CA2958724A1 - Eel aquaculture system using ict - Google Patents
Eel aquaculture system using ict Download PDFInfo
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- CA2958724A1 CA2958724A1 CA2958724A CA2958724A CA2958724A1 CA 2958724 A1 CA2958724 A1 CA 2958724A1 CA 2958724 A CA2958724 A CA 2958724A CA 2958724 A CA2958724 A CA 2958724A CA 2958724 A1 CA2958724 A1 CA 2958724A1
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- Farming Of Fish And Shellfish (AREA)
Abstract
Disclosed is an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT, which transceives important data regarding culture conditions in culture of eels, such as water quality management, feed supply amount/cycle, water temperature, photoperiod, etc., based on ICT so as to remotely monitor states at the inside and outside of a farm in real time, executes integrated management of Leptocephali corresponding to larvae of eels, elvers and adult eels, greatly improves a growth rate and a survival rate of eels, suggests a model for systematic culture of eels and integrated management of large-scale culture equipment so as to contribute to increase in farm income, and increases export of eels through mass production so as to contribute to national economic growth.
Description
EEL AQUACULTURE SYSTEM USING ICT
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to an eel aquaculture system which increases a growth rate and a survival rate of freshwater eels using Information and Communication Technologies (ICT) and, more particularly, to an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT, which transceives important data regarding culture conditions in culture of eels, such as water quality management, feed supply amount/cycle, water temperature, photoperiod, etc., based on ICT so as to remotely monitor states at the inside and outside of a farm in real time, executes integrated management of Leptocephali corresponding to larvae of eels, elvers and adult eels, greatly improves a growth rate and a survival rate of eels, suggests a model for systematic culture of eels and integrated management of large-scale culture equipment so as to contribute to increase in farm income, and increases export of eels through mass production so as to contribute to national economic growth.
Description of the Related Art In general, fishes are classified into freshwater fish which spawn/hatch and develop in fresh water, seawater fish which spawn/hatch and develop in seawater, and migratory fish which move between fresh water and seawater for breeding. Thereamong, migratory fishes are divided into anadromous fish which spawn in fresh water and live in seawater, for example, salmon or river puffer, and catadromous fish which spawn in seawater and live in fresh water, for example, freshwater eel or giant mottled eel.
However, migratory fishes including anadromous fish and catadromous fish moving from fresh water to seawater or moving from seawater to fresh water should maintain equilibrium in salt concentrations between a body fluid and water therearound.
That is, migratory fish uniformly maintains osmotic pressure with the body thereof if the fish moves from fresh water to seawater or moves from seawater to fresh water. On the other hand, since freshwater fish has a much higher salt concentration of a body fluid thereof than water therearound and water enters the body through the skin and gills thereof by osmotic pressure and thus dilutes the body fluid, freshwater fish should continuously discharge water.
BACKGROUND OF THE INVENTION
Field of the Invention The present invention relates to an eel aquaculture system which increases a growth rate and a survival rate of freshwater eels using Information and Communication Technologies (ICT) and, more particularly, to an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT, which transceives important data regarding culture conditions in culture of eels, such as water quality management, feed supply amount/cycle, water temperature, photoperiod, etc., based on ICT so as to remotely monitor states at the inside and outside of a farm in real time, executes integrated management of Leptocephali corresponding to larvae of eels, elvers and adult eels, greatly improves a growth rate and a survival rate of eels, suggests a model for systematic culture of eels and integrated management of large-scale culture equipment so as to contribute to increase in farm income, and increases export of eels through mass production so as to contribute to national economic growth.
Description of the Related Art In general, fishes are classified into freshwater fish which spawn/hatch and develop in fresh water, seawater fish which spawn/hatch and develop in seawater, and migratory fish which move between fresh water and seawater for breeding. Thereamong, migratory fishes are divided into anadromous fish which spawn in fresh water and live in seawater, for example, salmon or river puffer, and catadromous fish which spawn in seawater and live in fresh water, for example, freshwater eel or giant mottled eel.
However, migratory fishes including anadromous fish and catadromous fish moving from fresh water to seawater or moving from seawater to fresh water should maintain equilibrium in salt concentrations between a body fluid and water therearound.
That is, migratory fish uniformly maintains osmotic pressure with the body thereof if the fish moves from fresh water to seawater or moves from seawater to fresh water. On the other hand, since freshwater fish has a much higher salt concentration of a body fluid thereof than water therearound and water enters the body through the skin and gills thereof by osmotic pressure and thus dilutes the body fluid, freshwater fish should continuously discharge water.
2 Further, since seawater fish has a much lower salt concentration of a body fluid thereof than water therearound and discharge water to the outside of the body thereof, seawater fish absorb a large amount of water to supplement water. Therefore, migratory fish undergoes a process of acclimating to a brackish water zone (or an estuary) so as to adjust a salt concentration due to osmotic pressure.
Particularly, ecological migratory characteristics of freshwater eels, which are a representative kind of catadromous fish, will be described below. Leptocephali as a primary metamorphosis type (i.e., the larvae of eels or young eels) hatching in the deep sea of the Pacific Ocean (estimated as the West coast of the South Pacific Mariana Islands) move in a westward direction along the North Equatorial Current, move in a northward direction along the Kuroshio Current, reach the coast and transform into elvers as a secondary metamorphosis type The elvers congregate in a brackish water zone (for example, an estuary), adjust a salt concentration through the osmotic pressure process, go upstream to a river or a reservoir and then grow for a designated period, undergo adjustment with respect to salt concentration of the seawater through the osmotic pressure while remaining in the brackish water zone for a designated period so as to spawn, and then return to the deep sea of the Pacific Ocean.
Particularly, ecological migratory characteristics of freshwater eels, which are a representative kind of catadromous fish, will be described below. Leptocephali as a primary metamorphosis type (i.e., the larvae of eels or young eels) hatching in the deep sea of the Pacific Ocean (estimated as the West coast of the South Pacific Mariana Islands) move in a westward direction along the North Equatorial Current, move in a northward direction along the Kuroshio Current, reach the coast and transform into elvers as a secondary metamorphosis type The elvers congregate in a brackish water zone (for example, an estuary), adjust a salt concentration through the osmotic pressure process, go upstream to a river or a reservoir and then grow for a designated period, undergo adjustment with respect to salt concentration of the seawater through the osmotic pressure while remaining in the brackish water zone for a designated period so as to spawn, and then return to the deep sea of the Pacific Ocean.
3 Therefore, considering that elvers transformed from larvae of eels (i.e., Leptocephali) are adapted to the salt concentration under the seawater conditions while staying in the brackish water zone and go upstream to the river, an aquaculture system in which seawater, brackish water and freshwater conditions are prepared in an aquaculture process to grow eels from a young eel stage to an adult eel stage may be provided.
Korean Patent Registration No. 10-1587860 discloses a water supply apparatus for culturing eel which is suitable for culture of eels from the young eel state to the adult eel stage by designing a seawater zone, a brackish water zone and a freshwater zone in a mixed state of a recirculating aquaculture method and a running water culture method so as to be adapted to phased culture of eels.
Freshwater eels are sensitive to changes in water quality, etc., and mass mortality may thus frequently occur, and, if culture water is purified and circulated, water quality management becomes important. Korean Patent Registration No. 10-1609905 discloses a method of purifying wastewater containing a developmental hormone, i.e., estrogen.
Further, in order to increase a growth rate and a survival rate of freshwater eels in culture water, feed, a feeding cycle and a water contamination level due to supply
Korean Patent Registration No. 10-1587860 discloses a water supply apparatus for culturing eel which is suitable for culture of eels from the young eel state to the adult eel stage by designing a seawater zone, a brackish water zone and a freshwater zone in a mixed state of a recirculating aquaculture method and a running water culture method so as to be adapted to phased culture of eels.
Freshwater eels are sensitive to changes in water quality, etc., and mass mortality may thus frequently occur, and, if culture water is purified and circulated, water quality management becomes important. Korean Patent Registration No. 10-1609905 discloses a method of purifying wastewater containing a developmental hormone, i.e., estrogen.
Further, in order to increase a growth rate and a survival rate of freshwater eels in culture water, feed, a feeding cycle and a water contamination level due to supply
4 of feed should be accurately detected, but these conditions are not used to construct a database through experimentation in actual farms.
In summary, when freshwater eels are cultured, the survival rate of eel larvae or young eels is low, i.e., about 5%, and, in order to increase such a survival rate, an integrated management system to optimize various variables is required. However, up to now, studies on integrated management systems necessary to culture freshwater eels are lacking, aquaculture of eels is carried out on a small scale relative to a large market scale and, thus, heavy investment in research on such systems has not yet been carried out.
PRIOR ART DOCUMENT
PATENT DOCUMENT
(Patent Document 1) Korean Patent Reg. No. 10-1587860 (Patent Document 2) Korean Patent Reg. No. 10-1609905 (Patent Document 3) Korean Patent Reg. No. 10-1587855 (Patent Document 4) Korean Patent Reg. No. 10-1587850 (Patent Document 5) Korean Patent Reg. No. 10-1587853 (Patent Document 6) Korean Patent Laid-open Publication No.
In summary, when freshwater eels are cultured, the survival rate of eel larvae or young eels is low, i.e., about 5%, and, in order to increase such a survival rate, an integrated management system to optimize various variables is required. However, up to now, studies on integrated management systems necessary to culture freshwater eels are lacking, aquaculture of eels is carried out on a small scale relative to a large market scale and, thus, heavy investment in research on such systems has not yet been carried out.
