JPH06335331A - Method for culturing laver - Google Patents

Abstract

PURPOSE:To provide a method capable of culturing high-quality laver at a low cost using respective small but effective amounts of medicinal substances for laver injury diseases and nutrients. CONSTITUTION:A pool 1 floating on the sea is made by forming an air float 2 on the outer periphery of a flexible sheet 3, being moored, in a vertically movable way, to poles 4 fixedly stood into the bottom of the sea 17. Seawater 5 is then stored in this pool 1 and a laver net 6 is put in this pool 1 followed by giving the seawater 5 necessary nutrients and medicinal substances, thus culturing laver.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a method for cultivating seaweed.

[0002]

2. Description of the Related Art Conventionally, seaweed is cultivated in a seawater tank or the like, and a seaweed species that has grown to a certain extent is attached to the seaweed net, and the seaweed net is moored in a rod standing on the seabed in the ocean.

[0003]

In this conventional method for cultivating seaweed, when seaweed became sick, a drug against seaweed disease was administered into the sea, but it was diluted with a large amount of seawater. I couldn't expect a sufficient medicinal effect. In addition, the use of a large amount leads to high cost. Therefore, the nori net was stretched over the surface of the sea, and the nori net and nori were exposed to sunlight and air to sterilize and suppress bacteria.
However, in this method, the seaweed itself was also dried and damaged, which deteriorated the quality. Further, even when a nutrient is applied to seaweed, since it can be diluted with a large amount of seawater in the ocean, a large amount of the nutrient has to be administered, and the effect of the nutrient is thin and expensive. The problem to be solved by the present invention is to solve these conventional problems, to effectively administer a small amount of a drug against a disease, to effectively administer a small amount of a nutritional supplement, and to use seaweed at a low cost and in good condition. It is intended to provide a method for cultivating seaweed which can be grown in high yield to obtain high quality seaweed.

[0004]

[Means for Solving the Problems] The gist of the present invention, which has solved the above problems, is as follows: 1) A floating pool above the sea is moored so that it can move up and down, seawater is stored in the pool, and nori seaweed is temporarily stored in the pool. Seaweed cultivation method characterized by aquaculture for a certain period or for a certain period of time 2) The pool floated above the sea surface is moored freely, and the pool is floated above the sea surface, and seawater is stored in the pool. Seaweed cultivation method in which the seaweed is cultivated with the seaweed, and the pool is temporarily submerged under the surface of the sea so that the seawater can be cultivated even in the ocean. 3) The pool formed from a flexible sheet and an air float attached to the periphery thereof ) Or 2) The method for cultivating seaweed 4) The method for cultivating seaweed according to any one of 1) to 3) in which seawater stored in a pool is administered with a nutrient for laver 5) Harmful to seawater stored in the pool The method for cultivating seaweed according to any one of 1) to 4) above, wherein a fungicide against a bacterium, a pathogen inhibiting agent or a disease preventive agent is administered.

[0005]

In the present invention, seawater is stored in a pool floating on the surface of the sea temporarily or for a long time, and seaweed is cultivated in this pool. Therefore, the amount of seawater in the pool is limited if the seawater in this pool is administered with drugs, disease suppressants, nutrients, etc. against seaweed disease, so even if the amount of the drug or nutrient is small, it will be a great effect. Can be obtained. Even if the sea level changes due to the tide, the pool can move up and down, so you can always float on the sea surface and grow seaweed in the pool. Even if the seawater of the ocean is drawn and the bottom of the sea is exposed, the pool is placed on the bottom of the sea and the seawater can be stored inside, so the seaweed will not dry.

Furthermore, if the pool can be submerged in the seabed, the seaweed can be cultivated either in the pool or in the ocean,
When the aquaculture in the ocean is more advantageous than the aquaculture in the pool, the pool can be submerged to allow conventional aquaculture, and the pool water can be exchanged with the ocean water. If the surface is raised, it will be easy to exchange seawater in the pool. When the condition of ocean water is poor, or when aquaculture in the pool is advantageous, the pool is floated and switched to aquaculture in the pool. If the drug or nutrient is administered to the seawater in the pool as described above, it can act effectively even in a small amount, and high-quality seaweed with little disease and good growth can be obtained.

If the pool is formed of a flexible sheet and a float, it can be manufactured at a low cost, and if the air of the air float is eliminated, it will easily settle into the sea, and if the air is introduced into the float through a tube, it will float easily. And can be handled easily.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view showing a pool of the present embodiment, FIG. 2 is an explanatory view showing a state of aquaculture on the sea surface of the embodiment, and FIG. 3 is an explanatory diagram showing a state of aquaculture after sinking to the seabed of the embodiment. 4 is an explanatory view of a state where the tide of the embodiment is pulled and the seabed is exposed, and FIG. 5 is a plan view of the embodiment.

