KR20160146339A

KR20160146339A - Apparatus for managing red tide in fish cage

Info

Publication number: KR20160146339A
Application number: KR1020150083464A
Authority: KR
Inventors: 김태진
Original assignee: 지랜드 주식회사
Priority date: 2015-06-12
Filing date: 2015-06-12
Publication date: 2016-12-21

Abstract

The present invention relates to a fish farming apparatus for managing red tide. According to the present invention, the fish farming apparatus for managing red tide comprises: a water tank structure restricting a space for a fish farming operation; a water tank barrier disposed while covering a lower side and a lateral side of the water tank structure; a plurality of flow paths formed in the water tank barrier so as to creating a path for water flow in and out from the fish farm; and a plurality of red tide blocking filters disposed on each of the flow paths so as to prevent red tide organisms from entering into the fish farm.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a red-

The present invention relates to a farm equipment, and more particularly to a farm equipment suitable for relieving red tide in a coastal area such as the sea or on a land (caged farm or land farm).

In recent years, there has been a frequent occurrence of harmful red tide in the sea due to the eutrophication of the coast caused by environmental pollution, and the red tide that is generated in this way causes great economic damage to a farm (a caged farm or a land farm). Here, eutrophication reduces the species diversity of phytoplankton, causing water pollution by pollutants, further exacerbating water quality.

For example, when red tide occurs, the viscosity of seawater is relatively high due to the mucous substances secreted by phytoplankton, which makes fish swimming difficult. As a result, phytoplankton blocks the gills of fish to suffocate fish , And paralysis of the nerves causes a large amount of fish to be killed.

In addition, since microorganisms consume a large amount of oxygen dissolved in seawater in order to decompose phytoplankton, microorganisms have a serious problem that the dissolved oxygen in the seawater becomes insufficient, resulting in mass death due to respiratory disorder of the fish.

Especially, in the case of Korea, starting from the middle of July to mid August, when the following conditions are met, the following conditions start from Wando, Jeonnam and Narodo. After Yeosu, Tongyoung, Jinhae and Masan, It is a tendency to show a pattern of automatic extinction due to water temperature drop after mid-October.

1) Water temperature 20 ℃ or more

2) Ambient temperature above 30 ℃

3) Rainfall more than 200 - 250㎜, guerrilla heavy rain

4) Amount of yellow dust (nutrient inflow)

5) calm sea without typhoon

6) Heat waves

Therefore, when red tide warning or red tide warning is predicted, loess soil containing a large amount of iron (about 11%) is sprayed on the surface water of the cage farm or the surrounding area with a budget of several billion won. Here, the tide alert occurs when the number of blobs is over 100 blobs / ml and the tide alarm occurs when the blooming alarm is 1,000 blooms / ml or more.

On the other hand, in Korea, after the large-scale red tide damage (KRW 76.4 billion) occurred in 1995, in order to alleviate fisheries damage (aquaculture damage) caused by harmful red tide (cochlonidium polykrikoides) .

The loess and clay spraying method is a method for relieving the red tide by utilizing the properties of the loess colloidal particles by red tide, aggregation and adsorption. In addition, various physical, chemical and biological control technologies have been developed, but loess spraying, which is superior in terms of cost, safety and environmental friendliness, is the only one preferred. Therefore, it is a reality that a pulverizer / disperser for a fine particle of yellow soil and an electrolytic water loam spreader based on a loess spray are used.

The Woods Hole Marine Research Institute in the United States, which has a world-renowned reputation for marine algae research, has also been using loess for 10 years since 1990, as a countermeasure against Heterosigma in Yeosu, Tongyeong and Changwon . In other words, it emphasizes that clay is used as red tide relief method in Korea, Japan, China and so on.

It was first used by the Japanese scholar, Akihiko Miyata, in 1976, for the first time at the Japan Falling Marine Society. Ten years later, he visited the National Fisheries Research and Development Institute, the prefecture of the National Fisheries Research and Development Institute of Korea, I have done a seminar on. Since then, no further studies have been conducted on the use of loess in Japan, and currently no yellow loess is used in Japan when red tides occur.

Since 1996, ROK has been 'patronized' as a means of eliminating red tide creatures (phytoplankton), and the ROK government has officially announced ROV as a red ginseng material in August 2009.

When the red tide appears in Korea, it is exposed to the broadcasting screen, and the Ministry of Maritime Affairs and Fisheries has sent a letter to the municipalities of the whole country several times to encourage the spraying of the loess. However, experts have also raised questions about the effectiveness of clay spraying.