PRIOR ART DOCUMENT
PATENT DOCUMENT
(Patent Document 1) Korean Patent Reg. No. 10-1587860 (Patent Document 2) Korean Patent Reg. No. 10-1609905 (Patent Document 3) Korean Patent Reg. No. 10-1587855 (Patent Document 4) Korean Patent Reg. No. 10-1587850 (Patent Document 5) Korean Patent Reg. No. 10-1587853 (Patent Document 6) Korean Patent Laid-open Publication No.
5 SUMMARY OF THE INVENTION
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT, which transceives important data regarding culture conditions in culture of eels, such as water quality management, feed supply amount/cycle, water temperature, photoperiod, etc., based on ICT so as to remotely monitor states at the inside and outside of a farm in real time, executes integrated management of Leptocephali corresponding to larvae of eels, elvers and adult eels, and greatly improves a growth rate and a survival rate of freshwater eels.
It is another object of the present invention to provide an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT, which suggests a model for systematizing culture of freshwater eels and integratedly managing large-scale culture equipment so as to contribute to increase in farm income, and increases export of freshwater eels through mass production so as to contribute to national economic growth.
In accordance with the present invention, the above and other objects can be accomplished by the provision of
Therefore, the present invention has been made in view of the above problems, and it is an object of the present invention to provide an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT, which transceives important data regarding culture conditions in culture of eels, such as water quality management, feed supply amount/cycle, water temperature, photoperiod, etc., based on ICT so as to remotely monitor states at the inside and outside of a farm in real time, executes integrated management of Leptocephali corresponding to larvae of eels, elvers and adult eels, and greatly improves a growth rate and a survival rate of freshwater eels.
It is another object of the present invention to provide an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT, which suggests a model for systematizing culture of freshwater eels and integratedly managing large-scale culture equipment so as to contribute to increase in farm income, and increases export of freshwater eels through mass production so as to contribute to national economic growth.
In accordance with the present invention, the above and other objects can be accomplished by the provision of
6 an eel aquaculture system using Information and Communication Technologies (ICT) of increasing a growth rate and a survival rate of freshwater eels, the eel aquaculture system including cisterns configured to receive culture water and to execute aquaculture of eels, sensors and cameras installed in the cisterns, a water quality measurement instrument configured to display and transmit water quality data measured by the sensors and images transmitted from the cameras, a gateway configured to transmit the water quality data received from the water quality measurement instrument, an integrated management server configured to store and analyze the water quality data received from the gateway and image data received from the cameras and to transmit the received water quality data and image data and analyzed data, and a user terminal configured to receive the water quality data, the image data and the analyzed data from the integrated management server.
The eel aquaculture system using ICT may further include at least one of a culture water control apparatus, a culture water circulation and purification apparatus, a feeding apparatus and a light control apparatus.
The culture water control apparatus may include a seawater supply tank and a freshwater supply tank configured to supply seawater and freshwater to the cisterns so as to
The eel aquaculture system using ICT may further include at least one of a culture water control apparatus, a culture water circulation and purification apparatus, a feeding apparatus and a light control apparatus.
The culture water control apparatus may include a seawater supply tank and a freshwater supply tank configured to supply seawater and freshwater to the cisterns so as to
7 maintain culture water in the cisterns as any one of seawater, brackish water and freshwater, to lower salinity in seawater or brackish water, or to raise salinity in brackish water or freshwater, a heater and cooler installed in each of the cisterns to control a water temperature of the cistern, and a pH control tank connected to the cisterns, the seawater supply tank, the freshwater supply tank or the water circulation and purification apparatus so as to supply pH regulators.
The culture water circulation and purification apparatus may purify culture water overflowing each of the cisterns and then resupply the purified culture water to the corresponding cistern, and the culture water circulation and purification apparatus may include outlets, each outlet provided at one side of the upper portion of the cistern, guide members communicating with the outlets, a drain channel starting from an area just under the lower ends of the guide members, an aeration tank configured to accommodate culture water supplied from the drain channel and to aerate the culture water to control a dissolved oxygen rate in the culture water, sterilization tanks configured to sterilize the culture water having passed through the aeration tank, and a biofilter tank configured to biofilter the culture water having passed through the sterilization tanks.
The culture water circulation and purification apparatus may purify culture water overflowing each of the cisterns and then resupply the purified culture water to the corresponding cistern, and the culture water circulation and purification apparatus may include outlets, each outlet provided at one side of the upper portion of the cistern, guide members communicating with the outlets, a drain channel starting from an area just under the lower ends of the guide members, an aeration tank configured to accommodate culture water supplied from the drain channel and to aerate the culture water to control a dissolved oxygen rate in the culture water, sterilization tanks configured to sterilize the culture water having passed through the aeration tank, and a biofilter tank configured to biofilter the culture water having passed through the sterilization tanks.
8 The eel aquaculture system using ICT may further include a magnetized water creation apparatus configured to magnetize culture water discharged from the cisterns, and the magnetized water creation apparatus may include a primary magnetized water creation unit installed at a position spaced apart from the bottom of the drain channel by a designated interval and including a plurality of first magnet members, a magnetized water tank configured to accommodate culture water having passed through the primary magnetized water creation unit, a rotation shaft inserted into the magnetized water tank, and a secondary magnetized water creation unit including a plurality of second magnet members installed on the rotation shaft.
If a female hormone is put into culture water of the cisterns, a photocatalytic decomposition section provided with the surface including a photocatalyst powder may be formed in at least a partial section of the drain channel to discharge the culture water containing the female hormone, and ultraviolet irradiation apparatuses may be installed in the photocatalytic decomposition section.
The feeding apparatus may includes an air injection unit, an air injection pipe provided with one end connected to the air injection unit and the other end inserted into culture water of the cistern, and a feed supply tank communicating with one side of the air
If a female hormone is put into culture water of the cisterns, a photocatalytic decomposition section provided with the surface including a photocatalyst powder may be formed in at least a partial section of the drain channel to discharge the culture water containing the female hormone, and ultraviolet irradiation apparatuses may be installed in the photocatalytic decomposition section.
The feeding apparatus may includes an air injection unit, an air injection pipe provided with one end connected to the air injection unit and the other end inserted into culture water of the cistern, and a feed supply tank communicating with one side of the air
9 injection pipe, and, as culture water in the cistern is aerated with air supplied from the air injection unit, feed is supplied.
The light control apparatus may be installed in the cistern having a closed upper surface and periodically radiate light.
A bottom of each of the cisterns may have a tapered cross-section, the width of which is gradually narrowed in the downward direction, a sediment discharge pipe may be connected to the lowermost end of the cistern, a net member to pass sediments may be installed in the lateral direction on the bottom, a water supply hole to supply culture water may be formed at a region of the cistern above the net member, and an outlet to discharge culture water and floating matter may be formed above the water supply pipe.
The eel aquaculture system using ICT may be operated in an integrated management module including an upper stage and a lower stage provided below the upper stage, at least the cisterns, the guide members and drain channel may be installed on the upper stage, at least the aeration tank, the sterilization tanks, the biofilter tank, the seawater supply tank and the freshwater supply tank may be installed on the lower stage, culture water having passed the drain channel may fall into the aeration tank through pipes, and culture water having passed through the biofilter tank may be resupplied to the cisterns using pumps so as to be circulated.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a block diagram illustrating the configuration of an eel aquaculture system using ICT in accordance with the present invention;
FIG. 2 is a perspective view of an eel farm provided with an integrated management system in accordance with the present invention;
FIG. 3 is a block diagram illustrating various apparatuses to manage cisterns in accordance with the present invention;
FIG. 4 is a block diagram illustrating the configuration of a culture water control apparatus in accordance with the present invention;
FIGS. 5A and 5B are views illustrating a drain channel and ultraviolet irradiation apparatuses provided in a photocatalytic decomposition section in accordance with the present invention;
FIG. 6 is a schematic view illustrating a secondary magnetized water creation unit in accordance with the present invention;
FIG. 7 is a schematic view illustrating a feeding apparatus in accordance with the present invention; and FIG. 8 is a schematic view illustrating a brood stork cistern in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
In the following description of the present invention, a 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.
Also, the terms used in the following description are defined taking into consideration the functions obtained in accordance with the present invention. The definitions of these terms should be determined based on the whole content of this specification because they may be changed in accordance with intention of a user or operator or usual practice.
An eel aquaculture system using Information and Communication Technologies (ICT) in accordance with the present invention, which increases a growth rate and a survival rate of freshwater eels, is operated based on ICT, and a main object thereof is to prevent mass mortality of Leptocephali, which are larvae of eels, and elvers, which are young eels, and to increase a survival rate and a growth rate of Leptocephali and elvers. However, the disclosure is not limited thereto and the eel aquaculture system using ICT
in accordance with the present invention may be applied not only to aquaculture of eel brood storks but also to artificial ovulation and artificial hatching of eels.
FIG. 1 is a block diagram illustrating the configuration of an eel aquaculture system using ICT in accordance with the present invention, FIG. 2 is a perspective view of an eel farm provided with an integrated management system in accordance with the present invention, and FIG. 3 is a block diagram illustrating various apparatuses to manage cisterns in accordance with the present invention.
