WO2011115616A2 - Technique et système d'élevage de crustacés et autres poissons - Google Patents

Technique et système d'élevage de crustacés et autres poissons Download PDF

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Publication number
WO2011115616A2
WO2011115616A2 PCT/US2010/027442 US2010027442W WO2011115616A2 WO 2011115616 A2 WO2011115616 A2 WO 2011115616A2 US 2010027442 W US2010027442 W US 2010027442W WO 2011115616 A2 WO2011115616 A2 WO 2011115616A2
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WO
WIPO (PCT)
Prior art keywords
water
column
top opening
tank
passageway
Prior art date
Application number
PCT/US2010/027442
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English (en)
Other versions
WO2011115616A3 (fr
Inventor
James E. Bradley
Jeremy L. Bradley
Original Assignee
Aqua Manna, Llc
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.)
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Publication date
Application filed by Aqua Manna, Llc filed Critical Aqua Manna, Llc
Priority to PCT/US2010/027442 priority Critical patent/WO2011115616A2/fr
Publication of WO2011115616A2 publication Critical patent/WO2011115616A2/fr
Publication of WO2011115616A3 publication Critical patent/WO2011115616A3/fr

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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
    • A01K63/042—Introducing gases into the water, e.g. aerators, air pumps

Definitions

  • RMAS recirculated marine aquaculture systems
  • These systems have many advantages over non-recirculating systems which typically require periodic water exchanges.
  • periodic water exchanges namely, additional water usage, waste material generation that may be adverse to the environment, and an increased cause of stress to the cultured aquatic species.
  • Water re-use in the RMAS minimizes any adverse environmental burden created by the aquaculture system since there is minimal net waste material generation, and what waste is generated is easily handled by local sewer systems, or can be used as fertilizer.
  • RMAS offer flexibility in location options including urban, rural, and inland, since they are not confined to coastal areas or open oceans. Unlike free-floating pens, process conditions can be better controlled within a RMAS. In addition, RMAS minimizes the stress caused to the cultured aquatic species by management of the waste material generation (carbon dioxide, protein, nitrates, nitrites, etc.) and preservation of the floe of beneficial bacteria without breaking the floe.
  • waste material generation carbon dioxide, protein, nitrates, nitrites, etc.
  • RMAS typically includes a container containing a large quantity of water in which the fish are raised, and a filtration system for cleaning the water in the container.
  • filtration systems typically include a particulate filter and a bio-filter.
  • the particulate filter is used to remove solid particulate materials, such as fish waste and uneaten food, from the water.
  • the bio-filter contains bacteria which removes ammonia and nitrates from the water, and also is used to oxygenate the water.
  • Various types of filters have been used as particulate filters in aquaculture, including rotating drum filters. The use of rotating drum filters in aquaculture, however, has been limited by their high cost, their need for frequent maintenance, and the difficulty in cleaning the filtering surface of the filtering media. The filtering surface must be continuously cleaned to prevent the filtering surface from being clogged by the particulate matter.
  • the cavitation of water permits the removal of at least one of biological byproducts such as protein and carbon dioxide from the water.
  • a plurality of microbubbles is generated to permit a larger interface between air and water.
  • Dissolved and suspended biological particulates adhere to the surface of the microbubbles and are then removed from the container.
  • the stand pipe can include one or more laterally directed openings positioned above the second propeller. These openings are where through the pumped water flows after cavitation. The openings are elevated above the upper surface of the body of water to allow the water to fall to the upper surface of the body of water, where the water mixes with air drawn into an air inlet of the water treatment unit for oxygenation of the water. Water is then returned to the container.
  • the body of water can be provided with a floe of beneficial bacteria to break down organic matter, e.g., wastes from the crustaceans or other fish, and convert ammonia into nitrites and nitrites into nitrates.
  • the floe is measured periodically with a measurement device suitable to measure settling solids, such as an Imhoff cone.
  • the RMAS system may also include a deflocculation tank. The body of water of the RMAS can be cycled through the deflocculation tank coupled to the body of water.
  • the second column has top and bottom openings with a
  • a RMAS includes the water treatment unit, the deflocculation tank, or various embodiments of both.
