JP2000350533A - Seaweed bed-growing type fishing bank - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the subject fishing bank that is stable to the waves in the wave-breaking zone, prevent the base mound for installation from being dug down by front face-washing flow by placing a plurality of concrete plates having small grooves cut thereon or the like detachably on the upper part of the fish-gathering bank, and permits easy growth of seaweeds, for example, sea tangles and creates rich sea area. SOLUTION: A plurality of concrete plates 4 having small grooves cut on their surfaces 4 or porous concrete plates 4 or simple concrete plates 4 are detachably mounted to the upper part of the fishing bank 10. Block plates formed by fusing and solidifying waste plastics or block plates having roughened surface formed by fusing and solidifying waste plastics or block plates having roughened surface formed by fusing and solidifying a combination of waste plastics with coal ash are detachably mounted to the upper part of the fish- gathering bank. In a preferred embodiment, the fish-gathering bank 10 is constituted with concrete walls 2 of quadrangular form having a hole 1 bored at their centers thereby forming hollow space surrounded with four sheets of the walls.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a fish reef having a seaweed bed function on its upper part capable of growing kelp and seaweed, etc., and a fish gathering in a hollow part inside the fish reef, where abalone and sea urchin grow. It relates to a seaweed bed shaped fish reef that can be used.

[0002]

2. Description of the Related Art Conventionally, a square reef with a space inside,
It is known that a vertical concrete plate is provided inside the reef to change the ocean current within the reef, but the reef has a function of creating a seaweed bed, and in particular, the breeding ground for kelp and wakame etc. There is no fish reef that focuses on adding fish.

[0003] In some cases, concrete blocks are used as fish reefs for kelp and seaweed. In this case, after about three years, other seaweed organisms cover the seaweed, and the desired kelp or seaweed cultivation is carried out. There is a drawback in that the function of the device is degraded and useless, which is considered to be a problem.

Further, in a sea area with a rocky shore phenomenon, special lime algae are infested and other seaweeds and organisms cannot be attached, and there is no real countermeasure against such a confused rocky shore. Is the current situation.

[0005] Further, the sea area facing the open sea is easily affected by waves, and the waves in the breaking wave zone may cause scouring of the front mound of an installation mound of a concrete block or the like, and no countermeasures have been considered.

[0006]

SUMMARY OF THE INVENTION According to the present invention, kelp and wakame can be proliferated even in a sea area at a depth of 2 to 3 m deeper than the water depth where kelp and wakame can live, and the inhabitation of small creatures such as shrimp increases. Fish that eat the fish gather further and can form a fish reef that can proliferate abalones and sea urchins that eat seaweed, and are highly stable against waves in the surf zone in the sea area of the fish reef. To provide a seaweed bed-formed fish reef that forms a sea area rich in fish, marine flora and fauna by establishing a farm for kelp and seaweed, etc.

[0007]

SUMMARY OF THE INVENTION The present invention comprises a concrete plate or a porous concrete plate provided with a large number of small grooves at the top of a fish reef, or a seaweed bed formed fish reef to which a simple concrete plate is removably attached. In addition, coal ash is added to the block plate or waste plastics formed by melting and solidifying waste plastics on the top of the fish reef, and then solidified by melting and solidifying waste plastics. A block board formed by adding coal ash to waste plastics and melting and solidifying the block board, and a block board provided with irregularities on its surface may be a releasably attached seaweed bed molded fishing reef.

[0008] Further, a rope mesh in which a rope with seeds of algae is tied at appropriate intervals is removably attached to the upper part of the fish reef, or a reef board in which rope fixing brackets are embedded at appropriate intervals is provided above the fish reef. Attach a rope with seeds of algae to the rope fixing bracket, or arrange multiple fish reefs side by side, stretch the rope for attaching the rope with seeds of algae so as to cover the entire upper surface, and set an appropriate interval on this rope. Attach ropes with seeds of algae, fish reefs form a hollow space consisting of four sides with concrete square walls with holes on the wall, and fish reefs For example, it may be formed of a truncated square pyramid having a hole in a wall surface and having at least an upper surface.

Further, a hollow truncated pyramid having at least four upper surfaces having holes in four inclined wall surfaces is integrated with a lower portion of the hollow rectangular parallelepiped or cube, or located at an upper portion of a fish reef. Next to the concrete plate, a cross-shaped locking pin is rotatably attached to the top of the side wall of the fish reef so that the concrete plate can be fixed and removed.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a fish reef according to an embodiment of the present invention. FIG. A hollow cube having a square wall 2 made of concrete having a round hole 1 and having a square wall 2 such as a rectangle on four sides. A lattice member 3 made of a steel frame material or the like is provided on an upper plane of the cube. The lattice portion of the lattice member 3 is formed by detachably attaching a concrete plate 4 having an appropriate thickness or a porous concrete plate 4 which forms a large number of small grooves.
Is provided with a hook 5 for attachment and detachment.

Further, without providing the lattice-like member 3, a groove provided on the surface of a single concrete plate or a crushed stone may be attached, and a member provided with irregularities may be detachably attached. The concrete plate 4 is used as an algae reef plate for cultivation of kelp and seaweed. When the function as the algae reef plate is deteriorated, the concrete plate 4 is replaced or cleaned, but the reef 10 shown in FIG. It will be installed in the sea area where the impact is small.

Next, a fish reef 10 of another embodiment shown in FIG.
In place of the concrete plate 4 of FIG. 1, ropes with seeds of algae such as kelp and seaweed are placed at appropriate intervals in a lattice member 3 provided on the upper plane of a hollow cube having the same configuration as that of FIG. The rope mesh 6 tied to the rope mesh 6 is detachably attached to the rope mesh 6, and a target kelp, seaweed, and the like can be reliably cultivated, and the harvest can be easily performed by removing the rope mesh 6. It can be done economically.

Next, in the fish reef 10 of another embodiment shown in the side view of FIG. 3 and the plan view in the AA direction of FIG. 3, the rope fixing metal 9 is embedded at an appropriate interval above the fish reef 10. A concrete reef board 18 is provided, and a rope 8 with a seed of algae such as kelp or wakame is tied to these rope fixing brackets 9 and attached thereto. Hanging fittings 11 as appropriate
Is embedded and provided.

Further, in the embodiment shown in the perspective view of FIG. 5, a plurality of fish reefs 10 are arranged in a zigzag arrangement or the like as appropriate, and a rope 8 with seeds of algae such as kelp and seaweed is provided so as to cover the entire group of fish reefs 10. A rope 7 for attaching algae is attached to the rope 7 at appropriate intervals.

That is, the algae grown on the rope with seeds of kelp and seaweed at the time of harvesting can be easily taken only by a diver and a fishing boat, and a large reef space below these ropes 8 with seeds serves as a fish reef space. In addition, it can provide a suitable habitat for abalone, turtles, sea urchins, etc.

At the top end of each of the fish reefs 10, a stopper 12 of an appropriate shape such as a T-shaped attachment for mounting the rope 7 is buried. While catching and fixing the whole top of each reef 10 as shown in Fig. 5, kelp and seaweed are cultured,
At the time of these harvests, another rope is lowered into the water from the ship, the seeded rope 8 is tied to the end of the tied rope 7, sequentially removed from each of the fasteners 12, and pulled up from the ship by human power or a power drum. be able to.

Further, in the seaweed bed molded reef of the present invention, as shown in FIGS. 1 to 5, each of the fish reefs 10 is a concrete square wall 2 having a hole 1 in the wall surface from four sides. A hollow space such as abalone, turtle, sea urchin, etc. can be provided in this hollow space.

Next, a fish reef 10 according to another embodiment shown in the perspective view of FIG.
And is formed by a truncated quadrangular pyramid having at least a top surface having no hollow.

Here, at least the truncated quadrangular pyramid fish reef having no top surface is settled if the bottom surface is used in the case of sandy ground, and it is more stable if there is no bottom surface in the case of bedrock. Because it is good.

In the fish reef 10 in this case, the hollow cube itself is formed as a truncated square pyramid having holes 13 in four peripherally inclined walls, so that the overall height is reduced and relatively heavy concrete is used. The structure is very stable against wave power, and the flow of waves is improved, so that the structure can prevent scouring of the ground.

Further, in each of the embodiments shown in the perspective views of FIGS. 7 and 8, a fish reef 10 shown in FIG. 6 is provided below a hollow rectangular parallelepiped or cube as shown in FIGS. 1, 2 and 3. Similarly to FIG. 7, a hollow truncated square truncated pyramid 14 having a hole 13 and no upper and lower surfaces is integrated into two inclined four walls, and FIG. 7 shows the fish reef of FIG. 1 and FIG. 2 shows a state in which the truncated pyramid 14 is integrated with each of the fish reefs 10 in FIG. 2, thereby improving the stability of the fish reef 10 and preventing the scouring. Here, the reason why the truncated quadrangular pyramid has at least an upper surface is the same as that in the embodiment shown in FIG.

Next, FIG. 10 is a plan view of FIG. 9 and FIG. 10 is a sectional side view taken along the line BB of FIG. 9. FIG. 10 shows an example of means for attaching the detachable concrete plate 4 to the inside of the lattice member 3 shown in FIG. The mounting bracket 15 shown and shown is made of a steel plate embedded and installed in the concrete at the top end of the concrete gantry 20. In addition, concrete stand 2
At the center of each side except for the outer periphery of the grid-like member 3 fixed to 0, mounting brackets 15 of the same steel plate are fixed by welding. A concrete plate 4 is installed on the side, an appropriate hole is made in the steel plate 15 in accordance with the height of the top end of the concrete plate 4, and a horizontal round steel of a stop pin 16 in which a round steel is welded in a cross shape. 21 is passed through the hole, and the vertical round steel 22 rotates the fixing pin 16 by 90 degrees in the direction of the arrow T at the end face position of the concrete plate 4, and the vertical round steel 22 is connected to the steel plate of the mounting bracket 15 and the concrete plate 4. The concrete plate 4 is fixed by pressing the concrete plate 4 from the top and the side at the same time without being pulled out by being fitted into the gap between the side surface and the retaining pin 16.

