JP3288034B2 - Abalone culture equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aquaculture apparatus for cultivating abalone larvae.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 4, an abalone shellfish 10 is placed in an aquarium 9 and seawater is poured into a tank 11 or the like for cultivation, resulting in the following problems. .

The abalone mussel 10 is adsorbed on the wall surface of the aquarium 9, and the middle part of the aquarium 9 occupies a large area.
This was a dead space that did not contribute to aquaculture at all. Since the water tank 9 occupies the space, the aquaculture efficiency per unit volume is poor. Since the dead space of the water tank 9 needs to be filled with seawater, a large-capacity pump must be used. At the time of collecting the grown abalone, the abalone adsorbed deeply on the bottom of the wall of the water tank 9 is difficult to take out, and the workability is poor.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the problems described in the prior art.
It is an object of the present invention to provide an abalone cultivation apparatus that suppresses dead space as much as possible and has good workability in aquaculture and collection.

[0005]

An abalone cultivation apparatus according to the present invention has a notch in a longitudinal direction provided at an upper portion thereof, an injection port provided at one end of a cylindrical body whose both ends are closed, and A drain port is provided at the other end of the cylindrical body so that the seawater injected into the cylindrical body keeps substantially the same level, and a net is provided in a notch near the injection port, and a rearmost part is provided. A net is provided at the rear end of the notch, and an activity for purifying seawater in a space formed by the front end of the cylindrical body and the net provided in the notch near the inlet. A material is filled, and a lid is attached to the notch so as to be openable and closable.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the accompanying drawings. As shown in FIG. 1, a notch 1 in a longitudinal direction is provided at an upper portion and both ends are closed. Tubular body A
Is provided with an inlet 2 at one end.

The cylindrical body A is made of plastic such as vinyl or polyethylene, and is not particularly limited as long as it is a hollow body having a circular, elliptical or polygonal cross section. Both ends of the cylindrical body A are closed at least to a position slightly higher than the level L of the seawater 3 filled therein. Of course, the entire surface may be closed. There is no particular limitation on the closing method.

Seawater 3 injected into cylindrical body A from inlet 2
The drain port 4 is provided at the other end of the tubular body A so that the same level L is maintained.

In order to maintain the seawater 3 at substantially the same level L, for example, as shown in FIG. 2, an L-shaped hollow pipe a is used, and the upper end b is substantially the same as the level L of the seawater 3. Arrange so that the height. Then, the seawater 3 having the level L or higher flows into the hollow pipe a from the upper end b of the L-shaped hollow pipe a, is discharged from the drain port 4, and the level L of the seawater 3 can be kept substantially constant.

As shown in FIG. 2, a net 5 made of metal or plastic is disposed in the notch 1 near the injection port 2, and a similar net 5 'is provided at the rear end of the last notch 1. It is arranged.

In this case, the abalone mussel 10 cannot move beyond the nets 5 and 5 '.
Can be prevented from adhering to the inlet 2 and the drain 4 and blocking the inlet 2 and the drain 4.

As shown in FIG. 2, a space G formed by the front end of the cylindrical body A and the net 5 provided in the notch 1 near the inlet 2 is used to purify the seawater 3. An active material 6 such as charcoal or bamboo charcoal is filled, and a cover 7 is attached to the notch 1 so as to be openable and closable.

When the seawater 3 is not contaminated by red tide or the like, the space G is not filled with the activator 6, but when the seawater 3 is likely to be contaminated by red tide or the like,
The activator 6 is filled to prevent the larvae 10 from being killed.

When feeding bait such as kelp to the larva 10, the lid 7 is opened and the bait is supplied to the cylindrical body A from the notch 1. Except when feeding food, the lid 7 is closed.
As a result, the interior of the tubular body A becomes dark and night-like, and the nocturnal abalone is active and eats food well, so that growth is remarkably promoted.

The size of the ordinary cylindrical body A is about 4 m in length and about 20 cm in diameter, and the level L of the seawater 3 is kept at about 15 cm. 1 and 2, reference numeral 8 denotes an oxygen supply pipe for supplying oxygen to the cylindrical body A. When seawater temperature rises and oxygen concentration falls in summer, etc.,
Oxygen is supplied from the oxygen supply pipe 7.

As a practical device, as shown in FIG. 3, a plurality of cylindrical bodies A are arranged in a vertical direction at an interval that does not interfere with opening and closing of the lid 7, and each cylindrical body A A common water supply pipe 12 for supplying seawater and a common drainage pipe 13 for discharging seawater are connected.

[0016]

As described above, the present invention has the following advantages. Since there are few dead spaces, the aquaculture efficiency per unit volume is improved. Space required for aquaculture can be reduced. Work such as feeding and growing abalone is easy. Abalone mussels are always in the night environment, so they eat well and grow fast. Juvenile shellfish can be protected from seawater contamination by red tide and the like. Large-scale aquaculture is possible with a small space.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing an example of an embodiment.

FIG. 2 is a longitudinal sectional view in FIG.

FIG. 3 is a side view showing an example of a practical device.

FIG. 4 is a perspective view showing a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Notch 2 Injection port 3 Seawater 4 Drainage port 5, 5 'net 6 Activator 7 Lid 8 Oxygen supply pipe 9 Water tank 10 Abalone larvae 11 Hoses 12 Water pipe 13 Drain pipe A Cylindrical body L Seawater level G space part a L-shaped hollow pipe b Upper end of L-shaped hollow pipe

Claims (3)

(57) [Claims] 1. A horizontal cutout (1) is provided in an upper side wall located above when installed horizontally, and an inlet (2) is formed in one end of a tubular body (A) whose both ends are closed. ), And seawater (3) injected into the tubular body (A) from the inlet (2).
An abalone cultivation apparatus characterized in that a drain port (4) for the seawater (3) is provided at the other end of the tubular body (A) so as to maintain substantially the same level (L). 2. A net (5) is disposed in a notch (1) near an inlet (2) so as to close a cylindrical body (A), and a rear end of a rearmost notch (1) is provided. The abalone cultivation apparatus according to claim 1, wherein a net (5 ') is disposed in the portion so as to close the tubular body (A). 3. A net (5) arranged so as to close the cylindrical body (A) in the notch (1) near the tip end of the cylindrical body (A) and the inlet (2). The space (G) formed is filled with an active material (6) for purifying seawater, and a lid (7) is attached to the notch (1) so as to be openable and closable. Or the abalone cultivation apparatus according to claim 2.