CA2000443A1 - Breeding facility for marine animals, particularly fish - Google Patents
Breeding facility for marine animals, particularly fishInfo
- Publication number
- CA2000443A1 CA2000443A1 CA002000443A CA2000443A CA2000443A1 CA 2000443 A1 CA2000443 A1 CA 2000443A1 CA 002000443 A CA002000443 A CA 002000443A CA 2000443 A CA2000443 A CA 2000443A CA 2000443 A1 CA2000443 A1 CA 2000443A1
- Authority
- CA
- Canada
- Prior art keywords
- water
- tank
- fish
- well
- fish farm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 241000251468 Actinopterygii Species 0.000 title claims abstract description 33
- 241001465754 Metazoa Species 0.000 title claims abstract description 5
- 238000009395 breeding Methods 0.000 title claims abstract description 5
- 230000001488 breeding effect Effects 0.000 title claims abstract description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 239000013505 freshwater Substances 0.000 claims abstract description 6
- 241000252233 Cyprinus carpio Species 0.000 claims description 9
- 239000003673 groundwater Substances 0.000 claims description 5
- 235000019688 fish Nutrition 0.000 description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 8
- 239000003814 drug Substances 0.000 description 5
- 229910021529 ammonia Inorganic materials 0.000 description 4
- 235000015097 nutrients Nutrition 0.000 description 3
- 238000009372 pisciculture Methods 0.000 description 3
- 241000881711 Acipenser sturio Species 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 244000045947 parasite Species 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 241000972773 Aulopiformes Species 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- 241000428198 Lutrinae Species 0.000 description 1
- 241000242583 Scyphozoa Species 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000009313 farming Methods 0.000 description 1
- 230000004720 fertilization Effects 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 210000002816 gill Anatomy 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 235000019515 salmon Nutrition 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 230000002485 urinary effect Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/10—Culture of aquatic animals of fish
- A01K61/13—Prevention or treatment of fish diseases
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/10—Cleaning bottoms or walls of ponds or receptacles
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Zoology (AREA)
- Farming Of Fish And Shellfish (AREA)
- Fodder In General (AREA)
Abstract
A b s t r a c t A breeding facility (fish farm) for marine animals, particularly fish, comprising a tank (1) with a preferably circular cross-section, designed to be filled with water to a certain level (7).
The fish farm comprises the following combination:
a) that it is connected to a circulation pump (4) of the air lift type with an inlet (5) near the bottom of the tank (1) and an outlet (6) near the surface (7) of the water in the tank (1), b) that it is connected to a supply pipe or pipes (12) for fresh water and a discharge pipe (10) to provide for a renewal of the water in the tank over time, c) that the inlet (6) from the pump is directed tangentially or approximately tangentially within the tank to provide a con-stant, circulating current in the water, d) that in the bottom there is provided a well (13) centrally located in the tank for collection of excrements and feed remains and other impurities, and e) that to the well (13) is connected a suction pipe for the removal of impurities.
The fish farm comprises the following combination:
a) that it is connected to a circulation pump (4) of the air lift type with an inlet (5) near the bottom of the tank (1) and an outlet (6) near the surface (7) of the water in the tank (1), b) that it is connected to a supply pipe or pipes (12) for fresh water and a discharge pipe (10) to provide for a renewal of the water in the tank over time, c) that the inlet (6) from the pump is directed tangentially or approximately tangentially within the tank to provide a con-stant, circulating current in the water, d) that in the bottom there is provided a well (13) centrally located in the tank for collection of excrements and feed remains and other impurities, and e) that to the well (13) is connected a suction pipe for the removal of impurities.
Description
The present invention relates to a breeding facility for marine animals, particularly fish, comprising a tank with a preferably circular cross- section designed to be filled with water up to a certain level. The facility may be land-based or may consist of a sealed tank or bag that is submerged in water.
