JP3043999U - Flocked artificial reef with hidden space and block used for it - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide a flock-type artificial reef that has a hidden space that can promote the growth of algae on the surface and can rest the survival instinct of seafood. SOLUTION: A leaf base placed on the seabed, a block body placed on the leaf base and having a hidden space suitable for inhabiting seafood, and a surface of the block body and / or the leaf base. A means of including and fixing the fixed flocked plate was adopted. [Effect] It is possible to obtain an optimum environment having an ideal seaweed bed and a hideout for the fish and shellfish to be captured, and to increase the yield of the fish and shellfish.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention improves an artificial fish reef, and more specifically, has a hidden space that can promote the growth of algae on the surface and can rest the survival instinct of seafood, and is also highly stable. Artificial reef and blocks that can be constructed easily and quickly. In particular, the artificial reef of the present invention is an optimum environment for inhabiting shellfish such as turban shells and abalone, and aquatic animals such as sea urchins and spinach of sea cucumber.

[0002]

[Prior art]

 In shallow water where ridges such as reefs, banks, seamounts, and plateaus are formed in the sea, ocean currents collide with the ridges, causing upwelling and eddy currents and active vertical mixing of seawater. By this vertical mixing, a large amount of inorganic nutrients in the sea rises to the surface layer, promotes the reproduction of phytoplankton on the surface layer, attracts zooplankton and small fish that feed on it, and further Since shaped fish come and stay, the waters near such shallow waters are suitable fishing grounds.

However, since the shallow waters in the sea such as reefs and deposits as described above are formed over a long period of time due to the coincidence of crustal movements and submarine volcanoes, natural reefs, etc. There are not so many in coastal areas.

From the above, many artificial fish reefs artificially forming an environment similar to a natural reef have been proposed. This artificial fish reef is usually molded into the required shape using concrete blocks. Since the surface of the concrete block is tough and flat, even if algae in the sea inadvertently adheres to the surface of the block, the algae are often washed away by the ocean current, and the surface of the block of artificial fish reefs is washed away. Had a problem that it was difficult for the algae in the sea to grow. Even if marine algae settle on the surface of the artificial reef block, the surface of the block will be a seaweed bed where various algae randomly grow. It is not possible to intentionally grow only algae that grow on the surface of the block, and it is difficult to grow algae that feed on the specific seafood to be captured, and it is difficult to build an ideal fish reef. There was a problem that I could not do it.

In addition, in the artificial fish reef made of the concrete block, a space that serves as a hideout for seafood is provided inside, and a linear through hole that connects the internal space and the outside of the artificial fish reef is formed. There are many simple shapes. The internal space of such a simple artificial reef does not become a hideout that can rest the survival instinct of seafood, and natural enemies frequently enter and exit through the linear through holes drilled in the artificial reef. Since the environment is not suitable for breeding even offshore, it was not possible to increase the yield of seafood.

[0006]

[Problems to be solved by the device]

 The present invention has been made in view of the above-mentioned problems in conventional artificial fish reefs, and can promote the growth of algae on the surface and, in addition, can provide food for specific seafood. The purpose of the present invention is to provide a planted artificial reef that can create an ideal seaweed bed by intentionally growing the algae.

Another object of the present invention is to provide an artificial reef having a hidden space where the survival instinct of a specific seafood to be captured can be rested.

Further, the present invention is intended to provide an artificial reef having excellent stability and durability even in a shallow sea where the ocean current or waves are severe.

Furthermore, the present invention aims to provide a block capable of constructing an artificial reef as described above simply and quickly.

[0010]

[Means for Solving the Problems]

 The means adopted by the present inventors to solve the above technical problem will be described below with reference to the accompanying drawings.

That is, the present invention provides a reef base that is placed on the seabed; a block body that is placed on the reef base and that has a hidden space suitable for inhabiting seafood; Alternatively, it is characterized in that the above-mentioned problems are solved by adopting a means of including a flocked plate fixed to the surface of the leaf base.

