JPH02215331A - Fresh fish storage method - Google Patents

Abstract

PURPOSE:To provide a method intended to store fresh fish for a long period without injuring, so designed that an air balloon with its lower part opened is installed in a water tank so that the lower edges are located underwater and oxygen gas is encapsulated into the balloon and gradually dissolved in water. CONSTITUTION:An air balloon B consisting of an airtight flexible plastic sheet, with both sides of the closed top 1 provided with sidewalls 2, both ends with and walls 3, 4 and corner parts fixed with corner members 5 and the respective lower edges of the end walls 3, 4 with edge members 8, 9, is put into a water tank A so that the level of the top 1 becomes nearly equal to that of the water surface and the lower edges are located underwater, and fixed by making a sucking disk 7 fitted at the lower edge of the end wall 8 adsorb on the inner wall of the tank A. Thence, a feed pipe 13 connected to an oxygen cylinder 12 is inserted via a port 10 provided on the end wall 4 and oxygen gas is fed into the space between the top 1 and the water surface 11 within the air balloon B to form an oxygen layer 14 followed by putting fresh fish 15 into the balloon B. And the water surface 11 and the oxygen layer 14 are brought into mutual contact through the vibration in carrying this tank A, thus effecting gradual dissolution of the oxygen into water.

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention provides a method for storing or transporting live fish in an aquarium without using a bubble generator or the like (supplying oxygen into the water to weaken the live fish). (Relates to methods of storage or transportation.)

<Conventional technology> The conventional method of transporting live fish as live bait used in the bait fishing method for sweetfish is to place them in water in an aquarium such as a can, and to keep them constantly submerged in the water by inserting a bubble generator using a battery-powered pump. There have been methods such as introducing air bubbles to dissolve the oxygen in the bubbles, or adding a solid oxygen generating agent to generate oxygen and dissolving the oxygen in the water.

<Problem that the invention seeks to solve> Conventional methods such as those described above generate a small amount of oxygen.

Therefore, since the amount of oxygen dissolved in the water is small, there is a problem in that live fish become weak due to lack of oxygen.

Additionally, since those that use a pump suck in outside air, there is also the problem that the water becomes cloudy.

The present invention provides a new method for preserving live fish that solves the problems of the conventional methods as described above.

Means for Solving the Problems> In order to achieve the above object, the present invention provides an air bladder made of an airtight flexible plastic sheet with a closed top and an open bottom in an aquarium, the top of which is located near the water surface. Position to,
This method of preserving live fish is characterized by attaching the fish so that its lower edge is underwater, sealing oxygen in the air bladder, and gradually melting the oxygen.

In some cases, a part of the air j is adsorbed and fixed on a part of the inner surface of the peripheral wall of the water (π) using a suction cup.

<Embodiments> Hereinafter, embodiments of the present invention will be described based on FIGS. 1 to 3 of the accompanying drawings.

A is the aquarium and B is the air sac. The air fiB is made of a flexible and airtight sheet such as vinyl, and has side walls 2 on both sides of the top 1, and end walls 3.4 at both ends of the top 10. Each wall 2.3.4 is integrally connected in an airtight manner.

In addition, corner members 5 made of hard plastic or the like are fixed to the corners to prevent the shape from collapsing.

Furthermore, one end wall 3 extends downward longer than the other wall, and a rim material 6 made of hard plastic or the like is fixed to the lower edge over the entire width, and a suction material made of rubber or the like is attached to the outside of this part. 1117 is provided.

Moreover, the lower edges of both side walls 2 and the other end wall 4 also have the same ends! ,
! Edge material 8.9 made of hard plastic, etc. as in 3.
be fixed across the entire width.

A part of the end wall 4 has an insertion hole lO for the acid supply vibrator.
will be established. The above-mentioned air 9B is placed in a water tank A filled with water as shown in FIG. 2, but at the same time, as shown in FIG. The suction cup 7 is attached to the inner wall of the water tff A.

In the embodiment, the other end wall 4 is in a floating state, but a suction cup may also be provided at the lower end of this end wall 4 and fixed to the side wall of the water (C).

After installing the Qi IB in the aquarium A as described above, as shown in FIG.
3 is inserted into the insertion hole 10 and oxygen is blown into the water in the air ffB, some of it dissolves into the water, but most of it becomes air bubbles and rises through the water, filling the space between the water surface opening and the top part 1. It accumulates in

For this reason, the top 1 bulges and increases in volume, as shown by the chain line in FIG. 1, and a sufficient layer 14 of oxygen is created.

A desired live fish 15 such as sweetfish is made to swim in the air fiB in which a sufficient oxygen layer 14 is formed above as described above.

Such aquarium A is transported by appropriate means, but at this time the water in aquarium A vibrates and the water surface hits, increasing contact with oxygen and gradually dissolving oxygen in the water (so that the water The solution always contains a suitable amount of oxygen.

<Effects of the Invention> As described above, this invention attaches a flexible plastic air bladder to an aquarium, and blows oxygen into the air bladder to form an oxygen layer on the upper part of the air bladder. It has the following effects.

That is, in this invention, sufficient oxygen is supplied inside the air bladder inserted into the water, so that even if the water is transported for a long time, a suitable amount of oxygen is always dissolved in the water.

Therefore, live fish in the water are always lively and suitable as live bait.

In addition, live fish swim around in the water during transport, but since the air sacs are made of flexible plastic, there is no risk of injury even if live fish hit the air sacs.

Furthermore, unlike air bubble generators, it does not suck in outside air, so water does not leak.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view of the same, and FIG. 3 is an enlarged perspective view of an air bladder used in the same.

Claims (2)

[Claims] (1) An air bladder made of an airtight flexible plastic sheet with a closed top and an open bottom is installed in the aquarium so that the top is located near the water surface and the lower edge is underwater, and inside the air bladder 1. A method for preserving live fish, characterized by enclosing oxygen in water and gradually melting the oxygen into water. (2) The method for preserving live fish according to claim (1), wherein a part of the peripheral wall of the air sac is fixed by adsorption to a part of the inner surface of the peripheral wall of the aquarium using a suction cup.