The majority of breeding facilities for consumer Eish found today are so-called fish farm ponds, enclosures which are placed in the sea. These pond enclosures consist of a net bag, and water is renewed with the aid of the natural current in the water. There are consequently some strict limitations with regard to placement of such fish farms since, first of all, there must be sufficient-ly strong current -- without its being too strong, there must not be too much sea, and it must not be too shallow or too confined.
Fish farms of this type put a very heavy strain on the sea envir-onment. The fish farms polute to quite a high degree because of excrements from the fish and feed remains that float out into the surrounding water through the walls of the net bag. Fish in captivity are readily susceptible to various diseases and para-sites, and large quantities of medicaments are therefore used in connection with the fish farming industry. These medicaments are oEten administered in the feed, and will spread into the sur-rounding water where the medicaments are consumed by wild fish, sea Eowl and animals -- for example, otters -- that hunt the fish in the ponds or outside these enclosures. It is ~uite conceiv-able that resistant groups of bacteria could arise, which could result in irreparable damage to the environment and which might also be transmitted to humans. The fish in the open ponds are moreover vulnerable to contagion from wi.ld fish, and to para-sites. ~ieav~ alga growth, high incidence of jellyfish and the like can cause catastrophic death rate of fish in the farming ponds.
The purpose of the present invention is primarily to eliminate
The majority of breeding facilities for consumer Eish found today are so-called fish farm ponds, enclosures which are placed in the sea. These pond enclosures consist of a net bag, and water is renewed with the aid of the natural current in the water. There are consequently some strict limitations with regard to placement of such fish farms since, first of all, there must be sufficient-ly strong current -- without its being too strong, there must not be too much sea, and it must not be too shallow or too confined.
Fish farms of this type put a very heavy strain on the sea envir-onment. The fish farms polute to quite a high degree because of excrements from the fish and feed remains that float out into the surrounding water through the walls of the net bag. Fish in captivity are readily susceptible to various diseases and para-sites, and large quantities of medicaments are therefore used in connection with the fish farming industry. These medicaments are oEten administered in the feed, and will spread into the sur-rounding water where the medicaments are consumed by wild fish, sea Eowl and animals -- for example, otters -- that hunt the fish in the ponds or outside these enclosures. It is ~uite conceiv-able that resistant groups of bacteria could arise, which could result in irreparable damage to the environment and which might also be transmitted to humans. The fish in the open ponds are moreover vulnerable to contagion from wi.ld fish, and to para-sites. ~ieav~ alga growth, high incidence of jellyfish and the like can cause catastrophic death rate of fish in the farming ponds.
The purpose of the present invention is primarily to eliminate
2~ 9L3 the above mentioned disadvan~ages and to optimize fish farming with regard to both land-based systems and water based ~acili-ties. This is achieved according to the invention by a fish farm facility of the type mentioned introductorily, which is charac-terized by the combination of the following features:
a) that it is connected to a circulation pump with an inlet near the bottom oE the tank and an outlet near the surface of the water in the tank, b) that it is connected to a supply pipe or pipes for fresh water and a discharge pipe to provide for a renewal of the water over time, c) that the inlet from the pump is directed tangentially or approximately at a tangent within the tank to provide a constant, circulating current in the water, d) that in the bottom there is provided a well for collection of excrements and feed remains and other impurities, and e) that to the well is connected a suction pipe for the removal oE the impurities.
Addi.tonal features and advantages will be disclosed in the depen-dent claims.
Several advantages are achieved by means of the facility in accordance with the invention. First, one gains control of the environment, both in the Eish earm itself and --- in the case of a water-based system ~- in the surrounding milieu. The constant whirlpool in the container or tank wi.11 collect solid particles centrally at the bottom and will trap them in the well, from which the impurities can be transported out through the suction pipe.