Jeonnam province refused to request the seawater spraying of the loess last year. The red tide that occurred in 2013 swept the coast of the south coast and the east coast, and 17,101 aquaculture farms in Gyeongsang Province suffered about 14 billion won damage Respectively. It is the largest red tide damage in Kyongnam Province, but when the temperature of seawater rises after the end of 'marathon rainy season', red tide has been more powerful.

However, Jeollanam - do did not spray 1g of loess in 2013 because of the insignificant effect of loess red tide. In this case, instead of using yellow loess, the red tide strip was driven out by using a ship. In 2013, a red alert was issued to Goheung and Yeosu in Jeollanam-do but unlike Gyeongnam, damage was not received.

On the other hand, Gyeongsangnam-do started to spray yellow soil from the morning after the announcement of red tide warning in 2013, and it poured 24,400 tons of 50% of 48,800 tons of stockpile, but it does not prevent the red tide that is pushed by the bird The damage was followed.

In relation to this, Jeollanam-do claimed in 2013 that "the effect of the clay spray is low even if we look at the current situation." Rather, 80% of the sprayed loess is caused to sink into the sea in 5 minutes, causing only the problem of causing desertification in the sea.

The use of ship in Jeonnam province is a convenient way to prevent the formation of red tide by destroying the formation of water temperature. When a person is overweight when exercising when pregnant, it is like the principle of miscarriage, and the birds that produce red tide need at least 8 hours of stable living space. The red tide (mainly Cochlonidium polykrikoides, which is the most damaging to the Republic of Korea) floats to the surface when the sun rises and photosynthesizes near the water surface (0.5m) to store the nutrients (glucose) Under hypoxic conditions, cell division and cell fattening enter.

Therefore, in Jeollanam-do, turbulence (shear rate) was formed using a ship with a strong screw near the area where birds were approaching from 11 am to 1 pm, where the bird activity was vigorous, To prevent photosynthesis, thereby suppressing red tide growth.

In other words, the existing method of spraying loess on a farm and its surroundings when red tide warning or red tide warning occurs is a mere measure and can not be a fundamental red tide remedy measure.

Therefore, there is an urgent need for remedies that can fundamentally solve red tide damage in farms, but there is no red tide remedy available at present.

Korean Patent Publication No. 2005-0026427 (published on March 03, 2005)

The present invention relates to a watertight structure which functions as a farm and is surrounded by a watertight barrier for each side and a lower surface of the watertight structure, isolating the inside of the farm from the outside, and forming a plurality of channels, Thereby forming a water flow path to the inside and outside of the farm. Thus, a farm facility capable of providing relief from red tide is proposed.

In addition, the present invention proposes a red tide aquaculture system capable of realizing water temperature management of a farm by raising the lower layer water and spraying (cooling) the water to the surface waters of the farm.

In addition, the present invention proposes a farm facility capable of suppressing occurrence of red tide in a farm site by spraying iron powder-containing stone powder as a red tide growth inhibitor in the entire surface water of a farm site when red tide prediction occurs around a farm site .

In addition, the present invention proposes an aquaculture apparatus capable of suppressing the occurrence of red tide in a farm by providing a sunshade structure for blocking sunlight from entering the farm at a predetermined height at the top of the farm.

The problems to be solved by the present invention are not limited to those mentioned above, and another problem to be solved by the present invention can be clearly understood by those skilled in the art from the following description will be.

SUMMARY OF THE INVENTION The present invention provides, in one aspect, a water tank structure for defining a form space for a farm site; A water blocking layer disposed to surround each side surface and the lower surface of the water tank structure; A plurality of flow paths formed in the water shielding membrane to provide a water flow path into and out of the farm; And a plurality of red tide blocking filters disposed in the respective flow paths to block inflow of red tide creatures into the farm.

The waterproofing barrier membrane of the present invention can have a detachable structure through a detachable attachment method using a waterproof zipper.

The filter for blocking red tide of the present invention may be a honeycomb structure or a porous structure in the form of a scrubbed lattice structure to block the straight passage of the red tide creature.

The porous structure of the present invention may have a diameter of 30 mu m or less.

The filter for blocking red tide of the present invention may be made of any one of a polymer, a wool or an insoluble cloth.

The present invention may further comprise a filter fixing member extending from the upper end to the lower end of the waterproofing barrier film to prevent each of the red-tide blocking filters from being forcedly separated from the respective flow paths.

