JPS58220629A - Artificial breeding bank of kombu - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] The present invention relates to an artificial cultured reef for kelp.

Conventionally, artificial reefs for kelp cultivation have been known, such as by placing broken stones or concrete blocks on the seabed, or by stretching lobes made of synthetic resin.

By the way, the above-mentioned artificial aquaculture using broken stones (#!) Since the broken stones are relatively cheap and have many fine, sharp irregularities on the surface, kelp spores can easily attach and grow, but as the kelp grows, the surface of the broken stones If the concave irises disappear due to being covered with deposits such as lime (so-called sea-burning phenomenon), the aquaculture function will be significantly reduced within 2 to 3 years, especially since the lime becomes a hindrance to the settlement and growth of kelp spores. I weigh it.

The grown kelp has roots firmly attached to the surface of the hard split stone, so when it is pulled from the ship and collected, the expensive roots that have broken off from the inner coating and stick to the split stone fC.
The drawback is that it requires a lot of time and money to recover the aquaculture function by removing the remaining roots and lime deposits attached to the broken stones, and is also technically difficult. There is.

In addition, artificial cultured reefs that are built on the concrete blocks are not only uneconomical because the concrete blocks are expensive and require a lot of time and money to remove the scum from the cement, but also have minute sharp angles on the surface. Due to the lack of unevenness, it is difficult for kelp spores to settle on the surface, and as the kelp matures, its surface is covered with deposits such as lime, and when the kelp is harvested, residual roots are formed and the aquaculture function is lost within 2 to 3 years. However, there are drawbacks such as the fact that removing deposits such as lime and remaining roots to restore the aquaculture function requires a great deal of cost and is technically difficult.

Furthermore, the artificial reefs made of synthetic resin ropes are more fragile than broken stones or concrete blocks, so they are more likely to be cut and washed away by currents, waves, etc., and the roots are firmly attached to the ropes. Because of this, it has the disadvantage that it breaks off midway during harvesting, leaving residual roots.

Therefore, the present invention is made by solidifying a plurality of unglazed ceramic blocks TL made of clay as the main raw material into a plate shape. A scale that has good growth and growth and will not break the kelp in the middle and leave residual roots when harvesting, or a scale that automatically removes lime and other materials on the surface as it is harvested, and a new, unused one to leave behind the harvest site. It is an object of the present invention to provide an artificial culture reef for kelp that eliminates the above-mentioned conventional drawbacks at once, such as having an exposed surface and maintaining an extremely high aquaculture function.

The illustrated embodiment will be described below.

a1 to "It" are unglazed solid ceramic blocks made mainly of clay, and since they all have the same shape, the ceramic block a1 will be explained in more detail.

Ceramic block am has a substantially rectangular parallelepiped shape with a length of 32 m, a height of 15 oi, and a width of 15.4 oi, and has 7 thin protrusions 3 with a rectangular cross section in the longitudinal direction of the upper surface 1 and the lower surface 2 of the horizontally long rectangular width.
Ceramic blocks a and 80 are shown in FIG. .8 is also curved inward and there is 1.

The ceramic blocks a,~''11 are arranged in four rows, three rows apart, with a slight gap between them, with their longitudinal directions facing left and right.
Insert the K reinforcing bars 9, 10 between the opposing rows (2 places) of each row of 1 to a□, and insert the ceramic blocks a, ~a,! in four vertical rows. The reinforcing bars 11 to 13 are inserted between the opposing parts of each row (3flf), and the intermediate portions are welded and connected to the reinforcing bars 9 and 10.

In addition, the outer peripheral recesses of ceramic blocks a, ~all (
An annular reinforcing bar 14 is arranged along the front back (114.5), left and right sides (7, 8), and the tips of the reinforcing bars 9 to 13 are welded and connected to this reinforcing bar 14. ～A、By filling the opposing spaces between them and the four outer peripheries with concrete 15, these ceramic blocks A8
~att is consolidated into a horizontally long rectangular plate shape.

Hanging rings 16 are integrally formed at the projecting ends of the reinforcing bars 11 and 13.

In this way, the artificial cultured reef A constructed of the ceramic blocks a, ~aSS is suspended from the suspension ring 16 through the lawn, and each ceramic block a, ~color 1. One by one or several Fi and Il suspension rings 16 are installed on the seabed with the upper surface 1 facing up, connected to each other by screws, wires, etc. The surface of each ceramic block a, ~a□ installed on the seabed has countless fine, acute-angled unevenness due to the unique structure of unglazed clay, making it easy for kelp spores to attach and grow. The accompanying roots dig into the grooves between the protrusions 3 and trap the protrusions 3 and arrive firmly there, so there is no risk of the roots being torn off by currents, waves, etc. and the kelp being washed away.

