JP3008689U - Owl breeding equipment on the sea surface - Google Patents

Abstract

(57) [Summary] [Purpose] When breeding bandits on the surface of the sea, when the bandits contact the breeding boundary, the damage is minimized and the flow always occurs in a certain direction within the breeding boundary. Then, oxygen is supplied to the breeding boundaries, and the plant is allowed to safely survive and breed for a certain period in an economically inexpensive sea breeding facility. [Constitution] A float 31 is attached to a frame member 30 around a tubular peripheral wall 2 which surrounds the rearing region with a flexible sheet 20 without forming acute-angled corners to form a gentle curved peripheral surface. A frame body 3 is supported, a net body 4 is stretched at the bottom opening of the tubular peripheral wall 2, and seawater outside the breeding area is fed into the tubular peripheral wall by a water flow generator 5 to create a water flow in a certain direction.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a breeding device suitable for the body shape and behavior of breeding crows when breeding crows as sea surface culture.

[0002]

[Prior art]

 With the increase in live fish distribution in recent years, the number of cases of installing storage tanks on land or net cages on the sea surface is increasing in production areas for the purpose of adjusting shipments and improving quality. Among the live fish that are distributed, fish that are relatively tough and easy to handle, such as red sea bream, flounder, and rockfish, can be stockpiled mainly in net cages installed in calm waters such as in fishing ports. It is extremely inexpensive and easy to install. On the other hand, the squid genus such as the squid squid and spear squid have abundant water and always flow in one direction, and require strict breeding conditions such as sufficient oxygen supply and rapid removal of waste products. It has been known. For example, as shown in Fig. 6, when breeding squid at a land facility, aquarium a should be circular or oval, and some kind of pattern b should be drawn on the aquarium wall so that the squid can recognize the existence of the wall. It is common to circulate the water flow c of the fish, and under these conditions, the crow band is physiologically stable by swimming toward the water flow in a certain direction (against the water flow) while recognizing the aquarium wall. It was supposed to be possible.

[0003]

[Problems to be solved by the device]

 As described above, a finely managed facility is required for breeding crows on land, but there is a problem that the facility cost is higher than that for the fish mentioned above. Therefore, it may be possible to raise the animals on the surface of the sea.However, if you try to house the bandits in the conventional square net cage, the behavior conditions above cannot be met and the body of the bandits gets stuck in the net. More susceptible to injury. It is also known that crows consume more oxygen than other fish. Therefore, in the net cage, if the exchange of seawater inside and outside the cage decreases when the sea is calm, it is inevitable that the squid becomes deficient in oxygen. Under such circumstances, the net cage itself is required to have a shape function suitable for the behavior pattern of crows.

In view of the above-mentioned circumstances, the present invention minimizes damage caused when the crows come into contact with the breeding boundaries when breeding the crows on the surface of the sea, and the flow always occurs in a certain direction within the breeding boundaries. The objective is to ensure that oxygen is supplied to the breeding boundaries, and to keep and breed it safely for a certain period in economically inexpensive sea surface breeding facilities.

[0005]

[Means for Solving the Problems]

 The present invention has been made in consideration of the above problems, and a cylindrical peripheral wall formed by surrounding the rearing area with a soft sheet to form a gentle curved surface without forming sharp corners, and A frame body in which a float is attached to a frame member connected to the upper end of the cylindrical peripheral wall, a net body stretched over the bottom opening of the cylindrical peripheral wall, and seawater outside the breeding area is fed into the cylindrical peripheral wall. The above problem is solved by providing a crow band breeding device on the sea surface, which is characterized by being provided with a water flow generation device for generating a water flow that circulates in the sea.

[0006]

[Action]

 In the present invention, since the tubular peripheral wall surrounding the breeding area is a flexible sheet, damage to the bandits is reduced even if the bandits come into contact with or collide with each other. Then, by sending seawater into the breeding area by the water flow generator to generate a water flow, the physiology of the squid that swims against the flow is stabilized, and oxygen is supplied to the breeding area, and waste products are generated. The sediment will be discharged through the mesh on the bottom side.