When returning from the above state, the upper part of the vertical round bar 22 of the stopper pin 16 is hit with a hammer or the like.
It can be inverted and returned to the original position of 90 degrees, and can be pulled out. Reference numeral 17 in the figure denotes a hanging metal fitting for removing the concrete plate 4. Thus, the position of the concrete plate 4 can be fixed or removed only by rotating the cross-shaped stop pin 16.

The present invention is directed to a block board formed by melting and solidifying waste plastics, a block board formed by melting and solidifying waste plastics and having irregularities on the surface, and a waste plastics instead of a concrete board. A block plate formed by adding and melting and solidifying coal ash and a block plate formed by adding and melting and solidifying waste ash with waste plastics and having an uneven surface can be used.

[0025]

According to the seaweed bed shaping reef of the present invention described above, it is possible to have a function of forming seaweed beds such as kelp and seaweed, and to cultivate abalone, sea urchin, turtle and the like in the fish reef. It can provide a place to create rich sea areas with fish, marine animals and plants.

In the present invention, a concrete plate removably functioning as a concrete reef plate on the upper surface of a fish reef,
Rope mesh with rope with seeds of algae is arranged, and when harvesting grown kelp or seaweed, it is easy to remove and replace them, and culturing and harvesting of these objects is reliable and easy. It is economical because it can be done.

In particular, in the fish reef of the present invention, a truncated quadrangular pyramid having four sides formed on a slope is formed, or the truncated quadrangular pyramid is integrated with a lower part of a hollow cube to prevent waves in the surf zone. The structure has high stability, the flow of waves is good, and it is possible to prevent scouring of the front of the installation mound.

Further, in the present invention, a rope with algae seeds is disposed on the upper surface of the reef and the space between the reefs, so that the grown kelp or seaweed can be easily taken in by a diver or a fishing boat. Can do it.

[Brief description of the drawings]

FIG. 1 is a perspective view of a fish reef according to an embodiment of the present invention.

FIG. 2 is a perspective view of another embodiment of the fish reef of the present invention.

FIG. 3 is a side view of another different embodiment of the fish reef of the present invention.

FIG. 4 is a plan view in the AA direction of FIG. 3;

FIG. 5 is a perspective view of an embodiment in which a plurality of fish reefs are arranged, and a rope for attaching a rope with seeds of algae is stretched around the entire upper surface thereof.

FIG. 6 is a perspective view of an embodiment of a fish reef comprising a truncated square pyramid without an upper surface.

7 is a perspective view of an embodiment in which the truncated pyramid of FIG. 6 is integrated with the lower part of the fish reef of FIG. 1;

8 is a perspective view of an embodiment in which the truncated pyramid of FIG. 6 is integrated with the lower part of the fish reef of FIG. 2;

FIG. 9 is a plan view showing an attaching means for detachably attaching a concrete plate to the upper surface of the fish reef of FIG. 1;

FIG. 10 is a side sectional view taken along the line BB of FIG. 9;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 hole 2 wall 4 concrete board 6 rope mesh 7 rope 8 kinds of rope 9 rope fixing bracket 10 fish reef 13 hole 14 square truncated pyramid 16 stop pin 18 concrete reef board

Claims (9)

[Claims] 1. A seaweed bed formed fish reef in which a concrete plate having a large number of small grooves provided thereon, a porous concrete plate or a simple concrete plate is detachably attached. 2. A block plate formed by melting and solidifying waste plastics or a block plate formed by melting and solidifying waste plastics on the upper surface of a fish reef.
Algae removably attached to a block plate formed by adding coal ash to waste plastics and fusing and solidifying, or a block board formed by adding coal ash to waste plastics and fusing and solidifying the surface to provide irregularities. Jizo fishing reef. 3. A seaweed bed formed fish reef in which a rope mesh in which a rope with a seed of algae is tied at an appropriate interval above the reef is removably attached. 4. A seaweed bed formed fish reef in which a reef board in which a rope fixing bracket is embedded at an appropriate interval is provided above the fish reef, and a rope with algae seeds is connected to the rope fixing bracket. 5. A seaweed bed in which a plurality of fish reefs are arranged side by side, a rope for attaching a rope with seeds of algae is stretched around the entire upper surface thereof, and ropes with seeds of algae are attached to the ropes at appropriate intervals. Type reef. 6. The seaweed bed formed fish reef according to claim 1, wherein the fish reef is formed of a four-sided hollow space by a concrete rectangular wall having a hole in a wall surface. 7. A seaweed bed formed fish reef, wherein the fish reef comprises a hollow truncated pyramid having at least four upper surfaces having holes in four inclined wall surfaces. 8. A hollow quadrangular truncated pyramid having at least an upper surface having a hole in four inclined wall surfaces around the inclined rectangular solid or cube according to claim 1, 2, 3 or 4. Seaweed bed formed fish reef. 9. A seaweed bed shaping method in which a cross-shaped locking pin is rotatably attached to the top of the side wall of the fish reef next to the reef plate located above the fish reef so that the concrete plate can be fixed and removed freely. Fish reef.