With reference to FIGS. 1 and 2, the eel aquaculture system using ICT in accordance with the present invention may include cisterns 110 to receive culture water and execute aquaculture of freshwater eels (eel larvae, young eels, and eel brood storks), sensors 120 and cameras 125 installed in the cisterns 110, a water quality measurement instrument 127 to display and transmit water quality data measured by the sensors 120 and images transmitted from the cameras 125, a gateway 130 to transmit the water quality data received from the water quality measurement instrument 127, an integrated management server 135 to store and analyze the water quality data received from the gateway 130 and image data received from the cameras 125 and to transmit the received water quality data and image data and analyzed data, and a user terminal 137 to receive the water quality data, the image data and the analyzed data from the integrated management server 135.
A parallel-type power source, a normal power source, an emergency power source and an emergency standby source are constructed as power sources of an eel farm 100, thus supplying emergency power in case of emergency.
A control room 101 is provided at one side of the farm 100 and the integrated management server 135, which manages and transmits received data, is installed in the control room 101 so as to manage water quality in real time at the inside and outside of the farm 100.
The cisterns 110 of the present invention, as exemplarily shown in FIG. 2, may include larva cisterns 111 in which eel larvae are bred, fry cisterns 112 in which young eels are bred, and brood stork cisterns 113 in which eel brood storks are bred.
The larva cisterns 111 and the fry cisterns 112 have smaller sizes than the brood stork cisterns 113 but may be provided in larger numbers than the brood stork cisterns 113 so that eel larvae and young eels may be bred at a low density.
In aquaculture of eel larvae and young eels, antibiotics which are used in aquaculture of eel brood storks or adult eels, may not be administered. That is, in order to grow eels and to manage water quality, harmless growth hormones or seaweed planktonic microorganisms (probiotic bacteria), i.e., non-antibiotic feed, are used to breed eels and, thus, eco-friendly water quality management may be carried out.
Further, the sensors 120 and the cameras 125, which are respectively installed in the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113, may measure water quality data and observe eels in the cisterns 110.
The sensor 120 may include at least one of a dissolved oxygen amount measurement sensor 121, a pH
measurement sensor 122, a water temperature measurement sensor 123, a nitrate measurement sensor, an ammonia measurement sensor and a salinity measurement sensor, but, without limitation thereto, any sensor, which may measure water quality data, may be added.
Further, the sensors 120 may transmit water quality data via wire or wirelessly.
For example, the dissolved oxygen amount measurement sensor 121 may measure a dissolved oxygen amount in culture water through polarography.
For example, the pH measurement sensor 122 may measure pH in culture water through a composite glass electrode method.
For example, the water temperature measurement sensor 123 may measure a temperature of culture water through a resistance thermometer method.
The water quality measurement instrument 127 serves to receive water quality data from the sensors 120 through wire or wireless communication, to display the received water quality, and to transmit the received water quality to the gateway 130.
For example, the gateway 130 may execute short range communication within 1 km and LTE/3G wireless communication with the water quality measurement instrument 127 and the integrated management server 135.
The integrated management server 135 receives water quality data from the gateway 130, receives image data from the camera 135, and transmits the water quality data and the image data to the user terminal 137.
In addition to the camera 125, the inner state of the cistern 110 may be minutely monitored through a microscope and, thereby, the breeding state of freshwater eels may be more accurately observed.
Further, a microscopic thermal imaging camera may be installed to precisely check minute temperatures of eel larvae or young eels and thus confirm disease statuses thereof prior to disease emergence or mass mortality. The microscopic thermal imaging camera may periodically check growth and change of eel larvae or young eels and thus improve a survival rate according to a growth rate and execute feed and cistern management.
Further, the integrated management server 135 calculates water quality analysis data by comparing the received water quality data with a predetermined reference value.
For example, if a water temperature measured by the water temperature measurement sensor 123 is 30 C and the predetermined reference value is 28 C, the integrated management server 135 may transmit analysis data indicating that the water temperature is higher than the predetermined reference temperature to the user terminal 137.
Such analysis data is calculated by comparing water quality data (for example, a water temperature, pH, a dissolved oxygen amount, etc.) measured by the respective sensors 200 with respective reference values.
Main causes of diseases of eel larvae or young eels include cleaning states of the cisterns 110, poor quality of feed, excess supply of feed, breeding at a high density, bad young eels, water quality degradation, bacterial diseases due to scars, decrease in immunity/resistance, etc., and a growth rate of eel larvae or young eels may be increased and a water quality may be managed by thoroughly and integratedly controlling all the causes based on the measured data.
Further, a program to detect bad young eels before the eels enter the cisterns 110 may be operated, no disease infection may be managed by thoroughly managing water quality, and, even if a disease occurs in any one of the cisterns 110, a warning system of the corresponding cistern 110 may be operated and measures, such as searching for sick eel larvae using a specific thermal imaging camera, may be carried out in real time and, thus, infection of other eels may be prevented. That is, an optimal body temperature of eels and a proper body temperature of eel larvae having strong immunity are constructed as a database and only healthy eels are detected and allowed to enter the cisterns 110 using the database.
The user terminal 137 receives and displays water quality data, image data and analysis data from the integrated management server 135 and, for example, may be a smartphone or a PC. Since the user terminal 137 may remotely receive the water quality data in real time and visually confirm the states in the cisterns 110 through pictures/images, water quality management may be facilitated and costs, such as personal expenses, may be reduced.
In addition to monitoring of the water quality of culture water within the cisterns 110 and transmission of a warning message, the eel aquaculture system using ICT in accordance with the present invention may further include, as exemplarily shown in FIG. 3, at least one of a culture water control apparatus 150, a culture water circulation and purification apparatus 160, a feeding apparatus 180 and a light control apparatus 119.
The respective apparatuses may be operated by the integrated management server 135 or the user terminal 137.
For example, the integrated management server 135 may automatically operate the apparatuses 150, 160, 119 and 180 so as to manage water quality and, if water quality data measured by the sensors 120 deviates from corresponding predetermined reference values, transmit control instructions to the respective apparatuses 150, 160, 119 and 180, thereby automatically controlling the respective apparatuses 150, 160, 119 and 180.
Further, water quality management may be manually carried out through the user terminal 137. In this case, a manager may observe water quality data, image data and analysis data received through the user terminal 137 and transmit control instructions to the respective apparatuses 150, 160, 119 and 180 through the user terminal 137, thereby controlling the respective apparatuses 150, 160, 119 and 180. In this case, the control instructions transmitted from the user terminal 137 may be directly transmitted to the respective apparatuses 150, 160, 119 and 180, or be transmitted to the respective apparatuses 150, 160, 119 and 180 through the integrated management server 135. In the latter case, a management record is stored in the integrated management server 135 and, thus, the management record may construct a database.
FIG. 4 is a block diagram illustrating the configuration of the culture water control apparatus in accordance with the present invention.
With reference to FIG. 4, the culture water control apparatus 150 may include a seawater supply tank 151, a freshwater supply tank 152, a heater and cooler 153, and a pH control tank 154.
The seawater supply tank 151 and the freshwater supply tank 152 serve to supply seawater and freshwater to the cisterns 110 so as to maintain culture water in the cisterns 110 as any one of seawater, brackish water and freshwater, to lower salinity in seawater or brackish water, or to raise salinity in brackish water or freshwater.
In general, freshwater eels grow in culture water corresponding to one of freshwater, brackish water and seawater due to ecological migratory characteristics of eels.
For example, freshwater eels are managed such that eel brood storks captured from the freshwater are acclimatized in the brackish water for a designated period and thus acclimate to the seawater, so as to induce sexual maturity through hormone therapy to perform ovulation and fertilization and to execute artificial egg production, and then ovulation and fertilization are executed in the seawater.
In more detail, eel larvae hatched in the seawater and eel brood storks managed for artificial incubation live in a switching state among the freshwater, the brackish water and the seawater and, for this purpose, the seawater supply tank 151 and the freshwater supply tank 152 are connected to the larva cisterns 111 or the brood stork cisterns 113.
For example, the brood stork cistern 113 is managed such that culture water contained in the brood stork cistern 113 is initially maintained as freshwater, is converted into brackish water by introduction of a designated of seawater from the seawater supply tank 151 and is then converted into seawater as a designated seawater adaptation period has passed.
Here, when the integrated management server 135 transmits control instructions to the seawater supply tank 151 to supply a predetermined amount of seawater to the brood stork cistern 113, a pipe connecting the seawater supply tank 151 and the brood stork cistern 113 is opened by an electronic control valve installed on the pipe, thereby executing seawater supply.
A salinity sensor installed in the brood stork cistern 113 measures and transmits salinity according to inflow of seawater in real time, and the integrated management server 135 controls a seawater supply amount and a seawater supply cycle based on the measured salinity.
The heater and cooler 153 is installed in the cistern 110 and serves to control a water temperature, and on/off and a heating and cooling intensity of the heater and cooler 153 are controlled by the integrated management server 135.
The pH control tank 154 may be connected to the cisterns 110, the seawater supply tank 151, the freshwater supply tank 152 or the water circulation and purification apparatus 160 through pipes, etc., and electronic control valves are installed on the pipes and serve to supply pH
regulators.
That is, in the present invention, since culture water in the cistern 110 is filtered by employing a water flowing type filtration method, water quality management is executed via a multi-stage filtration process, and a flow rate, a water temperature, pH, DO, salinity, sterilization, a flow velocity, lighting, etc. of each cistern 110 are separately managed, even if a water quality problem occurs in one cistern 110, the corresponding cistern 110 is managed independently of other cisterns 110 and thus a danger of mass mortality may be reduced.