In the figure, 1 is a pool having a rectangular planar shape of 1.8 m × 36 m, 2 is an air float provided around the outer periphery of a flexible sheet 3 forming the pool 1 in a large square shape,
3 is a flexible sheet, 4 is a rod erected on the bottom of the sea, 5 is seawater stored in the pool 1, 6 is seaweed net for adhering and culturing seaweed, and 7 is the seaweed net on the rod 4 and above and below A mooring rope movably movably, 8 is a locking hole provided at four corners of the air float 2, 9 is a vertically movable ring inserted in the rod 4, 10 is a locking hole of the ring and the air float 2 A mooring rope for connecting with, an air tube 11 for injecting and discharging the air of the air float 2, an air injection / exhaust valve 12 provided at the tip of the air tube, and an air injection / exhaust valve 13 for constantly floating the air injection / exhaust valve above the sea surface. A small float, 14 is a weight for preventing the flexible sheet 3 of the pool 1 from floating and swaying, 15 is a hose that supplies nutrients and drugs against illness to the pool 1 floating above the sea surface, and 16 is a liquid of the hose Discharge hole, 17 is seabed, 18
Is the sea level.

In this embodiment, the pool 1 is 1.8 m × 36.
It has an area of about m and is formed by providing the air float 2 around the flexible sheet 3. A large number of pools 1 are arranged on the surface of the sea, and each pool 1 is vertically movably moored via a mooring rope 7 and a ring 9 to a rod 4 standing on the seabed.
The air of the air float 2 is injected by the small float 13 from the air injection / exhaust valve 12 that is always floating above the sea, so that buoyancy can be obtained and the air can be floated above the sea surface (see FIG. 1). When air is released from the air injection / exhaust valve 12, the air float 2 loses buoyancy and the pool 1 sinks into the sea due to its own weight and weight 14 (see FIG. 3).

The pool 1 is floated on the sea, the seawater 5 is stored in the pool 1, and the seaweed net 6 is put in the pool to culture the seaweed (see FIGS. 1 and 2). Next, when it is desired to administer a nutrient or a drug against illness, a liquid containing these drugs is sent from the hose 15 and the liquid is supplied into the pool 1 from the liquid discharge hole 16 of the hose 15 (FIG. 1, FIG. 5). or,
Since it is administered to the limited amount of seawater 5 in this pool 1, it can be performed efficiently, and the effects of medicinal and nutritional agents are extremely effective and can be achieved in small amounts.

Further, the pool 1 is floated above the sea not only in the case of administration of the above-mentioned nutrients and disease drugs, but also in the case where the culture sea area is exposed to strong exposure to sunlight or temperature. It is effective when the seaweed net is dried because the seabed is exposed when the tide is large and the seabed is exposed in a bad condition such as red tide. If the pool 1 is floated above the sea, the seawater 5 in the pool 1 will not remain and the seaweed net 6 will not be dried even if the seabed is exposed due to the tide (see FIG. 4).

Next, when the seaweed is cultivated in the ocean, when the seawater in the pool 1 is exchanged, when the waves are strong and it is desired to avoid shaking, and when the seaweed net 6 is collected, the air injection / exhaust valve 12 is used.
The air of the air float 2 is evacuated, and the pool 1 is submerged or submerged in the ocean at a required depth for aquaculture (see FIG. 3).

The time and time for aquaculture of the pool on the surface of the sea are appropriately determined depending on the condition of the seaweed, the condition of the ocean, the weather and the condition of disease.

Incidentally, the mooring of the pool / nori net of the present invention may be a raft or other mooring floating body or a fixed structure regardless of the rod of this embodiment, and the nori net may be moored to the pool.

[0016]

As described above, according to the present invention, a small amount of nutritional or disease drug can be administered by culturing nori culture temporarily or for a certain period of time in seawater in a pool floating on the sea surface. Can be performed effectively, and the cost can be greatly reduced. In addition, in addition to the above, it is possible to improve the growth of seaweed and harvest good quality seaweed by being able to cultivate the seaweed at an advantageous time depending on the state of seaweed and the state of the sea. it can.

[Brief description of drawings]

FIG. 1 is a perspective view showing a pool of this embodiment.

FIG. 2 is an explanatory view showing a state of aquaculture on the sea surface in the example.

FIG. 3 is an explanatory view showing a state of aquaculture with sedimentation on the seabed according to the embodiment.

FIG. 4 is an explanatory diagram of a state in which the seabed is exposed due to the tide of Example.

FIG. 5 is a plan view of the embodiment.

[Explanation of symbols]

 1 pool 2 air float 3 flexible sheet 4 rod 5 seawater 6 laver net 7 mooring rope 8 locking hole 9 ring 10 mooring rope 11 air tube 12 air injection / exhaust valve 13 small float 14 weight 15 hose 16 liquid discharge hole 17 seabed 18 sea level

Claims (5)

[Claims] 1. A method for cultivating seaweed, wherein a pool floating above the sea is moored so that it can move up and down, seawater is stored in the pool, and seaweed is cultivated in the pool temporarily or for a certain period of time. 2. A mooring pool floating above the sea surface is floatable and sinkable, a pool is floated above the sea surface, seawater is stored in the pool, seaweed is cultivated in the pool, and the pool is temporarily held. A seaweed aquaculture method in which the seaweed is submerged under the sea so that it can be cultured in the ocean. 3. The method for cultivating seaweed according to claim 1, wherein the pool is formed of a flexible sheet and an air float attached to the periphery thereof. 4. The method for cultivating seaweed according to any one of claims 1 to 3, wherein a nutrient for seaweed is administered to the seawater stored in the pool. 5. The method for cultivating seaweed according to any one of claims 1 to 4, wherein a bactericidal agent against a bacterium harmful to seaweed, a pathogen-inhibiting agent or a disease preventive agent is administered to seawater stored in the pool.