JPS5849139B2 - Artificial flocked algae board structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] The present invention relates to fish, crustaceans, shellfish, and other fish and shellfish (hereinafter simply referred to as fish and shellfish).

The present invention relates to an artificial flocked algae board structure used in an artificial fish reef for propagation, which protects and hatches the eggs of A.

[Background of the invention]

Conventional artificial reefs include reefs for collecting octopuses and reefs for breeding fish and shellfish.

In recent years, due to problems such as the depletion of marine resources and the need for fish reefs for collecting octopus, the propagation and cultivation of marine resources has been advocated.
The development of fish reefs for breeding was highly anticipated.

At present, attempts have been made to repurpose or improve octopus collection reefs, culture vessels, etc., and to apply artificial seaweed as fish reefs for propagation.
In both cases, there is little colonization of fish and shellfish eggs and juveniles, and there is little habitat for food organisms, and there is poor defense and protection against external enemies.
Furthermore, there were other problems such as a short service life, making it impractical.

To be more specific, fish reefs for collecting octopuses are intended for adult fish and shellfish, and there are major problems with their mechanism and structure in order to target eggs and larvae, which are less than one-hundredth of adult fish and shellfish. There is,
It is not possible to expect the establishment of the eggs and young, the habitat of food organisms for the young, defense against external enemies, protection, etc.

This fish reef for collecting octopus is usually built at a depth where adult fish and shellfish live, but this water depth is deeper than the shallow sea (wave breaking zone) where fish and shellfish eggs and juveniles live, and it is affected by waves. Since the structure is not designed with strength and stability in mind, if it is submerged in shallow water, it is likely to collapse, overturn, tilt, slip, etc.

Similarly, culture vessels have poor durability because they are used in sea areas where waves, currents, etc. are weak.

In addition, there are underwater forests or artificial algae reefs in which synthetic resin films are planted on the seabed as pseudo-seaweed to generate upwelling currents and promote the habitation and reproduction of food organisms such as plankton. Targeted at seafood, body length 11nπ
There are mechanical and structural problems in targeting the following eggs and young, and there are drawbacks in the establishment of fish and shellfish eggs and young, protection from external enemies, durability, etc.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and is an artificial fish reef for breeding that forms an environment suitable for the protection, growth, and habitat of fish and shellfish eggs and larvae, and has the following function m-44). The purpose of the present invention is to provide an artificial flocked algae board structure for use in.

(1) Shape suitable for spawning of fish and shellfish, floating eggs, and establishment of juveniles.

(2) The shape is suitable for the attachment, settlement, and habitation of seaweeds, lower-order animals and plants, etc., which are food organisms for young fish and shellfish, and they reproduce quickly.

(3) The shape must be able to protect or protect the eggs and young of fish and shellfish from external enemies, and be suitable for a stable resting place.

(4) Shallow sea (breaking wave zone) where fish and shellfish eggs and juveniles live
The shape must be robust, durable, and stable against external forces such as waves and currents.

[Summary of the invention]

The key point of the present invention is to place piles cut to a length of 0.6 to 10 cm suitable for the settlement and habitation of fish eggs and young on both sides or one side of the plate-shaped body that is the material of the fish reef for reproduction. The density is 5-50. 9
/m2 in an artificial hair-planted algae plate structure which is completely or partially flocked with hair.

[Embodiments of the invention]

Embodiments of the present invention will be described below based on the drawings.

FIGS. 1 and 2 are views showing an artificial flocked algae board structure which is an embodiment of the present invention, with FIG. 1 being a front view and FIG. 2 being a side view.

In the figure, reference numeral 1 is a relatively thick plate made of concrete, etc., and piles 2 made of bundles of bark fibers of many palm trees are placed on both sides of the plate at the top and bottom, as well as through holes. An artificial flocked algae board structure 5 is made by leaving a small non-flocked part around 3 and planting hair on both sides by mechanical flocking method.

By appropriately combining a plurality of artificial flocked algae board structures 5 having such a structure, an artificial fish reef for enlarging crustacean eggs and juveniles is made.

Crustaceans such as shrimp and crabsJ) Juveniles have a body length of less than one month, and the shells of juveniles in the puerulus stage in particular are soft and have little resistance, so they are preferred food for fish and shellfish.
The main purpose is to protect this.