  • Other steps may include: activating the gas bubble source of the deflocculation tank; moving the treatable portion of water into the passageway of the first column from the top opening to the gap near the bottom opening of the second column; lifting the treatable portion of water through the top opening of the second column; and returning the treatable portion of water to the body of water within the container by movement of the treatable portion of water through the outlet of the deflocculation tank.
  • the flow rate of the treatable portion of water that is returned to the body of water within the container can be maintained between about 5 gpm to about 15 gpm, and the sufficient period of time to reduce the relative proportion of floe of beneficial bacteria can be between about 20 minutes to about 40 minutes.
  • the deflocculation tank can be used as needed or periodically, such as weekly, to reduce the relative proportion of floe of beneficial bacteria in the body of water to about 20 to 40 ppt.
  • FIG. 1A is a close-up view of an embodiment of propellers of a system impeller used with a water treatment unit.
  • FIG. 2 is an elevation view, partially in section of a portion of a water treatment unit.
  • FIG. 3 is an elevation view, partially in section of another portion of a water treatment unit.
  • FIG. 4 is a sectional view of another portion of a water treatment unit.
  • FIG. 5 is a schematic of a recirculated marine aquaculture system that includes a water treatment unit and a deflocculation tank.
  • FIG. 6 is a schematic sectional view of a deflocculation tank used with a recirculated marine aquaculture system tank.
  • the filtering wall 30 can be in the form of discrete replaceable panels or in the form of a continuous wall that completely surrounds and connects a perimetral edge 32 of the chamber floor 26 to a perimetral edge 34 of the chamber ceiling 28.
  • a gas bubble source 36 can be situated adjacent to a lower edge 38 of the filtering wall 30 to provide an upward sweeping flow of bubbles that can help maintain the outside of the filtering wall 30 free from litter.
  • the gas bubble source 36 can be supplied by any conventional source of compressed air.
  • the lower edge 38 of the filtering wall 30 can extend below the chamber floor 26 to provide a protected zone 40 under the chamber floor 26 for enhanced microbial activity to break down some of the waste products of any crustaceans or other aquatic species in the body of water 14.
  • An air inlet 54 is provided in an upper portion 56 of the second chamber.
  • the air inlet 54 can be in the form of a lateral slot 58 formed between a central opening 60 in the second chamber top 47 and a plate 62 situated immediately below the central opening 60, but in spaced relation from the second chamber top 47.
  • An outlet 64 can be provided in the second chamber upper portion 56 to allow for withdrawal of excess foam and air enriched in carbon dioxide from the second chamber 42.
  • the water treatment unit 12 also has a stand pipe 66 coupled between the first chamber 16 and the second chamber 42.
  • the stand pipe 66 has a lower end 68 that opens into the first chamber 16 and an upper opening 70 adjacent to the top 47 of the second chamber 42.
  • the propeller 80A can be then dimensioned and positioned such that the diameter formed by the tips of the blades is substantially less than the diameter of the stand pipe 66, shown as a radial distance 81.
  • This gap thus permits cavitation of the water passing therethrough, which allows for the generation of microbubbles, subsequent growth and collapse of the microbubbles.
  • Dissolved and suspended biological particulates adhere to the surface of the microbubbles and are then carried with the water through the outlet 72 and into the second chamber 42. The water and microbubbles then fall within the second chamber to interface with foam already present in the chamber.
  • the propeller 80 has a tip diameter at the tips of the blades of slightly less than 8 inches, and the propeller 80A has a tip diameter that is 20-30% (preferably about 25-27%) less than the inner diameter of the stand pipe 66.
  • the head within the second chamber 42 forces some of the water in the second chamber 42 out through the water outlets 48 in the lower portion 50 of the second chamber 42.
  • the water coming out the water outlets 48 can cause any desired water flow pattern within the fisheries tank 14.
  • An upward flow out of the adjustable pipes 52 can cause a toroidal flow of water within the body of water 14 around the water treatment unit 12, the flow of water being of a volume sufficient to provide a living environment for growing crustaceans or other fish within the body of water 14.
  • the first chamber 16 of the water treatment unit 12 is shown in section to reveal the stand 20 supporting the bottom surface 22 of floor 26.
  • a lower portion 84 of the stand pipe 66 can be seen to extend downward below the ceiling 28 of the first chamber 16 so that a lower end 68 of the stand pipe 66 rests on the floor 26 of the first chamber 16.