Further, eel larvae of the respective cisterns 110 are cut open once a week and growth states of the eel larvae and young eels are observed using a microscope and constructed as a database. The database may be stored in and managed by the integrated management server 135.
With reference to FIGS. 2 and 3, the culture water circulation and purification apparatus 160 serves to purify culture water overflowing each cistern 110 and then to resupply and circulate the purified water to the corresponding cistern 110.
For example, the culture water circulation and purification apparatus 160 installed for the brood stork cisterns 113 may include outlets 117, each of which is provided at one side of the upper portion of the brood stork cistern 113, tubular guide members 161 communicating with the outlets 117, a drain channel 173 starting from an area just under the lower ends of the guide members 161, an aeration tank 165 which accommodates culture water supplied from the drain channel 173 and aerates the culture water with oxygen to control a dissolved oxygen rate in the culture water, sterilization tanks 166 which sterilize the culture water having passed through the aeration tank 165, a deaeration tank 168 which removes carbon dioxide from the culture water having passed through the sterilization tanks 166, and a split loop-type biofilter tank 167 which biofilters the culture water having passed through the deaeration tank 168.
The sterilization tanks 166 may include a first sterilization tank 166a provided with an ultraviolet lamp installed therein, a second sterilization tank 166b provided with an ultraviolet filter installed therein, and a third sterilization tank 166c sterilizing the culture water through ozone supply.
The biofilter tank 167 serves to decompose ammonia, etc., through a biofilter.
However, the above-described sterilization and purification units are merely exemplary and, thus, various known sterilization units and purification units may be added.
FIGS. 5A and 5B are views illustrating a drain channel and ultraviolet irradiation apparatuses provided in a photocatalytic decomposition section in accordance with the present invention, and FIG. 6 is a schematic view illustrating a secondary magnetized water creation unit in accordance with the present invention.
With reference to FIGS. 5A to 6, in the present invention, a magnetized water creation apparatus 170 may be installed in parallel with the culture water circulation and purification apparatus 160.
The magnetized water creation apparatus 170 may be disposed in front of or at the rear of the aeration tank 165, the sterilization tanks 166 and the biofilter tank 167.
In more detail, the magnetized water creation apparatus 170 may include a primary magnetized water creation unit 171 installed at a position spaced apart from the bottom of the drain channel 173 by a designated interval and including a plurality of first magnet members 174, a magnetized water tank 178 to accommodate culture water having passed through the primary magnetized water creation unit 171, a rotation shaft 179 inserted into the magnetized water tank 178, and a secondary magnetized water creation unit 177 including second magnet members 179a installed on the rotation shaft 179.
The primary magnetized water creation unit 171 preliminarily supplies magnetic force to create magnetized water and, then, culture water is magnetized through the secondary magnetized water creation unit 177. If the culture water is magnetized, physiological activity of freshwater eels is improved and, thus, a survival rate or growth rate of freshwater eels may be improved.
Further, culture water overflowing the respective cisterns 110 may join at the drain channel 173, and may be aerated, sterilized and filtered.
For example, since the larva cisterns 111 have the same culture water quality conditions, i.e., the same water temperature, salinity, pH, etc., culture water discharged from the larva cisterns 111 may join and be then purified, and the purified culture water may be distributed to the larva cisterns 111. However, if culture water quality conditions of the cisterns 110, such as water temperatures, salinities, whether or not a sexual maturity hormone is input, etc., are different, the drain channel 173 is divided according to water quality conditions and culture water purification is separately performed.
In more detail, culture water discharged from the brood stork cisterns 113, in which a sexual maturity hormone is put into culture water so as to induce sexual maturation of brood storks, does not join culture water discharged from other cisterns and may be processed through a separate drain channel 173.
For example, if the sexual maturity hormone (17p-estradiol) is put into culture water of the cisterns 110, a photocatalytic decomposition section 175, the surface of which includes a photocatalyst powder, may be formed in at least a partial section of the drain channel 173, along which the culture water containing the sexual maturity hormone is discharged.
Ultraviolet irradiation apparatuses 176 may be installed in the photocatalytic decomposition section 175.
Here, the drain channel 173 may have a structure, the upper surface of which is completely open, as exemplarily shown in FIG. 5B, or have a pipe structure which is isolated from the outside.
FIG. 7 is a schematic view illustrating the feeding apparatus in accordance with the present invention.
With reference to FIG. 7, the feeding apparatus 180 serves to supply feed in a liquid state or a powder state.
The feeding apparatus 180 controls a feed supply amount and a feed kind according to kinds of freshwater eels being bred in the respective cisterns 110 and supplies feed to the cisterns 110 and, thereby, formation of nitrous acid and a nitrate and virus infection caused by decomposition of high-protein feed waste may be observed in real time so as to be thoroughly prevented in advance.
The feeding apparatus 180 may include an air injection unit 181, an air injection pipe 184 provided with one end connected to the air injection unit 181 and the other end inserted into culture water of the cistern 110 so as to inject feed and air, and a feed supply tank 184 communicating with one side of the air injection pipe 182.
The feed supply tank 184 may be disposed above the air injection pipe 182 and be provided with an electronic control valve 183 to control supply of feed.
The air injection unit 181 communicates with the air injection pipe 182 and supplies air of a designated pressure, thus providing driving force to transfer feed supplied from the feed supply tank 184.
As culture water in the cistern 110 is aerated with air supplied from the air injection unit 181, feed is supplied.
If feed is supplied through an air injection method, aeration is intermittently carried out when feed is supplied to the cistern 110 and may thus assist water quality improvement and, particularly, if the cistern 110 has a sealed tub shape, the upper surface of which is closed, the air injection method is more effective.
FIG. 8 is a schematic view illustrating the brood stork cistern in accordance with the present invention.
With reference to FIG. 8, the light control apparatus 119 is installed in the brood stork cistern 113, the upper surface of which is closed, and serves to periodically radiate light.
The cistern, the upper surface of which is closed, for example, the brood stork cistern 113, may minimize effect of external temperature, external lighting, etc. and thus prevent mass mortality. However, the brood stork cistern 113 may be designed so as to be ventilated through a ventilation hole or an air blower fan 113a installed at one side of the upper part of the brood stork cistern 113.
A bottom 114 of the brood stork cistern 113 of the present invention has a tapered cross-section, the width of which is gradually narrowed in the downward direction, and a sediment discharge pipe 115 may be connected to the lowermost end of the brood stork cistern 113.
Further, a net member 116 to pass sediments is installed in the lateral direction on the bottom 114 and prevents eels in the brood stork cistern 113 from entering a region under the net member 116. If the net member 116 is installed, sediments may be intensively collected in the region under the net member 116, the collected sediments are periodically and selectively discharged to the outside through the sediment discharge pipe 115 and, thus, excellent water quality management may be carried out.
Further, a water supply pipe 118 to supply culture water or the air injection pipe 182 are connected to a region of the brook stork cistern 113 above the net member 116, and the outlet 117 to discharge culture water and floating matter may be formed above the water supply pipe 118. By disposing a water supply hole above the net member 116, re-floating of sediments may be maximally prevented and exchange between purified culture water and culture water contained in the brood stork cistern 113 may be more effectively carried out.
Referring again to FIG. 2, the aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT may be installed in an integrated management module including an upper stage 103 and a lower stage 104 provided below the upper stage 103.
At least the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113 divided from each other are provided on the upper stage 103, and culture water discharged from the brood stork cisterns 113 is purified separately from culture water discharged from other cisterns 111 and 112.
Culture water discharged from the respective cisterns 111, 112 and 113 passes through the culture water circulation and purification apparatuses 160 provided on the lower stage 114, and is then re-supplied to the corresponding cisterns 111, 112 and 113 using the pipes and pumps (not shown).
Further, feed is automatically supplied to the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113 through the separate feeding apparatuses 180.
Further, at least one of the water quality measurement instrument 127, the gateway 130 and the integrated management server 135 is installed in the control room 101 provided at one side of the lower stage 104 and all situations at the inside and outside of the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113 are integratedly managed through received data.
The larva cisterns 111 may be controlled such that different feed supply amounts are put into the larva cisterns 111 or feed is supplied to the larva cisterns 111 in different feeding cycles and purification cycles and increase and decrease of water quality management steps of the larva cisterns 111 are individualized, because there are differences in larva growth period, individual numbers (densities) of larvae, and mean weights/sizes of individual larva between the respective larva cisterns 111. That is, a plurality of the same kind of cisterns is integrated only for convenience in management but environments optimized according to characteristics of individual cisterns may be provided and a growth rate of eels may be raised through individual water quality management and feed management.
Further, the integrated management server 135 constructs water quality, feed supply amounts, feeding cycles, growth data, etc. as a database and then synthetically evaluates accumulated data using an artificial intelligence program, thereby optimizing an eel aquaculture model having increased growth rate and survival rate.
If farm equipment is integratedly managed and modularized, as such, several kinds of cisterns is installed in one place and, more particularly, on an upper stage and, thus, the cisterns may be easily managed and a highly integrated farm may be designed.