[0007]

【Example】

 Next, the present invention will be described in detail based on the embodiment shown in FIGS. In the figure, reference numeral 1 denotes a crow band breeding apparatus installed on the surface of the sea. It comprises a net body 4 stretched over the bottom opening of the peripheral wall 2 and a water flow generator 5 for supplying oxygen to generate a water flow. The cylindrical peripheral wall 2 is formed by enclosing the breeding area A of a squid with a flexible synthetic resin sheet 20 in a circular shape or an elliptical shape. The synthetic resin sheet 20 has a smooth surface and is soft enough to minimize damage to the bandits even if they come into contact with or collide with. The inner surface may be colored or various patterns may be applied so that the presence of the bandits can be recognized when they are in close proximity.

As shown in the figure, the frame body 3 has a frame member 30 made of metal, which is annularly connected to each other and has an inner and outer double structure, as a skeleton. The upper end of the peripheral wall 2 is connected, and a plurality of floats 31 are arranged and fixed between the inner frame member 30 and the outer frame member 30 at appropriate intervals in the circumferential direction. . Thus, the frame 3 has the float 31 and supports the cylindrical peripheral wall 2 while floating above the sea surface, and maintains the shape of the upper opening of the cylindrical peripheral wall 2. The net body 4 stretched over the bottom opening of the tubular peripheral wall 2 prevents the breeding bandits from escaping, and also enables the exchange of seawater inside and outside the breeding area, as described later, through waste products discharged by the bandits. It is designed to be dropped outside the breeding equipment.

The water flow generator 5 has a role of supplying oxygen to the breeding area A and a role of generating a water stream in the breeding area A, and as shown in FIG. 1, a blower installed on the land side. Air is sent from an air supply device (oxygen supply device) 50 such as a compressor or a compressor into an inside of a pipe 52 attached to the cylindrical peripheral wall 2 via an air hose 51. The pipe 52 is erected vertically from the sea on the outside of the tubular peripheral wall 2, bends at the upper end side, passes through the upper part of the tubular peripheral wall 2, and extends in the circumferential direction inside the upper opening of the tubular peripheral wall 2. The outlet 53 is located in the direction of the outlet, and as shown in FIG. 2, air is delivered from the air hose 51 inserted into the pipe 52, whereby the water level in the pipe 52 rises, and the tubular peripheral wall 2 The seawater outside the breeding area will be sent into the breeding area A (air lift method). In this way, the air sent from the air hose 51 and the oxygen dissolved in the seawater outside the breeding area are supplied to the breeding area A. Further, the air supply device 50 does not need to be installed on the land side, but may be installed on the upper part of the cylindrical peripheral wall 2 as shown in FIG. As described above, in the water flow generating device 5, since the outlet 53 is directed in the circumferential direction, the seawater sent in moves in the circumferential direction of the tubular peripheral wall 2, thereby raising the breeding area. A stream of water B that moves in a certain direction is obtained in A, stabilizes the physiology of the squid, which is a property that swims toward the stream, and sends air and seawater outside the breeding area A by means of an air supply device at all times. Oxygen is supplied to the breeding area A. Then, since the outside seawater is sent in, the seawater in the breeding area A comes to flow out downward from the net body 4, and the waste products etc. from the crows are washed out through the net body 4 to the outside of the breeding area A. Will be

The water flow generator 5 for supplying oxygen to generate a water flow uses the air lift method in the above embodiment, but the structure of the water flow generator is not limited to this. . For example, as shown in FIG. 3, a submersible pump 54 is connected to the lower end of the pipe 52, and the submersible pump 54 is operated to send seawater outside the breeding area into the breeding area A to supply oxygen, Further, as shown in FIG. 4, the discharge port 56 of the circulation pump 55 installed on the land is located in the upper opening of the cylindrical peripheral wall 2, and the suction port 57 is located in the sea outside the breeding area. A circulation pump 55 can be used to feed seawater outside the breeding area into the breeding area A to supply oxygen. The outlet 53 and the outlet 56 of the water flow generator 5 shown in FIGS. 3 and 4 are set so that a water flow is generated in the cylindrical peripheral wall as described above.

FIG. 5 shows another embodiment. In this embodiment, the frame material 3 has a rectangular shape, and the pipes 52 are put into the breeding area A from the diagonal portions of the frame body 3, and the respective outlets 53 are arranged in the circumferential direction of the tubular peripheral wall 2. The water flow B is directed in the same direction and moves in a fixed direction. In this embodiment, the frame body 3 has a rectangular shape, but the cylindrical peripheral wall 2 supported by the frame body 3 is connected to the frame body 3 so as to form a gentle curved surface at a corner portion thereof, and an acute angle is formed. No corners are formed in the breeding area A. The shape of the cylindrical peripheral wall 2 at the corners, that is, the shape of the synthetic resin sheet 20 can be easily maintained by providing an arc-shaped frame member 32 as shown in the drawing and attaching the frame member 32 thereto. As described above, as shown in the above-described two examples, the cylindrical peripheral wall 2 can have a circular shape, a prismatic shape with rounded corners, or the like, and the breeding area A can be formed without forming sharp corners. The shape is not limited as long as it surrounds the peripheral surface with a gentle curved surface and does not hinder the generation of the water flow B in the breeding area A 1 by the water flow generation device. Although only the pipe 52 is shown in FIG. 5 with respect to the water flow generator, the various water flow generators described above can be used.

[0012]

[Effect of device]

 As described above, the apparatus for breeding crows on the sea surface of the present invention has a tubular peripheral wall that surrounds the breeding area with a soft sheet to form a gentle curved surface without forming sharp corners. A frame body in which a float is attached to a frame member to which the upper end of the cylindrical peripheral wall is connected; a net body stretched over the bottom opening of the cylindrical peripheral wall; and a frame outside the breeding area inside the cylindrical peripheral wall. It is characterized by being equipped with a water flow generator for generating a circulating water flow by sending in seawater.

As a result, a stream of water that moves smoothly in a certain direction can be obtained without causing a stagnation part in the breeding area on the sea surface, and the physiology of breeding crows can be stabilized, and at the same time with respect to the tubular peripheral wall. Even if the bandits come into contact with each other, it is made of a flexible sheet, so damage to the bandits can be reduced. In addition, since seawater is constantly supplied from outside the breeding area, sufficient oxygen supplementation is performed, and at the same time, seawater flows from the bottom side net outside the breeding area and wastes produced by bandits are raised. It will be possible to send it out and maintain a good breeding environment for the bandits. The structure of the device as a whole is simple, it can be installed at low cost, and it is easy to manage.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a crow band breeding apparatus on the sea surface according to the present invention.

FIG. 2 is an explanatory diagram showing the inflow of seawater in the water flow generation device according to the embodiment.

FIG. 3 is an explanatory view showing another example of the water flow generator.

FIG. 4 is an explanatory view showing another example of the water flow generator.

FIG. 5 is an explanatory view showing another embodiment in which the shapes of the cylindrical peripheral wall and the frame of the crow band breeding apparatus are changed.

FIG. 6 is an explanatory view showing a conventional crow band breeding apparatus.

[Explanation of symbols]

 1 ... crowd breeding apparatus 2 ... cylindrical peripheral wall 3 ... frame body 4 ... mesh body 5 ... water flow generator A ... crowd breeding area B ... water flow

Claims (1)

[Scope of utility model registration request] 1. A tubular peripheral wall surrounding a rearing area with a soft sheet to form a gentle curved surface without forming acute-angled corners, and an upper end of the tubular peripheral wall is connected. A frame body in which a float is attached to a frame material, a net body stretched over the bottom opening of the tubular peripheral wall, and a water flow generation device for creating a circulating water flow by feeding seawater outside the breeding region into the cylindrical peripheral wall An apparatus for breeding crows on the surface of the sea, comprising: