WO2014123424A1 - Enclos maritime tubulaire mobile - Google Patents

Enclos maritime tubulaire mobile Download PDF

Info

Publication number
WO2014123424A1
WO2014123424A1 PCT/NO2014/000015 NO2014000015W WO2014123424A1 WO 2014123424 A1 WO2014123424 A1 WO 2014123424A1 NO 2014000015 W NO2014000015 W NO 2014000015W WO 2014123424 A1 WO2014123424 A1 WO 2014123424A1
Authority
WO
WIPO (PCT)
Prior art keywords
tube
water
pipe
vertical axis
mooring
Prior art date
Application number
PCT/NO2014/000015
Other languages
English (en)
Inventor
Kjell Lorentsen
Original Assignee
Gigante Havbruk As
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gigante Havbruk As filed Critical Gigante Havbruk As
Publication of WO2014123424A1 publication Critical patent/WO2014123424A1/fr
Priority to DK201470607A priority Critical patent/DK178450B1/da

Links

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
    • A01K61/00—Culture of aquatic animals
    • A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
    • 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

Definitions

  • the present invention relates to an apparatus, a fish farm and a method for breeding of aquatic organisms.
  • aquatic organisms means such as fish, molluscs, crustaceans and echinoderms that live in water. Many of these needs flowing water, for example for supply of oxygen and fodder which the organisms filters out of the flow.
  • a traditional cage for use in water is in principle one net bag suspended from a float collar. Water flows freely through the net bag, adds oxygen and removes waste.
  • problems associated with such cages such that parasites get into the cage, and feed residues, nutrients, feces and drug get out.
  • the problems increase if there is little space between the cages in an area, partly because the parasites have relatively short distance between the cages and because a high concentration of nutrients can cause algae growth and subsequent oxygen-poor water in the area.
  • Other problems are parasites that are resistant to drugs, genetic pollution and reputation -> problems.
  • Salmon is one of the species which need flowing water, in this case to increase the quality of the meat.
  • a rule of thumb is water flow equivalent to about one fish length per second, ie. about 0.2 m / s for smolt at 20 cm and 0.5 m / s for salmon 50cm.
  • a closed pen can have a tight enclosure in addition to or instead of an open pen net, or it may have rigid walls.
  • a closed cage produced water stream typically by pumping water into the cage. Fresh water can be collected from depths where there are few or no parasites. Waste can be pumped out from the bottom of the cage and further processed. Pumping water increases operating costs compared with open cages, and is a major reason why open pens is still the most commonly used for farmed salmon. It is believed that similar problems have occurred or will occur during the breeding of other species of fish, shellfish, etc.
  • An object of the present invention is to provide an apparatus and method which solves at least one of the problems above.
  • Figures 2a and b show alternative cross-section of the apparatus of Figure 1, and Figure 3 illustrates a fish farm using the apparatus.
  • FIG. 1 Figures are schematic drawings which are intended to illustrate the key components and principles. They are not necessarily to scale, and numerous details have been omitted for the sake of clarity.
  • salmon farming is an example, and the phrase " aquatic organisms " in the claims also include other species, including shellfish, crustaceans and echinoderms.
  • the device can be deployed in a fjord, a lake with fresh water etc.
  • Figure 1 shows an apparatus according to the invention seen from above.
  • the main body of the apparatus is a tube 100 major tubes are typically composed of plates welded against each rib sections, in turn, joined together into a finished tube, such as by welding or by flanges which are glued and / or screwed together.
  • the tube is made of polyethylene, another plastic material or a composite material.
  • Tube walls are watertight. Thus, a water flow inside the tube extends through the entire length of the tube and does not penetrate through walls. Parasites cannot penetrate into the tube through the waterproof tube walls.
  • Figure 1 also shows a plurality of longitudinal strain reliefs 110, and an optional power supply unit 130 on the top of the tube 100
  • a mooring line 120 is connected to the strain relief 110
  • the device may be moored at anchor in the one end of the anchor line to the right of Figure 1 anchored in the seabed in a known manner. If the apparatus is placed in a water stream, such as produced by tidal or wind, the tube 100 will align itself with the longitudinal axis of the dominating direction in situ. Moreover, if a water stream presses towards the left on the right side of the tube in Figure 1 the strain relief 110 will press in the opposite direction, eg to the right of the tube's left end. The tube 100 is in other words compressed in the lengthwise direction by the strain relief 110 transferring power to the tube's rearward end. This reduces the tensile load at joints, flanges or equivalent tubes 100
  • the apparatus preferably includes means for providing a flow of water in the tube, eg a relative movement between the tube wall and the water inside the tube 100
  • a power supply unit 130 that drives the propellers 132.
  • a current is provided by means of flow pumps as mentioned.
  • the tube 100 is instead driven forward in the water by propellers 132.
  • the same relative flow velocity between the water and the tube inner wall is achieved with significantly less power than if the water should run at the same speed through a stationary tube.
