JPH07163267A - Method for gathering live fish - Google Patents

Abstract

PURPOSE:To facilitate taking-out operation of live fishes without injuring these live fishes by approaching a specific moving unit to the inner wall, etc., of a box body and forming partition chambers capable of housing the live fishes, dispersing and housing the live fishes and efficiently gathering the live fishes. CONSTITUTION:A moving unit 2 capable of advanceably moving underwater in a hollow box body 1 in which water is put and the live fishes are stored is brought close to the inner wall of the box body or water surface 1a through a porous body 22 having plural through holes arranged so as to be able to oppose to this moving unit 2 and capable of passing the live fishes 1b in the face opposite to the moving unit 2 to form partition chambers capable of housing the live fishes 1b and, simultaneously, these live fishes 1b are dispersed and housed in these partition chambers in a stage forming these partition chambers to gather the live fishes 1b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of collecting live fish, which is used, for example, when collecting live fish in a place where it is easy to take out as a preliminary preparation when taking out live fish to be cultivated or cultivated in cages. To be done.

[0002]

2. Description of the Related Art Conventionally, a live fish is used by floating a bottomed box body formed of a net made of a flexible material on the water surface and exposing the opening to the air as shown in FIG. It is cultivated or cultivated in a live fish cage 51 or a pond 55 in which water is placed in a bottomed hollow body having an open top as shown in FIG.
The method of "collecting live fish in a place where it is easy to take out" is a method of preparing live fish from the fish cage 51 and pond 55 in advance, in which the side wall of the fish cage is raised by hand to bring the bottom of the fish cage close to the water surface. The method of collecting live fish on the surface of the water is officially used.
-136869, "Kakete," which collects live fish on the water surface by mechanically raising the bottom of the fish cage, and Japanese Patent Publication No. 56-
Japanese Patent Laid-Open No. 19206 discloses a "water tank for transporting and releasing live fish" in which a vertically movable net can be raised from the bottom surface of the water tank to collect live fish on the water surface. On the other hand, in the latter, as shown in FIG. 10, a method is commonly used in which a mover 52 made of a flat net is placed in a pond and moved in the direction of the arrow to collect live fish at the edge of the pond.

[0003]

However, the above-mentioned conventional techniques have the following drawbacks. The former narrows the swimming space in the depth direction below the surface of the water, and the latter narrows the swimming space in the horizontal direction to collect live fish on the surface of the water or at the edge of the pond, but both are stored in one swimming space. Or, because all live fish stored for aquaculture are stored, live fish is taken out in large cages and ponds where the swimming space (although it is narrowed) is much larger than the size of the fishing net as a tool for catching fish. It has the drawback that it requires a lot of time and effort to work.

Furthermore, even when only specific live fish are taken out of the stored live fish, all the live fish being stored are gathered in one narrow swimming space, so that all the live fish are kept in a narrow swimming space. There is a fatal defect that the life of all live fish is shortened due to damage to fish or peeling of scales and mucous membranes due to contact between live fish or contact between live fish and cage or pond wall. However, there is a drawback that it takes a lot of time and effort to take out only a specific live fish from many live fish.

[0005] At this time, all the live fish in storage are trying to escape from the fishing net, which is aimed at a specific live fish, and a panic condition occurs, causing a escaping action and contact between live fish or contact between live fish and a cage or pond wall. There is a possibility that the fish may be damaged by contact with the fish, and if it is damaged, the farmed fish will not survive for a long time, and the total amount of scales and mucous membranes that peel off due to contact will increase and this will clog the gill of the fish and kill the fish. There are drawbacks.

The present invention has been made to solve the above-mentioned conventional problems, and limits the swimming range of live fish during storage to facilitate the work of taking out live fish and to form a plurality of compartments. It is an object of the present invention to provide a method for collecting live fish that dispersively stores live fish stored in this compartment and does not damage live fish that need not be taken out as much as possible.

[0007]

The first method for collecting live fish according to the present invention is to move a movable body that is movable in and out of water in a hollow box body in which live fish are stored. The living body is made to come close to the inner wall of the box or the water surface through a porous body having a plurality of through holes through which the live fish can pass, on the surface facing the mover. The present invention is characterized in that a compartment for accommodating fish is formed and the living fish are dispersed and accommodated in the compartment during the process of forming the compartment.

In the second method of collecting live fish, a movable body that can move forward and backward in water in a hollow box body in which water is stored and live fish is stored, and the movable body is arranged so as to face the movable body. By forming a compartment for accommodating the live fish and forming the compartment by bringing a porous body having a plurality of through-holes through which the live fish can pass close to the surface facing the mover. In the process, the living fish are dispersed and stored in this compartment.