  • the portion 86 of the stand pipe 66 residing within the first chamber 16 includes a plurality of lateral intake openings 88 sized to permit an essentially un-restricted amount of water to flow from the first chamber 16 into the stand pipe 66.
  • a coupling 85 can be provided at the upper end 87 of the lower portion 84 of the stand pipe 66 to facilitate the assembly to additional elements of the water treatment unit 12.
  • a secondary screen can be provided immediately surrounding the stand pipe surface to trap organic debris in the first chamber 16.
  • a high surface area filler can be added to a lower portion of the first chamber 16 to facilitate the digestion of any trapped organic debris.
  • the base 44 of the second chamber 42 is shown to be coupled to the lower portion 84 of the stand pipe 66 spaced some distance above the ceiling 28 of the first chamber 16.
  • One or more flanges 90 can be cemented, bonded, or otherwise fixed to the stand pipe 66 and one or more fasteners 92 can penetrate the base 44 of the second chamber 42 and the flange 90 to secure the base 44 to the stand pipe 66.
  • the lower portion 84 of the stand pipe 66 and the base 44 of the second chamber 42 can be handled as a unit to permit easy assembly and disassembly of the water treatment unit 12.
  • the portion 86 of the stand pipe 66 can slide into and be lifted out of the opening 27 in the ceiling 28 of the first chamber 16 to permit easy assembly and disassembly of the unit 12.
  • a gasket or flange 29 can be situated on the stand pipe 66 to minimize or inhibit any inflow of water into the first chamber 16 at the junction of the ceiling 28 and stand pipe 66, thereby ensuring a proper filtering of the water through the filtering wall 30.
  • the pipes 52 coupled to the water outlets 48 in the base 44 of the second chamber 42 are shown to comprise a first pipe 92 and a second pipe 94.
  • the first pipe has a first end 96 cemented, bonded, or otherwise fixed to the base 44 to receive water from the outlet 48.
  • the second pipe 94 has a first end 98 coupled to the second end 100 of the first pipe 92, so that the second pipe 94 can be rotated to a desired position relative to the first pipe 92 whereby water exiting the second chamber 42 out through the second end 102 of the second pipe 94 can be variously directed to obtain desirable water current conditions within the body of water 14.
  • FIG. 3 A further sub-assembly of the water treatment unit 12 is shown in FIG. 3 that includes an upper portion 104 of the stand pipe 66, which is capped by plate 62.
  • the lower end 106 of the upper portion 104 is intended to be coupled to the coupling 85 at the upper end 87 of the lower portion 84 of the stand pipe 66 shown in FIG. 2.
  • the upper end 108 of the upper portion 104 can include a flange or tabs 110 that can be coupled to the plate 62 by means of fasteners 112. Additional fasteners 114 can be provided to define the size of the lateral slot 58 that creates the air inlet 54 to the second chamber 42 shown in FIG. 1.
  • Arcuate mounting blocks 116 can be provided to mount the motor 76 above the plate 62 by a defined spacing.
  • a coupling 118 can be provided to couple the motor 76 to a shaft 78.
  • a suitable bearing 120 can be mounted to the plate 62 to receive the shaft 78.
  • the openings 72 are seen to comprise three rows of openings that are
  • FIG. 4 a further sub-assembly is shown that consists generally of the sidewall 46 and top 47 of the second chamber 42.
  • the lower edge 122 of the sidewall 46 is intended to fit reasonably snuggly around the perimeter of the base 44 of the first sub-assembly so that water outflow from the second chamber is essentially entirely through the adjustable pipes 52 seen in FIG. 2.
  • An inner wall 124 can be provided that depends from the top 47 generally in a uniformly spaced relation from the sidewall 46. A suitable space between the inner wall 124 and sidewall 46 has been found to be about 5 to 10 cm.
  • the lower edge of the inner wall 124 can be located below the lower edge of the depending flange 63, and in a preferred embodiment can be located 1 to 5 cm below the water surface 82 within the second chamber 42.
  • a heat source 140 may also be associated with the tank in order to heat and maintain the body of water of the tank to a desirable level.
  • a pump source 141 e.g. the impeller 74, is provided to lift the water from the tank through the water treatment unit.
  • a foam fractionation source 142 is provided, e.g., the combination of the cavitational propeller 80A and the bubbles and foam created by the drop of water from the openings 72 elevated from the water level.
  • the carbon dioxide and byproducts in the form of foam can be removed via the outlet 64 that can be aided by a suitable vacuum pump.
  • An aerator 143 is also provided, e.g., the air entrained through the air inlet 54 during the drop of the water from the openings 72.
  • a flow generator 144 is provided, e.g., from the outflow from the conduits 52 of the water treatment unit 12 to develop a desired water flow pattern within the body of water.
  • the deflocculation tank 150 is configured to reduce the relative proportions of beneficial bacteria in the water, while preserving the floe of beneficial bacteria (i.e., avoiding "breaking" the floe).
  • Crustaceans or other fish produce wastes that break down to create ammonia in water, which is highly toxic to the crustaceans or other fish.
  • Beneficial bacteria can be provided in water to convert ammonia into nitrites and nitrites into nitrates, as well as breaking down organic matter (waste feed and crustacean or fish waste).
  • one type of bacteria that make of the floe is heterotrophic bacteria that build a colony around some organic or inorganic particle and then breakdown organic matter.
  • a second type of bacteria that make of the floe is nitrifying bacteria that also grow on these colonies.
  • the nitrifying bacteria can include nitrosomonas bacteria one the oxygenated areas of the floe that break down the ammonia into less toxic nitrites, while consuming oxygen that is within the water, and nitrobacter bacteria on the anoxic portions of the floe that break down the nitrites into nitrates, which also consume oxygen in the water.
  • the floe of beneficial bacteria may continue to thrive and grow until reaching undesirable relative proportions, such as, e.g., 20 - 40 parts-per-thousand (ppt), in which case the relative proportions of beneficial bacteria in the water may be removed preferably without breaking the floe.
  • the floe levels may be measured periodically, such as daily, by use of a device configured to measure settling solids, such as a one-liter Imhoff cone, allowing a period of time, e.g., 15 minutes, of settling before measuring the level of settled solids. Periodic measurements of nitrite levels
  • FIG. 6 depicts an exemplary way to couple the tank 14 to a preferred embodiment of the deflocculation tank 150.
  • the tank 14 includes fluid outlet 151 , such as a tap or spigot, coupled through the wall of the tank 14 for permitting the tank water to drain out.
  • a conduit 152 such as a hose, is coupled between the tank fluid outlet 151 and a fluid inlet 154 in the
  • a first column 56 is cemented, bonded, or otherwise fixed to the bottom of the cavity 158 of the deflocculation tank and extending upright.
  • the bottom 160 of the first column and the bottom 153 of the deflocculation tank 150 are effectively sealed to inhibit water from entering from the bottom. This causes the water to circulate in a flow pattern around the first column 156.
  • the water preferably circulates at a desired flow rate for a desired period of time for treatment before entering from the top 161 of the first column in the spaced defined between the first column 156 and a second column 162.
  • the second column 162 is inserted through the passageway of the first column 156.
  • the first column 156 is 4-inch PVC pipe and the second column 162 is 2-inch PVC pipe, although it can be
  • the second column 162 extends toward the bottom 160 of the first column 162 but not all the way in order to allow enough space for water to enter therethrough.
  • the second column 162 also extends past the top 161 of the first column 156 and preferably mounts to the top 155 of the deflocculation tank 150, shown cemented, bonded, or otherwise fixed at the center of the deflocculation tank.
  • the top 164 of the second column 162 has a fluid outlet 166 where water exits the deflocculation tank 150 to preferably enter back into the tank 14 via a return conduit 167.
  • a fluid flow meter (not shown) may be associated with the return conduit 167 in order to measure the flow rate of return water through the return conduit.
  • Another port 168 may be associated with the top 164 of the second column 162 for receiving an air conduit 170, such as air tubing, having an outlet 172 that is placed within the first and second columns.
  • the air conduit 170 is preferably attached to a source for compressed air 174.
  • a gas bubble source 176 may also be located along the bottom 160 of the first column 156; and preferably in alignment with the passageway 163 of the second column 162.
  • the gas bubble source 176 can be an airstone or air diffuser typically used with water and fitted with an air fitting for coupling to the outlet 172 of the air conduit 170.
