JPH0453433A - Artificial fish reef - Google Patents

Abstract

PURPOSE:To obtain the subject artificial fish reef easy to assemble, easy to handle and free from entanglement of its artificial seaweeds by attaching projecting leaf axes to stem axes and mutually connecting between the respective stem axes in a net shape respectively using a different thread. CONSTITUTION:Long projecting leaf axes 14 are attached to a stem axis 17 of net-shaped seaweeds 19 to be moored to a mooring unit and mesh loops 11, 11', 11''... are connected in a chain state in the longitudinal direction (W). The respective stem axes are mutually connected so that the space (a) between the respective stem axes 17, 17' and 17'' may be <=10mm and that the space (b) between the threads 16, 16' and 16'' may be >=10 mm, thus forming openings 18 having a dimension of (a) and (b).

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to an artificial reef.

[Conventional technology]

BACKGROUND ART Conventionally, it is known to create a fish reef by arranging a large number of tapes made from cut fabric, film, or film, connecting them to moorings, and submerging them in water.

[Problem that the invention seeks to solve]

Many of these artificial reefs are submerged in water for the purpose of spawning fish and shellfish and raising fry, depending on the spawning season.
It is used to catch fish and eggs by raising them.

When used according to the season, the tape, which is a pseudo-seaweed, is separated one by one like natural seaweed and connected to a mooring.

By the way, in conventional artificial reefs, tape, which is a pseudo-seaweed, is separated into individual pieces like natural seaweed and tied to moorings, so they can be submerged or pulled up depending on the season. When fishing, the simulated seaweed gets tangled in a complicated way, especially in coves where the ocean currents are bald. In particular, it takes a lot of effort to assemble an artificial reef by tying pseudo rF# algae one by one to a mooring object. The purpose is to provide an artificial reef that is easy to assemble and handle.

[Structure of the invention]

That is, the artificial fish fl! according to the present invention! 22, as shown in the figure,
Stitch loops 11, 11', 11"11" in length direction W
The first yarn 12 formed by connecting ...... in a chain shape
and one loop 1 that continues in the longitudinal direction of the first yarn 12.
The loop 13 was formed together with another loop 11' of the first yarn 12 which was curved in a 0-shape and connected to the loop 13, and then passed through another loop 11' of the first yarn 12 that continued and protruded for a long time. The second yarn 15 forming the tufted collection axis 14 and the loops 11, 11', 11'', which continue in the length direction of the first yarn 12
-... changing direction in a left-right zigzag pattern and passing through them sequentially and continuing in the length direction W. A large number of stem axes 17, 17', 17゛1...- ... is 1
The third threads 16 of the stem axes 17, 17', 17''...-- are arranged in parallel with an interval a of 0 m5 or more.
・1G'・16''... zigzags from side to side and changes the left and right direction every time it continues for a length b of l〇- or more in the length direction W, and the adjacent stem axes 17・17"17"・It grows long to ... and the adjacent stem axes are 17, 17', 17''-
-...'s loops 11, 11''...... are passed through in a zigzag manner to the left and right, and the adjacent stem axes 17 and 17'
(17' and 17''), the third thread 16, 16', 16'' continues in a left and right zigzag every length b of 10 m or more.
The length and width < a - b partitioned in the length direction W between adjacent stem axes 17 and 17'(17' and 17'') by ...
) A net-like sea 4 having a large opening 18 of 10 or more irises
19 is moored to the mooring object 20.

These yarns 12, 15, and 16 are made of light material such as polyolefin resin or foamed resin with a specific gravity of 1 or less. For example, the first yarn is a polyester monofilament yarn (tengus) with a specific gravity of 1 or more. When used, a tape yarn of polypropylene resin having a specific gravity of 1 or less is used for the third yarn 16 that reinforces it and connects the 17'-17''(17'-17'') between the stem axes, and constitutes the collecting axis 14. Second thread 1
It is preferable to use a polyethylene resin tape yarn having a specific gravity of 1 or less for the net-like seaweed 19 so that the overall specific gravity of the seaweed net 19 is 1 or less.

〔Effect of the invention〕

In the seaweed 19 according to the present invention, the stem axes 17 are long and continuous with the collecting axes 14 protruding, forming a seaweed or kelp shape. Since they are connected to each other, they do not get entangled with each other due to ocean currents, etc., and the openings 18 formed by the connections are coarse, with a diameter of 10 cm or more in each direction, making it suitable for the growth of young fish.Assembling 17 of the artificial fish reef 22 Each axis 1 protruding from
4 is also engaged with one loop 11 of the first threads 12 connected in a chain, and is gripped by passing through the other loops 11'', so that it is difficult to fall off, and the stem shaft 17 is also wrapped in a large number of protruding collecting shafts 14. If the seaweed 19 is difficult to cut and has a total specific gravity of less than 1, when it is submerged in water 21 along with the moored material 20, each stem shaft 17 will extend into a long 7-point shape, like kelp or wakame that grow on the seabed, and the whole seaweed 19 will be An artificial reef 22 that spreads widely and is suitable for spawning of fish and shellfish is formed.

According to the present invention, the mallet can be easily handled during assembly, installation, removal, storage, etc. without the stem shaft 17 becoming entangled.
Durable artificial fish suitable for spawning and growing fry of shrimp, squid, octopus, etc., easy for fish and shellfish to catch @22
is obtained.

[Brief explanation of drawings]

FIG. 1 is a perspective view of the artificial reef according to the present invention submerged in water, and FIG. 2 is a partially enlarged front view of the artificial reef shown in FIG. 1.

Claims (2)

[Claims] (1) An artificial reef constructed by mooring a net-like seaweed 19 to a mooring object 20.
A first thread 12 formed by connecting . . . in a chain,
Another loop 1 of the first yarn 12 that is curved in a U-shape and connected to one loop 11 that continues in the longitudinal direction of the first yarn 12
1', the second thread 15 forms a loop 13, passes through another loop 11" of the first thread 12, and forms a long protruding tufted leaf axis 14, and the first thread 1
Loops 11, 11″, 11″, which continue in the length direction of 2.
A large number of stem axes 17, 17', 17'', . 10m
(b) Those stem axes 17, 17', 17''...
Each time the third threads 16, 16', 16'', etc. continue in a left-right zigzag pattern over a length b of 10 mm or more in the length direction W, the adjacent stem shafts 17 change the left-right direction.・1
Loops 11 of the stem axes 17, 17', 17'', etc. that extend long to 7', 17''...
・11', 11"...... are passed through in a zigzag pattern from left to right; (c) The adjacent stem axes 17 and 17'(17' and 17")
), the third yarn 16, 16', 16'' continues in a zigzag pattern on the left and right each time over a length of 10 mm or more.
..., the stem axes 17 and 17' (1
7′ and 17″) are partitioned in the length direction W of the stem axis 17,
7'') has a large opening 18 with vertical and horizontal (a and b) dimensions of 10 mm or more each. (2) The artificial reef according to claim 1, wherein the net-like seaweed 19 according to claim 1 has a specific gravity of 1 or less.