In this case, pile 2 is bent, refracted, and bent by waves and currents.
It is necessary to construct the structure so that it has rigidity so that it will not break, and the length must be determined so that the young can be sufficiently hidden and unaffected by ocean currents and other external forces, in a relatively stable place, where the buds can stagnate. It is necessary to have sufficient length to form layers.

In this regard, the length should be 0.6 to 10 CrrL,
It was confirmed through a sedimentation survey that the flocking density should be coarse enough to allow the young to easily penetrate and live there, and should be 5 to 20 El/m.

3 and 4 are diagrams showing an artificial flocked algae board structure constituting another embodiment, with FIG. 3 being a front view and FIG. 4 being a side view.

Referring to the figure, reference numeral 1 is a relatively thin plate-shaped body made of concrete or the like with holes 3 here and there, and on one side of this plate-shaped body, a flat pile 2 made of a nylon resin film is bonded with a resin layer 6. The artificial hair-flocked algae board structure 5 is prepared by electro-flocking the entire surface.

An artificial fish reef for propagation is made by appropriately combining a plurality of artificial flocked algae board structures 5 having such a structure.

The body length of the eggs and young of land-based fish such as perch, red sea bream, greenling, kawano, and oyster, and shellfish such as sea urchin, abalone, and turban shell is less than one centimeter, similar to crustaceans, but in this case, it is not about protection. The main purpose is to create a suitable feeding ground and habitat.

Therefore, it is best to use piles that are relatively flexible and have curved, twisted, curled, etc. shapes to which seaweed, their spores, lower-order plants and animals can quickly attach and settle, and the length of the pile is limited. 0.6~2c that the baby can hide to some extent
A suitable length is 20 to 5 m, and the flocking density is relatively dense.
0 9 /m'' was confirmed as a result of a sedimentation survey.

Note that the shape of the plate-like body 1 is not limited to that shown in the drawings, and may be triangular, quadrilateral, polygonal, circular, oval,
It may be irregularly shaped and may have holes or grooves on its surface.

In addition, the holes 3 and non-flocked portions 4 drilled in the algae plate structure 5 are for fixing, anchoring, and engaging with connectors, other algae plate structures 5, fish reef structures, etc. be.

Next, an example of an artificial reef for increasing clay using these artificial flocked algae board structures 5 will be described.

FIG. 5 is a front view when a plurality of artificial flocked algae plate structures 5 shown in FIG. 1 are installed inside the fish reef structure 1.

The plurality of seaweed plate structures 5 are arranged substantially vertically so as to overlap each other at regular intervals, and are fitted into grooves 8 provided in the fish reef structure 7.

The bolt 9 is connected to the hole 3 of the seaweed plate structure 5 and the hole 3 of the fish reef structure 7.
' is fixed by a nut 10 to prevent the algae plate structure 5 from slipping out.

FIG. 6 is a front view when a plurality of the artificial flocked algae plate structures 5 shown in FIG. 3 are used and assembled in a substantially horizontal direction with bolts 9 in a stepwise manner to form an integrated structure.

Since the plurality of algae plate structures 5 are assembled in a step-like manner, bright and dark areas are formed by sunlight, making it easy to generate upwelling currents and creating a suitable habitat for fish and shellfish eggs and young. take shape

Since the surface of the artificial flocked algae board structure 5 constructed in this way has an uneven shape due to the flocked piles 2,
Facilitates the attachment and settlement of torn algae, seaweed spores, floating eggs, etc., the generation of lower-order flora and fauna such as plankton, and the settlement of floating larvae, and provides a good feeding ground for and nurturing of fish and shellfish eggs and young. They begin to form habitats with shelter and shelter.

In addition, this algae plate structure 5 can be fixed, fastened, or
Since it is engaged, it can be easily attached and detached, and it can also be used as a connector for attaching fish and shellfish eggs and larvae, and for collecting seedlings.

Furthermore, if the algae plate structure 5 prevents the settlement and reproduction of seaweed due to adhesion of silica or the like, or if the flocked pile falls off and its function deteriorates, the algae plate structure 5 can be removed. It can be removed and replaced with a new algae plate structure 5, and the same fish reef structure 7 can be used semi-permanently.

Further, the removed algae plate structure 5 can be desiliconized, replanted with hair, and reused.