~y circulatirl~ the water through an air lif-t pump one can achieve purification oE the water. The air lift pump, of course, func-tions by blowin~ in large quantities of air that rise up through a vertical pipe as bubbles. The fish take in oxygen from the water by means of their gills and discharge C02 together with urinary products, particularly in the form of ammonia. When water containing C02 and ammonia is sucked into the air lift pump, the C02 gas will be taken up by the rising air bubbles.
The same thing will happen to some extent with regard to ammonia and other substances. The most important thing, however, is that the water is ridded of C02. This air that flows in at the sur-face of the tank is air-enriched so that one constantly obtains a new supply of ox;rgen-enriched water. The water in the fish farm is thus circulated the entire time and is freed of C02 and en-riched with air. Smaller amounts of new water are being supplied the whole time, essentially in order to hold the ammonia content in the water at an acceptable level. Because there are used only small amounts of fresh water, it would be expedient to maintain a higher temperature in the system, at least in certain periods of the year. In this connection a heat pump can be used, inasmuch as the heat in the discharged water and/or the heat in the surround-ing water can be utilized, in the case of a water-based system.
The fish farm in accordance with the invention would in addition be very suitable as a land-based facilit5r, which is quite advan-tageous from the point of view of several other conditions. The objections to a land-based system have been that pumping Oe flow-ing water Erom a nearby water source has been very demanding in terms of energy. With the system according to the invention, the water circulates through the air lift pump without requiring any energy to lift the water, and fresh water is added in only small amounts, which thus requires little energy. The system is totally controlled with regard to any strain on the outside environment, and also with regard to the infll~ence of the outside environment on the fish within the facility.
Where a sea-based system is concerned, the small amount of water 2~QgL43 that is necessary in order to replenish the water in the tank could be taken from remote places; if, for example, the surface water is polluted or too cold or too warm, the water can be taken from deeper lying layers. Due to the fact that we are talking about small amounts of water, the pumping costs would be rela-tively modest.
The system has been the object of particular interest in areas where warm ground water is found. In a fish farm according to the invention, located in an area where there is access to warm ground water, consumer fish of very valuable types that have a high price on the market can be farmed. E~ere one thinks primar-ily of sturgeon, which brings 2 to 3 times as high a price as salmon on an international market. The sturgeon requires a water temperature of about 25C, and this can very easily be obtained with the aid of warm ground water in Southern European countries where there is rich access to warm ground water at a relativel~
modest depth below the ground level.
In accordance with a further development of the invention, carp pools may be attached to the s~stem. The pipe Erom the well that is placed at the bottorn leads to the carp pool, and the same per-tains to water Erom the olltlet from the tank. These pipes will carry large quantities of nutrients to the water in the carp pools. The carp in a carp pool are not given feed, bllt live ex-clusively on the vegetation that grows in the carp pool. In order to achieve sufficLent growth, lar~e quantities of nutrients must be added. ~n accordarlce with the invention these nutrients can be supplied at no cost from the fish farm.
The invention will now be explained more fully in the following, with reference to the drawing that schematically shows an embodi-ment form for a fish farm according to the invention.
Figure 1 shows the fish farm seen in perspective with some of the wall cut away, and Figure 2 shows the fish farm seen from directly above.
The fish farm according to the invention consists of a tank 1 with a circular wall 2 and a bottom 3. To the tank 1 is con-nected an air liftpump 4 with an intake 5 at the bottom of the tank 1. The outlet 6 from the air lift pump passes through the wall of the tank in the proximity of the surface 7 of the water fill in the tank. The inlet pipe 8 is directed tangentially within the tank so that a whirlpool current is formed in the water in the tank, as shown with arrows 9. The water level in the tank is regulated by an overflow pipe 10. Air to the air lift pump is supplied through an air conduit 11 and water supply for renewal of the water in the tank is brought in through the pipes 12.
In the bottom of the tank is provided a well 13 having a filter 1~. To the well 13 is connected a suction pipe lS.