As is apparent from the above description, an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT in accordance with the present invention transceives important data regarding culture conditions in culture of eels, such as water quality management, feed supply amount/cycle, water temperature, photoperiod, etc., based on ICT so as to remotely monitor states at the inside and outside of a farm in real time, executes integrated management of Leptocephali corresponding to larvae of eels, elvers and adult eels, and greatly improves a growth rate and a survival rate of freshwater eels.
Further, the eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT in accordance with the present invention suggests a model for systematizing culture of freshwater eels and integratedly managing large-scale culture equipment so as to contribute to increase in farm income, and increases export of freshwater eels through mass production so as to contribute to national economic growth.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
The light control apparatus may be installed in the cistern having a closed upper surface and periodically radiate light.
A bottom of each of the cisterns may have a tapered cross-section, the width of which is gradually narrowed in the downward direction, a sediment discharge pipe may be connected to the lowermost end of the cistern, a net member to pass sediments may be installed in the lateral direction on the bottom, a water supply hole to supply culture water may be formed at a region of the cistern above the net member, and an outlet to discharge culture water and floating matter may be formed above the water supply pipe.
The eel aquaculture system using ICT may be operated in an integrated management module including an upper stage and a lower stage provided below the upper stage, at least the cisterns, the guide members and drain channel may be installed on the upper stage, at least the aeration tank, the sterilization tanks, the biofilter tank, the seawater supply tank and the freshwater supply tank may be installed on the lower stage, culture water having passed the drain channel may fall into the aeration tank through pipes, and culture water having passed through the biofilter tank may be resupplied to the cisterns using pumps so as to be circulated.
BRIEF DESCRIPTION OF THE DRAWINGS
The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a block diagram illustrating the configuration of an eel aquaculture system using ICT in accordance with the present invention;
FIG. 2 is a perspective view of an eel farm provided with an integrated management system in accordance with the present invention;
FIG. 3 is a block diagram illustrating various apparatuses to manage cisterns in accordance with the present invention;
FIG. 4 is a block diagram illustrating the configuration of a culture water control apparatus in accordance with the present invention;
FIGS. 5A and 5B are views illustrating a drain channel and ultraviolet irradiation apparatuses provided in a photocatalytic decomposition section in accordance with the present invention;
FIG. 6 is a schematic view illustrating a secondary magnetized water creation unit in accordance with the present invention;
FIG. 7 is a schematic view illustrating a feeding apparatus in accordance with the present invention; and FIG. 8 is a schematic view illustrating a brood stork cistern in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION
Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.
In the following description of the present invention, a 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.
Also, the terms used in the following description are defined taking into consideration the functions obtained in accordance with the present invention. The definitions of these terms should be determined based on the whole content of this specification because they may be changed in accordance with intention of a user or operator or usual practice.
An eel aquaculture system using Information and Communication Technologies (ICT) in accordance with the present invention, which increases a growth rate and a survival rate of freshwater eels, is operated based on ICT, and a main object thereof is to prevent mass mortality of Leptocephali, which are larvae of eels, and elvers, which are young eels, and to increase a survival rate and a growth rate of Leptocephali and elvers. However, the disclosure is not limited thereto and the eel aquaculture system using ICT
in accordance with the present invention may be applied not only to aquaculture of eel brood storks but also to artificial ovulation and artificial hatching of eels.
FIG. 1 is a block diagram illustrating the configuration of an eel aquaculture system using ICT in accordance with the present invention, FIG. 2 is a perspective view of an eel farm provided with an integrated management system in accordance with the present invention, and FIG. 3 is a block diagram illustrating various apparatuses to manage cisterns in accordance with the present invention.
With reference to FIGS. 1 and 2, the eel aquaculture system using ICT in accordance with the present invention may include cisterns 110 to receive culture water and execute aquaculture of freshwater eels (eel larvae, young eels, and eel brood storks), sensors 120 and cameras 125 installed in the cisterns 110, a water quality measurement instrument 127 to display and transmit water quality data measured by the sensors 120 and images transmitted from the cameras 125, a gateway 130 to transmit the water quality data received from the water quality measurement instrument 127, an integrated management server 135 to store and analyze the water quality data received from the gateway 130 and image data received from the cameras 125 and to transmit the received water quality data and image data and analyzed data, and a user terminal 137 to receive the water quality data, the image data and the analyzed data from the integrated management server 135.
A parallel-type power source, a normal power source, an emergency power source and an emergency standby source are constructed as power sources of an eel farm 100, thus supplying emergency power in case of emergency.
A control room 101 is provided at one side of the farm 100 and the integrated management server 135, which manages and transmits received data, is installed in the control room 101 so as to manage water quality in real time at the inside and outside of the farm 100.
The cisterns 110 of the present invention, as exemplarily shown in FIG. 2, may include larva cisterns 111 in which eel larvae are bred, fry cisterns 112 in which young eels are bred, and brood stork cisterns 113 in which eel brood storks are bred.
The larva cisterns 111 and the fry cisterns 112 have smaller sizes than the brood stork cisterns 113 but may be provided in larger numbers than the brood stork cisterns 113 so that eel larvae and young eels may be bred at a low density.
In aquaculture of eel larvae and young eels, antibiotics which are used in aquaculture of eel brood storks or adult eels, may not be administered. That is, in order to grow eels and to manage water quality, harmless growth hormones or seaweed planktonic microorganisms (probiotic bacteria), i.e., non-antibiotic feed, are used to breed eels and, thus, eco-friendly water quality management may be carried out.
Further, the sensors 120 and the cameras 125, which are respectively installed in the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113, may measure water quality data and observe eels in the cisterns 110.
The sensor 120 may include at least one of a dissolved oxygen amount measurement sensor 121, a pH
measurement sensor 122, a water temperature measurement sensor 123, a nitrate measurement sensor, an ammonia measurement sensor and a salinity measurement sensor, but, without limitation thereto, any sensor, which may measure water quality data, may be added.
Further, the sensors 120 may transmit water quality data via wire or wirelessly.
For example, the dissolved oxygen amount measurement sensor 121 may measure a dissolved oxygen amount in culture water through polarography.
For example, the pH measurement sensor 122 may measure pH in culture water through a composite glass electrode method.
For example, the water temperature measurement sensor 123 may measure a temperature of culture water through a resistance thermometer method.
The water quality measurement instrument 127 serves to receive water quality data from the sensors 120 through wire or wireless communication, to display the received water quality, and to transmit the received water quality to the gateway 130.
For example, the gateway 130 may execute short range communication within 1 km and LTE/3G wireless communication with the water quality measurement instrument 127 and the integrated management server 135.
The integrated management server 135 receives water quality data from the gateway 130, receives image data from the camera 135, and transmits the water quality data and the image data to the user terminal 137.
In addition to the camera 125, the inner state of the cistern 110 may be minutely monitored through a microscope and, thereby, the breeding state of freshwater eels may be more accurately observed.
Further, a microscopic thermal imaging camera may be installed to precisely check minute temperatures of eel larvae or young eels and thus confirm disease statuses thereof prior to disease emergence or mass mortality. The microscopic thermal imaging camera may periodically check growth and change of eel larvae or young eels and thus improve a survival rate according to a growth rate and execute feed and cistern management.
Further, the integrated management server 135 calculates water quality analysis data by comparing the received water quality data with a predetermined reference value.
For example, if a water temperature measured by the water temperature measurement sensor 123 is 30 C and the predetermined reference value is 28 C, the integrated management server 135 may transmit analysis data indicating that the water temperature is higher than the predetermined reference temperature to the user terminal 137.
Such analysis data is calculated by comparing water quality data (for example, a water temperature, pH, a dissolved oxygen amount, etc.) measured by the respective sensors 200 with respective reference values.
Main causes of diseases of eel larvae or young eels include cleaning states of the cisterns 110, poor quality of feed, excess supply of feed, breeding at a high density, bad young eels, water quality degradation, bacterial diseases due to scars, decrease in immunity/resistance, etc., and a growth rate of eel larvae or young eels may be increased and a water quality may be managed by thoroughly and integratedly controlling all the causes based on the measured data.
Further, a program to detect bad young eels before the eels enter the cisterns 110 may be operated, no disease infection may be managed by thoroughly managing water quality, and, even if a disease occurs in any one of the cisterns 110, a warning system of the corresponding cistern 110 may be operated and measures, such as searching for sick eel larvae using a specific thermal imaging camera, may be carried out in real time and, thus, infection of other eels may be prevented. That is, an optimal body temperature of eels and a proper body temperature of eel larvae having strong immunity are constructed as a database and only healthy eels are detected and allowed to enter the cisterns 110 using the database.
The user terminal 137 receives and displays water quality data, image data and analysis data from the integrated management server 135 and, for example, may be a smartphone or a PC. Since the user terminal 137 may remotely receive the water quality data in real time and visually confirm the states in the cisterns 110 through pictures/images, water quality management may be facilitated and costs, such as personal expenses, may be reduced.
In addition to monitoring of the water quality of culture water within the cisterns 110 and transmission of a warning message, the eel aquaculture system using ICT in accordance with the present invention may further include, as exemplarily shown in FIG. 3, at least one of a culture water control apparatus 150, a culture water circulation and purification apparatus 160, a feeding apparatus 180 and a light control apparatus 119.
The respective apparatuses may be operated by the integrated management server 135 or the user terminal 137.