The present invention may further include a cooler for raising the lower layer around the farm and spraying the water to the surface water of the farm.

The cooler of the present invention can selectively perform the spraying of the lower layer water based on the water temperature sensing result of the farm.

The present invention may further comprise a stone powder disperser for spraying stone powder having an iron content of less than 1% as a red tide growth inhibitor in the entire surface water of the farm.

The present invention may further comprise a control unit for automatically controlling the stone dust disperser to spray the stone powder when the red tide prediction occurs.

The stonewall dispenser of the present invention can perform the spraying operation in accordance with the remote control by the manager.

The present invention is characterized by comprising: a plurality of light-shielding film supporters provided at respective predetermined heights on the corners of the water tank structure; And a black light shielding film which is fixedly supported by the plurality of light shielding film supports and inhibits the photosynthesis reaction of the algae.

The black light-shielding film of the present invention comprises: a lower black light-shielding film fixedly supported on each non-end portion of the plurality of light-shielding film support bars; And an upper black light shielding film which is spaced apart from the lower black light shielding film by a predetermined height so as to cross each other and is fixedly supported at each end portion of the plurality of light shielding film support bars.

The present invention may further include a pump device for suctioning and pumping the residue remaining on the inner bottom surface of the farm to the outside by a vacuum pump.

In the present invention, a plurality of channels for isolating the inside of the farm from the outside and providing a water flow path to the water shielding membrane are formed by surrounding each side surface and the lower surface of the water tank structure functioning as a farm, By arranging the filter for blocking red tide in that position, it is possible to realize effective red tide relief in a farm.

Further, the present invention can realize easy water temperature management in the farm by raising the lower layer water and spraying (cooling) the surface layer water in the farm.

In addition, the present invention can realize effective red tide relief in a farm site by spraying stone powder as a red tide growth inhibitor throughout the surface water of a farm when red tide forecast is generated.

In addition, the present invention can realize an effective redeye relief in a farm environment by providing a sunshade structure that blocks sunlight inflow to the farm at a predetermined height at the top of the farm.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural diagram of a red tide aquaculture system according to the present invention; FIG.
FIGS. 2A and 2B are photographs illustrating an example of a red tide blocking filter having a porous structure in the form of a honeycomb or scrubbing lattice structure according to the present invention.
FIG. 3 is an exemplary cross-sectional view illustrating a cooler for raising a lower layer water and spraying the water into a surface water in a farm according to the present invention.
FIG. 4 is an exemplary cross-sectional view showing a stone powder sprayer for spraying stone powder in surface water of a farm in accordance with the present invention.
FIG. 5 is an exemplary cross-sectional structural view showing a sunshade structure at a predetermined height at the top of a farm according to the present invention.
FIG. 6 is an exemplary cross-sectional structural view showing a pump device for suctioning and pumping the residue remaining on the inner bottom surface of a farm in accordance with the present invention by a vacuum pump.
FIG. 7 is a block diagram of a farm management apparatus applicable to the farm management system according to the present invention.

First, the advantages and features of the present invention, and how to accomplish them, will be clarified with reference to the embodiments to be described in detail with reference to the accompanying drawings. While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. It is to be understood that the following terms are defined in consideration of the functions of the present invention, and may be changed according to intentions or customs of a user, an operator, and the like. Therefore, the definition should be based on the technical idea described throughout this specification.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a structural diagram of a red tide aquaculture system according to the present invention; FIG.

1, the aquaculture apparatus of the present embodiment is provided with a water tank structure 104 that defines (specifies) a water tank 102 for a farm (a cage farm or an aquaculture farm) As shown in various examples, as shown in Figs. 3 to 6, it may be fixed to the buoyancy member and floated. Here, the size of the water tank structure can be, for example, 5, 5, 5, or 10, 10, or 8 meters.

A water shielding shielding film 106 having a waterproof function is disposed so as to surround the respective sides of the water tank structure 104 (that is, the four sides) and the waterproofing shielding membrane 106. A plurality of channels 108 functioning as a water flow path for allowing water (seawater) to flow inside and outside the farm are formed (arranged) at regular intervals. The formation of the plurality of flow paths 108 on each side of the water shielding membrane 106 is to smoothly flow water between the inside and the outside of the farm to prevent the water temperature inside the farm from rising.

Although not shown in detail in the drawings, the water shielding membranes 106 disposed in a form surrounding the water tank structure 104 can be formed by, for example, an engaging jaw or an engaging structure formed at each upper end of four sides of the water tank structure It can be installed in such a way that it is caught through.