The above-mentioned kelp spore settlement rate on the surfaces of conventional cracked stones, concrete blocks, and synthetic resins. - It has been experimentally confirmed that the spores are also excellent in growth, and that the spore settlement rate is particularly high at the spacing between the roots of the protrusions 3.

When the grown kelp is pulled from a boat and collected, the upper surface 1 and the ridges 3 to which the roots are attached are made of unglazed clay, so they are softer than broken stones or concrete blocks, and the surface layer peels off thinly. Because it is easy to remove, the surface layer can be peeled off along with the roots, allowing the kelp to be collected along with its roots without being cut in the middle.

As the surface layer is thinly peeled off along with the roots as described above, the adhesion such as lime on the part is automatically removed and a new, unused surface is exposed at the site of the collection, where kelp spores are exposed. Since it grows epiphytically, it is possible to maintain the aquaculture function for many years without special removal of residual roots and adhering substances such as lime.

In addition, when collecting kelp and cloth along with artificially cultured reefs by hauling them to a ship, you can collect them along with the roots in the same way as collecting konki.
It can be reused by simply removing lime and other deposits from areas other than the collection sites with a wire brush, etc., or by turning the artificial aquaculture reef A over and reusing it.
Deposits such as lime are naturally removed during turning.

In the above embodiment, the case where the protrusions were provided on the upper and lower surfaces of the ceramic block was explained, but the protrusions may be provided only on one of the surfaces, and the shape of the ceramic block may also be changed.

1. The arrangement number and condition are not limited to those in the above embodiments, but may be changed to an appropriate shape, size, etc., taking into consideration the situation of the seabed, the capacity of the installation work equipment, etc.

As is clear from the above description, according to the present invention,
Since it is constructed by consolidating multiple unglazed solid ceramic blocks made of clay as the main raw material into a plate shape, the table m of each ceramic block is as follows. Due to the unique structure of unglazed clay, there are countless fine, sharp-angled irregularities on the reef, which allows kelp spores to settle on the reef more easily than conventional artificially cultivated reefs made of broken stones, concrete blocks, and synthetic resin lobes. The settlement rate is much higher, and not only is there less waste of kelp spore seeds, but it is also economical because it does not require time-consuming and expensive work such as removing scum from concrete blocks.

In addition, the kelp forms ridges on its surface, and as the epiphytic kelp grows, its roots dig into the grooves between the ridges and firmly attach themselves to the ridges, so the tides, There is no risk of the roots being torn off by waves, etc. and the kelp being washed away.

11. Furthermore, when collecting kelp, for example, when kelp is pulled from a boat, the surface on which the roots stick is made of unglazed clay, which is softer than conventional broken stones or concrete blocks, and the surface layer is softer than conventional broken stones or concrete blocks. Since the part is thin and easily peeled off, the entire expensive root part can be collected without the superficial part peeling off along with the root and cutting in the middle.

Furthermore, when the kelp is harvested, the exposed part is peeled off along with the roots, and lime and other deposits that interfere with the attachment of spores in that part are automatically removed. Since the surface is exposed and kelp spores adhere to and grow there, the aquaculture function can be maintained for many years without special removal of residual roots and adhering materials such as lime.

In addition, since a plurality of ceramic blocks are consolidated by arranging them in a plate-like manner, it is highly safe and redundant, and each ceramic block is solid and has a considerable weight as a whole.
It has many advantages such as not being swept away by the current.

[BRIEF DESCRIPTION OF THE DRAWINGS] The drawings show an embodiment of the present invention, and FIGS. 1 and 2 are partially cutaway plan views and front views, and FIG. 3 is a cross section taken along line 1--1 in FIG. It is a diagram. 81～"Ill...Ceramic block. Patent applicant: Hokkaido Agriculture Industry Co., Ltd. Agent Patent attorney: Hara 1) Shinichi 11°!.

Claims (1)

[Claims] L An artificial cultured kelp reef characterized by a solid unglazed ceramic block made of clay as the main raw material and having protrusions formed on the surface.It is made by arranging and consolidating a plurality of unglazed ceramic blocks in the shape of a tsukubai.