For example, the integrated management server 135 may automatically operate the apparatuses 150, 160, 119 and 180 so as to manage water quality and, if water quality data measured by the sensors 120 deviates from corresponding predetermined reference values, transmit control instructions to the respective apparatuses 150, 160, 119 and 180, thereby automatically controlling the respective apparatuses 150, 160, 119 and 180.
Further, water quality management may be manually carried out through the user terminal 137. In this case, a manager may observe water quality data, image data and analysis data received through the user terminal 137 and transmit control instructions to the respective apparatuses 150, 160, 119 and 180 through the user terminal 137, thereby controlling the respective apparatuses 150, 160, 119 and 180. In this case, the control instructions transmitted from the user terminal 137 may be directly transmitted to the respective apparatuses 150, 160, 119 and 180, or be transmitted to the respective apparatuses 150, 160, 119 and 180 through the integrated management server 135. In the latter case, a management record is stored in the integrated management server 135 and, thus, the management record may construct a database.
FIG. 4 is a block diagram illustrating the configuration of the culture water control apparatus in accordance with the present invention.
With reference to FIG. 4, the culture water control apparatus 150 may include a seawater supply tank 151, a freshwater supply tank 152, a heater and cooler 153, and a pH control tank 154.
The seawater supply tank 151 and the freshwater supply tank 152 serve to supply seawater and freshwater to the cisterns 110 so as to maintain culture water in the cisterns 110 as any one of seawater, brackish water and freshwater, to lower salinity in seawater or brackish water, or to raise salinity in brackish water or freshwater.
In general, freshwater eels grow in culture water corresponding to one of freshwater, brackish water and seawater due to ecological migratory characteristics of eels.
For example, freshwater eels are managed such that eel brood storks captured from the freshwater are acclimatized in the brackish water for a designated period and thus acclimate to the seawater, so as to induce sexual maturity through hormone therapy to perform ovulation and fertilization and to execute artificial egg production, and then ovulation and fertilization are executed in the seawater.
In more detail, eel larvae hatched in the seawater and eel brood storks managed for artificial incubation live in a switching state among the freshwater, the brackish water and the seawater and, for this purpose, the seawater supply tank 151 and the freshwater supply tank 152 are connected to the larva cisterns 111 or the brood stork cisterns 113.
For example, the brood stork cistern 113 is managed such that culture water contained in the brood stork cistern 113 is initially maintained as freshwater, is converted into brackish water by introduction of a designated of seawater from the seawater supply tank 151 and is then converted into seawater as a designated seawater adaptation period has passed.
Here, when the integrated management server 135 transmits control instructions to the seawater supply tank 151 to supply a predetermined amount of seawater to the brood stork cistern 113, a pipe connecting the seawater supply tank 151 and the brood stork cistern 113 is opened by an electronic control valve installed on the pipe, thereby executing seawater supply.
A salinity sensor installed in the brood stork cistern 113 measures and transmits salinity according to inflow of seawater in real time, and the integrated management server 135 controls a seawater supply amount and a seawater supply cycle based on the measured salinity.
The heater and cooler 153 is installed in the cistern 110 and serves to control a water temperature, and on/off and a heating and cooling intensity of the heater and cooler 153 are controlled by the integrated management server 135.
The pH control tank 154 may be connected to the cisterns 110, the seawater supply tank 151, the freshwater supply tank 152 or the water circulation and purification apparatus 160 through pipes, etc., and electronic control valves are installed on the pipes and serve to supply pH
regulators.
That is, in the present invention, since culture water in the cistern 110 is filtered by employing a water flowing type filtration method, water quality management is executed via a multi-stage filtration process, and a flow rate, a water temperature, pH, DO, salinity, sterilization, a flow velocity, lighting, etc. of each cistern 110 are separately managed, even if a water quality problem occurs in one cistern 110, the corresponding cistern 110 is managed independently of other cisterns 110 and thus a danger of mass mortality may be reduced.
Further, eel larvae of the respective cisterns 110 are cut open once a week and growth states of the eel larvae and young eels are observed using a microscope and constructed as a database. The database may be stored in and managed by the integrated management server 135.
With reference to FIGS. 2 and 3, the culture water circulation and purification apparatus 160 serves to purify culture water overflowing each cistern 110 and then to resupply and circulate the purified water to the corresponding cistern 110.
For example, the culture water circulation and purification apparatus 160 installed for the brood stork cisterns 113 may include outlets 117, each of which is provided at one side of the upper portion of the brood stork cistern 113, tubular guide members 161 communicating with the outlets 117, a drain channel 173 starting from an area just under the lower ends of the guide members 161, an aeration tank 165 which accommodates culture water supplied from the drain channel 173 and aerates the culture water with oxygen to control a dissolved oxygen rate in the culture water, sterilization tanks 166 which sterilize the culture water having passed through the aeration tank 165, a deaeration tank 168 which removes carbon dioxide from the culture water having passed through the sterilization tanks 166, and a split loop-type biofilter tank 167 which biofilters the culture water having passed through the deaeration tank 168.
The sterilization tanks 166 may include a first sterilization tank 166a provided with an ultraviolet lamp installed therein, a second sterilization tank 166b provided with an ultraviolet filter installed therein, and a third sterilization tank 166c sterilizing the culture water through ozone supply.
The biofilter tank 167 serves to decompose ammonia, etc., through a biofilter.
However, the above-described sterilization and purification units are merely exemplary and, thus, various known sterilization units and purification units may be added.
FIGS. 5A and 5B are views illustrating a drain channel and ultraviolet irradiation apparatuses provided in a photocatalytic decomposition section in accordance with the present invention, and FIG. 6 is a schematic view illustrating a secondary magnetized water creation unit in accordance with the present invention.
With reference to FIGS. 5A to 6, in the present invention, a magnetized water creation apparatus 170 may be installed in parallel with the culture water circulation and purification apparatus 160.
The magnetized water creation apparatus 170 may be disposed in front of or at the rear of the aeration tank 165, the sterilization tanks 166 and the biofilter tank 167.
In more detail, the magnetized water creation apparatus 170 may include a primary magnetized water creation unit 171 installed at a position spaced apart from the bottom of the drain channel 173 by a designated interval and including a plurality of first magnet members 174, a magnetized water tank 178 to accommodate culture water having passed through the primary magnetized water creation unit 171, a rotation shaft 179 inserted into the magnetized water tank 178, and a secondary magnetized water creation unit 177 including second magnet members 179a installed on the rotation shaft 179.
The primary magnetized water creation unit 171 preliminarily supplies magnetic force to create magnetized water and, then, culture water is magnetized through the secondary magnetized water creation unit 177. If the culture water is magnetized, physiological activity of freshwater eels is improved and, thus, a survival rate or growth rate of freshwater eels may be improved.
Further, culture water overflowing the respective cisterns 110 may join at the drain channel 173, and may be aerated, sterilized and filtered.
For example, since the larva cisterns 111 have the same culture water quality conditions, i.e., the same water temperature, salinity, pH, etc., culture water discharged from the larva cisterns 111 may join and be then purified, and the purified culture water may be distributed to the larva cisterns 111. However, if culture water quality conditions of the cisterns 110, such as water temperatures, salinities, whether or not a sexual maturity hormone is input, etc., are different, the drain channel 173 is divided according to water quality conditions and culture water purification is separately performed.
In more detail, culture water discharged from the brood stork cisterns 113, in which a sexual maturity hormone is put into culture water so as to induce sexual maturation of brood storks, does not join culture water discharged from other cisterns and may be processed through a separate drain channel 173.
For example, if the sexual maturity hormone (17p-estradiol) is put into culture water of the cisterns 110, a photocatalytic decomposition section 175, the surface of which includes a photocatalyst powder, may be formed in at least a partial section of the drain channel 173, along which the culture water containing the sexual maturity hormone is discharged.
Ultraviolet irradiation apparatuses 176 may be installed in the photocatalytic decomposition section 175.
Here, the drain channel 173 may have a structure, the upper surface of which is completely open, as exemplarily shown in FIG. 5B, or have a pipe structure which is isolated from the outside.
FIG. 7 is a schematic view illustrating the feeding apparatus in accordance with the present invention.
With reference to FIG. 7, the feeding apparatus 180 serves to supply feed in a liquid state or a powder state.
The feeding apparatus 180 controls a feed supply amount and a feed kind according to kinds of freshwater eels being bred in the respective cisterns 110 and supplies feed to the cisterns 110 and, thereby, formation of nitrous acid and a nitrate and virus infection caused by decomposition of high-protein feed waste may be observed in real time so as to be thoroughly prevented in advance.
The feeding apparatus 180 may include an air injection unit 181, an air injection pipe 184 provided with one end connected to the air injection unit 181 and the other end inserted into culture water of the cistern 110 so as to inject feed and air, and a feed supply tank 184 communicating with one side of the air injection pipe 182.
The feed supply tank 184 may be disposed above the air injection pipe 182 and be provided with an electronic control valve 183 to control supply of feed.
The air injection unit 181 communicates with the air injection pipe 182 and supplies air of a designated pressure, thus providing driving force to transfer feed supplied from the feed supply tank 184.
As culture water in the cistern 110 is aerated with air supplied from the air injection unit 181, feed is supplied.
If feed is supplied through an air injection method, aeration is intermittently carried out when feed is supplied to the cistern 110 and may thus assist water quality improvement and, particularly, if the cistern 110 has a sealed tub shape, the upper surface of which is closed, the air injection method is more effective.
FIG. 8 is a schematic view illustrating the brood stork cistern in accordance with the present invention.