Although FIG. 1 illustrates a structure in which nine channels are formed on one surface, the present invention is not necessarily limited to this, and a relatively larger number of channels may be formed depending on a farmed fish species or aquaculture environment, It is of course possible to form a small number of flow paths.

In addition, in the channels 108 formed at predetermined positions of the water shielding membrane 106 at predetermined intervals, red tide blocking filters, that is, red tide creatures existing in water flowing from outside the farm to the inside of the farm, And a filter 110 for blocking red tide for blocking (preventing) the filter can be disposed (mounted).

Here, as shown in Figs. 2A and 2B, the red-tide blocking filter 110 disposed in each of the plurality of flow paths 108 may be a honeycomb or a wastewater lattice structure in which the red- Type porous structure. Here, the red tide blocking filter 110 may have a porous structure including pores having a diameter of 30 占 퐉 or less, for example.

As the material for the red-tide blocking filter 110, any one of a polymer, a wool or an insoluble cloth may be used.

Each of the red-blooming filters 110 forms one filter group in the vertical direction and is extended from the upper end to the lower end of one filter fixing member 116, that is, the water- A filter fixing member 116 is disposed (installed) for preventing the red-tide blocking filter from being forced out of the flow path due to a strong flow velocity caused by a typhoon or the like, or a phenomenon that a part of the water-blocking blocking film 106 is torn.

Here, the filter fixing member 116 is made of, for example, a waterproof sewed fiber material placed between two layers of waterproof fabrics constituting the waterproofing shielding film 106, or a thin metal material such as thin aluminum sheet .

The waterproofing shielding film 106 may have a structure in which it is detachably installed (installed) on the water tank structure 104 by a detachable attachment method using a waterproof zipper 112, for example. 1, reference numeral 114 denotes a zipper pull.

That is, the water shielding membrane 106 applied to the aquaculture apparatus of the present invention can be installed or uninstalled by opening and closing the waterproof zipper 112, ), Water barrier membranes should be installed in the farms for red tide relief, and water barrier membranes installed in the farms should be removed for smooth fish farming during periods when no red tides occur (eg, November through May (the following year)). .

FIG. 3 is an exemplary cross-sectional view illustrating a cooler for raising a lower layer water and spraying the water into a surface water in a farm according to the present invention.

3, the cooler 310 selectively applied to a farm according to the present invention may include a suction pipe 312 and an injector 314, and when the water temperature of a farm exceeds a predetermined threshold range (Not shown) is operated according to the operation control provided from the cooling execution unit 708 of FIG. 7 to be described later, whereby the number of lower layers (for example, the lower number of layers of about 10 meters) It is possible to perform functions such as pumping a relatively cold (relatively low water temperature) lower layer water and spraying it to the surface waters of the farm.

At this time, in consideration of the habit (tidal characteristics) that the red tide creatures move to 4 meters or less from the surface layer at night, the lower layer water injection into the surface water using the cooler 310 is performed in the weekday time zone such as 11 am to 3 pm As shown in FIG. 3, reference numeral 302 denotes a buoyancy member, 304 denotes a cage net, and 306 denotes weight.

That is, the aquaculture apparatus of the present invention can utilize the cooler 310 as a means for adjusting or maintaining the water temperature of the aquaculture site to an appropriate range or minimizing the rise in water temperature in the aquaculture site.

FIG. 4 is an exemplary cross-sectional view showing a stone powder sprayer for spraying stone powder in surface water of a farm in accordance with the present invention.

Referring to FIG. 4, a stone powder spreader 408 selectively applied to a farm in accordance with the present invention is a stone powder spreader 408, which is applied to a farm in accordance with a spreading control provided from a spreading execution unit 710 shown in FIG. For example, a stone powder having an iron content of less than 1% can be sprayed as a red tide growth inhibitor throughout the surface waters of a farm (automatic spraying in red tide forecasting). 4, reference numeral 402 denotes a buoyancy member, 404 denotes a cage net, and 406 denotes weight.

That is, according to the present invention, when a red tide forecast is generated, a stone powder (for example, a stone powder having an iron content of less than 1%) containing a relatively small amount of iron component as compared with yellow soil having an iron component of about 11% To provide a secondary red tide remedy or control.