By means oE the air lift pump, continuous circulation of the water in the tank 1 is obtained. At the same time, the water is oxygenated by means oE the air bubbles in the air lift pump, and the water is cleaned by virtue of the C02 in the water being taken up in the air bubbles floating up and passing out into the open air. Through the supply pipes the water is renewed over time. The water that is added may be heated to maintain a con-stant temperature in the water in the tank. The polluted water that runs out from the tank through the overflow pipe 10 can go either to carp pools or to a purifying plant. The pipe 15 that sucks out solid impurities from the well 13 can go to the build-up of Eertilizer or to carp pools for their fertilization. The whirling current collects pollutants, such as feed remains and ~Q~3 excrements from the fish, centrally in the tank, and these will descend and be gathered into the well 13.
As will be understood, one would be able to obtain full control with a fish farming facility according to the invention. There is used a sealed tank or bag, so that no contaminants are brought into the surroundiny environment. Excrements and feed remains that descend into the well are pumped to a plant that takes care of these substances as fertilizers. The overflow water, which is only very slightly polluted, can be conducted to a conventional purifying plant for waste water. As regards those periods when the fish have been given medication, the tank can be drained completely after the medicating and replenished with fresh water.
The water that is contaminated by medicines can be purified in a special facility.
a) that it is connected to a circulation pump with an inlet near the bottom oE the tank and an outlet near the surface of the water in the tank, b) that it is connected to a supply pipe or pipes for fresh water and a discharge pipe to provide for a renewal of the water over time, c) that the inlet from the pump is directed tangentially or approximately at a tangent within the tank to provide a constant, circulating current in the water, d) that in the bottom there is provided a well for collection of excrements and feed remains and other impurities, and e) that to the well is connected a suction pipe for the removal oE the impurities.
Addi.tonal features and advantages will be disclosed in the depen-dent claims.
Several advantages are achieved by means of the facility in accordance with the invention. First, one gains control of the environment, both in the Eish earm itself and --- in the case of a water-based system ~- in the surrounding milieu. The constant whirlpool in the container or tank wi.11 collect solid particles centrally at the bottom and will trap them in the well, from which the impurities can be transported out through the suction pipe.
~y circulatirl~ the water through an air lif-t pump one can achieve purification oE the water. The air lift pump, of course, func-tions by blowin~ in large quantities of air that rise up through a vertical pipe as bubbles. The fish take in oxygen from the water by means of their gills and discharge C02 together with urinary products, particularly in the form of ammonia. When water containing C02 and ammonia is sucked into the air lift pump, the C02 gas will be taken up by the rising air bubbles.
The same thing will happen to some extent with regard to ammonia and other substances. The most important thing, however, is that the water is ridded of C02. This air that flows in at the sur-face of the tank is air-enriched so that one constantly obtains a new supply of ox;rgen-enriched water. The water in the fish farm is thus circulated the entire time and is freed of C02 and en-riched with air. Smaller amounts of new water are being supplied the whole time, essentially in order to hold the ammonia content in the water at an acceptable level. Because there are used only small amounts of fresh water, it would be expedient to maintain a higher temperature in the system, at least in certain periods of the year. In this connection a heat pump can be used, inasmuch as the heat in the discharged water and/or the heat in the surround-ing water can be utilized, in the case of a water-based system.
The fish farm in accordance with the invention would in addition be very suitable as a land-based facilit5r, which is quite advan-tageous from the point of view of several other conditions. The objections to a land-based system have been that pumping Oe flow-ing water Erom a nearby water source has been very demanding in terms of energy. With the system according to the invention, the water circulates through the air lift pump without requiring any energy to lift the water, and fresh water is added in only small amounts, which thus requires little energy. The system is totally controlled with regard to any strain on the outside environment, and also with regard to the infll~ence of the outside environment on the fish within the facility.