With reference to FIG. 8, the light control apparatus 119 is installed in the brood stork cistern 113, the upper surface of which is closed, and serves to periodically radiate light.
The cistern, the upper surface of which is closed, for example, the brood stork cistern 113, may minimize effect of external temperature, external lighting, etc. and thus prevent mass mortality. However, the brood stork cistern 113 may be designed so as to be ventilated through a ventilation hole or an air blower fan 113a installed at one side of the upper part of the brood stork cistern 113.
A bottom 114 of the brood stork cistern 113 of the present invention has a tapered cross-section, the width of which is gradually narrowed in the downward direction, and a sediment discharge pipe 115 may be connected to the lowermost end of the brood stork cistern 113.
Further, a net member 116 to pass sediments is installed in the lateral direction on the bottom 114 and prevents eels in the brood stork cistern 113 from entering a region under the net member 116. If the net member 116 is installed, sediments may be intensively collected in the region under the net member 116, the collected sediments are periodically and selectively discharged to the outside through the sediment discharge pipe 115 and, thus, excellent water quality management may be carried out.
Further, a water supply pipe 118 to supply culture water or the air injection pipe 182 are connected to a region of the brook stork cistern 113 above the net member 116, and the outlet 117 to discharge culture water and floating matter may be formed above the water supply pipe 118. By disposing a water supply hole above the net member 116, re-floating of sediments may be maximally prevented and exchange between purified culture water and culture water contained in the brood stork cistern 113 may be more effectively carried out.
Referring again to FIG. 2, the aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT may be installed in an integrated management module including an upper stage 103 and a lower stage 104 provided below the upper stage 103.
At least the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113 divided from each other are provided on the upper stage 103, and culture water discharged from the brood stork cisterns 113 is purified separately from culture water discharged from other cisterns 111 and 112.
Culture water discharged from the respective cisterns 111, 112 and 113 passes through the culture water circulation and purification apparatuses 160 provided on the lower stage 114, and is then re-supplied to the corresponding cisterns 111, 112 and 113 using the pipes and pumps (not shown).
Further, feed is automatically supplied to the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113 through the separate feeding apparatuses 180.
Further, at least one of the water quality measurement instrument 127, the gateway 130 and the integrated management server 135 is installed in the control room 101 provided at one side of the lower stage 104 and all situations at the inside and outside of the larva cisterns 111, the fry cisterns 112 and the brood stork cisterns 113 are integratedly managed through received data.
The larva cisterns 111 may be controlled such that different feed supply amounts are put into the larva cisterns 111 or feed is supplied to the larva cisterns 111 in different feeding cycles and purification cycles and increase and decrease of water quality management steps of the larva cisterns 111 are individualized, because there are differences in larva growth period, individual numbers (densities) of larvae, and mean weights/sizes of individual larva between the respective larva cisterns 111. That is, a plurality of the same kind of cisterns is integrated only for convenience in management but environments optimized according to characteristics of individual cisterns may be provided and a growth rate of eels may be raised through individual water quality management and feed management.
Further, the integrated management server 135 constructs water quality, feed supply amounts, feeding cycles, growth data, etc. as a database and then synthetically evaluates accumulated data using an artificial intelligence program, thereby optimizing an eel aquaculture model having increased growth rate and survival rate.
If farm equipment is integratedly managed and modularized, as such, several kinds of cisterns is installed in one place and, more particularly, on an upper stage and, thus, the cisterns may be easily managed and a highly integrated farm may be designed.
As is apparent from the above description, an eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT in accordance with the present invention transceives important data regarding culture conditions in culture of eels, such as water quality management, feed supply amount/cycle, water temperature, photoperiod, etc., based on ICT so as to remotely monitor states at the inside and outside of a farm in real time, executes integrated management of Leptocephali corresponding to larvae of eels, elvers and adult eels, and greatly improves a growth rate and a survival rate of freshwater eels.
Further, the eel aquaculture system of increasing a growth rate and a survival rate of freshwater eels using ICT in accordance with the present invention suggests a model for systematizing culture of freshwater eels and integratedly managing large-scale culture equipment so as to contribute to increase in farm income, and increases export of freshwater eels through mass production so as to contribute to national economic growth.
Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.
Claims (9)
1. An eel aquaculture system using Information and Communication Technologies (ICT) of increasing a growth rate and a survival rate of freshwater eels, the eel aquaculture system comprising:
cisterns configured to receive culture water and to execute aquaculture of eels;
sensors and cameras installed in the cisterns;
a water quality measurement instrument configured to display and transmit water quality data measured by the sensors and images transmitted from the cameras;
a gateway configured to transmit the water quality data received from the water quality measurement instrument;
an integrated management server configured to store and analyze the water quality data received from the gateway and image data received from the cameras and to transmit the received water quality data and image data and analyzed data; and a user terminal configured to receive the water quality data, the image data and the analyzed data from the integrated management server.
cisterns configured to receive culture water and to execute aquaculture of eels;
sensors and cameras installed in the cisterns;
a water quality measurement instrument configured to display and transmit water quality data measured by the sensors and images transmitted from the cameras;
a gateway configured to transmit the water quality data received from the water quality measurement instrument;
an integrated management server configured to store and analyze the water quality data received from the gateway and image data received from the cameras and to transmit the received water quality data and image data and analyzed data; and a user terminal configured to receive the water quality data, the image data and the analyzed data from the integrated management server.
2. The eel aquaculture system using ICT according to claim 1, further comprising at least one of a culture water control apparatus, a culture water circulation and purification apparatus, a feeding apparatus and a light control apparatus.
3. The eel aquaculture system using ICT according to claim 2, wherein the culture water control apparatus includes:
a seawater supply tank and a freshwater supply tank configured to supply seawater and freshwater to the cisterns so as to maintain culture water in the cisterns as any one of seawater, brackish water and freshwater, to lower salinity in seawater or brackish water, or to raise salinity in brackish water or freshwater;
a heater and cooler installed in each of the cisterns to control a water temperature of the cistern; and a pH control tank connected to the cisterns, the seawater supply tank, the freshwater supply tank or the water circulation and purification apparatus so as to supply pH regulators.
a seawater supply tank and a freshwater supply tank configured to supply seawater and freshwater to the cisterns so as to maintain culture water in the cisterns as any one of seawater, brackish water and freshwater, to lower salinity in seawater or brackish water, or to raise salinity in brackish water or freshwater;
a heater and cooler installed in each of the cisterns to control a water temperature of the cistern; and a pH control tank connected to the cisterns, the seawater supply tank, the freshwater supply tank or the water circulation and purification apparatus so as to supply pH regulators.
4. The eel aquaculture system using ICT according to claim 2, wherein the culture water circulation and purification apparatus:
purifies culture water overflowing each of the cisterns and then resupplies the purified culture water to the corresponding cistern; and includes outlets, each outlet provided at one side of the upper portion of the cistern, guide members communicating with the outlets, a drain channel starting from an area just under the lower ends of the guide members, an aeration tank configured to accommodate culture water supplied from the drain channel and to aerate the culture water to control a dissolved oxygen rate in the culture water, sterilization tanks configured to sterilize the culture water having passed through the aeration tank, and a biofilter tank configured to biofilter the culture water having passed through the sterilization tanks.
purifies culture water overflowing each of the cisterns and then resupplies the purified culture water to the corresponding cistern; and includes outlets, each outlet provided at one side of the upper portion of the cistern, guide members communicating with the outlets, a drain channel starting from an area just under the lower ends of the guide members, an aeration tank configured to accommodate culture water supplied from the drain channel and to aerate the culture water to control a dissolved oxygen rate in the culture water, sterilization tanks configured to sterilize the culture water having passed through the aeration tank, and a biofilter tank configured to biofilter the culture water having passed through the sterilization tanks.
5. The eel aquaculture system using ICT according to claim 4, further comprising a magnetized water creation apparatus configured to magnetize culture water discharged from the cisterns, wherein the magnetized water creation apparatus includes:
a primary magnetized water creation unit installed at a position spaced apart from the bottom of the drain channel by a designated interval and including a plurality of first magnet members;
a magnetized water tank configured to accommodate culture water having passed through the primary magnetized water creation unit;
a rotation shaft inserted into the magnetized water tank; and a secondary magnetized water creation unit including a plurality of second magnet members installed on the rotation shaft.
a primary magnetized water creation unit installed at a position spaced apart from the bottom of the drain channel by a designated interval and including a plurality of first magnet members;
a magnetized water tank configured to accommodate culture water having passed through the primary magnetized water creation unit;
a rotation shaft inserted into the magnetized water tank; and a secondary magnetized water creation unit including a plurality of second magnet members installed on the rotation shaft.
6. The eel aquaculture system using ICT according to claim 1, wherein, if a female hormone is put into culture water of the cisterns, a photocatalytic decomposition section provided with the surface including a photocatalyst powder is formed in at least a partial section of the drain channel to discharge the culture water containing the female hormone, wherein ultraviolet irradiation apparatuses are installed in the photocatalytic decomposition section.
