JPS58190338A - Fish bank used in breeding and growing fish and shellfish - 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 a rod-shaped fish reef used for the propagation, collection, and cultivation of fish and shellfish, and more particularly, the present invention relates to a rod-shaped fish reef used for the propagation, collection, and cultivation of fish and shellfish, and more specifically, the present invention relates to a rod-shaped fish reef that is used for the propagation, collection, and cultivation of fish and shellfish. This invention relates to fish reefs that are used for the spawning, hatching, attachment, rearing, and propagation of juveniles (.), and are particularly suitable for traps and for raising and propagating crustaceans such as crabs.

Various artificial reefs, fisheries, and fish apartments have been proposed for the purpose of catching fish and shellfish.As the name suggests, these fish apartments are artificially created fishing grounds that are used exclusively for growing fish and shellfish. This is to increase fishing efficiency, and is generally called a fishing reef.

In addition, fish reefs for collection were originally made by simply using industrial waste such as old ships, confessional cars, and old tires, but recently, concrete, steel, stone, synthetic resin, etc. have been used to create box-shaped reefs. , assembled and molded into a lattice shape, etc. are used.

However, in recent years, due to problems such as the depletion of marine resources, we are not only collecting mature seafood, but also actively protecting and nurturing seafood eggs and floating juveniles.
There is a growing need for fish reefs to collect growing fish and shellfish.

However, while fish reefs for collecting fish are deposited on the seabed to a depth of more than 1000 m, reefs for breeding etc. are deposited at relatively shallow depths of about 7 to 1 Sm, where waves and ocean currents are rough and intense. It is necessary to create a habitat where they can easily take in the natural light and oxygen necessary for growth, and other special conditions are also required.

To explain in more detail, how to use it for propagation etc.

(1) The structure is suitable for the settlement and habitation of diatoms and other food organisms, and their settlement and settlement are quick; (g) The structure is suitable for spawning and establishment of young children; (3) ) Infants, etc., escape from foreign enemies, and their continued rest,
(d) Settlement and habitat of young children etc. must be in a place where sunlight can reach them.
Since it is carried out only in shallow seas (wave breaking zone) of approximately 73 meters, conditions must be met, such as being robust to withstand the external forces there, having a long service life, and being constructed to maintain stability. .

Therefore, reefs for collecting fish cannot be used as they are for protecting and raising young.

Furthermore, among fish and shellfish, unlike other fish and shellfish, the value of their eggs, young, etc. is determined, but fish reefs that meet these values have not been proposed. Not yet.

The present invention has been established in accordance with the above points, and is specifically suitable for the growth, preservation, and rearing of eggs and young larvae of seafood, and is particularly suitable for the growth of eggs and young larvae of seafood, and in particular, We propose a fish reef to which diatoms, microorganisms, etc. can attach well.

That is, the present invention is characterized in that a fibrous body is twisted into at least a portion of a twisted rod-shaped base material having rigidity, and the fibrous body is made to extend approximately in the radial direction of the twisted rod-shaped base material. It is a rod-shaped fish reef used for the multiplication, collection, and cultivation of fish and shellfish.

The present invention will be explained in detail below based on the F1 drawing.

First, FIG. 1 is a perspective view of a fish reef according to one embodiment of the present invention, and in FIG. 1, reference numeral 1 indicates a fish reef according to one embodiment of the present invention. It is composed of the rod-shaped base material 1Vi and the fibrous body J, and is twisted into at least a part of the fibrous body 3ii base material. That is, the rod-shaped base material is constructed by subjecting a fiber bundle, wire, or the like to a twisting process, and is constructed to have a predetermined rigidity. The fibrous bodies 3 are twisted mechanically or manually into this rod-shaped base material, but usually the length of the fibrous bodies 3 is cut in advance, and these fibrous bodies 3 are twisted at the same time when twisting wires or fiber bundles. be able to. In this way, twist the fiber body 3 to the rod-shaped base material,
When the fiber bodies 3 are made to extend approximately in the radial direction around the rod-shaped base material, seaweed and shellfish adhere well to each fiber body part, and in particular, diatoms and microorganisms adhere to the fiber bodies, and young larvae. It is possible to create an environment in which these animals can be well protected and nurtured.