  • Power supply unit 130 preferably contains batteries to power the propellers 132 via electric motors.
  • device 130 include, for example, an internal combustion engine connected to the propeller 132 through a drive train or through a generator and electric motors.
  • the tube 100 may also have position stabilizers (not shown). Their purpose is to prevent a cylindrical or nearly square tube rotates about a horizontal axis of rotation, for example to ensure that the power supply unit 130 is constantly situated over the water surface.
  • the position stabilizers can be produced in any known manner, such as by weights in or under the bottom of the tube 100 or outliers with pontoons.
  • the tube 100 is raised and lowered in the water.
  • the tube is deeper in heavy seas or strong winds.
  • the buoyancy is controlled in known manner with vertical and / or ballast tanks, for example, the entire apparatus is given a slight positive buoyancy regulated by pumping water into or out of the ballast tanks. This is well known to those skilled in the art and is not described further here.
  • a number of longitudinal strain reliefs 110 takes up the tension in the tube 100 such that the requirements for the tensile strength in the tube walls and joints are reduced.
  • the strain reliefs 110 are spaced around the circumference of the tube.
  • Figures 2a and b show two strain reliefs 110 which extend crosswise over the proximal end of tube 100
  • Other embodiments, such as strain reliefs embedded in the walls of the tubes is possible.
  • the strain reliefs 110 may be wire or nylon rope, or they can be designed as fins or ribs in the longitudinal direction. Selection of the number of strain reliefs 110 and design of them is left to experts.
  • the ends of the tube 100 are completely or partially closed by a lice net. These are nets that shut out lice and any other major parasites, and therefore have significantly less mesh width than the above networks to keep the fish inside the tube.
  • the ends are partially closed with plates that prevent the flow of water into the upper part of the tube.
  • the plates may be formed into a bow, a drop or similar for reducing water resistance against the end of tube 100 as possible.
  • the ends of the tube 100 closes partially plates must be taken into particular consideration to ensure adequate water flow into the volume in which the aquatic organisms, such as swimming salmon located.
  • the tube 100 is a sorting network that covers the tube inner cross-section and is disposed axially slidably in the tube.
  • the sorting net has a mesh size small enough that the larger the fish slides in front of the net to an exit pumping area, for example, below the flap 105 to the right in Figure 1, where it can be retrieved.
  • the sorting net has also large enough mesh size so that fish under a minimum measure slip through the mesh. Small fish passes thus through the meshes of the sorting grid and can be fed on the tube 100 before being retrieved.
  • the fodder supply is regulated by detecting the amount of uneaten fodder at the outlet.
  • Figure 3 shows a fish farm with an apparatus, represented by the tube 100 which is moored at an mooring point 121 on the seabed with a mooring line 120
  • the mooring line 120 is long enough to allow the tube to be moved in a circle about a vertical axis through the mooring point 121 as illustrated by the dotted circle in Figure 3.
  • Buoys, anchors and other known items on or at the mooring line 120 and mooring point 121 is outside the scope of this invention and are not a part of figure 3
  • An apparatus for salmon could for example have a tube with a length of about 100m, a diameter of 20m and the circle in Figure 3 may have a radius of about 500m.
  • the fish At salmon farms it is appropriate that the fish have access to air within the tube as described above. In this case tube 100 therefore lay at or near the water surface.
  • a similar arrangement for shellfish farming can have neutral buoyancy and moved completely submerged around the vertical axis through the anchor point 121 at the daily operations.
  • the device may in this case be given positive buoyancy so that inspection hatches 105 ( Figure 1) are easily accessible from the surface.
  • the tube 100 closed at the upper side, so that parasites and impurities do not enter if a wave would wash over.
  • the long anchor line 120 also concerns undulations without major problems. If the power supply 130 fails, for example when a battery becomes discharged, the tube 100 conform to the dominant flow at the site as described above. This will lead to increased local pollution in a short period of time until normal operation is resumed, and probably makes little or no damage to the organisms inside the tube.
  • the invention in another aspect, relates to a method for rearing water - dwelling organisms.
  • the method includes anchoring a device as described above in an anchor 121 on a seabed with a mooring line 120 which allows the tube 100 to move in a circle on the surface around the anchor point 121, and to operate the apparatus in the longitudinal direction using the propulsion means 130, 132 in a circular motion around the anchor point 121
  • Figure 3 also illustrates the method.
  • the apparatus preferably has a so-called double protection, such as an extranet over both ends of the tube to protect against escapes.
  • the tube 100 can also be equipped with additional oxygen supplies, emergency oxygen so that oxygen from a bottle battery can be supplied through the outlet at the bottom of the tube in case the stream of clean, oxygenated water were to stop for some reason. If moving forward, emergency oxygen and natural flow ceases simultaneously, the apparatus may be towed after a workboat to ensure water flow through the tube 100

