JPH06105631A - Artificial fish bank - Google Patents

Abstract

PURPOSE:To obtain an artificial fish bank suitable for the growth of fish and shellfish and free from the problems of marine pollution, red tide and ISOYAKE (seaweeds withering phenomenon on beach) by placing a float and a perforated pipe in a frame provided with detachable culture plates and supplying the seawater of the upper layer and air to the perforated pipe. CONSTITUTION:Culture plates 3 are detachably attached to a rigid frame 1. A float 2 and a perforated pipe 4 are placed in the frame to enable the supply and discharge of water. The perforated pipe is supplied with the seawater of the upper layer and air to apply air and the seawater near the surface of the sea to fish and shellfish.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an artificial fish reef capable of growing aquaculture under a favorable growth environment by releasing upper seawater and air in the seabed.

[0002]

2. Description of the Related Art With the recent overfishing of seafood and deterioration of the growth environment, the growth of seafood by artificial reefs has been promoted.
So far, artificial fish reefs are made of concrete, steel,
Using various materials such as resin, it is formed into a three-dimensional structure suitable for growing seafood. Then, these artificial fish reefs are thrown into the seabed and moored by anchors if there is a risk of movement due to ocean currents.

[0003]

Problems to be Solved by the Invention The above-mentioned conventional artificial fish reef has the following problems. <B> The artificial reefs that have been used up to now are not left for the purpose of recovery or cleaning, and are left on the sea floor. As a result, unnecessary substances are attached to the artificial fish reef, which deteriorates the growth environment of seafood. <B> Moreover, artificial fish reefs made of concrete tend to collapse after a long period of time, which causes marine pollution. <C> In recent years, problems such as red tides caused by imbalanced ecological circulation and rock burning exposed by algae and kelp in rocky areas are becoming more serious. However, up to now, there is no effective deciding factor for red tide and rock burning, and there is an urgent need to propose a countermeasure for it.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and an object thereof is to provide the following artificial fish reef. <B> An artificial reef that can improve the growth environment of seafood. <B> An artificial fish reef with no concern about marine pollution over a long period of time. <C> An artificial fish reef that can prevent the occurrence of red tides and beach burns.

[0005]

DISCLOSURE OF THE INVENTION The present invention provides a rigid frame equipped with a removable culture plate, a hollow floating body capable of supplying and draining water in the frame, and a perforated pipe mounted below the culture plate. The artificial fish reef is characterized in that the perforated pipe is provided so as to supply upper seawater and air.

[0006]

The present invention will be described below with reference to the drawings.

<A> Artificial Fish Reef FIG. 1 is a perspective view of an artificial fish reef according to the present invention. The artificial fish reef has a three-dimensional frame 1, a floating body 2 having a hermetically sealed structure integrally incorporated in the frame 1, a plurality of aquaculture plates 3 that are removably arranged in parallel on the upper part of the frame 1, and is arranged below the aquaculture plate 3. It is composed of the perforated pipe 4 formed.

<B> Frame The frame 1 is composed of a rigid structure made of steel or the like, and its shape and dimensions are appropriately selected according to the aquaculture for the purpose of growth.

<C> Floating Body The floating body 2 is a hollow box which controls the sinking of the artificial fish reef, and is contained in the center of the frame 1 in a state where it does not separate. Each end of a water supply hose and an air supply hose (not shown) is connected to the floating body 2, and the submersion of the artificial fish reef is operated by injecting water into the floating body 2 via the water supply / drainage hose, and into the floating body 2 via the air supply hose. The floating of the artificial reef is operated by using both the supply of compressed air and the drainage in the floating body 2 through the water supply / drainage hose. The end of each hose is connected to a floating body and placed on the water, and connected to equipment such as a water pump or compressor when necessary.

<D> Culture Plate The culture plate 3 is a detachable culture substrate for cleaning purposes. The shape, structure, material, etc. of the aquaculture plate 3 are appropriately selected according to the aquaculture product, and in addition to the examples, a three-dimensional shape having irregularities on the surface may be used. The aquaculture plate 3 is placed at the uppermost position of the frame 1 as shown in an enlarged manner in FIG. It is sandwiched between. As a holding means for the push plate 12, for example, pin holes 13 are formed at both ends of the push plate 12, and L-shaped receiving plates 15 with pin holes 14 are provided on both sides of the frame 1 so that both pin holes 13,
A structure in which the pin 16 is attached to and detached from the inside of 14 can be adopted. Incidentally, reference numeral 17 in the drawing denotes a protrusion 17 for keeping the arrangement interval of the culture plates 3 constant. In addition, a handle 31 is attached to the end of the culture plate 3.
By attaching, the attaching / detaching operation of the aquaculture plate 3 can be easily performed.

<E> Perforated Tube As shown in FIG. 2, the perforated tube 4 has a large number of holes formed on its peripheral surface and is attached to both sides of the floating body 2 below the culture plate 3. The perforated pipe 4 takes in seawater near the sea surface and atmospheric air and discharges it from below the aquaculture plate 3 near the sea floor. Especially, the seawater near the upper layer is sent to the deep sea to improve the water quality by circulating seawater. It is the body. As a means for supplying air and seawater near the upper layer to the perforated pipe 4, a supply pump 5 having a wave force as a drive source as shown in FIG. 2 can be adopted. The supply pump 5 is accommodated in a body 51 of a buoyancy structure in a state in which a float 52 can float and sink, and the cylinder 5 is provided above and below the body 51.
3, 54 are defined, the pistons 55, 56 are housed in the cylinders 53, 54, the upper and lower sides of the float 52 and the pintons 55, 56 are connected by a rigid member, and the cylinders 53, 54 are reversed. A stop valve is attached, and vertical movement of the float 52, which floats and sinks due to wave force, is converted into vertical movement of a pair of pistons 55, 56, so that each cylinder 53, 54
It is a structure that takes in upper seawater and air inside. The taken upper seawater and air are supplied to the perforated pipe 4 via the supply hose 6. As another means for supplying the upper layer seawater and air to the perforated pipe 4, a known submersible pump or compressor may be used in combination. In this case, it is desirable to adopt wind power generation or a solar system as the power.

[0012]

[Operation] Next, a method of using the artificial fish reef will be described.

<A> Installation As shown in FIG. 2, water is poured into the floating body 2 to allow the artificial fish reef to settle on a predetermined seabed. If the artificial reef is expected to fall or move, moor it with anchors.

<B> Start of Supply of Air and Upper Seawater Next, the supply pump 5 suspended on the sea is operated to discharge seawater and air near the upper layer from the group of holes of the perforated pipe 3. As a result, the seafood that inhabits the aquaculture plate 3 will always be exposed to air and seawater near the sea surface, and will be grown under a favorable growth environment.

<C> Floating of artificial fish reef When cleaning the aquaculture plate 3 or removing the artificial fish reef, compressed air is sent to the floating body 2 and the water in the floating body 2 is drained. This causes the artificial fish reef to surface. When the artificial fish reef floats above the sea, unnecessary substances attached to the aquaculture plate 3 are removed, or the entire artificial fish reef is towed and removed.
In addition, when the unwanted matter is heavily adhered, the aquaculture plate 3 may be replaced with a new one.

[0016]

Since the present invention is as described above, the following effects can be obtained.

<B> Since the artificial reef can be floated and lowered, cleaning and movement of the artificial reef can be easily performed.

<B> Upward and downward ocean current circulation is possible, which is useful not only for preparing the environment for growing seafood but also for improving the water quality in the surrounding sea area.

<C> Since the aquaculture plate is constructed as a detachable type, unnecessary substances can be easily removed as appropriate, and the environment for growing seafood can be improved.

[Brief description of drawings]

[Figure 1] Overall view of artificial fish reef

[Fig. 2] An explanatory diagram of a usage state

FIG. 3 is an explanatory diagram of a mounting example of a culture plate.

Claims (1)

[Claims] 1. A rigid frame equipped with a detachable aquaculture plate, a hollow floating body capable of water supply / drainage disposed in the frame, and a perforated pipe attached below the aquaculture plate. An artificial fish reef characterized by being piped to supply upper seawater and air.