To explain in more detail, when the fibrous bodies 3 are twisted during twisting of the rod-shaped base material λ, each fibrous body 3 is twisted and firmly held by the rod-shaped base material λ, so that the fibrous bodies 3 can be pulled out even in the sea. Kotonawa. In addition, the length of the fiber body 3 can be adjusted by canting and trapping before and after twisting, and it is sufficient to integrate the rod-shaped base material and the fiber body 3L/) by twisting using a conventional method. It is extremely easy to give birth quickly. Further, in the above, the fiber body 3 is made of a material that does not break or bend in the sea.

However, in general, it is preferable to select the fiber according to the properties of the fish and shellfish to be used as the fiber.

Namely, fish such as sea bream and flounder, and abalone.

In the case of shellfish such as turban shells, bivalves, and red molluscs, and clean skins such as sea urchins and sea cucumbers, flexible vegetable fibers from the family Asteraceae, Moraceae, and Malvaceae, and I from rabbits, sheep, cats, silk, etc.
vI physical fibers, polyester, polyamide, acrylic, vinyl yarn.

Relatively flexible synthetic fibers formed from polyolefin-based or polyethylene-based resins, endogenous synthetic fibers such as rayon, acetate, etc. are preferred. In addition, in the case of t4 L, , crabs, shrimps and other crustaceans, cuttlefish and other algae, squid and other cephalopods, rigid animal fa, fiber, pig% that can be obtained from the palm family, fern family, tree species, etc. Body hair of boars, horse hair,
Rigid animal rut fibers such as animal whiskers, comparatively 111+ synthetic fibers formed from resins such as polyester, boria-based, acrylic, vinyl, polyolefin, and polyacetal, carbon fiber, metal fiber, and glass. Inorganic fibers such as fibers and ceramic fibers are preferred.

Furthermore, it is preferable that the fiber degree also corresponds to the properties of the target fish and shellfish, and in the case of fish and clean skins, Fi, 100-co
oo de = -k X 3i -
, for algae, 100 to 10,000 denier x S to 10
0 m is preferable. In addition, the cross-sectional shape of the fibers may be any shape, but is usually round, round, star-shaped, or
Hollow shapes, polygonal shapes, and other regular shapes are preferred.

Moreover, any rod-shaped base material λ can be used as long as it is twisted and has a certain degree of rigidity.

Therefore, although a wire or the like is usually sufficient, the above-mentioned various fibers can also be used. However, it is preferable to use wire and anti-corrosion treatment. In addition, when it is composed of fibers, it can be of any shape, monofilament or multifilament, spun type, or slit type. , it is preferable to impart adhesion and shedding prevention properties to feeding organisms.

Moreover, it is preferable that the above-mentioned fish reef is usually not used alone, but is attached in plural to form a fish reef.

For example, Figure 1 is a front view of an example of a combination of a plurality of fish reefs, in which a pair of ropes q and S are stretched in the sea, and a plurality of fish reefs are installed between the ropes q and S. . When installed in this way, the upper and lower lobes 17.5 can provide some degree of rigidity to the base material, and
It can be installed in sandboxes, seaweed beds, rocky areas, etc., and can promote the attachment of diatoms and microorganisms.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a fish reef according to one embodiment of the present invention, and FIG. 2 is a front view of one way of using the fish reef according to one embodiment of the present invention. Symbol: Fish reef Ko: Rod-shaped base material 3: Fibrous body Da, S: Rope Patent applicant: Sakai Seni Kogyo Co., Ltd., agent and patent attorney Shimatsushita Yoshikatsu Attorney Fumio Soejima Diagram 1

Claims (1)

[Claims] Propagation of fish and shellfish, characterized in that a fibrous body is twisted into at least a part of a twisted rod-shaped base material having rigidity, and the fibrous body is made to extend substantially in the radial direction of the twisted rod-shaped base material. , rod-shaped fish reefs used for collection and cultivation.