[0009]

In the present invention, for example, the bottom plate is a bottomed box whose top side is opened and which is substantially parallel to the water surface on the bottom of the water tank in which water is placed and which is slidable by sliding contact with the inner wall of the water tank. And a plurality of partition plates that are erected on the upper surface of the bottom plate and are appropriately separated from each other, the moving element is sunk to form a swimming space between the water surface and the moving element, and live fish swim in this space. Out,
When the mover is floated by an appropriate method and the upper end of the partition plate is exposed to the water surface, a plurality of small chambers are formed between the bottom plate and the water surface via the partition plate, as described above. While the mover floats up, the live fish are dispersed and accommodated in these small chambers to collect the live fish in the small chambers.

[0010]

The preferred embodiments of the method of collecting live fish according to the present invention will be described below with reference to the drawings, but the present invention is not limited thereto.

[0011]

[Embodiment 1] In FIG. 1, pulleys 6 and 6 are rotatably attached to a central portion of a bottom surface and a bottom portion of a side wall of a water tank 1 which is a bottomed box having an open top, and the water tank 1
Pulley 7 is attached to the tip of a pole 8 protruding from the upper surface of the opening edge of
Is rotatably attached. Further, a boss 9a is horizontally projected on the outer surface of the edge of the opening, and the boss 9a is formed.
The boss 9 is provided on the outer surface of the water tank 1 while being separated downward by a predetermined distance.
b is projected horizontally.

A water tank 1 is filled with a required amount of seawater, and a wooden mover 2 is loosely fitted so as to be movable back and forth. A partition plate 22 forming a porous body is erected on the upper surface of the mover 2 with a gap approximately the same as the length of the live fish so as to be spaced (integration of the mover and the porous body). The center part of the lower surface of the is connected to the other end of the string 10 to which the hook 10a is connected at one end, the string 10 is engaged with the pulleys 6, 6 and 7 and the hook 10a is hooked to the boss 9b. As a result, the mover 2 is submerged at the bottom of the aquarium 1 in the sea. And
A plurality of live fish 1b are allowed to swim between the mover 2 and the water surface 1a.

The operation of the cage constructed as described above will be explained. The hook 10a is removed from the boss 9b and the boss 9a is removed.
, The moving element 2 floats by the buoyant force by the distance between the boss 9b and the boss 9a, the upper end of the partition plate 22 is exposed to the water surface 1a, and the partition plate 22 is placed between the moving element 2 and the water surface 1a.
A plurality of small chambers are formed by being separated from each other through, and the live fish 1b are dispersed in the process of forming these small chambers and enter the small chambers to be collected on the water surface side.

Thus, since the live fish 1b housed in the small chamber has a narrow swimming range, for example, even a fishing net capable of accommodating about one live fish can be easily caught from this small chamber.
Also, when taking out live fish, only live fish in the small chamber where the fishing net is put will panic, but live fish in other small chambers will not panic, so there is no chance of being injured. And after taking out the required amount of live fish,
The hook 10a is hooked again on the boss 9b to sink the moving element 2 to the bottom of the water tank 1 in preparation for the next removal.

[0015]

[Embodiment 2] FIG. 2 shows a second embodiment of a method for collecting live fish according to the present invention. In addition, the first
The same parts as those shown in FIG. 1 used in the description of the embodiments are designated by the same reference numerals, and the duplicated description will be omitted here.

The feature of the second embodiment is that a lid 11 as a porous body having a proper number of holes 11a penetrating the opening of a water tank 1 of a cage similar to the first embodiment is provided. The point is that the lower surface of the lid 11 is fitted and sinked below a required amount of seawater, and at least one live fish cultivated in the aquarium 1 can be accommodated in the depressed hole 11a.
The lower surface of the lid 11 is preferably a horizontal surface or a concave surface, and the upper surface of the mover 2 is preferably substantially parallel to the lower surface of the lid 11.

The operation of the second embodiment is similar to that of the first embodiment. When the hook 10a is removed from the boss 9b, the moving element 2 floats by its buoyancy until it contacts the lower surface of the lid 11, and Similar to the first embodiment, live fish are dispersed and enter the small chamber formed by the hole 11a and the mover 2 and are collected on the water surface side. The effect is also similar to that of the first embodiment. In this case, the boss 9a may be omitted.

Further, in this embodiment, the lid 11 as a porous body is used.
Although the small chamber is formed by the hole 11a penetrating through and the moving element 2, the invention is not limited to this. That is, a bridge is built inside the opening edge of the water tank 1, and the upper tree edge projects from the water surface by a required amount, and the lower tree edge sinks by a required amount below the water surface. And a mover 2 in which a plurality of through holes are formed by arranging in a matrix or in a grid pattern.
It is also possible to form a small chamber with and to accommodate an appropriate number of live fish in this small chamber. At this time, the partition plate may be attachable to and detachable from the water tank 1, or may be configured to be movable back and forth in the horizontal direction.

[0019]

[Embodiment 3] FIG. 3 shows a third embodiment of a method for collecting live fish according to the present invention. The same parts as those shown in FIGS. 1 and 2 used in the description of the above embodiment are designated by the same reference numerals, and the duplicated description is omitted here.

The feature of the third embodiment is that a moving element 2 which is similar in size to the horizontal cross section of the water tank 1 is submerged in the bottom of the water tank 1, and the moving element 2 has a lattice shape. The plate body 2b and a rubber tube 2a having a rectangular cross section are connected to and communicate with each other so as to form a substantially "Japanese" frame, and the lower side of the cross section of the tube 2a is located below. The plate 2b is integrally connected to the top surface of the plate 2b (the movable element and the porous body are integrated), and the tube 2a and the compressed air supply device 5 arranged outside the water tank 1 are provided. The point is that they are communicated with each other through a pipe 3 made of flexible rubber and a valve 4.

The operation of this embodiment is the same as that of the above embodiment, and the compressed air supply device 5 is driven to drive the valve 4 and the pipe 3.
When compressed air is supplied to the tube 2a through the tube 2a, the tube 2a expands, and the tube 2a and the plate 2b form two small chambers on the top side and the mover 2 floats. However, when the distance between the upper surface of the plate body 2b and the water surface 1a becomes such a depth that live fish can be accommodated, the levitation of the mover is stopped by appropriate means, and an arbitrary number of live fish enter each of these two chambers and the Gathered to the side. As a result, the same effect as the second embodiment can be obtained.

After the required amount of live fish has been taken out, the valve 4
And the tube 2a via the pipe 3 and the valve 4
When the compressed air is removed from the moving body 2, the moving body 2 sinks to the bottom of the water tank 1 due to the weight of the plate body 2b and is prepared for the next extraction.

The frame body as a porous body attached to the upper surface of the mover 2 may be a rigid body, and like the above embodiment, a suitable number of small chambers are formed on the upper surface of the mover 2 so that the required number of live fish can be accommodated. be able to. In this case, the mover 2 may be floated / sunk by an appropriate method.

[0024]

Fourth Embodiment FIGS. 4 to 5 show a fourth embodiment of a method for collecting live fish according to the present invention. The same parts as those shown in FIG. 1 used in the description of the above embodiment are designated by the same reference numerals, and the duplicated description is omitted here.

The feature of the fourth embodiment is that a required amount of water is put in a pond 15 which is a bottomed box whose upper side is open, and a movable body 2 moves freely back and forth. A plurality of partition plates 22 that form a porous body are provided on the right side surface of the mover 2 by being fitted in close proximity to the inner wall surface on the left side with a gap appropriately larger than the body length of the live fish raised in this pond. It is at a point that is separated from each other and stands upright in parallel (integration of the mover and the porous body). The live fish can swim between the moving piece 2 and the right inner wall surface facing the moving piece 2.

According to the operation of this embodiment, when the moving element 2 is moved toward the right inner wall surface by an appropriate means in a state of being substantially parallel to the left inner wall surface which has been in close proximity, finally the moving element 2 and the partition plate 2 are moved.
2 and the right inner wall surface form a plurality of small chambers that are open on the water surface side, and an arbitrary number of live fish enter each of these small chambers and are collected on the right inner wall surface side. As a result, the same effect as that of the above embodiment can be obtained.

In the above-described embodiment, the partition plates 22 are appropriately spaced apart and set up in parallel to form a plurality of small chambers open on the water surface side, but the present invention is not limited to this.
That is, the partition plates may be erected in a grid pattern so that the openings of the porous body face the inner wall surface of the pond. Thus, when the mover 2 is moved toward the right inner wall surface in the same manner as described above, a plurality of small chambers on the water surface side are opened by the mover 2, the partition plate 22, and the right inner wall surface, the mover 2, the partition plate 22, and the right side. A plurality of small chambers that are closed by the inner wall surface are formed, and an arbitrary number of live fish enter each of these small chambers and are collected on the right inner wall surface side. At this time, in order to take out the live fish that have entered the plurality of small chambers closed by the mover 2, the partition plate 22 and the right inner wall surface, openable and closable holes communicating with these small chambers are provided on the wall of the mover or the pond. It should be taken out through the hole.

[0028]

[Embodiment 5] FIG. 6 shows an embodiment of a method for collecting live fish according to claim 2 of the present invention. The same parts as those shown in FIGS. 4 to 5 used in the description of the above embodiment are designated by the same reference numerals, and the duplicated description will be omitted here.

The feature of this embodiment is that the pond 15 which is a box with a bottom and which is open on the top side and contains a required amount of water has a movable body and a plurality of partitions used in the fourth embodiment. A porous body 16 composed of a plate is loosely fitted so that the right side opening formed of a partition plate faces the right inner wall surface facing the right side inner wall surface and is disposed in proximity to the left inner wall surface, and also has a flat plate shape. The moving element 2 is loosely fitted so that it can be moved back and forth, and is arranged close to the right inner wall surface. It should be noted that the live fish can swim between the porous body 16 and the mover 2 arranged so as to face the porous body 16.

The operation of this embodiment is such that when the porous body 16 and the mover 2 are brought close to each other as shown by the chain double-dashed line in the figure, a plurality of small chambers whose water surface side is open are formed, and an arbitrary number of small chambers are formed in each of these small chambers. Since live fish enter, live fish can be gathered in the small room. As a result, the same effect as that of the above embodiment can be obtained.

As shown in FIG. 7, the porous body is a standing plate 1.
The bottom plate 18 has a bottom plate 18a horizontally extending orthogonally to the standing plate 18 and a plurality of partition plates 19 standing upright in parallel in the extending direction of the bottom plate 18a of the standing plate 18 at appropriate intervals. The body 17 also has the same operation and effect as those of the above embodiment.

Further, as shown in FIG. 8, a suitable number of partition plates 22 forming a porous body may be allowed to advance and retreat on the surface of the moving element 2. As a result, the size of the small chamber can be freely changed, and the swimming range of live fish can be freely limited.
The partition plate 22 may be moved back and forth during the movement of the moving element 2, or may be moved back and forth after the movement.

Further, although the water tank and the pond are used in the first to fifth embodiments, the present invention is not limited to this. That is, it may be a hollow box body made of net and having an open top. In this case, it is sufficient to take measures so that the opening does not sink into the water.

[0034]

As described above, according to the method of collecting live fish of the present invention, the swimming range of live fish can be freely restricted only when the live fish are taken out, and the live fish are dispersed in a plurality of small chambers. Since it is possible to collect the fish in a place where it can be easily taken out, not only can live fish be taken out very easily, but also the effect of not damaging live fish in a small room in which a take-out tool such as a fishing net is not placed. The effect of is extremely large.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of essential parts showing a first embodiment of a method for collecting live fish according to the present invention.

FIG. 2 is a cross-sectional view of essential parts showing a second embodiment of the method of collecting live fish according to the present invention.

FIG. 3 is a cross-sectional view of essential parts showing a third embodiment of the method for collecting live fish according to the present invention.

FIG. 4 is a plan view showing a fourth embodiment of the method for collecting live fish of the present invention.

5 is a cross-sectional view of the main parts of FIG.

FIG. 6 is a cross-sectional view of essential parts showing a fifth embodiment of the method for collecting live fish of the present invention.

FIG. 7 is a perspective view showing an embodiment example of a porous body that constitutes the present invention.

FIG. 8 is a cross-sectional view of essential parts of an embodiment example in which a mover and a porous body which constitute the present invention are integrated.

FIG. 9 is a cross-sectional view of essential parts showing a conventional method for raising live fish cages to collect live fish on the water surface.

FIG. 10 is a sectional view of an essential part showing a conventional method for collecting live fish in a pond.

[Explanation of symbols]

1 aquarium 1a sea level
1b live fish 2 mover 2a tube
2b plate 3 pipe 4 valve 5 compressed air supply device
6,7 Pulley 8 Poles 9a, 9b Boss
10 String 10a Hook 11 Lid
11a hole 15 pond 16 and 17 porous body
19,22 Partition plate 51 Ikeji 52 Mover
55 pond

Claims (2)

[Claims] 1. A mover that is movable in and out of water inside a hollow box in which water is stored and live fish is stored. The mover is arranged so as to face the mover, and the mover faces the mover. By forming a compartment for accommodating the live fish and forming the compartment by approaching the inner wall or the water surface of the box through a porous body having a plurality of through holes through which the live fish can pass. A method of assembling live fish, characterized in that the living fish are dispersed and stored in this compartment in the process. 2. A mover that is movable in and out of water inside a hollow box in which live fish is stored and water is stored, and a movable body is provided so as to be opposed to the mover and a surface facing the mover is provided. By forming a compartment for accommodating the live fish by adjoining a porous body having a plurality of through holes through which the live fish can pass, and in the process of forming the compartment, A method for gathering live fish characterized by being distributed and stored indoors