Since the surface pile of the artificial flocked algae plate structure 5 shown in the above embodiment has an uneven shape, torn algae, seaweed spores, lower animals and plants, floating eggs, floating larvae, etc. Stochastically, they attach, settle, and reproduce at a high frequency, and upwelling occurs, rapidly changing the suitable feeding and habitat environment for fish and shellfish eggs and young.

This artificial flocked algae plate structure 5 is made by arranging two or more sheets randomly or at regular intervals so that they overlap in whole or in part, and also randomly or approximately horizontally or approximately vertically using a connector or the like. By fixing and making it into an integral body, it can be made into a fish reef structure.

Furthermore, the artificial flocked algae plate structure 5 can be easily attached and detached from the fish reef structure using a connecting tool, and the artificial flocked algae plate structure 5 can also be renewed.

The pile 2 can be made of natural fibers and/or synthetic resin fibers or films.

Natural fibers include rigid plant fibers from the palm family, fern family, roots of trees, etc., flexible plant fibers from the family Araceae, moraceae, mallow family, etc., body hair of pigs, boars, etc., horse tail hair, animal whiskers, etc. Examples include rigid animal fibers, rabbit and sheep hair, and flexible animal fibers such as silk thread. Examples of synthetic resin fibers or films include polyester resins, polyamide resins, acrylic resins, vinyl resins, and polyolefin resins. Fibers with shapes such as circular, square, flat, etc. formed from the above, slit fibers and tapes obtained by cutting thin filaments formed from filaments formed from these, or films formed from the above-mentioned synthetic resins, as well as carbonized fibers of these, etc. Can be mentioned.

These piles 2//'i. The pile type, stiffness, pile length, flocking density, etc. are appropriately selected depending on the type, size, habitat condition, etc. of the target fish and shellfish eggs and fry.

Traditional pile shapes include not only the usual linear shape, but also bent, twisted, curled, etc., and by selecting these to construct the pile, the stiffness can be adjusted as desired.

In addition, the flocking of the pile is carried out by flocking means such as manual flocking, mechanical flocking, electric flocking, etc., to uniformly or in a pattern on both sides or one side of the plate-like body.

Both the planting method and the adhesive method can be used as the flocking method, but when the pile length is 2 cm or more, manual flocking or mechanical flocking is preferable, and when the pile length is 2 cm or less, electric flocking is preferable.

The material of the plate-like body 1 on which the pile 2 is flocked is concrete, slate, steel, F, etc., which are commonly used for artificial reefs.
-R-P materials, synthetic resin materials, and mixtures or shaped materials thereof can be used, and the shapes can be flat, corrugated, curved, etc.

〔Effect of the invention〕

As explained above, the artificial flocked algae plate structure according to the present invention has a length of 0.6 to 10 CIr on one side or both sides of the plate-like body.
L straight, bent, twisted, curled, etc. piles with a flocking density of 5 to 50. Since the artificial hair-planted algae plate structure has a structure in which the entire surface is partially flocked with hair at a p/m", it is possible to create an environment suitable for protecting, raising, and inhabiting the eggs and young of fish and shellfish. It has the excellent effect of being able to create an artificial reef for breeding fish.

[Brief explanation of drawings]

FIG. 1 is a front view of an artificial flocked algae board structure which is one embodiment of the present invention, FIG. 2 is a side view of FIG. 1, and FIG. 3 is a front view of an artificial flocked algae board structure which is another embodiment of the present invention. Front view, Figure 4 is the 3rd
Figure 5 is a front view of the artificial flocked algae board structure shown in Figure 1 attached to a fish reef structure, and Figure 6 is a combination of multiple artificial flocked algae board structures shown in Figure 3. It is a front view of a fish reef structure. Code 1...Plate-shaped body, 2...Pile, 3
, 3'... hole, 4... turnip flocked part, 5...
...Artificial flocked algae plate structure, 6...Adhesive resin layer, 7...Fish reef structure, 8...Groove, 9... Boruto, 10...Natsuto.

Claims (1)

[Claims] 1. Length 0.6 to 10 cIr on one side of the plate and on both sides.
An artificial flocked algae plate structure obtained by fully or partially flocking piles having a straight, bent, twisted, curled, etc. shape at a flocking density of 5 to 50 g/ml.