7. The eel aquaculture system using ICT according to claim 2, wherein:
the feeding apparatus includes an air injection unit, an air injection pipe provided with one end connected to the air injection unit and the other end inserted into culture water of the cistern, and a feed supply tank communicating with one side of the air injection pipe, and, as culture water in the cistern is aerated with air supplied from the air injection unit, feed is supplied;
and the light control apparatus is installed in the cistern having a closed upper surface and periodically radiates light.
the feeding apparatus includes an air injection unit, an air injection pipe provided with one end connected to the air injection unit and the other end inserted into culture water of the cistern, and a feed supply tank communicating with one side of the air injection pipe, and, as culture water in the cistern is aerated with air supplied from the air injection unit, feed is supplied;
and the light control apparatus is installed in the cistern having a closed upper surface and periodically radiates light.
8. The eel aquaculture system using ICT according to claim 1, wherein:
the sensors measure at least one of a dissolved oxygen amount, pH, a water temperature, a nitrate content, an ammonia content and salinity;
the eel aquaculture system using ICT further comprises at least one of a culture water control apparatus, a culture water circulation and purification apparatus, a feeding apparatus and a light control apparatus, and a magnetized water creation apparatus configured to magnetize culture water discharged from the cisterns, wherein the culture water control apparatus includes:
a seawater supply tank and a freshwater supply tank configured to supply seawater and freshwater to the cisterns so as to maintain culture water in the cisterns as any one of seawater, brackish water and freshwater, to lower salinity in seawater or brackish water, or to raise salinity in brackish water or freshwater;
a heater and cooler installed in each of the cisterns to control a water temperature of the cistern; and a pH control tank connected to the cisterns, the seawater supply tank, the freshwater supply tank or the water circulation and purification apparatus so as to supply pH regulators, wherein the culture water circulation and purification apparatus:
purifies culture water overflowing each of the cisterns and then resupplies the purified culture water to the corresponding cistern; and includes outlets, each outlet provided at one side of the upper portion of the cistern, guide members communicating with the outlets, a drain channel starting from an area just under the lower ends of the guide members, an aeration tank configured to accommodate culture water supplied from the drain channel and to aerate the culture water to control a dissolved oxygen rate in the culture water, sterilization tanks configured to sterilize the culture water having passed through the aeration tank, and a biofilter tank configured to biofilter the culture water having passed through the sterilization tanks, wherein the magnetized water creation apparatus includes:
a primary magnetized water creation unit installed at a position spaced apart from the bottom of the drain channel by a designated interval and including a plurality of first magnet members;
a magnetized water tank configured to accommodate culture water having passed through the primary magnetized water creation unit;
a rotation shaft inserted into the magnetized water tank; and a secondary magnetized water creation unit including a plurality of second magnet members installed on the rotation shaft, wherein, if a female hormone is put into culture water of the cisterns, a photocatalytic decomposition section provided with the surface including a photocatalyst powder is formed in at least a partial section of the drain channel to discharge the culture water containing the female hormone, and ultraviolet irradiation apparatuses are installed in the photocatalytic decomposition section.
the sensors measure at least one of a dissolved oxygen amount, pH, a water temperature, a nitrate content, an ammonia content and salinity;
the eel aquaculture system using ICT further comprises at least one of a culture water control apparatus, a culture water circulation and purification apparatus, a feeding apparatus and a light control apparatus, and a magnetized water creation apparatus configured to magnetize culture water discharged from the cisterns, wherein the culture water control apparatus includes:
a seawater supply tank and a freshwater supply tank configured to supply seawater and freshwater to the cisterns so as to maintain culture water in the cisterns as any one of seawater, brackish water and freshwater, to lower salinity in seawater or brackish water, or to raise salinity in brackish water or freshwater;
a heater and cooler installed in each of the cisterns to control a water temperature of the cistern; and a pH control tank connected to the cisterns, the seawater supply tank, the freshwater supply tank or the water circulation and purification apparatus so as to supply pH regulators, wherein the culture water circulation and purification apparatus:
purifies culture water overflowing each of the cisterns and then resupplies the purified culture water to the corresponding cistern; and includes outlets, each outlet provided at one side of the upper portion of the cistern, guide members communicating with the outlets, a drain channel starting from an area just under the lower ends of the guide members, an aeration tank configured to accommodate culture water supplied from the drain channel and to aerate the culture water to control a dissolved oxygen rate in the culture water, sterilization tanks configured to sterilize the culture water having passed through the aeration tank, and a biofilter tank configured to biofilter the culture water having passed through the sterilization tanks, wherein the magnetized water creation apparatus includes:
a primary magnetized water creation unit installed at a position spaced apart from the bottom of the drain channel by a designated interval and including a plurality of first magnet members;
a magnetized water tank configured to accommodate culture water having passed through the primary magnetized water creation unit;
a rotation shaft inserted into the magnetized water tank; and a secondary magnetized water creation unit including a plurality of second magnet members installed on the rotation shaft, wherein, if a female hormone is put into culture water of the cisterns, a photocatalytic decomposition section provided with the surface including a photocatalyst powder is formed in at least a partial section of the drain channel to discharge the culture water containing the female hormone, and ultraviolet irradiation apparatuses are installed in the photocatalytic decomposition section.
9. The eel aquaculture system using TCT according to claim 8, further comprising an integrated management module including an upper stage and a lower stage provided below the upper stage, wherein:
at least the cisterns, the guide members and drain channel are installed on the upper stage;
at least the aeration tank, the sterilization tanks, the biofilter tank, the seawater supply tank and the freshwater supply tank are installed on the lower stage; and culture water having passed the drain channel falls into the aeration tank through pipes and culture water having passed through the biofilter tank is resupplied to the cisterns using pumps so as to be circulated.
at least the cisterns, the guide members and drain channel are installed on the upper stage;
at least the aeration tank, the sterilization tanks, the biofilter tank, the seawater supply tank and the freshwater supply tank are installed on the lower stage; and culture water having passed the drain channel falls into the aeration tank through pipes and culture water having passed through the biofilter tank is resupplied to the cisterns using pumps so as to be circulated.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
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| KR1020160061963A KR101704970B1 (en) | 2016-05-20 | 2016-05-20 | Eel nursery device |
| KR10-2016-0061963 | 2016-05-20 | ||
| KR10-2016-0151901 | 2016-11-15 | ||
| KR1020160151901A KR101752608B1 (en) | 2016-11-15 | 2016-11-15 | Eel nursery system |
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| CA2958724A1 true CA2958724A1 (en) | 2017-11-20 |
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| CA2958724A Pending CA2958724A1 (en) | 2016-05-20 | 2017-02-23 | Eel aquaculture system using ict |
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| AU (1) | AU2017201211A1 (en) |
| CA (1) | CA2958724A1 (en) |
| TW (1) | TWI655600B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110024729A (en) * | 2019-04-27 | 2019-07-19 | 黄明杰 | The culture of swamp eel structure of smell and quantitative feeding is disseminated in a kind of utilization |
| CN112655627A (en) * | 2020-12-21 | 2021-04-16 | 王东 | Self-floating type reverse feeding device for aquaculture |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20190133625A (en) * | 2018-05-23 | 2019-12-03 | 제이제이앤구골홀딩스 주식회사 | Integrated management platform of cultivating Freshwater eel |
| CN109220903A (en) * | 2018-09-26 | 2019-01-18 | 中国水产科学研究院南海水产研究所 | A kind of point wing Spanish mackerel parent fish rearing and artificial ripening induced spawning method |
| CN112568200B (en) * | 2021-01-08 | 2022-05-31 | 上海庸别数码通讯有限公司 | A diddle-net for detecting whether fish catches and whether electrified |
| CN112772473B (en) * | 2021-01-29 | 2022-08-09 | 山东滨州恒盛网业有限公司 | Freshwater white pomfret breeding method and breeding net cage |
| CN112931377B (en) * | 2021-02-07 | 2022-08-05 | 金华市广信网络工程有限责任公司 | Fishpond feed feeding control system and method based on image living body recognition |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1237869C (en) * | 2003-12-03 | 2006-01-25 | 中国水产科学研究院黄海水产研究所 | Water treatment method of circulating water fish culture in factory style |
| CN101168455B (en) * | 2006-10-25 | 2010-08-25 | 中国科学院大连化学物理研究所 | Method for catalytically degrading estrogen-like contaminant by simulating natural light |
| CN101331860A (en) * | 2008-07-01 | 2008-12-31 | 郑小非 | Method and device for culturing rice field eel |
| CN101933489B (en) * | 2010-08-24 | 2013-04-03 | 刘青华 | Water circulation system and method for breeding marine fishes inland |
| TW201332435A (en) * | 2012-02-01 | 2013-08-16 | Chunghwa Telecom Co Ltd | System and method for monitoring fish farm and waterwheel |
| CN105393959B (en) * | 2015-11-20 | 2018-03-13 | 上海第二工业大学 | A kind of totally-enclosed high density small size pond fully-automatic intelligent aquaculture system |
-
2017
- 2017-02-22 AU AU2017201211A patent/AU2017201211A1/en not_active Abandoned
- 2017-02-23 TW TW106106062A patent/TWI655600B/en active
- 2017-02-23 CA CA2958724A patent/CA2958724A1/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110024729A (en) * | 2019-04-27 | 2019-07-19 | 黄明杰 | The culture of swamp eel structure of smell and quantitative feeding is disseminated in a kind of utilization |
| CN112655627A (en) * | 2020-12-21 | 2021-04-16 | 王东 | Self-floating type reverse feeding device for aquaculture |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI655600B (en) | 2019-04-01 |
| TW201741978A (en) | 2017-12-01 |
| AU2017201211A1 (en) | 2017-12-07 |
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