In addition, the stone powder spreader 408 may perform a manual stone powder dispensing operation in accordance with the remote adjustment control by the farm administrator as well as the automatic spraying at the red tide forecasting, Or a mobile app (e.g., a farm management app) installed in a remote controller or a smart phone in cooperation with a control device for managing and controlling the spreader.

FIG. 5 is an exemplary cross-sectional structural view showing a sunshade structure at a predetermined height at the top of a farm according to the present invention.

Referring to FIG. 5, the sunlight blocking structure 510 selectively applied to the farm may include a light shielding film support 5102, a lower black light shielding film 5104, and an upper black light shielding film 5106.

First, a plurality of light-shielding film supports 5102 are provided at a predetermined height on one upper side of each buoyancy member 502 of the farm, and a black light-shielding film fixed and supported by a plurality of light-shielding film supports 5102 may be installed. Shielding film support 5102. The lower shielding film 5104 and the lower shielding film 5104 are spaced apart from each other by a predetermined height so as to intersect with each other, And an upper black light shielding film 5106 fixedly supported on the respective end portions of the black screen 5102.

The installation height of the lower black light shielding film 5104 is required to secure a sufficient space for the farm administrator to freely act on the buoyancy member 502 without being disturbed by the lower black light shielding film 5104. In FIG. 5, reference numeral 504 denotes a cage net, and 506 denotes a weight.

In this case, the double shielding structure in which the black light shielding films are arranged alternately intercepts the sunlight to the surface water of the farm (cage net) more surely, In order to get out of the farm where it is not possible.

FIG. 6 is an exemplary cross-sectional structural view showing a pump device for suctioning and pumping the residue remaining on the inner bottom surface of a farm in accordance with the present invention by a vacuum pump.

Referring to FIG. 6, the pump equipment is configured to pump the lower surface of the farm, that is, the water tank structure (not shown), based on the pumping force from a pumping motor (not shown) operated according to the pumping control provided from the pumping execution unit 712 of FIG. (For example, fish feed, fish manure, etc.) remaining on the entire lower surface of the water shielding shielding film disposed in the form of surrounding each side surface and the lower surface of the vessel 612, And the like can be provided.

To this end, the pump device includes an aspirator 610 for vacuum-drawing residuals (or accumulation) residing on the lower surface of the water shielding membrane, and a vacuum suction receiver 640 for supplying the vacuum suctioned residue to the vessel 612 or the outside And a suction pipe 608 for transferring the fluid. In Fig. 6, reference numeral 602 denotes a buoyancy member, 604 denotes a cage net, and 606 denotes a weight.

That is, the present invention can periodically or non-periodically operate the pump equipment according to the judgment and control operation of the farm manager, thereby removing residues such as fish feed, fish manure accumulated in the lower part of the farm, It can provide a stylistic environment.

7 is a block diagram of a farm management apparatus applicable to a farm facility according to the present invention. The farm management apparatus includes a water temperature sensor 702, a red-tide forecast reception unit 704, a control unit 706, a cooling execution unit 708, A pumping unit 710, a pumping unit 712, and the like.

Referring to FIG. 7, the water temperature sensor 702 may be a plurality of sensors disposed at predetermined positions in a farm. The water temperature sensor 702 senses the water temperature of the farm in a predetermined period and transmits the water temperature to the controller 706 .

The redeye forecast receiving unit 704 receives the redeye forecast signal transmitted from any one of the plurality of redeye detection sensors spaced apart from the farm by a predetermined distance and transmits the redeye forecast signal to the controller 706 or the redeye forecast server (Not shown) and transmitting the red-eye forecast received through the wireless network to the control unit 706. [

Here, the red tide forecast transmitted from the remote red tide forecast server may be, for example, a red tide warning or a red tide warning, and the red tide warning may occur, for example, above 100 red tide biomass / ml, / RTI > cells / ml. &Lt; / RTI >

The red tide forecast transmitted from the red tide forecasting server includes distance information between two points (red tide measurement point and a farm site) obtained by using a GPS (satellite positioning system) device and acoustic doppler for measuring the flow velocity of seawater. And information on the estimated time of arrival of the red tide bioaccumulation to the farm site calculated based on the tide information (flow rate information) measured using an anemometer or the like.

The control unit 706 may be a computer device or a server device that can control the entire operation of the farm management apparatus including a microprocessor or the like. The control unit 706 may include a water temperature sensor The controller monitors whether or not the signal exceeds a predetermined threshold range and generates a spray control command for pumping and spraying the lower layer water when it is determined that the water temperature detection result of the monitoring result exceeds the predetermined threshold range, (708), and so on.