Further, the present invention is a block body having a branch-like hidden space suitable for habitat of seafood on the back surface, and can be placed on a reef base fixed on the seabed to construct an artificial reef. The feature is that the above problems are solved by adopting the means of

[0013]

[Embodiment of the invention]

 Hereinafter, the present invention will be described in more detail based on embodiments shown in the accompanying drawings. 1 is an overall perspective view of an artificial reef which is an embodiment of the present invention, FIG. 2 is a plan view of a leaf base used for the artificial reef of this embodiment, and FIG. 3 is a perspective view of a block body used for the artificial reef of this embodiment. Fig. 4, Fig. 4 is a bottom view of the block body viewed from the X direction of Fig. 3, Fig. 5 is a side view of the block body viewed from the Y direction of Fig. 3, and Fig. 6 is a block body viewed from the Z direction of Fig. 3. FIG. 7 is a perspective view of a flocked plate used for the artificial reef of this embodiment, FIG. 8 is an explanatory view showing a process of preliminarily growing algae on the flocked plate used for the artificial reef of this embodiment, and FIG. FIG. 3 is a perspective view showing the algae epiphytic state and shellfish habitation state in a morphological artificial reef.

First, the overall structure of an artificial reef according to an embodiment of the present invention will be described with reference to FIG. In the figure, what is indicated by reference numeral 1 is a reef base that is placed on the bottom of the shallow water in the coastal area. The leaf base 1 is formed of a concrete block into a substantially plate shape, and its size is 3400 mm in length × 3400 mm in width × 250 mm in height. What is indicated by reference numeral 2 is a block body placed on the leaf base 1. This block body 2 is formed into a substantially rectangular parallelepiped by a concrete block, and its size is 500 mm in length × 2500 mm in width × 250 mm in height. What is indicated by reference numeral 3 is a flocking plate fixed to the surface of the leaf base 1 and / or the block body 2. The flocked plate 3 is made of a rectangular parallelepiped concrete base with synthetic fiber bristles fixed on the upper surface thereof via a synthetic resin layer. The size of this flocking plate 3 is 300 mm in length × 300 mm in width × 10 mm in height. In the artificial reef of the present embodiment constructed by these members 1, 2 and 3, aquatic animals such as turban shell and abalone shell F are targeted for capture. Although concrete materials are used as the materials of the members 1, 2, and 3, steel materials, stone materials, wood materials, slate materials, FRP materials, synthetic resin materials, and the like, and mixed materials thereof are also adopted. Good.

Next, detailed structures of the leaf base 1, the block body 2, and the flocked plate 3 described above will be described with reference to FIGS. 2 to 7.

As shown in FIG. 2, in the vicinity of the central portion of the leaf base 1, six vertically elongated through holes 11, 11, ... A plurality of block bodies 2, 2, ... Are placed around these through-holes 11, 11, ... To surround the four sides to form an internal space (see FIG. 1). ), In the sea, sand and mud accumulated in the internal space are discharged from the through holes 11, 11, ..., Therefore, even if the artificial reef is used for a long period of time, Accumulation can be effectively prevented. Further, on the upper surface of the leaf base 1, four inverted U-shaped hanging devices 12, 12, ... Are fixed symmetrically. The artificial reef can be sunk on the seabed by hooking the hooks of the lifting crane etc. on these lifting gears 12, 12, ...

In FIG. 3, a perspective view of one block body 2 is shown. A bottom view of the block body 2 as seen from the back side (X direction in FIG. 3) is shown in FIG. 4, and a side view of the block body 2 as seen from one side surface (Y direction in FIG. 3) is shown in FIG. FIG. 6 is a side view of the block body 2 viewed from the other side surface (Z direction in FIG. 3). On each side surface of the block body 2, as shown in FIG. 4, three openings 21a, 21a, 21a, four openings 21b, 21b, 21b, 21b, one opening 21c, Each opening 21d is opened, and these openings are in communication with each other. Of the openings, the openings 21a, 21a, 21a located outside in the completed state of the artificial reef are largely opened, and the size is 320 mm in width × 150 mm in height. With such a large opening, it is possible to catch the shellfish F in the block body 2 by sticking a hand through the opening 21a.

The openings 22a located outside the artificial reef among the openings are leg portions 22a, 22a, ... And the openings 21b located inside are located between the openings 21a. The legs 22b, 22b ... The outer leg portions 22a, 22a, ... And the inner leg portions 22b, 22b, ... Are staggered as shown in FIG. That is, since the ocean current flowing from the opening 21a located outside the artificial reef collides with the inner wall of the leg 22b on the opposite side, the impact of the ocean current is weakened by the collision even in a shallow sea where the flow is intense. As a result, the current becomes gentle, and the gentle ocean current branches off at the inner wall of the leg 22b and flows out from each opening 21b into the internal space of the artificial reef.

