3 through the PVC pipes, the filter tank 3 is divided into three sections, a bottom suction type water pump 6 is placed on the third section, the water outlet of the water pump 6 is connected with the water inlet of the cooling and heating integrated machine 4 through the PVC pipes, the cooling and heating water outlets are connected to the upper parts of the culture tanks 5 through the PVC pipes, the culture water is discharged into the culture tanks 5 through circulating water inlets 9, and the circulating water inlets 9 above the culture tanks 5 can be independently controlled through spherical valves; breed groove 5 and have two delivery ports, one is drain 10, through spherical valve control switch, another is circulating water delivery port 8, circulating water delivery port 8 links to each other with the PVC pipe and assembles 3 first parts to the filter-tank, aerator 11 connects air stone 12 through the trachea and is the aeration of cistern 1, also can be for each 5 oxygenation of breeding the groove through connecting the air stone 12 that leads to each breed groove 5 on breeding frame 2 simultaneously, every breed groove 5 is equipped with independent fluorescent lamp 7, it breeds the groove 5 bottoms to be the upper strata on breeding frame 2 on breeding 5 in the groove 5 top, can dismantle the baffle and be located and breed the groove 5, a shrimp, the crab for separating the breed.

Length, width and height of the frame of the cultivation rack 2: 1.65m x 0.6m x 2.5m, the shelf is divided into 4 layers, the upper three layers are provided with culture tanks 5, each layer is 0.6m high, the bottom layer is provided with a filter tank 3, and the layer is 0.7m high. The culture tank 5 has the following dimensions of length, width and height: 160cm 60cm 20cm, two water outlets are arranged at the bottom of the culture tank 5, one water outlet is a circulating water outlet and is connected with a PVC pipe which is 10cm higher than the bottom of the culture tank 5, the other water outlet is a sewage discharge outlet 10 and is used for cleaning the culture system, and the sewage discharge outlet 10 is connected with a water stop valve to control a switch. The PVC pipe can be provided with a bayonet to adjust the circulating water level,

the size of the filter tank 3 is length, width and height: 160cm 60cm 50cm, filter tank 3 divides into triplex, filter media is placed to one, the filter media is placed to two parts, the filter media is not placed to the third part, place water pump 6, the breed water gets into the third part after first, the filtering of two parts, connect the PVC pipe suction in three-layer respective breed groove 3 through the delivery port of water pump 6 again, flow through the delivery port again and assemble to PVC pipe after the water level in breed groove 3 reaches the delivery port height and flow into the filter tank first part, get into the third part after filter tank 3 first, the filtering of two parts, accomplish the circulation.

The reservoir 1 is cylindrical and has the size of diameter x height: 1.2m is 1m, and water storage capacity is 1100L, and cistern 1 is removable assecmbly's canvas pond, has solved the unable problem through laboratory door width of large capacity water storage bucket, when the circulating water system use in owing to inhale incomplete bait and excrement and urine and lead to the recycled water to reduce, accessible cistern 1 supplements, and 6 water inlets of cistern 1 through PVC union coupling water pump, and 6 delivery port coupling hose of water pump can add water toward filter tank 3.

Because breed groove 3 is the rectangle, place and breed 3 inside detachable baffles in groove and divide into two kinds, one kind is to place the long slab of 3 long sides in groove of breeding, and the size is: length, width, and thickness: 166cm 18cm 0.5cm; the other type is a short plate placed on the wide side of the culture tank 3, and the size is as follows: 56cm 18cm 0.5cm, during the installation, leave the draw-in groove of buckle each other on long board, the short slab respectively, be convenient for installation and dismantlement, the draw-in groove size is long wide: 10cm by 0.3cm. Circular small holes for water flow to pass through are reserved on the long plate and the short plate, and the diameter of each small hole is 0.5cm. Breed the water and take the back out through water pump 6 in the filter tank 3, the delivery port through PVC union coupling to the cold and warm all-in-one water inlet, cold and warm all-in-one delivery port through PVC union coupling to each breed the groove, realize breeding water temperature regulation, cold and warm all-in-one temperature regulation and control scope: 5-40 ℃ and the temperature error is not more than 2 ℃.

The water temperature is the most important ecological factor in the aquaculture process, and the change of the water temperature directly influences the growth, development, ingestion, metabolism and other life activities of the procambarus clarkii. When the temperature exceeds the suitable temperature for the survival of the procambarus clarkia, the stress to the organism can be generated. Meanwhile, high temperature is also an important factor causing diseases of the procambarus clarkii, and particularly under the environmental condition of conditional pathogenic bacteria, when the water temperature continuously rises to exceed the tolerance range of the procambarus clarkii, the physiological functions of gills, intestines and stomach, livers and other parts can be damaged, an antioxidant enzyme system in a body is damaged, and respiratory, digestive and excretory systems are damaged to a certain extent, so that the normal physiological skills of the body are influenced, the growth of the procambarus clarkii is influenced and even dies, and irreparable loss is brought to cultivation.

Although the procambarus clarkii has certain high temperature adaptability, if the procambarus clarkii is subjected to high temperature stress for a long time, the procambarus clarkii still causes irreversible damage to the organism, and further the procambarus clarkii is inhibited from growing or even dies. Therefore, the tolerance degree of the procambarus clarkii to high temperature is explored, the limit stress temperature which can be born by the procambarus clarkii is found, and a certain guide and theoretical basis can be provided for practical production.

To explore the limiting temperatures that procambarus clarkii tolerates, the following tests were performed:

the procambarus clarkii for the screening test is characterized in that procambarus clarkii individuals which are healthy, have no disease, are good in vitality, are grayish in body color, have sound support and have complete appendages are selected, the procambarus clarkii individuals which are weighed are screened out and are about 7g in weight are firstly placed in a circulating water system for group culture and temporary culture, the temperature during the temporary culture is 26 ℃, the water body is oxygenated by an aerator to ensure sufficient dissolved oxygen, and the illumination time is illumination: dark 12h: feeding and dirt suction are carried out every morning and evening during the temporary rearing for 12h, the temporary rearing time is one week, and the test is carried out after the temporary rearing is finished;

the experimental design was as follows: in order to explore the extreme high-temperature stress temperature, 2 ℃ is taken as a gradient, five high-temperature groups of 29 ℃, 31 ℃,33 ℃, 35 ℃ and 37 ℃ are set, each temperature group is 3 in number, 18 procambarus clarkii are repeated, the three repetitions are respectively cultured in three layers of culture tanks of a circulating water system, a single culture mode is adopted in the test process, procambarus clarkii individuals are separated through a detachable baffle, and the problem that the accuracy of the test result is influenced due to the fact that the procambarus clarkii is struggled to generate death due to high-temperature stress is avoided. In the test process, the temperature is controlled by the cold-warm integrated machine, and the circulating water in each culture tank is oxygenated by the aerator to ensure sufficient dissolved oxygen. Recording as 0h for starting the test after the water temperature of each temperature group reaches the test temperature, continuing the whole test for 96h, and checking the survival condition of the procambarus clarkii of each temperature group every 2h during the test duration. No feeding was performed during the test period. The illumination condition is the same as that in the temporary culture period.

The test results are as follows:

1. the survival rate of procambarus clarkii at different temperatures is shown in fig. 1, the mortality rate of procambarus clarkii gradually increases with the increase of the stress temperature, no individual of procambarus clarkii dies at 29 ℃ and all the procambarus clarkii individuals die at 37 ℃.

2. Survival rates of procambarus clarkii over time for the different temperature groups are shown in fig. 2, with all procambarus clarkii surviving in the 29 ℃ group until the end of the test; in the 31 ℃ group, no procambarus clarkii individuals die in the period of 60 hours from the beginning of the test, and the death phenomenon of the procambarus clarkii individuals does not occur after 60 hours; the individual death phenomena of different degrees appear in the 33 ℃ and 35 ℃ groups after the test starts, the group area of the 33 ℃ group is stable after 36 hours from the test starts, no dead individual appears, and the dead individual still appears in the 35 ℃ group until the test ends; the 37 ℃ group of procambarus clarkii experienced a number of individual deaths beginning at the onset of stress, and all procambarus clarkii individuals died by the time the test proceeded for 36 hours.

3. The acute high-temperature stress lethal effect and initial lethal temperature (96 h-U I LT 50) of the procambarus clarkii are shown in Table 1, and the initial lethal temperature of the procambarus clarkii is 34.58 ℃, the upper limit of the initial lethal temperature is 35.35 ℃ and the lower limit of the initial lethal temperature is 33.93 ℃ by analyzing the death data of the procambarus clarkii in each stress temperature group.

And subsequent related tests of low temperature stress temperature and extreme low temperature are also carried out, the test groups are 5 ℃, 7 ℃, 9 ℃, 11 ℃ and 13 ℃, the rest operations are the same as the high temperature stress test part, and all the grouped procambarus clarkia individuals survive until the test is finished, so that the procambarus clarkia has a strong low temperature resistant mechanism, the ingestion and growth of the procambarus clarkia can be influenced under the low temperature condition, but the procambarus clarkia individuals cannot die.

The foregoing shows and describes the general principles and features of the present invention, together with the advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (9)

1. A culture system based on circulating water is characterized by comprising a reservoir (1), a water pump (6), a filter tank (3), a cooling and heating all-in-one machine (4), culture tanks (5), an aerator (11), PVC pipes, detachable baffles, fluorescent lamps (7) and a culture frame (2), wherein the culture frame (2) comprises four layers, the culture tanks (5) are arranged on the three layers, the filter tank (3) is arranged on the bottommost layer, the PVC pipes are laid on the culture frame (2) and used for the culture water circulation of each layer of the culture tanks (5) and the connection of aeration air pipes of the aerator (11), the water storage pool (1) is connected with a water pump (6) through a PVC pipe, the water outlet of the water pump (6) is connected with a filter tank (3) through a PVC pipe, the filter tank (3) is divided into three sections, a bottom suction type water pump (6) is placed in the third section, the water outlet of the water pump (6) is connected with the water inlet of the cooling and heating integrated machine (4) through the PVC pipe, the water outlet of the cooling and heating integrated machine is connected to the upper part of each culture tank (5) through the PVC pipe, the culture water is discharged into each culture tank (5) through a circulating water inlet (9), and the circulating water inlet (9) above each culture tank (5) can be independently controlled through a spherical valve; breed groove (5) and have two delivery ports, one is drain (10), control switch through spherical valve, another is circulating water delivery port (8), circulating water delivery port (8) link to each other with the PVC pipe and assemble to filter-tank (3) first part, aerator (11) are connected air stone (12) through the trachea and are cistern (1) aeration, simultaneously through connecting air stone (12) leading to each breed groove (5) on breeding frame (2) for each breed groove (5) oxygenation, every breed groove (5) are equipped with independent fluorescent lamp (7), it breeds groove (5) bottom to be the upper strata on breeding frame (2) to be located to breed groove (5) top, can dismantle the baffle and be located and breed groove (5), be used for separating the shrimp, the crab of breeding.

2. A recirculating water based aquaculture system according to claim 1, wherein the frame of said aquaculture rack (2) is length by width by height: 1.65m 0.6m 2.5m, the shelf is divided into 4 layers, the upper three layers are provided with culture tanks (5), each layer is 0.6m high, the bottom layer is provided with a filter tank (3), and the layer is 0.7m high.

3. A recirculating water-based aquaculture system according to claim 1, characterized in that said tanks (5) have dimensions length by width by height: 160cm 60cm 20cm, two water outlets are arranged at the bottom of the culture tank (5), one water outlet is a circulating water outlet and is connected with a PVC pipe which is 10cm higher than the bottom of the culture tank (5), the other water outlet is a sewage outlet (10) and is used for cleaning the culture system, and the sewage outlet (10) is connected with a water stop valve to control a switch.

4. The circulating water based aquaculture system of claim 1, wherein said PVC pipe is bayonet-mounted to adjust the circulating water level.

5. A recirculating water based aquaculture system according to claim 1, wherein said lauter tun (3) has dimensions of length, width and height: 160cm 60cm 50cm, the filter tank (3) is divided into three parts, one part and two parts are provided with filter materials, the third part is not provided with filter materials, and a water pump (6) is arranged.

6. A recirculating water-based aquaculture system according to claim 1, characterized in that said reservoir (1) is of cylindrical shape, with dimensions of diameter x height: 1.2m is 1m, and water storage capacity is 1100L, and cistern (1) is removable assecmbly's canvas pond, when circulating water system uses in-process because inhale incomplete bait and excrement and urine and lead to the cycle water to reduce, accessible cistern (1) is replenished, and cistern (1) passes through PVC union coupling water pump (6) water inlet, and water pump (6) delivery port connecting hose can add water in toward filter-tank (3).

7. A recirculating water based aquaculture system according to claim 1, characterized in that, since the culture tank (5) is rectangular, the removable baffles placed inside the culture tank (5) are divided into two types, one being a long plate placed on the long side of the culture tank (5) and having the dimensions: length, width, and thickness: 166cm 18cm 0.5cm; the other is a short plate placed on the wide side of the culture tank (5), and the size is as follows: 56cm 18cm 0.5cm, during the installation, leave the draw-in groove of buckle each other on long board, the short slab respectively, be convenient for installation and dismantlement, the draw-in groove size is long wide: 10cm by 0.3cm.

8. The circulating water-based aquaculture system of claim 7, wherein said long and short plates are provided with circular holes for water to pass through, and the diameter of each hole is 0.5cm.

9. The circulating water-based aquaculture system of claim 1, wherein after the aquaculture water is pumped out by the water pump (6) in the filter tank (3), the water outlet is connected to the water inlet of the cold and warm integrated machine through a PVC pipe, the water outlet of the cold and warm integrated machine is connected to each aquaculture tank through a PVC pipe, so that the temperature regulation of the aquaculture water is realized, and the temperature regulation range of the cold and warm integrated machine is as follows: 5-40 ℃ and the temperature error is not more than 2 ℃.

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