Where a sea-based system is concerned, the small amount of water 2~QgL43 that is necessary in order to replenish the water in the tank could be taken from remote places; if, for example, the surface water is polluted or too cold or too warm, the water can be taken from deeper lying layers. Due to the fact that we are talking about small amounts of water, the pumping costs would be rela-tively modest.
The system has been the object of particular interest in areas where warm ground water is found. In a fish farm according to the invention, located in an area where there is access to warm ground water, consumer fish of very valuable types that have a high price on the market can be farmed. E~ere one thinks primar-ily of sturgeon, which brings 2 to 3 times as high a price as salmon on an international market. The sturgeon requires a water temperature of about 25C, and this can very easily be obtained with the aid of warm ground water in Southern European countries where there is rich access to warm ground water at a relativel~
modest depth below the ground level.
In accordance with a further development of the invention, carp pools may be attached to the s~stem. The pipe Erom the well that is placed at the bottorn leads to the carp pool, and the same per-tains to water Erom the olltlet from the tank. These pipes will carry large quantities of nutrients to the water in the carp pools. The carp in a carp pool are not given feed, bllt live ex-clusively on the vegetation that grows in the carp pool. In order to achieve sufficLent growth, lar~e quantities of nutrients must be added. ~n accordarlce with the invention these nutrients can be supplied at no cost from the fish farm.
The invention will now be explained more fully in the following, with reference to the drawing that schematically shows an embodi-ment form for a fish farm according to the invention.
Figure 1 shows the fish farm seen in perspective with some of the wall cut away, and Figure 2 shows the fish farm seen from directly above.
The fish farm according to the invention consists of a tank 1 with a circular wall 2 and a bottom 3. To the tank 1 is con-nected an air liftpump 4 with an intake 5 at the bottom of the tank 1. The outlet 6 from the air lift pump passes through the wall of the tank in the proximity of the surface 7 of the water fill in the tank. The inlet pipe 8 is directed tangentially within the tank so that a whirlpool current is formed in the water in the tank, as shown with arrows 9. The water level in the tank is regulated by an overflow pipe 10. Air to the air lift pump is supplied through an air conduit 11 and water supply for renewal of the water in the tank is brought in through the pipes 12.
In the bottom of the tank is provided a well 13 having a filter 1~. To the well 13 is connected a suction pipe lS.
By means oE the air lift pump, continuous circulation of the water in the tank 1 is obtained. At the same time, the water is oxygenated by means oE the air bubbles in the air lift pump, and the water is cleaned by virtue of the C02 in the water being taken up in the air bubbles floating up and passing out into the open air. Through the supply pipes the water is renewed over time. The water that is added may be heated to maintain a con-stant temperature in the water in the tank. The polluted water that runs out from the tank through the overflow pipe 10 can go either to carp pools or to a purifying plant. The pipe 15 that sucks out solid impurities from the well 13 can go to the build-up of Eertilizer or to carp pools for their fertilization. The whirling current collects pollutants, such as feed remains and ~Q~3 excrements from the fish, centrally in the tank, and these will descend and be gathered into the well 13.
As will be understood, one would be able to obtain full control with a fish farming facility according to the invention. There is used a sealed tank or bag, so that no contaminants are brought into the surroundiny environment. Excrements and feed remains that descend into the well are pumped to a plant that takes care of these substances as fertilizers. The overflow water, which is only very slightly polluted, can be conducted to a conventional purifying plant for waste water. As regards those periods when the fish have been given medication, the tank can be drained completely after the medicating and replenished with fresh water.
The water that is contaminated by medicines can be purified in a special facility.
Claims
THE EMBODIMENTS OF THE INVENTION IN WHICH AN EXCLUSIVE
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1.