When the injection control command is generated from the control unit 706, the cooling execution unit 708 operates a pumping motor (not shown) for raising the lower water number. As a result, the cooler 310 is connected to the suction pipe 312, And the lower layer water around the farm is pumped through the sprayer 314 to the surface water of the farm.

The control unit 706 may generate a spray control command for spraying the stone powder and deliver it to the spray execution unit 710 when the red tide forecast is received through the red tide forecast receiving unit 704 .

When such a spray control command is issued from the control unit 706, the spray execution unit 710 activates the stone dust disperser 408, and as a result, the stone dust disperser 408 causes the stone powder, for example, Stones are sprayed throughout the surface waters of the farm as red tide growth inhibitors.

Further, the control unit 706 may generate a pumping control command corresponding to the operation of removing the residues accumulated on the lower front surface of the farm, and deliver the pumping control command to the pumping execution unit 712 .

When such a pumping control command is generated from the control unit 706, the pumping execution unit 712 actuates a pumping device to suck the residues in the inner lower portion of the farm, so that the residues through the inhaler 610 Is sucked, is then transferred through the suction pipe (608) and discharged to the ship (612) or the outside.

In other words, the pond manager can remove pond residues such as fish feed and fish manure accumulated on the bottom surface of the farm by operating the pump equipment whenever necessary.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the following claims. It is easy to see that this is possible. That is, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the present invention.

Therefore, the scope of protection of the present invention should be construed in accordance with the following claims, and all technical ideas within the scope of equivalents should be interpreted as being included in the scope of the present invention.

Claims

A tank structure that defines a form space for a farm;
A water blocking layer disposed to surround each side surface and the lower surface of the water tank structure;
A plurality of flow paths formed in the water shielding membrane to provide a water flow path into and out of the farm;
And a plurality of red tide blocking filters disposed in the respective flow paths to block inflow of the red tide creatures into the farm
And a control unit for controlling the control unit.

The method according to claim 1,
The waterproofing shielding film may be formed,
It has a detachable structure through detachable method using waterproof zipper.
Aquaculture system for red tide.

The method according to claim 1,
The filter for blocking red tide,
A honeycomb structure or a scrubbing lattice structure in the form of a porous structure that blocks the straight passage of the red-
Aquaculture system for red tide.

The method of claim 3,
The porous structure may comprise:
Having a diameter of 30 占 퐉 or less
Aquaculture system for red tide.

The method according to claim 1,
The filter for blocking red tide,
Made of any one of polymer, wool or insoluble cloth
Aquaculture system for red tide.

The method according to claim 1,
A filter fixing member which is extended from the upper end to the lower end of the waterproofing barrier film to prevent each of the red-
Further comprising: a control unit for controlling the operation of the farm facility.

The method according to claim 1,
A cooler for raising the lower layer around the farm and spraying it to the surface water of the farm
Further comprising: a control unit for controlling the operation of the farm facility.

8. The method of claim 7,
The cooler includes:
Based on the water temperature detection result of the farm, the lower layer water is sprayed selectively
Aquaculture system for red tide.

The method according to claim 1,
A stone powder spreader spraying the whole surface water of the above farm as a red tide growth inhibitor with a stone powder having an iron content of less than 1%
Further comprising: a control unit for controlling the operation of the farm facility.

10. The method of claim 9,
A control unit for automatically controlling the stone powder spreader to spray stone powder when a red tide forecast is generated
Further comprising: a control unit for controlling the operation of the farm facility.

10. The method of claim 9,
The stone powder duster includes:
And executes the spraying operation in accordance with the remote control by the manager
Aquaculture system for red tide.

The method according to claim 1,
A plurality of light-shielding film supports installed at respective corners of the water tank structure at a predetermined height;
And a black light shielding film which is fixedly supported by the plurality of light shielding film supports and suppresses photosynthetic reaction of the algae,
Further comprising the step of:

13. The method of claim 12,
The black light-
A lower black light blocking film fixedly supported on each non-end portion of the plurality of light blocking film supports;
The upper black light shielding film being disposed at a predetermined height from the lower black light shielding film so as to cross each other and being fixedly supported at each end portion of the plurality of light shielding film support bars,
And a control unit for controlling the operation of the farm facility.

The method according to claim 1,
A pump device for suctioning and pumping the residue remaining on the inner bottom surface of the farm to the outside by a vacuum pump
Further comprising: a control unit for controlling the operation of the farm facility.