JPH0620386Y2 - Artificial reef - Google Patents

Description

[Detailed Description of the Invention] << Purpose of Invention >><Industrial Application Field> The present invention relates to an artificial fish reef for creating an undersea environment suitable for fish habitation and spawning.

<Background of the Invention> Generally, the environment where seafood easily grows is a reef where algae grow. This is because there is a space where this type of seafood is housed, and algae that supplement the space act synergistically. For this reason, artificial reefs have been established in such areas where there are no reefs in order to actively develop fishery resources. Specifically, a method is used in which a fish reef of a concrete block molded into an appropriate shape, an abandoned ship, or one in which a pseudo seaweed is attached to a substrate is submerged in the sea. However, for example, when sinking an abandoned ship, etc., a space where seafood is likely to live is provided, but the survival of seaweed to supplement it must wait until the floating seaweed spores arrive, and in that respect it is effective It takes a long time to appear. Moreover, most of those using pseudo seaweed are those using a kelp-like synthetic resin film, and although the principle is not clear, it is not always preferred for seafood,
In some cases, the intended purpose may not be achieved in terms of the effect of raising seafood.

Considering from this, the artificial fish reef of this kind that immediately shows the effect is that the pseudo seaweed is provided first, and that the pseudo seaweed is more natural and is preferred by seafood. Moreover, it is understood that one of the conditions of a more effective artificial fish reef is that it can be used in the sea for a long period of time.

<Technical Items Tried to Develop> The present invention has been made on the basis of grasping such problems, and the pinnate leaves of canary palms that grow naturally on the beaches of warm and tropical regions are preferable as similar seaweeds. It was confirmed that this was used to attempt the development of an artificial fish reef with excellent survival performance for seafood.

<Construction of the device><Means for achieving the object> In the artificial fish reef of the present invention, a plurality of tires are stacked and fixed in a flat state, the lower tire is filled with concrete as a filler, and the upper tire is hollow. State,
The uppermost tire is characterized in that pseudo seaweed to which canary palm feathers are applied is allowed to adhere to the upper surface of the tire, thereby achieving the above object.

<Operation of the device> When the artificial fish reef of the present invention is submerged in the sea or installed in a floating state in the sea by using a float or the like, concrete filled in the lower tire of the tires of the base body is effective. As a result, the pinnate leaves of the similar seaweed Canary palm are set upright. And because this pseudo-seaweed using the canary palm feathers is a natural plant, it is relatively familiar to seafood, and a sufficient cavity is created at the top of the tire. I prefer to collect seafood and cultivate it.
Of course, although the pseudo-seaweed to which the winged leaves of canary palm, which is such a natural plant, cannot be used semi-permanently completely, natural seaweed, etc. will survive sufficiently within the period when its useful life expires. To get.

<Embodiment> The present invention will be specifically described below based on an illustrated embodiment. Reference numeral 1 is an artificial fish reef according to the present invention, which is roughly divided into a base 2 and a pseudo seaweed 3 attached above it. First, the base 2 will be described. This base is formed by stacking a plurality of tires 10 in a flat state. In the illustrated embodiment, the base 2 is composed of two tires, an upper tire 10a and a lower tire 10b. Is. Of course, not only two tires 10 but three or more tires 10 can be installed in an appropriate number. First, the lower tire 10b is provided with fastening bolts 11 for fixing the upper tire 10a protruding upward in a stat bolt shape.
Filler made by applying concrete on the inside of 10b
It is attached in a state where it is fixed by 12. Further, a side eye hook 13 is provided on the side portion of the lower tire 10b.
On the other hand, the upper tire 10a, which is stacked above the upper tire, has a bolt receiving hole 15 for receiving the fastening bolt 11 on its lower surface side. Then, the nut 16 is screwed into the fastening bolt 11 protruding inward of the upper tire 10a to fix them. Further, the upper tire 10a is provided with a plurality of upper eye hooks 17 on the upper part thereof, and the pseudo seaweed 3 is fixed thereby. The pseudo seaweed 3 will be described below. This is an application of the winged leaves of a canary palm, and the similar seaweed 3 with the attachment string 20 entangled at the base thereof.
Is loosely attached to the upper eye hook 17 of the upper tire 10a so that the connecting portion can move sufficiently. By the way, the canary palm is an evergreen tree of the family Palmaceae, which is a large pinnate compound leaf with no branches, and the pinnate leaf maintains its shape for several years in the sea. As a domestic production area, it grows on the Pacific coast of Honshu, Shikoku, Kyushu, and the Nansei Islands, and its growth is extremely good.

It is required that at least two or more tires 10 make up the base body 2. For example, three tires are used.
If 10 is provided, put the concrete filler 12 in the two lower tires, leave only the uppermost hollow state, or put the concrete filler 12 only in the lowermost tire, and then In other words, it is sufficient that at least a hollow tire exists above and a tire filled with the filler 12 exists below, for example, by making the insides of the two upper tires hollow.

If the artificial fish reef 1 according to the present invention is installed, for example, on the seabed, a lower tire 10b filled with a so-called weight filler 12 lands on the seabed, and the pseudo seaweed 3 extends upward from there. Therefore, it looks like a rocky reef with algae, creating a seafood habitat. Of course, in addition to this installation type, as shown in FIG.
The artificial fish reef 1 may be suspended in the sea by using a suspension rope 26. Although the artificial fish reef of the present invention has been mainly described as being used in the ocean, which is often used, it goes without saying that it can also be used in seawater, freshwater, or their sacks.

<Effects of the Invention> Since the present invention has the configuration as described above, first, it is possible to sufficiently secure a recess or the like in which seafood easily grows, such as in the upper tire 10a of the base body 2, and to raise it upward so as to surround it. Since the pseudo seaweed 3 is present, an extremely favorable environment can be obtained as a growth environment for small fish and the like, and active growth there can be expected.

Further, since the pseudo seaweed 3 is not an artificial one but a natural plant material, it makes the fish and shellfish feel familiar, and in this respect also, the effect of raising and breeding is enhanced.

Furthermore, the pseudo-seaweed 3 using the winged leaves of the canary palm has extremely high durability even when installed in the sea, and maintains its shape for several years.

Furthermore, after a certain amount of time, even if the pseudo seaweed 3 comes off the substrate 2 or the shape of the pinnate leaf is no longer retained, it is a sufficient period for the natural seaweed and the like to survive. , They will instead enhance the environment for growing seafood.

[Brief description of drawings]

FIG. 1 is a perspective view showing an artificial fish reef of the present invention, FIG. 2 is a plan view showing the same, FIG. 3 is a perspective view showing a base body, FIG. 4 is a perspective view showing a lower tire, and FIG. FIG. 6 is a front view showing a pseudo seaweed, and FIG. 7 is a front view showing an installation state of the artificial fish reef of the present invention. 1; artificial fish reef 2; substrate 3; pseudo seaweed 10; tire 10a; upper tire 10b; lower tire 11; fastening bolt 12; filling material 13; side eye hook 15; bolt receiving hole 16; nut 17; upper eye hook 20; mounting String 25; Float 26; Suspended rope

Claims (1)

[Scope of utility model registration request] 1. A plurality of tires are stacked and fixed in a flat state, the lower tire is filled with concrete as a filler, the upper tire is hollow, and the uppermost tire has a canary on the upper surface. An artificial fish reef characterized by migrating pseudo-seaweed to which the winged leaves of palm have been applied.