A breeding facility (fish farm) for marine animals, particularly fish, comprising a tank (l) with a preferably circular cross-section designed to be filled with water up to a certain level (7), c h a r a c t e r i z e d b y a combination of the following features:
a) that it is connected to a circulation pump (4) with an inlet (5) near the bottom of the tank (1) and an outlet (6) near the surface (7) of the water in the tank (1), b) that it is connected to a supply pipe or pipes (12) for fresh water and a discharge pipe (10) to provide a renewal of the water in the tank over time, c) that the inlet (6) from the pump is directed tangentially or approximately at a tangent within the tank to provide a constant, circulating current in the water, d) that in the bottom there is provided a well (13) centrally located in the tank for collection of excrements and feed remains and other impurities, and e) that to the well (13) is connected a suction pipe for the removal of impurities.
2.
A fish farm according to claim 1, c h a r a c t e r i z e d i n that the circulation pump (4) is of the air lift type.
3.
A fish farm according to claim 1, c h a r a c t e r i z e d i n that the discharge pipe (10) from the tank (1) and the suction pipe (15) from the well (13) lead to one or more carp pools or the like which are located near the tank (1).
4.
A fish farm according to claim 1 or 2, where the tank is located on land, c h a r a c t e r i z e d i n that the water supply consists entirely or partially of warm ground water.
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1.
A breeding facility (fish farm) for marine animals, particularly fish, comprising a tank (l) with a preferably circular cross-section designed to be filled with water up to a certain level (7), c h a r a c t e r i z e d b y a combination of the following features:
a) that it is connected to a circulation pump (4) with an inlet (5) near the bottom of the tank (1) and an outlet (6) near the surface (7) of the water in the tank (1), b) that it is connected to a supply pipe or pipes (12) for fresh water and a discharge pipe (10) to provide a renewal of the water in the tank over time, c) that the inlet (6) from the pump is directed tangentially or approximately at a tangent within the tank to provide a constant, circulating current in the water, d) that in the bottom there is provided a well (13) centrally located in the tank for collection of excrements and feed remains and other impurities, and e) that to the well (13) is connected a suction pipe for the removal of impurities.
2.
A fish farm according to claim 1, c h a r a c t e r i z e d i n that the circulation pump (4) is of the air lift type.
3.
A fish farm according to claim 1, c h a r a c t e r i z e d i n that the discharge pipe (10) from the tank (1) and the suction pipe (15) from the well (13) lead to one or more carp pools or the like which are located near the tank (1).
4.
A fish farm according to claim 1 or 2, where the tank is located on land, c h a r a c t e r i z e d i n that the water supply consists entirely or partially of warm ground water.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO88884542A NO884542L (en) | 1988-10-12 | 1988-10-12 | DEVICE FOR FARMING INSTALLATIONS FOR MARINE ANIMALS, SPECIAL FISH. |
| NO884542 | 1988-10-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2000443A1 true CA2000443A1 (en) | 1990-04-12 |
Family
ID=19891321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002000443A Abandoned CA2000443A1 (en) | 1988-10-12 | 1989-10-11 | Breeding facility for marine animals, particularly fish |
Country Status (4)
| Country | Link |
|---|---|
| AU (1) | AU4320989A (en) |
| CA (1) | CA2000443A1 (en) |
| NO (1) | NO884542L (en) |
