JPS5839493B2 - Artificial algae deposited fish reef - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to artificial algae-deposited fish reefs, and specifically relates to fish, alien species, crustaceans, and other fish and shellfish (hereinafter simply referred to as fish and shellfish).

) creates an environment suitable for laying eggs, hatching, and protecting, raising and inhabiting their young, and in particular, the natural fiber and/or synthetic resin piles on the flocking board allow eggs and young to easily attach to them. This invention relates to an artificial algae-deposited fish reef on which the flocked plates can be attached removably and easily replaced.

Traditionally, there are two types of artificial reefs: those designed exclusively for fishing and those designed exclusively for protection and breeding.The former is a reef for collecting adult fish and shellfish, and the latter is a reef for breeding fish and shellfish eggs and juveniles. It is called a fish reef.

Recently, due to problems such as the depletion of fisheries resources and the 200-mile limit, there has been a desire to develop reefs for breeding in addition to reefs for collecting fish.

The functions required of a fish reef for reproduction are: (1) Suitability for spawning of fish and shellfish, floating eggs, and settlement of young fish and shellfish, (2) Adhesion of diatoms, lower-order animals and plants, etc., which are food organisms for young fish and shellfish. (3) The eggs and young of fish and shellfish are protected from external enemies and can be protected and stably rested. (4) The eggs and young of fish and shellfish live there. Shallow sea (breaking wave zone)
To withstand external forces such as waves and currents, etc.

Up to now, fish reefs have been used for collecting fish, but there are few eggs and juveniles colonizing them, and there are few habitats for food organisms, and problems remain in terms of defense against external predators and durability.

In other words, while reefs for collecting fish and shellfish are intended for adult fish and shellfish, the number of eggs and juveniles is less than one-tenth of that of adult fish and shellfish, and the reef must be constructed with an appropriate mechanism and structure.

The purpose of the present invention is to solve the above-mentioned problems, and specifically, it is possible to create an environment suitable for the settlement, hatching, protection, cultivation, and habitat of fish and shellfish eggs and juveniles, and it is extremely easy to replace the main components. We propose a fish reef that can be easily constructed.

Embodiments of the present invention will be described below with reference to the drawings.

First, in Fig. 1, reference numeral 1 indicates a fish reef structure, and when the structure is composed of a hexahedron, a bottom plate 2, pillars 3 provided at its four corners, and a structure constructed between the tops of the pillars 3. It consists of digit 4.

Further, in the structure 1, a jetty 5 is provided approximately in the center of the bottom plate 2, a jetty 5' is provided between the girders 4 so as to face the jetty 5, and furthermore, the bottom plate 2, the upper and lower jetties 5, 5', and An engagement groove 6 is formed in the girder 4.

The structure 1 is usually integrally molded and has a hexahedral shape as described above, but other shapes include triangular, square, polygonal, circular, elliptical, etc. in cross section, such as box, cylindrical, pyramidal, etc. It can be constructed into three-dimensional shapes.

Next, the flocking plates 7 shown in FIGS. 2 and 3 are removably inserted or fitted into each engagement groove 6.

This flocked board 7 has at least one side of the pile 8 entirely or partially flocked by a manual flocking method, a mechanical flocking method, an electric flocking method, a forming flocking method, or the like.

In addition, when the flocking board 7 is inserted from the side opening of the structure 1 from the left and right sides as described above, a space is formed at the jetty 5 in the center, and this space prevents the generation of upwelling flow. promoted.

In addition, if the flocking board 7 is easily removed from the retaining groove 6 when it is submerged or due to waves, currents, etc., as shown in FIG. is preferred.

In addition, it is necessary to increase the strength and stability of the structure, and it is desirable to use relatively heavy materials such as concrete, steel, and stone. However, a stabilizer made of concrete or steel can be attached to the bottom of the structure.

Further, it is sufficient that the flocked board is similarly made of concrete material, steel material, stone material, wood, slate material, F-R-P material, synthetic resin material, etc.

The pile is made of natural fibers and/or synthetic resins, and natural fibers include plant fibers such as coconut fiber, board fiber, linen, and cotton, and animal fibers such as animal hair, horsehair, beard, and silk thread. Synthetic resins include fibrous materials such as polyester resins, polyamide resins, and polyolefin resins;
A threaded material or a slit-like material is sufficient.

As explained in detail above, the present invention is surrounded by a structure on the outside and has a flocking board inside, so the structure is strong and the piles on the flocking board protect the eggs and young of seafood. In addition, the unevenness formed between the piles, that is, the stagnation layer, makes it easier for torn algae, diatom spores, lower-order plants and animals, floating eggs, floating larvae, etc. to attach and settle.

In addition, each opening in the structure allows for good intake of sunlight, allowing lower-order flora and fauna such as diatoms and plankton, which serve as food for young fish and shellfish, to proliferate, creating a suitable habitat for eggs and young fish and shellfish. , a growing environment, a protective environment, etc. are formed.

Furthermore, since each flocking board is removably locked, even when the functionality of the flocking board deteriorates, it can be easily removed under the sea and regenerated or replaced, allowing for semi-permanent use.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a fish reef structure according to one embodiment of the present invention, FIGS. 2 and 3 are front and side views of a flocked board according to the present invention, and FIG. 4 is a fish reef shown in FIG. 1. FIG. 3 is a front view of an artificial algae-deposited fish reef formed by attaching the flocking board of FIG. 2 to a structure. Code 1...Fish reef structure, 2...Bottom plate,
3... Support, 4... Girder, 5, 5'.
... Jetty, 6 ... Engagement groove, 7 ...
Flocked board, 8...pile.

Claims (1)

[Claims] 1 Inside a three-dimensional structure having openings on the top and side surfaces, retaining grooves are formed on the upper and lower inner surfaces thereof, and the flocking plates are removably attached so that the upper and lower ends engage with these respective engagement grooves, and each An artificial algae deposited fish reef, characterized in that at least one side of the flocked board is entirely or partially flocked with piles of natural fibers and/or synthetic resin.