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Zoology (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Catching Or Destruction (AREA)

Abstract

L'invention concerne un appareil pour élever des organismes aquatiques, lequel dispositif se place dans l'eau pendant le fonctionnement. L'appareil comprend un tube étanche (100) qui permet un écoulement d'eau longitudinal par l'intérieur; et des moyens, comme des hélices actionnées électriquement, pour entraîner le tube (100) dans l'eau dans le sens longitudinal. Un filet à puces peut être fixé aux extrémités du tube afin d'empêcher certains parasites d'entrer dans le tube. Le tube (100) peut être ancré à un point de mouillage (121) sur un fond marin à l'aide d'une ligne de mouillage (120) permettant au tube (100) de se déplacer en cercles autour d'un axe vertical via le point d'ancrage (121), ce qui permet de distribuer des nutriments sur une plus grande surface et de contribuer à la protection de l'environnement au lieu de favoriser, par exemple, la croissance indésirable d'algues.
PCT/NO2014/000015 2013-02-08 2014-02-05 Enclos maritime tubulaire mobile WO2014123424A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK201470607A DK178450B1 (da) 2013-02-08 2014-10-02 Bevægeligt rørformet havbur

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20130221A NO335309B1 (no) 2013-02-08 2013-02-08 Anordning for oppdrett av vannlevende organismer
NO20130221 2013-02-08

Publications (1)

Publication Number Publication Date
WO2014123424A1 true WO2014123424A1 (fr) 2014-08-14

Family

ID=50272680

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2014/000015 WO2014123424A1 (fr) 2013-02-08 2014-02-05 Enclos maritime tubulaire mobile

Country Status (3)

Country Link
DK (1) DK178450B1 (fr)
NO (1) NO335309B1 (fr)
WO (1) WO2014123424A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200029536A1 (en) * 2018-07-24 2020-01-30 Running Tide Technologies, Inc. Systems and methods for the cultivation of aquatic animals

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20160297A1 (en) 2015-10-09 2017-01-09 Pure Atlantic As Offshore Fish Farming Unit
NO346923B1 (en) * 2021-04-21 2023-02-27 Leroey Seafood Group Asa "A semi-closed, floating fish farm

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001129A1 (fr) * 1978-12-06 1980-06-12 Feuga A Muller Enceinte souple pressurisee et immergee pour elevage de poissons en pleine eau
WO2003067971A1 (fr) * 2002-02-14 2003-08-21 Brimer As Dispositif de culture d'organismes marins, en particulier, de poissons
US20050034676A1 (en) * 2001-11-15 2005-02-17 Mark Taylor Raceway for cultivating aquatic organisms
DE102010032673A1 (de) * 2010-03-13 2011-09-15 Siegfried Beck System, Technologie, Funktion und Verfahren von mobilen und versenkbaren Fischkäfigen für das offene Meer

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8814040D0 (en) * 1988-06-14 1988-07-20 Wild Catch Ltd Fish framing

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1980001129A1 (fr) * 1978-12-06 1980-06-12 Feuga A Muller Enceinte souple pressurisee et immergee pour elevage de poissons en pleine eau
US20050034676A1 (en) * 2001-11-15 2005-02-17 Mark Taylor Raceway for cultivating aquatic organisms
WO2003067971A1 (fr) * 2002-02-14 2003-08-21 Brimer As Dispositif de culture d'organismes marins, en particulier, de poissons
DE102010032673A1 (de) * 2010-03-13 2011-09-15 Siegfried Beck System, Technologie, Funktion und Verfahren von mobilen und versenkbaren Fischkäfigen für das offene Meer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20200029536A1 (en) * 2018-07-24 2020-01-30 Running Tide Technologies, Inc. Systems and methods for the cultivation of aquatic animals
US10945417B2 (en) * 2018-07-24 2021-03-16 Running Tide Technologies, Inc. Systems and methods for the cultivation of aquatic animals
US11647735B2 (en) 2018-07-24 2023-05-16 Running Tide Technologies, Inc. System and methods for the cultivation of aquatic animals

Also Published As

Publication number Publication date
NO335309B1 (no) 2014-11-10
DK201470607A1 (da) 2014-10-02
NO20130221A1 (no) 2014-08-11
DK178450B1 (da) 2016-03-07

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