| WO (1) | WO1990003729A1 (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000032038A1 (en) | 1998-11-30 | 2000-06-08 | Future Sea Technologies Inc. | Tank cleaning system |
| CN106508780A (en) * | 2016-11-08 | 2017-03-22 | 中国水产科学研究院渔业机械仪器研究所 | Solar water lifting and returning device between adjacent aquaculture ponds |
| CN108713523A (en) * | 2018-03-29 | 2018-10-30 | 上海海洋大学 | A kind of bio-toilet module for pond culture |
| CN108719172A (en) * | 2018-03-29 | 2018-11-02 | 上海海洋大学 | A kind of pond culture circulatory system based on bio-toilet module |
| CN109526841A (en) * | 2017-09-20 | 2019-03-29 | 贵港市瑞成科技有限公司 | A kind of sea-farming feed coefficient |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NO175341C (en) * | 1992-07-20 | 1994-10-05 | Geir L Kjersem | Method of supplying water to a closed cage, forming a closed cage and using the cage to practice the method |
| GB0218024D0 (en) * | 2002-08-02 | 2002-09-11 | Viking Fish Farms Ltd | A system for rearing fish |
| CN100420376C (en) * | 2005-08-18 | 2008-09-24 | 中国水产科学研究院黄海水产研究所 | Water level automatic control method and control system of industrial circulating water fish pond |
| GB2462691A (en) * | 2008-08-23 | 2010-02-24 | Ivor Edward Holme | Fish farming system |
| CN103704165B (en) * | 2013-12-25 | 2016-06-22 | 浙江海洋学院 | Air-free stone Cultivation container |
| NO343073B1 (en) * | 2017-02-14 | 2018-10-29 | Rognsoey Richard | A container arrangement for fish farming |
| CN115088671B (en) * | 2022-07-11 | 2023-11-07 | 通威股份有限公司 | Pond internal circulation culture system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU789082A1 (en) * | 1979-03-26 | 1980-12-23 | Московский Ордена Ленина И Ордена Трудового Красного Знамени Государственный Университет Им.М.В. Ломоносова | Installation for fish breeding |
| NO160753C (en) * | 1986-07-01 | 1989-05-31 | Knutsen R W | PROCEDURE AND APPARATUS FOR USE IN CLEANING OF WATER IN FISHING CUSTOMERS. |
| FR2601555A1 (en) * | 1986-07-15 | 1988-01-22 | Faucoup Roger | Installation in particular for filtering and oxygenating water in fish tanks |
| GB2200822B (en) * | 1987-02-11 | 1991-01-30 | Ragnar Vadseth | Farming enclosures |
-
1988
- 1988-10-12 NO NO88884542A patent/NO884542L/en unknown
-
1989
- 1989-10-09 WO PCT/NO1989/000107 patent/WO1990003729A1/en unknown
- 1989-10-09 AU AU43209/89A patent/AU4320989A/en not_active Abandoned
- 1989-10-11 CA CA002000443A patent/CA2000443A1/en not_active Abandoned
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000032038A1 (en) | 1998-11-30 | 2000-06-08 | Future Sea Technologies Inc. | Tank cleaning system |
| US6093320A (en) * | 1998-11-30 | 2000-07-25 | Future Sea Technologies Inc | Tank cleaning system |
| CN106508780A (en) * | 2016-11-08 | 2017-03-22 | 中国水产科学研究院渔业机械仪器研究所 | Solar water lifting and returning device between adjacent aquaculture ponds |
| CN106508780B (en) * | 2016-11-08 | 2019-04-12 | 中国水产科学研究院渔业机械仪器研究所 | A kind of solar energy water lift water recovery apparatus between adjacent cultivating pool |
| CN109526841A (en) * | 2017-09-20 | 2019-03-29 | 贵港市瑞成科技有限公司 | A kind of sea-farming feed coefficient |
| CN108713523A (en) * | 2018-03-29 | 2018-10-30 | 上海海洋大学 | A kind of bio-toilet module for pond culture |
| CN108719172A (en) * | 2018-03-29 | 2018-11-02 | 上海海洋大学 | A kind of pond culture circulatory system based on bio-toilet module |
| CN108713523B (en) * | 2018-03-29 | 2021-04-20 | 上海海洋大学 | An ecological toilet module for pond culture |
| US11297808B2 (en) | 2018-03-29 | 2022-04-12 | Shanghai Ocean University | Pond culture circulation system based on bio-toilet module |
Also Published As
| Publication number | Publication date |
|---|---|
| AU4320989A (en) | 1990-05-01 |
| NO884542D0 (en) | 1988-10-12 |
| WO1990003729A1 (en) | 1990-04-19 |
| NO884542L (en) | 1990-04-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |