JP4094015B2 - Shell culture equipment - Google Patents

Description

  The present invention relates to a shell culture apparatus.

  As a means of efficiently raising shellfish growing on sand, shellfish are being cultivated actively in various places by means of aquaculture equipment that artificially forms sand that is the living environment of shellfish. By performing such aquaculture, shellfish can be produced in a productive manner, for example, even on a coast without sand.

In the past, for example, in order to cultivate bivalves, a barrel container made of, for example, hard plastic has been used as an aquaculture container, and this barrel container was submerged in the sea, and juvenile shellfish were cultured.
By the way, when using a barrel-shaped container made of hard plastic for shellfish cultivation, the use of it in seawater leads to the aging of the plastic, and the fine particles in the ocean collide with each other due to the influence of waves and cracks occur. In some cases, there was a problem that the container was damaged without leaving its appearance as a container, and as a result, the grown shellfish escaped.

  In addition, the conventional barrel-type aquaculture device has a problem that it is expensive.

  In view of such circumstances, the present invention can cultivate bivalves efficiently and inexpensively, and even if an impact is applied during transportation or use, there is a risk of damage to the culture vessel body. An object of the present invention is to provide a shell culture apparatus that can supply a living environment that is small and that is favorable for shell growth.

In order to achieve the above object, a shell culture apparatus according to the present invention comprises:
An aquaculture container body made of a substantially arm-shaped foamed synthetic resin, which is placed in water in a state where juvenile shellfish and sand are accommodated, and an opening is formed in the upper part,
A cylindrical net that is arranged so as to surround the periphery of the opening of the aquaculture container body, the opening for operation is formed in the upper part, and the upper part and the lower part are opened ;
A thin string for opening and closing the opening for operation formed in the mesh body;
A rope-like string that connects the aquaculture container main body in the vertical direction, and
The bottom surface side of the aquaculture container body is formed in a bottom bud, and when a plurality of the container bodies are stacked vertically, the lower part of the upper culture container body is accommodated in the opening of the lower culture container body. Are stacked in multiple stages,
Two or more types of nets having different mesh sizes are prepared, and these are used properly according to the growth of juvenile shellfish, and each net is approximately equal to the outer diameter of the aquaculture container body. It is attached to the outside of the aquaculture container main body in a posture that is held by two ring-shaped members having a diameter and expanded in a cylindrical shape,
A collar is formed on the outer surface of the opening of the aquaculture container body, and one of the ring-shaped members is locked on the lower surface of the collar to be immovable.
A flow-stopping weight is detachably attached to the lower end of the rope-like string suspended from the aquaculture container body,
When the upper end of the rope-like string is held and lifted, the space between the two ring-shaped members in the mesh-like body is stretched in the vertical direction .

  According to the present invention having such a configuration, it is lightweight and convenient to carry, and can be used by being connected in the vertical direction in the sea. Even if an impact force is applied by particles or the like, it is destroyed. In addition, it can be mass-produced at low cost.

Further, the net-like body is detachably attached to the outside of the aquaculture container main body in a posture that is held by two ring-shaped members having a diameter substantially equal to the outer diameter of the aquaculture container main body and expanded in a cylindrical shape. Therefore, it is easy to attach and detach the mesh body to the culture container body.
In addition, a hook is formed on the outer surface of the opening of the aquaculture container body, and one of the ring-shaped members is locked to the bottom surface of the hook so as not to move. Can be installed impossible.
In addition, according to the present invention, the flow-stopping weight is detachably attached to the lower end portion of the rope-like string body suspended downward from the aquaculture container main body, so that the flow of the tide becomes faster. Even if the waves become large, it is possible to prevent the aquaculture container body from shaking or flipping upside down in an unreasonable posture.
Further, in the present invention, the bottom side of the aquaculture container body is formed as a bottom bud, and when a plurality of the container bodies are stacked in the vertical direction, the lower culture tank body is the lower culture container body. Since it is accommodated in the opening and stacked in multiple stages, the transportation / loading efficiency is improved, and it can be stored in one place when it is lifted from the sea or managed on land.
In addition, two or more types of meshes having different mesh sizes are prepared, and these are used properly as the juvenile grows, so that the shell does not hinder the growth of the shell. The mesh size of the mesh can be changed according to the growth of the mesh. Therefore, when the shells are fully grown, they will have a large mesh, which will actively promote the invasion of seaweed and other foods that will serve as food, as well as leave waste and actively discharge waste products such as feces. Is possible.

Embodiments of the present invention will be described below with reference to the drawings.
1 and 2 show a shell culture apparatus according to an embodiment of the present invention.
This aquaculture apparatus 10 is mounted so as to surround the outer side of the aquaculture container body 2 made of, for example, foamed styrene and has an opening 2a in the upper part, and an operation opening 4 is formed in the upper part. In addition, the cylindrical mesh body 6 opened at the lower part, the thin string 8 used to open and close the upper operation opening 4 provided in the mesh body 6, and the culture container body 2 in the vertical direction It is provided with a rope-like string body 12 that is connected in several stages.

  The opening 4 for operation of the mesh body 6 is expanded when the juvenile shellfish is set in advance with sand in the lower culture container body 2 or when the grown shellfish is taken out later. Therefore, it is flexible and deformable so that it can be fully opened.

The thin string 8 is used to close or open the operation opening 4 of the mesh 6 and has an appropriate length and is lightly tied in the sea so that the operation opening 4 is closed. Is done.
In this way, the aquaculture device 10 is roughly divided into two units: a culture container body 2 made of foamed synthetic resin and a net unit 14 mainly composed of a synthetic resin net.

  The aquaculture container main body 2 has an appropriate thickness and is formed in a half-divided body having an opening 2a formed in the upper portion, that is, in a substantially arm shape. In addition, a notch part may be provided in the upper peripheral surface of the aquaculture container main body 2, and the flow of water from the side may be promoted by the notch part. In addition, a collar portion 2 b is formed on the outer surface of the opening 2 a of the culture container body 2. Since such a culture container main body 2 is formed from a foamed synthetic resin, it has appropriate elasticity. Therefore, even if an impact is applied to the side, the buffering action is exhibited, so that cracks, breakage, and the like can be prevented. In addition, since it is lightweight and does not have corners, it does not crack or break even if it hits in the sea or falls on land.

The mesh unit 14 has a body formed of two ring-shaped members 16 and 16 so that the mesh unit 14 can be closely attached to the outer surface of the aquaculture container main body 2. These two ring-shaped members 16 are
It is set to be approximately equal to the outer diameter of the aquaculture container body 2, that is, the diameter immediately below the collar portion 2 b. The lower ring-shaped member 16 is tightly locked below the flange 2b of the container body 2.

  The rope-like string body 12 is formed with a relatively large diameter in order to support the entire load. The rope-shaped string 12 is connected to the two ring-shaped members 16 and 16 and arranged in the vertical direction. Thus, when the upper end 12a of the string body 12 is held and lifted, the space between the ring-shaped members 16 and 16 of the mesh body 6 is stretched in the vertical direction by the entire load.

  The thin string 8 is formed with a relatively small diameter because no load acts thereon, and is used by closing or opening the operation opening 4 of the mesh 6 in a purse-like shape. In addition, since there are many uses in the sea, it is preferable that the thin string 8 is also made of resin.

In the ring-shaped member 16, the core material is preferably formed of a metal having high corrosion resistance such as stainless steel, and further, vinyl or the like is preferably coated on the outer periphery of the core material.
Each ring-shaped member 16 is attached so as to sew around the mesh body 6 in a state where both ends are not connected, and then both ends are connected by appropriate joint members.

  In the present embodiment, the aquaculture container body 2 and the net unit 14 as described above are prepared, and in actual use, as shown in FIG. Then, a large number of juveniles are buried in the aquaculture container main body 2 together with a predetermined amount of sand, and are put into the sea. An appropriate weight 18 is attached to the rope-like string body 12 at the lower end of the lowermost culture device 10. In addition, the string body 12 of the top culture device 10 is tied to an ikesu or a float.

  In this embodiment, the number of juvenile shells that are initially introduced into the sea may be accommodated in a relatively large amount in one container body 2, but the density of the individual increases as the shells grow, When the period elapses, it is preferable to once pull it out from seawater and transfer it to another container body in order to reduce the number of solids in one container body 2.

  When such an allocation is performed to disperse individuals, it is preferable to change the mesh size of the mesh body 6 of the newly used mesh body unit 14 to a size several times larger. If the size of the mesh is changed in this way, the flow of water can be sufficiently distributed in the container body 2 and seaweeds that can serve as shellfish can be actively introduced into the container body 2. It also promotes the discharge of leftovers and feces.

The shellfish cultivated by such a culture apparatus 10 is not particularly limited, and various shellfish, particularly bivalve shells, can be suitably cultivated.
As mentioned above, although one Example of this invention was described, this invention is not limited to the said Example at all. For example, you may provide a small opening in the curved wall body of the aquaculture container main body 2. FIG. Furthermore, in order to adjust the overall height of the foamed synthetic resin-made culture container body 2, a separate foamed synthetic resin ring shape is prepared, and an uneven fitting is provided on the upper part of the ring member container body 2. May be detachably assembled.

FIG. 1 is an exploded perspective view of a shell culture apparatus according to an embodiment of the present invention. FIG. 2 is a perspective view of the aquaculture apparatus incorporating the components of the aquaculture apparatus of FIG. FIG. 3 is a side view showing a usage situation of the aquaculture device according to one embodiment of the present invention.

Explanation of symbols

2 aquaculture container body 2a opening 2b collar 4 operation opening 6 mesh 8 thin string 10 culture device 12 rope string 14 mesh unit 16 ring member 18 weight

Claims (1)

An aquaculture container body made of a substantially arm-shaped foamed synthetic resin, which is placed in water in a state where juvenile shellfish and sand are accommodated, and an opening is formed in the upper part,
A cylindrical net that is arranged so as to surround the periphery of the opening of the aquaculture container body, the opening for operation is formed in the upper part, and the upper part and the lower part are opened ;
A thin string for opening and closing the opening for operation formed in the mesh body;
A rope-like string that connects the aquaculture container main body in the vertical direction, and
The bottom surface side of the aquaculture container body is formed in a bottom bud, and when a plurality of the container bodies are stacked vertically, the lower part of the upper culture container body is accommodated in the opening of the lower culture container body. Are stacked in multiple stages,
Two or more types of nets having different mesh sizes are prepared, and these are used properly according to the growth of juvenile shellfish, and each net is approximately equal to the outer diameter of the aquaculture container body. It is attached to the outside of the aquaculture container main body in a posture that is held by two ring-shaped members having a diameter and expanded in a cylindrical shape,
A collar is formed on the outer surface of the opening of the aquaculture container body, and one of the ring-shaped members is locked on the lower surface of the collar to be immovable.
A flow-stopping weight is detachably attached to the lower end of the rope-like string suspended from the aquaculture container body,
A shell culture apparatus characterized in that when the upper end of the rope-like string is held and lifted, the space between the two ring-shaped members of the mesh-like body is stretched in the vertical direction.

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