Further, since the legs are alternately arranged in this way, a branched hidden space S is formed on the back surface of the block body 2, and the hidden space S is formed in the turban shell of the present embodiment. It becomes a great hideaway for shellfish F such as abalone to rest their survival instinct. Especially, there is a tendency that turban shells and abalone are favorably settled on the ceiling 23 above the hidden space S. In the block body 2 of this embodiment, the block body 2 extends in the longitudinal direction (the opening 21c and the opening 21d. It is designed so that the area of the ceiling space 23 is as wide as possible by forming an opening in the direction of communicating with each other.

Further, a reinforcing bar is arranged inside the block body 2 to increase the structural strength of the block body 2 to increase the durability. As a result, in order to secure the cover space S, which is a habitat for the shellfish F, as wide as possible, the block body 2 in which the parts other than the legs are thinly formed is used, or the block body 2 receives a severe collision of the ocean current. Even if it does, the block body 2 can endure sufficiently.

As shown in FIG. 1, the block body 2 thus formed is placed in a stacked state at four corners of the upper surface of the leaf base 1 to form an artificial reef having an internal space. In this case, the stacking number of block bodies 2 is set by calculating the necessary weight of the artificial reef according to the conditions of the sea area where the artificial reef should be laid down and the depth of the installation water. An artificial reef with excellent stability can be obtained even in a shallow sea.

As shown in FIG. 7, the flocked plate 3 is configured by forming a synthetic resin layer 32 on the upper surface of a concrete flocked base 31 formed into a substantially rectangular parallelepiped, and the upper surface of the synthetic resin layer 32. The fibrous hairs 33, 33, ... are flocked by hand flocking method, mechanical flocking method, electric flocking method, formation flocking method or the like. The fibrous hairs 33, 33, ... consist of high-strength natural fibers and / or synthetic fibers, and as the natural fibers, palm fibers, root fibers, hemp, cotton and other plant fibers, animal body hair, Animal fibers such as tail hair, whiskers, and silk thread can be mentioned, and synthetic fibers include filamentous materials, thread-shaped materials, and slit-shaped materials formed from polyester-based, polyamide-based, polyolefin-based materials, and the like. The fiber bristles 33 are used by appropriately selecting the bending resistance, the type of the fiber bristles, the length of the fiber bristles, the flocking density, etc., depending on the type of target seafood or algae. Further, a mounting hole 34 is formed at a substantially central portion of the flocked plate 3, and a bolt or the like is inserted into the mounting hole 34 to fix the flocked plate 3 to the surface of the leaf base 1 or the block body 2. . In this case, it is preferable that the flocked plates 3 be fixed to the upper surface of the leaf base 1 or the block body 2 and the flocked plates 3 be arranged so that the sunlight is well applied thereto.

Further, as shown in FIG. 8, before fixing the flocked plate 3 to the surface of the leaf base 1 or the block body 2, the desired bristles 33, 33, ... The alga M can also be grown in advance. As a method for growing the alga M, first, put a plurality of the hair transplant plates 3 ... in a water tank, and then put the alga M therein, and the spores Ms.Ms. .. are released and adhere to the fiber hairs 33, 33, ... of each flocking plate 3. Then, after a few days, the spores Ms, Ms ... On each flocking plate 3 germinate and the alga M grows and grows like a moss. As the alga M of the present embodiment, black sea bream and akamoku that serve as a bait for shellfish F such as turban shell and abalone are adopted.

When an artificial reef constructed by fixing the above-mentioned flocked plates 3, 3, ... On which the alga M has been grown to the surface of the leaf base 1 or the block body 2 is submerged on the seabed, it is shown in FIG. As described above, the alga M that has been grown in advance grows further, and the alga M that is a favorite food of the specific seafood (in the present embodiment, shellfish F such as turban shell and abalone) that the artificial reef wants to capture is the artificial reef. Because it grows on the surface of, the ideal seaweed bed can be created. Moreover, since the block body 2, 2, ..., Which constitutes the artificial reef, has a hidden space S which is a great hideout for the shellfish F to rest its survival instinct, the shellfish is placed in the hidden space S. F can live without fear of foreign enemies. Therefore, in the artificial reef of the present embodiment, an optimal environment with ideal bait (algae M) and hideout (covert space S) for turban shell and abalone is provided.

The embodiments of the present invention are generally as described above, but the present invention is by no means limited to the above-mentioned embodiments, and various modifications are made within the scope of the “claim for utility model registration”. For example, in the block body 2 of the present embodiment, the hidden space S having a shape suitable for the habitation of shellfish F such as turban shell and abalone is formed, but the habitat of other seafood is also It is needless to say that the hidden space S having various shapes suitable for the above can be formed in the block body 2, and such a modified mode also belongs to the technical scope of the present invention.

[0026]

[Effect of the invention]

 As described above with reference to the embodiments, in the artificial reef of the present invention, since the flocked plate on which the fiber hair is planted is fixed on the surface of the artificial reef, the algae floating in the sea is planted on the plate. Algae that can be effectively attached to the sea urchins can promote the growth of algae, and only the algae that feed the specific seafood to be captured are pre-grown on the hair transplant plate and then the hair transplant plate is fixed to the artificial reef. In this case, it becomes possible to intentionally grow a large amount of algae, which feed on specific seafood, to create an ideal seaweed bed for artificial reefs.

In addition, since the block body that constitutes the artificial reef of the present invention has a hidden space that is a great hideaway for the particular fish and shellfish to be trapped, the hidden space is formed in the hidden space. Certain seafood can live without fear of foreign enemies. Therefore, an ideal hideout for the fish and shellfish to be captured and an optimal environment with the above seaweed beds (baits) are provided, and the yield of the seafood can be increased. In addition, the blocks are piled up on the artificial reef base for the required number of steps according to the conditions of the installed sea area and the water depth, etc., and the reinforcing bars are installed inside the blocks, so in shallow water with heavy ocean currents and waves. Even if there is, an artificial reef with excellent stability and durability can be obtained.

Further, according to the artificial reef block of the present invention, the artificial reef having the above-mentioned effects can be easily and simply provided by stacking and fixing it on the reef base fixed on the seabed. Can be built quickly. Therefore, its practical value in the field of artificial reefs is enormous.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of an artificial reef that is an embodiment of the present invention.

FIG. 2 is a plan view of a leaf base used in the artificial reef of this embodiment.

FIG. 3 is a perspective view of a block body used in the artificial reef of the present embodiment.

FIG. 4 is a bottom view of the block body seen from the X direction in FIG.

5 is a side view of the block body seen from the Y direction in FIG. 3. FIG.

6 is a side view of the block body as seen from the Z direction in FIG.

FIG. 7 is a perspective view of a hair transplant plate used for the artificial reef of the present embodiment.

FIG. 8 is an explanatory view showing a process of preliminarily growing algae on the flocked plate used for the artificial reef of the present embodiment.

FIG. 9 is a perspective view showing an algae epidemic state and a shellfish habitation state in the artificial reef of the present embodiment.

[Explanation of symbols]

 1 Leaf Base 11 Through Hole 12 Lifting Tool 2 Block 21a Opening 21b Opening 21c Opening 21d Opening 22d Opening 22a Leg 22b Leg 23 Ceiling 3 Flocking plate 31 Flocking base 32 Synthetic resin layer 33 Fiber bristles 34 Mounting hole F Shellfish (Turban shell, Abalone, etc.) M Algae Ms Spores S Hidden space

Claims (4)

[Utility model registration claims] 1. A reef base that is placed on the seabed; a block body that is placed on the reef base and that has a hidden space suitable for inhabiting seafood; and a surface of this block body and / or leaf base. A flocked artificial reef having a hidden space, which is configured to include a flocked plate fixed to the. 2. A reef base that is placed on the seabed; a block body that is placed on this reef base and that has a hidden space suitable for the habitation of seafood; and the surface of this block body and / or leaf base. Fixed to, and
A flocked artificial reef having a hidden space, characterized in that it is configured to include a flocked plate on which desired algae have been preliminarily grown. 3. A block body having a branch-shaped hidden space suitable for habitat for fish and shells on the back surface, which can be placed on a reef base fixed on the seabed to form an artificial reef. The artificial reef block. 4. A block body having a branched hidden space suitable for habitat of fish and shells on the back surface, and the artificial reef can be constructed by stacking it on a reef base fixed on the seabed. An artificial reef block characterized by being present.