JP2687757B2 - Bottom fish breeding facility - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a facility for growing benthic fish, and more particularly to a facility for growing acoustically adapted bottom fish.

[0002]

2. Description of the Related Art Recently, as a means for growing fish, conditional reflexes relating to the sound of fish are used to cause the fish to memorize a specific sound, and acoustically collect the fish at a certain place to feed it and raise the fish. It has been noticed to do. Storing sounds in fish is called acoustic acclimatization, and a breeding facility that uses this has the advantage of being able to collect fish acoustically without having to surround the fish with cages.

By the way, such a facility for breeding fish by accustoming to sound has been put into practical use in the breeding of red sea bream, for example. However, when this is applied to bottom fish such as flounder, the following technical problems are encountered. was there.

[0004]

That is, in the above-mentioned sound acclimatization-raising facility, it is not necessary to enclose a cage or the like. However, sound acclimatization is generally effective in collecting the water in winter when the water temperature decreases. Decreases and is anxious when growing fish for a long time. In addition, since bottom-dwelling fish naturally inhabit the vicinity of the seabed, if the fish collected by acoustic fitting is sprinkled with bait from the surface layer and fed, it will be diffused by water currents, or It is difficult to feed the target fish efficiently by being eaten by the non-target fish that live in the area.

The present invention has been made in view of the above drawbacks, and an object of the present invention is to provide a breeding facility suitable for long-term breeding and capable of efficiently feeding bottom fish. It is in.

[0006]

In order to achieve the above-mentioned object, the present invention is an extension installation along a seabed.
The cleat block and chain are used to
Lock the outer edge of the lower opening of the
By attaching a funnel and holding the upper part underwater
In addition, it is provided with a net body stretched like a mosquito net in the sea, and a feeding device floated above the sea surface directly above the mosquito net.
The feeding device includes an acoustic device that extends downward and is installed in the sea to collect acoustically trained bottom fish, and a feeding hose that extends through the mosquito net. And

[0007]

[Operation] According to the benthic fish breeding facility configured as described above, the acoustically adapted benthic fish are extended along the seabed.
Seabed by concrete blocks and chains
Lock the outer edge of the lower frontage to the board and
Attaching an underwater float to keep the upper part underwater
Thus, since it is housed in a net body stretched in the shape of a mosquito net in the sea, it is prevented from escaping to the outside even if the collecting effect due to acoustic adaptation is reduced. Further, since the feeding device has the feeding hose which penetrates the net body and extends downward, the feeding can be directly fed to the bottom fish to be raised.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the accompanying drawings. 1 and 2 show an embodiment of a facility for growing bottom fish according to the present invention. The breeding facility shown in the figure is composed of a mosquito net-like net 10 serving as a cage and a feeding device 12. The net body 10 includes four L-shaped concrete blocks 14 at positions corresponding to corners.
Is installed on the seabed ground 16, the outer periphery of the lower opening of the net 10 is covered on the outside of each block 14, and the chain 18 is wound from above the outer periphery of the lower opening .
Concrete block extended along the seabed 16
It is locked and fixed to the seabed 16 by the hook 14 and the chain 18 .

A plurality of underwater floats 20 are attached to the upper portion of the net body 10. The net body 10 is stretched in a trapezoidal shape on the seabed 16 in a mosquito net shape to accommodate bottom fish. It defines the space. The feeding device 12 has a mosquito net shape.
It is installed above the sea surface directly above the net body 10. This feeding device 12 has a cylindrical main body portion 22, a solar cell 24 installed on the upper portion of the main body portion 22 and supplying electric power required for the feeding device 12, and a night sign 26 protruding from the solar cell 24. It has and.

A pair of floats 2 are provided on the lower surface of the main body 22.
8 is installed, and the lower end of each float 28 is connected to the upper end of a mooring chain 30 whose lower end is locked to the concrete block 14. Further, an intake pipe 32, a speaker 34, and a feeding hose 36 are projectingly provided on the lower surface of the main body portion 22. The feeding hose 36 penetrates through the net body 10 and its tip extends to the vicinity of the seabed ground 16.

In the breeding facility having the above-mentioned structure, the net body 10 is composed of a bottom fish such as a flounder, which is acoustically adapted.
It is housed and cultivated inside, but when feeding fish,
Sound with a predetermined frequency and sound pressure is emitted from the speaker 34, the bottom fish are collected by this sound, and the food contained in the main body 22 is supplied through the feeding hose 36.

[0012] Such feeding is automatically performed by a timer, the seawater is taken in from the intake pipe 32,
Seawater and bait are mixed and supplied to the feeding hose 36. In this case, it is desirable that the tip of the feeding hose 36 be in the shape of a trumpet-shaped flare so that the bait can be effectively dispersed. It should be noted that for a few minutes before and after feeding the bait, a sound may be automatically transmitted to the sea to acclimate the target fish.

According to the bottom fish breeding facility of the above construction, the acoustically adapted bottom fish has a net 10 having a lower end locked to the seabed 16 and an underwater float 20 provided above. Since it is housed inside, even if the gathering effect due to acclimatization is reduced, it is prevented from escaping to the outside. Moreover, since the feeding device 12 has the feeding hose 36 which penetrates the net body 10 and extends to the seabed, there is little diffusion of the bait due to the water flow, and the non-target fish are not preyed, and the bait is directly raised Can be given to the target bottom fish.

Further, the feeding device 12 includes the mooring chain 3
Since it is only locked to the concrete block 14 at 6, it can be detached and stored in another place during a typhoon or a non-use period.

[0015]

As described above in detail with reference to the embodiments, according to the benthic fish breeding facility of the present invention,
Preventing the escape of flatfish and other bottom fish that are to be raised
Sound feeding while efficiently feeding
The bottom fish can be effectively raised.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a benthic fish breeding facility according to the present invention.

FIG. 2 is a side view of the training facility.

[Explanation of symbols]

 10 Net 12 Feeder 14 Concrete Block 16 Seabed 20 Underwater Float 34 Microphone 36 Feeding Hose

Claims (1)

(57) [Claims] 1. A concrete extended along the seabed.
Below it on the seabed by the auto blocks and chains
The outer edge of the opening is locked and the underwater flow
Mount it and keep the upper part in the sea,
It has a net body stretched like a mosquito net and a feeding device that is floated above the sea surface directly above the mosquito net, and the feeding device is extended downward and installed in the sea. A facility for growing a benthic fish, comprising: an acoustic device for collecting acoustically trained benthic fish, and a feeding hose extending through and extending through the mosquito net.