JP2002058387A - Apparatus for raising aquatic organism - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for raising aquatic organisms capable of raising the aquatic organisms under conditions adapted to nature and thereby enhancing the survival ratio of the aquatic organisms, deepening overall under standing of the aquatic organisms through learning of the aquatic organisms in combination with an improvement in water quality when used as a teaching material for learning and providing results with high reliability when used as experimental equipment and raising the productivity when used as culture equipment and further simplify the constitution and reduce cost. SOLUTION: This apparatus for raising aquatic organisms comprises a main treating vessel 11, an auxiliary treating vessel 21 and a water area vessel 31 and the interior of the main treating vessel 11 is provided with water treating layers 12 to 14. Water treating layers 22 and 23 at lower levels and a water reservoir part 24 at an upper level are formed in the interior of the auxiliary treating vessel 21. The interior of the water area vessel 31 is a water area 32 for the aquatic organisms and the three vessels 11, 12 and 31 communicate through lower channels 43 and 45. The two vessels 21 and 31 communicate through upper channels 47 and circulating driving systems 61 and 71 having pumps 62 and 72 are further provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention is suitable for use in teaching materials for learning about aquatic organisms (aquatic organisms) and water treatment, equipment for conducting experiments on aquatic organisms, equipment for culturing aquatic organisms, and the like. Aquatic creature breeding equipment.

[0002]

2. Description of the Related Art Water bodies such as rivers, lakes, marshes, ponds, seasides, various waterways, and paddy fields tend to gradually deviate from nature due to man-made operations for flood control and water use. And landfills are reducing water bodies. It has already been pointed out that these factors contribute to environmental destruction. Some have pointed out that the spraying of chemicals and the influx of domestic wastewater are spurring environmental destruction. On the other hand, living organisms (especially small animals) that live in these waters are also decreasing due to environmental destruction,
The ecosystem is disrupted. Some species are becoming extinct.

[0003] In the past, the above-mentioned water area has been used for observing and collecting various small animals living there. Such contact with nature led to learning creatures. However, at present, it is becoming difficult to observe small animals even in the countryside.

[0004] Under such circumstances, small animals such as small fish and aquatic insects are often bred at home.
Specifically, these small animals are raised in a water tank or the like.
The purpose of breeding is appreciation or ecological observation.
Such domestic breeding is also significant.

[0005]

However, breeding aquatic organisms using a water tank or the like is far from nature. Even if schoolchildren try to acquire biological-related knowledge through such breeding, they will see a part of nature's providence,
Then, it is difficult to deepen understanding. Furthermore, many aquatic organisms depend on the quality of water to determine whether they are alive. It is supported by natural purification. However, aquarium breeding lacks a mechanism for improving water quality through the action of natural purification. Therefore, the existing breeding method cannot expect the learning effect based on such a thing. Interest in environmental issues also diminishes. In addition, the breeding method without water purification means has a low survival rate of aquatic organisms.

[0006] Experimental breeding of aquatic organisms for research,
Such is desirable because reliable data can be obtained by collecting data in relation to actual water quality. Maintaining water quality is essential even for aquaculture. In addition, with regard to this kind of breeding apparatus, it is also important to simplify the structure and reduce the cost.

[0007]

SUMMARY OF THE INVENTION The present invention has been made to solve such a technical problem. Therefore, the object of the present invention is as follows. One is an aquatic breeding device that can be applied to any learning materials, experimental facilities, aquaculture facilities, etc. for aquatic creatures, which can breed aquatic creatures under natural conditions, thereby enabling the survival of aquatic creatures. It is to provide something that can increase the rate (yield). The other is to provide a material that can enhance these comprehensive understandings through aquatic creature learning that also improves water quality when used as learning materials. Still another is to provide a product that can obtain highly reliable results when used as an experimental facility, and can maintain a clean water quality when used as an aquaculture facility. It is. The other one is to provide one that simplifies the configuration and satisfies cost reduction.

[0008]

Means for Solving the Problems The aquatic organism breeding apparatus according to the first aspect of the present invention is characterized by the following means for achieving the intended purpose. That is, the aquatic organism breeding apparatus according to claim 1 includes a main treatment tank and a sub-treatment tank, and a water treatment layer is provided inside the main treatment tank. A lower water treatment layer and a higher water reservoir are provided therein; and
The main treatment tank and the sub-treatment tank communicate with each other via lower and upper water passages provided at the lower and upper portions, respectively.

The aquatic organism breeding apparatus according to claim 2 of the present invention is characterized by the following means for solving the problem in order to achieve the intended purpose. That is, the aquatic organism breeding apparatus according to claim 2 includes a main treatment tank and a sub-treatment tank, and a water treatment layer is provided inside the main treatment tank.
And a lower water treatment layer and an upper water storage section are provided inside the sub-treatment tank, and a lower water channel in which the main treatment tank and the sub-treatment tank are provided at the lower part and the upper part, respectively. -It is characterized in that it communicates with each other via the upper water channel, and that a circulation drive system having a pump is provided over the sub-treatment tank and the main treatment tank.

An aquatic breeding apparatus according to claim 3 of the present invention is characterized by the following means for solving the problems in order to achieve the intended purpose. That is, the aquatic organism breeding apparatus according to claim 3 includes a main processing tank, a sub-processing tank, and a water area tank,
And, that the water treatment layer is provided inside the main treatment tank, and that the lower water treatment layer and the upper water storage section are provided inside the sub-treatment tank, and The inside is a water area for aquatic organisms, and the main treatment tank, the sub-treatment tank, and the water area tank communicate with each other through lower waterways provided below these, and The treatment tank and the treatment tank are communicated with each other via an upper water channel provided above the treatment tank.

An aquatic breeding apparatus according to a fourth aspect of the present invention is characterized by the following means for solving the problems in order to achieve the intended purpose. That is, the aquatic organism breeding apparatus according to claim 4 includes a main treatment tank, a sub-treatment tank, and a water tank.
And, that the water treatment layer is provided inside the main treatment tank, and that the lower water treatment layer and the upper water storage section are provided inside the sub-treatment tank, and The inside is a water area for aquatic organisms, and the main treatment tank, the sub-treatment tank, and the water area tank communicate with each other through lower waterways provided below these, and The treatment tank communicates with each other via an upper water channel provided on the upper part thereof, and a circulation drive system having a pump extends between the water tank and the main treatment tank and / or the sub-treatment tank and the water tank. It is characterized by being provided.

According to a fifth aspect of the present invention, there is provided an aquatic organism breeding apparatus according to the second or fourth aspect, wherein the circulating drive system having a manual pump and the circulating drive system having an electric pump are selected. It is characterized by having more than one.

According to a sixth aspect of the present invention, there is provided the aquatic breeding apparatus according to any one of the first to fifth aspects, wherein all the tanks are adjacent to each other.

According to a seventh aspect of the present invention, there is provided the aquatic organism breeding apparatus according to any one of the first to sixth aspects, wherein all the tanks are arranged concentrically.

An aquatic organism breeding apparatus according to claim 8 of the present invention is characterized in that, in any one of claims 1 to 7, a plant is present on the upper side of the sub-treatment tank.

[0016]

With reference to one embodiment of the aquatic organism breeding apparatus according to the present invention, the main processing tank, the sub-processing tank, and the water area tank communicate with each other through lower channels. The circulation drive system pours water from the water tank into the main treatment tank when the pump is operated. The main treatment tank purifies the sent water in the water treatment layer here. The water after purification in the main treatment tank returns to the water tank through the lower channel of each tank. In this way, the water in the water area tank is as follows: water area tank → circulation drive system → main treatment tank → lower water channel →
It circulates and flows in the path of the water tank, and in the process, the water treatment layer of the main treatment tank purifies the circulating water. When the pump is activated,
The water in the sub-treatment tank also circulates and flows. This is because the water in the water area tank flows in the order of sub-treatment tank → lower water channel → water area tank → circulation drive system → main processing tank → lower water channel → sub-treatment tank. In the process, the water in the sub-treatment tank is purified by the water treatment layer. In addition, there are plants in the sub-treatment tank, and the roots and the like absorb water contaminants (organic substances), which also increases the water quality of the sub-treatment tank. Since such treated water is distributed to the water area tank and the sub-treatment tank, the water quality in the water area in the water area tank and the water storage portion of the sub-treatment tank is guaranteed. A high survival rate can be expected for aquatic organisms bred in places with good water quality. The aquatic organisms move between these tanks because the water tank and the sub-treatment tank communicate with each other in the upper channel. This is desirable so that the sub-treatment tank with the plants also becomes a spawning ground for aquatic organisms. Then the aquatic organisms multiply. With the breeding of aquatic organisms, it is possible to observe the aquatic organisms, collect data, and deepen their understanding according to the purpose, such as learning and experiments.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an aquatic breeding apparatus according to the present invention will be described first with reference to FIGS. 1 and 2. FIG.

1 and 2, the main processing tank 11, the sub-processing tank 21 and the water area tank 31 are arranged concentrically with the main processing tank 11 at the center, the sub processing tank 21 at the center, and the water area tank 31 at the outside. In. The bottom wall 41 of each of the tanks 11 to 31 is formed in a series. The three vertical walls 42, 45, and 48 that surround and partition each of the tanks 11 to 31 also serve as those of the two adjacent tanks. Of the respective elevation walls 42, 45, 48, the innermost elevation wall 42 is higher than the other elevation walls 45, 48. A plurality of lower water channels 43 distributed in the circumferential direction are provided below one elevation wall 42, and two holding holes 44a and 44b are located at an upper portion of the elevation wall 42 in opposition. A plurality of lower water passages 46 distributed in the circumferential direction are provided below the other elevation wall 45, and a plurality of upper water passages 47 distributed in the circumferential direction are provided above the elevation wall 45. The lower water channel 43 and the upper water channel 47 in this illustrated example are formed in a hole shape. Thus, the main processing tank 11 and the sub-processing tank 21 communicate with each other via the lower water channel 43. The sub-treatment tank 21 and the water area tank 31 also communicate with each other through the lower water channel 46 or communicate with the upper water channel 47. By the way, since the aquatic organisms move back and forth between the sub-treatment tank 21 and the water area tank 31 in the upper waterway 47,
It can be said like a fishway. On the other hand, a pump chamber 49 and a pump support cylinder 50 are provided inside the water area tank 31. Holes 51 and 52 through which water passes are formed in the inner walls of the pump chamber 49 and the pump support cylinder 50, respectively.

Referring to FIGS. 1 and 2, a plurality of water treatment layers 12 to 14 are provided inside main treatment tank 11. Of these, the water treatment layer 12 comprises a filtration layer, the water treatment layer 13 comprises an anaerobic treatment layer, and the water treatment layer 14 comprises an aerobic treatment layer. These layers 12 to 14 are laminated in the main treatment tank 11 in the order of the water treatment layer 12, the water treatment layer 13, and the water treatment layer 14. Usually, the water treatment layer 13 is
The water treatment layer 14
Is set to be equal to or higher than the water surface WL of the water area tank 31. Therefore, the water surface WL in this case is a measure of the boundary between the two layers 13 and 14.

There are a plurality of water treatment layers 22 and 23 in the sub-treatment tank 21 as shown in FIGS. Also in this case, one water treatment layer 22 is a filtration layer and the other water treatment layer 23 is an anaerobic treatment layer. These layers 22 and 23 correspond to the main processing tank 1
In 1, the water treatment layer 22 is laminated and formed such that the water treatment layer 23 is below and the water treatment layer 23 is above. Above the water treatment layer 23 in the sub-treatment tank 21 is a reservoir 24. The reservoir 24 is a flooding station suitable for aquatic life. In the sub-treatment tank 21, the plant 25 is planted, for example, in the water treatment layer 23 and extends above the water storage section 24.

As is clear from FIGS. 1 and 2, the water tank 3
The inside of 1 is a water area 32 in which aquatic organisms are active.
This water area 32 is also filled with water suitable for aquatic life.

Referring to FIGS. 1 and 2, there are two types of circulation drive systems. One circulation drive system 61 includes an electric pump 62 having a suction port and a discharge pipe 63. The other circulating drive system 71 includes a manual pump 72, a suction pipe 73, and a discharge pipe 74.
It is composed of Regarding one circulation drive system 61, the electric pump 62 is housed in the pump chamber 49 of the water area tank 31, the discharge pipe 63 is passed through the holding hole 44 a of the vertical wall 42, and the discharge end is in the main processing tank 11. Be drawn in. Thus, the circulation drive system 61 is provided over the water area tank 31 and the main processing tank 11. As for the other circulation drive system 71, the suction pipe 73 is inserted into the pump support cylinder 50 of the water area tank 31,
The discharge pipe 74 is passed through the holding hole 44 b of the vertical wall 42, and the discharge end is drawn into the main processing tank 11. Thus, the circulation drive system 62 is also provided over the water area tank 31 and the main treatment tank 11.

The main processing tank 11 and the sub-processing tank 21 described above.
-The water tank 31, the pump chamber 49, the pump support cylinder 50, etc. are made by arbitrarily selecting a known material such as a synthetic resin (including FRP), a metal, a ceramic, a glass, a concrete, a wood, and a composite material thereof. Things. The electric pump 62 and the discharge pipe 63 of the circulation drive system 61 are also well known,
The manual pump 72, the suction pipe 73, and the discharge pipe 74 of the circulation drive system 71 are also known. A specific example of the circulation drive system 71 is a well-known tool used for pumping kerosene or the like.

In the above, the water treatment layer 12 as a filtration layer
Reference numeral 22 denotes a layered member made of, for example, natural fibers, synthetic fibers, and metal fibers. Specifically, any one of woven fabric, non-woven fabric, mesh, and porous (continuous pores), or a combination of a plurality thereof is used. The water treatment layers 12 and 22 also have a function of preventing fine particles such as soil and sand from moving in the water flow. The water treatment layers 13 and 23, which are anaerobic treatment layers, are made of soil, sand,
Natural products such as pebbles, crushed rocks, shells, coral, wood, and activated carbon, as well as man-made products such as ceramics (eg, ceramic fragments) and charcoal (crushed to an appropriate size) Or a combination of a plurality of these at an appropriate ratio. Water treatment layer 1 as aerobic treatment layer
4 is also the same as the water treatment layers 12 and 22.

For the plant 25, rice (seedling) is schematically shown in the examples of FIGS. The plant 25 may be an aquatic plant such as a draft plant, floating leaf plant, submerged plant, floating plant, or algae. In the sub-treatment tank 21, there may be a plurality of plants 25 of the same species or a plurality of plants of different species.

A case in which aquatic creatures are bred using the aquatic creature breeding apparatus illustrated in FIGS. 1 and 2 will be described below.
The aquatic organisms (small animals) bred in this case are "medaka" (several dozen). The plant 25 in the sub-treatment tank 21 is “rice (seedling)”, and the water to be used is “irrigation water” or “tap water (about two days of standing water)”. The scale of the apparatus is such that the outer diameter (diameter) of the water tank 31 is about 1 m and the height of the water treatment layer 14 is 40 c.
m. Use commercial products as medaka bait.

In the aquatic organism breeding apparatus shown in FIGS. 1 and 2, the medaka uses the water area 32 of the water area tank 31 as a main place of activity, and sometimes the water area 32 of the water area tank 31 and the sub-treatment tank 2 through the upper water channel 47.
It travels back and forth with the first water reservoir 24. The water reservoir 24 of the sub-treatment tank 21 may serve as a medaka resting place or an egg laying ground. The water area 32 and the reservoir 24 are annular as is clear from FIG. This is desirable because it is a swimming area with no end for medaka. In particular, since the water area 32 is located on the outermost side and has the largest diameter, it also becomes a large swimming area. Feed medakas in captivity in a timely manner. It is unlikely that the water in each tank will be rapidly polluted by breeding medaka. Therefore, the number of times of purifying water using one or both of the two circulation drive systems 61 and 71 may be about every other day or about once every three days. One circulation drive system 61 for purifying water
Is used, the electric pump 62 is switched on. Thus, the water in the water area tank 31 is sucked into the inside of the electric pump 62 from the suction port thereof, and is poured into the main processing tank 11 by the discharge pipe 63. The poured water permeates the main treatment tank 11 in the order of the water treatment layer 14 → the water treatment layer 13 → the water treatment layer 12, and undergoes the following purification treatment in the process. The upper water treatment layer 14 is in a state of being in contact with the outside air and maintains an aerobic atmosphere, so that there are many aerobic microorganisms. The water that permeates the aerobic water treatment layer 14 has a BOD value · C because pollutants contained therein are decomposed by aerobic microorganisms.
Lower OD value, SS value, etc. The intermediate water treatment layer 13 is in a submerged state where it does not come into contact with the outside air and maintains an anaerobic atmosphere, and thus contains many anaerobic microorganisms. Water that permeates the anaerobic water treatment layer 13 after the above treatment is subjected to digestion treatment from ammonia nitrogen to nitrate nitrogen by anaerobic microorganisms, so that pollutants such as nitrogen compounds contained therein are removed. . The water that has reached the lower water treatment layer 12 via these layers 14 and 13 is filtered here to further lower the SS value. Water that has been subjected to these treatments in the main treatment tank 11
It flows in the suction direction to receive the suction action of the electric pump 62. That is, the treated water having good water quality is supplied to the main treatment tank 11.
Of the sub-treatment tank 21 → the lower water path 46 → the water area tank 31. Therefore, the water quality of the water area tank 31 does not decrease. Electric pump 62
When is operated, the inside of the sub-treatment tank 21 is also sucked. Therefore, the water after permeating the water treatment layers 23 and 22 flows into the water area tank 31 through the lower water passage 46. By the way, the water in the sub-treatment tank 21 absorbs phosphorus and other organic substances through the roots of the plant 25 or the like, and decomposes pollutants by aerobic microorganisms in the water treatment layer 23. After being filtered at 22, the water flows into the water tank 31. This also maintains the water quality of the water tank 31 at a high level. The reduced amount of water in the sub-treatment tank 21 is
It is supplemented by the water flowing into the water area tank 31 through 7. Therefore, the circulation of water is established between the two tanks 21 and 31. When using the other circulation drive system 71, the manual pump 7
2 may be squeezed repeatedly. By doing so, the water in the water area tank 31 is sucked into the suction pipe 73 and poured into the main processing tank 11 from the discharge pipe 74. Thereafter, the circulation of water is substantially the same as when the electric pump 62 is operated, and the resulting water circulation keeps the water quality of the water area tank 31 and the sub-treatment tank 21 at a high level.

In the above, which of the two circulation driving systems 61 and 71 is used is optional. Double circulation drive system 61
-It is also free to use both 71. Each feature is as follows. With the circulating drive system 61 provided with the electric pump 62, labor for circulating water can be saved. Further, by keeping the electric pump 62 in a switch-on state, water can be circulated constantly. The slow current produced by this steady circulation favorably affects the medaka, the habit of swimming against the current. In contrast, the circulation drive system 71 including the manual pump 72 requires a manual pump operation,
Enables water circulation in the event of a power outage or where there is no power equipment.

As described above, the aquatic organism breeding apparatus shown in FIGS. 1 and 2 purifies the water in the water area tank 31 and the sub-treatment tank 21 to maintain the water quality at a certain level or more, so that water pollution and the like hardly occur. It prolongs the life of medaka and thus improves survival. In addition, since the sub-treatment tank 21 in which the plant 25 is located becomes an egg laying ground, the growth of medaka can also be measured. This apparatus can also be regarded as a natural environment where medaka lives, since the water area tank 31 can be regarded as an irrigation channel, the sub-treatment tank 21 as a paddy field, and the internal structure of the main treatment tank 11 as a natural stratum. In other words, raising medaka with this device is substantially the same as raising medaka under natural conditions. Therefore,
When observing and learning medaka daily through such breeding, learning results equivalent to those of on-the-job learning are obtained, and the understanding of medaka is deepened. Plant 2
When 5 is a rice seedling, it is possible to learn from rice planting to harvesting. On the other hand, the main processing tank 11 and the sub-processing tank 21
The water purification action in the country also corresponds to the natural purification action, so you can also learn about the mechanism of water quality improvement,
To acquire understanding and consideration for the natural environment.

The aquatic breeding apparatus shown in FIGS. 1 and 2 has the following design modifications. One is the main treatment tank 11.
One of the sub-treatment tank 21 and the water area tank 31 is eccentric with respect to the other tanks. The next one is to make any one, two or all of the main processing tank 11, the sub-processing tank 21, and the water area tank 31 into a polygon having a shape of a triangle or more when viewed from a plane. A particularly desirable polygonal shape is a quadrangle or more. Another one is to plant terrestrial plants and draft plants in the water treatment layer 12 of the main treatment tank 11, and to provide aquatic plants (floating leaf plants, floating plants, algae, etc.) in the water area 32 of the water area tank 31. . Conversely, the plant 25 may be omitted from the sub-treatment tank 21. Still another one is to form a gravel layer with gravel or the like at the bottom in the water area tank 31. In this case, sand and gravel are pump 62.7
It is preferable to cover the suction end with a sandproof net or the like so that the suction end is not sucked into the inside. The other one relates to an increase / decrease in the circulation drive system and a change in the equipment location. When adding a circulation drive system, the circulation drive system 61 and / or 71
Into the sub-processing tank (suction side) 21 and the main processing tank (discharge side) 11
To be provided. When changing the location of the circulation drive system, a circulation drive system 61 and / or 71 is provided between the sub-processing tank 21 and the main processing tank 11 instead of between the two tanks 21. When reducing the number of circulation driving systems, one or both of the two circulation driving systems 61 and 71 are omitted. If there is no circulation drive system 61/71,
The water in the water tank 31 is scooped by an instrument, and the water is collected in the main treatment tank 11.
Pour into. 1 and 2, the main processing tank 11, the sub-processing tank 21, and the water area tank 31 located at the center, middle, and outside may be freely changed in arrangement. Among them, it is desirable that the sub-treatment tank 21 and the water area tank 31 be adjacent to each other because an upper waterway and a lower waterway are easily formed. When the main processing tank 11 is interposed between the sub-processing tank 21 and the water area tank 31, the bottom of the main processing tank 11 and the bottom of the sub-processing tank 21 are connected by a tubular lower water channel 43, and the sub-processing is performed. The bottom of the tank 21 and the bottom of the water tank 31 are connected by a tubular lower water passage 46, and the upper part of the sub-treatment tank 21 and the upper part of the water tank 31 are connected by a tubular upper water passage 47. About each tank 11,21,31,
These may be independent and separated from each other. Also in this case, the bottoms of the two tanks 11 and 21 are connected by a tubular lower channel 43, and the bottoms of the other two tanks 21 and 31 are connected by a tubular lower channel 46.
And the upper portions of both tanks 21 and 31 are connected by a tubular or groove-shaped upper channel 47.

Regarding aquatic organisms, in addition to various freshwater fish known as medaka, crucian carp, moroko, etc., aquatic insects such as turtles and beetles, aquatic larvae such as yago (larva of insects), shrimp Crustaceans such as crabs and shellfish such as snails can also be raised. This device also allows different species of aquatic organisms to be bred together. Organisms (seafood and other small animals) that live in the sea or on the coast can also be bred. In that case, water containing salt or seawater is put into each tank.

The aquatic creature breeding apparatus shown in FIGS. 1 and 2 mainly describes that learning is performed while breeding aquatic creatures. However, the aquatic creature breeding apparatus of FIGS. 1 and 2 can be applied not only to learning materials for learning but also to aquatic creature research facilities and aquaculture facilities by increasing the scale. When this device is used as a research facility or aquaculture facility, the usage is not substantially different from the above.

Next, another embodiment of the aquatic organism breeding apparatus according to the present invention will be described with reference to FIGS.

The aquatic breeding apparatus illustrated in FIGS. 3A and 3B includes a main processing tank 11 and a sub-processing tank 21, but does not include a water area tank 31. In this case, lower channel 4
Numeral 6 is provided at a lower portion of the raised wall 42, and an upper water channel 47 is provided at an upper and lower middle portion of the raised wall 42. Therefore, the main processing tank 11 and the sub-processing tank 21 communicate with each other through the lower water channel 46 and the upper water channel 47. Other items in the embodiment of FIG. 3 are substantially the same as or similar to those described in the embodiment of FIGS. Among technologies described in the embodiment of FIGS. 1 and 2, technologies that are within the scope of compatibility and design change are also adopted in the embodiment of FIG. 3, including the provision of the circulation systems 61 and 71. be able to.

The aquatic breeding apparatus illustrated in FIGS. 4A and 4B is similar to the case of FIGS.
A sub-treatment tank 21 and a water area tank 31 are provided. 4 is different from the previous example in that the two elevation walls 42.4 which form an arc shape are different from each other.
5, the inside of the circular vertical wall 48 is partitioned and each of the tanks 11 ・ 21 ・
That is, 31 partitions are formed. Therefore, FIG.
Other matters in the embodiment are substantially the same as or similar to the matters described in the embodiment of FIGS. FIG.
-Among the matters described in the embodiment of FIG. 2, technologies that are within the scope of compatibility and design change may be adopted in the embodiment of FIG. 4, including the provision of the circulation systems 61 and 71. it can.

The aquatic organism breeding apparatus illustrated in FIGS. 5A and 5B also has a main processing tank 11 and a sub-processing tank 21 similar to the previous example.
-A water tank 31 is provided. There are roughly two different points in the apparatus of FIG. 5 from the previous example. One of them is each tank 11.
21 and 31 are square when viewed from above. The other is that the main processing tank 11 is other than the other tanks 21 and 31.
It is set to a higher position than that. A lower water passage 46 for connecting the main processing tank 11 and the sub-processing tank 21 is formed at the upper and lower middle portion of the vertical wall 42. And the water surface WL of other tanks. Other items in the embodiment of FIG. 4 are substantially the same as or similar to the items described in the embodiment of FIGS. Among technologies described in the embodiment of FIGS. 1 and 2, technologies that are within the scope of compatibility and design change are also adopted in the embodiment of FIG. 5, including the provision of the circulation systems 61 and 71. be able to.

[0037]

The aquatic breeding apparatus according to the present invention has the following effects.

In the apparatus of the present invention, the internal structure of each tank and the related structure of each tank are made by imitating the natural reference. When breeding aquatic organisms, the water in the breeding ground is circulated and purified by the water treatment layer. This means breeding aquatic organisms under natural growth conditions while maintaining a high level of water quality in the breeding ground. Therefore, according to the apparatus of the present invention, breeding of aquatic organisms having a high survival rate (yield) can be realized regardless of whether it is used as a learning material for aquatic organisms, experimental equipment, aquaculture equipment, or the like.

When the device of the present invention is used as a learning material for aquatic organisms, it is possible to learn not only biological learning in connection with nature, but also to learn a mechanism for improving water quality by the action of purifying nature. Therefore, when this device is viewed as this kind of learning teaching material, the comprehensive understanding of these can be deepened through the learning of aquatic creatures together with the improvement of water quality, and the awareness of environmental issues also increases. When the device of the present invention is used as an experimental facility for aquatic organisms, breeding under natural conditions can provide highly reliable results, and the device of the present invention is used as an aquaculture facility for aquatic organisms. Also in this case, productivity can be increased depending on the above high water quality.

The apparatus of the present invention has a simple structure in which a tank containing water or a tank having a water treatment layer is combined, or a simple structure in which a circulation drive system is combined therewith. Therefore, it is possible to reduce the cost without any particular difficulty in manufacturing the device.

The apparatus of the present invention can be used for learning teaching materials, experimental facilities, aquaculture facilities, and the like, as described above, and thus has a wide range of application.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing a first embodiment of the present invention.

FIG. 2 is a cross-sectional view of the device of FIG.

FIG. 3 is a plan view and a longitudinal sectional view schematically showing a second embodiment of the device of the present invention.

FIG. 4 is a plan view and a longitudinal sectional view schematically showing a third embodiment of the device of the present invention.

FIG. 5 is a plan view and a longitudinal sectional view schematically showing a fourth embodiment of the device of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Main treatment tank 12 Water treatment layer 13 Water treatment layer 14 Water treatment layer 21 Sub treatment tank 22 Water treatment layer 23 Water treatment layer 24 Reservoir 25 Plant 31 Water area tank 32 Water area 43 Lower water path 46 Lower water path 47 Upper water path 49 Pump Chamber 50 Pump support cylinder 51 Hole 52 Hole 61 Circulation drive system 62 Electric pump 63 Discharge pipe 71 Circulation drive system 72 Manual pump 73 Suction pipe 74 Discharge pipe

Continued on the front page (51) Int.Cl. ⁷ Identification code FI Theme coat II (reference) C02F 3/32 B01D 35/02 CF term (reference) 2B104 AA03 AA08 AA16 AA17 AA22 CA03 CA07 CB04 CB07 ED02 ED08 ED20 ED26 ED36 EE10 EE13 4D003 AA01 AA02 AB08 BA02 BA05 CA02 CA08 DA03 DA11 EA01 EA14 EA23 EA24 EA25 4D040 CC02 CC05 CC07 4D064 AA07 BD04 BD05 BD11 BD17

Claims (8)

[Claims] (1) having a main processing tank and a sub-processing tank;
And that a water treatment layer is provided inside the main treatment tank, and that a lower water treatment layer and an upper water storage section are provided inside the sub-treatment tank, and that the main treatment tank is provided. And the sub-treatment tank communicates with each other via lower and upper water channels provided at the lower and upper portions, respectively. 2. It has a main processing tank and a sub-processing tank,
And that a water treatment layer is provided inside the main treatment tank, and that a lower water treatment layer and an upper water storage section are provided inside the sub-treatment tank, and that the main treatment tank is provided. And the sub-treatment tank communicate with each other via lower and upper water passages respectively provided at the lower and upper parts thereof, and a circulation drive system having a pump is provided over the sub-treatment tank and the main treatment tank. An aquatic creature breeding device characterized in that: 3. A main treatment tank, a sub-treatment tank, and a water area tank, a water treatment layer is provided inside the main treatment tank, and a lower treatment tank is provided inside the sub-treatment tank. That the water treatment layer and the upper reservoir are provided, and that the inside of the water tank is a water area for aquatic organisms, and that the main treatment tank, sub-treatment tank, and water tank are An aquatic organism, wherein the aquatic organisms communicate with each other via a lower water channel provided at a lower portion thereof, and the water area tank and the sub-treatment tank communicate with each other via an upper water channel provided at an upper portion thereof. Breeding equipment. 4. A main treatment tank, a sub-treatment tank, and a water area tank, a water treatment layer is provided inside the main treatment tank, and a lower treatment tank is provided inside the sub-treatment tank. That the water treatment layer and the upper reservoir are provided, and that the inside of the water tank is a water area for aquatic organisms, and that the main treatment tank, sub-treatment tank, and water tank are A water tank and a sub-treatment tank are in communication with each other through an upper water channel provided above them, and a pump is provided, which is in communication with each other through lower water channels provided in these lower portions. An aquatic organism breeding apparatus, wherein a circulation drive system is provided over a water area tank and a main processing tank and / or a sub processing tank and a water area tank. 5. The aquatic breeding apparatus according to claim 2, further comprising at least one selected from a circulation drive system having a manual pump and a circulation drive system having an electric pump. 6. The method according to claim 1, wherein all the tanks are adjacent to each other.
The aquatic organism breeding apparatus according to any one of claims 1 to 5. 7. The aquatic breeding apparatus according to claim 1, wherein all the tanks are arranged concentrically. 8. The aquatic breeding apparatus according to claim 1, wherein a plant is present on an upper side of the sub-treatment tank.