  • the gas bubble source 176 is configured to diffuse oxygen or air into the tank for oxygenation of the water and to lift the water past the water level 178 into the fluid outlet 166.
  • the pumping action to lift the water above the water surface level in the deflocculation tank 150 should be sufficient to permit the treated water to exit the fluid outlet 166 at a desired flow rate.
  • the return flow rate can be in the range of about 1 gallons-per-minute (gpm) to about 30 gpm; preferably 5 - 20 gpm; and most preferably 15 gpm.
  • gpm gallons-per-minute
  • the pressure from the air pump can be increased or decreased accordingly to effectuate the desired flow rate, e.g., the air pressure can be in a range of about 3 pounds-per-square inch (psi) to about 6 psi.
  • the lower flow rates can enhance the preservation of the floe of bacteria.
  • too low of a flow rate does not sufficiently reduce the relative proportion of floe of bacteria, which leads to more treatment, and too high of a flow rate breaks the floe of bacteria.
  • the relative proportion of the beneficial bacteria can be reduced to sufficient levels, e.g., about 20 - 40 ppt. This can avoid the conventional matter of changing the water completely by draining the "old" water from the tank 14 and filling the tank with "new" water, which can break the existing bacteria floes.
  • the retention time and the flow rate within the deflocculation tank depends on the relative proportion of the floe of bacteria, and one skilled in the art can determine the time and return flow rate necessary to reduce the relative proportion of the floe to suitable levels for the size of the tank and the deflocculation tank.
  • the water quality of the body of water within the tank is regulated to provide an aquatic environment for optimal growth of the crustaceans or fish.
  • Various aspects of the quality of water can be sensed and regulated, including: temperature, oxygen, carbon dioxide, ammonia, nitrites, nitrates, salinity, alkalinity, pH, bacteria proportions, or the like. Therefore, various means for sampling and sensing the various aspects of the body of water can be provided as appreciated by those skilled in art.
  • the temperature of the water of the tank 14 may be any temperature of the water of the tank 14.
  • the water may be heated by a heat source in the form of an external or an internal heat source.
  • the external heat source can include a convection heat fan unit that applies heated air to the surface of the tank
  • the internal heat source can include an electric heater or pipes carrying a heated fluid media from an external water heater within the body of water.
  • the heat source 140 can comprise a water pipe configuration (not shown), such as about 300 feet of pipe in a coiled configuration, located within the first chamber 16 of the water treatment unit such that the water is heated while being pumped through the water treatment unit 12. The pipe configuration is then fluidly coupled to an external water heater (not shown).
  • a thermostat can be associated with the body of water and coupled to the water heater so that the temperature of the water can be controlled by cycling the heater on-off or proportionally changing the temperature of the heater to maintain the temperature within acceptable levels.
  • heat generated by operation of the impeller 74 may by sufficient as a primary source of heat or at least sufficient as a
  • the salinity of the water can also be regulated such that the salt is between 5 ppt to about 35 ppt, preferably from 7 ppt to 25 ppt, and most preferably at 10 ppt, striking a balance between having an acceptable salinity for optimal growth, while minimizing operation costs of maintaining a higher salinity.
  • Additional salt may be added to the water of the tank 14 to increase the salinity; for example, sea salt mix available from Tropic Marin.
  • Alkalinity of the water of the tank 14 may also be regulated to maintain at least 150 parts-per-million (ppm).
  • the pH of the water can be between about 7 - 9, and preferably about 7 - 7.5.
  • a sufficient amount of carbonates and/or bicarbonates such as sodium bicarbonate, can be used to increase the alkalinity of the water to levels above 150 ppm or reduce the pH to acceptable levels.
  • the nitrite levels can be maintained less than 2 ppm, and the nitrate levels can be maintained as high as about 10 ppm to about 20 ppm and as low as 0.1 ppm and preferably maintained at about 0.5 ppm.
  • Table 1 The various aspects of the quality of water are summarized in Table 1.
  • the outlet 64 can be aided by a suitable vacuum pump facilitating the withdrawal of the foam and carbon dioxide enriched air through the outlet 64.
  • the outlet 64 can also include a downwardly extending water drain line 128 permitting the return of some of the water separated with the foam to the fisheries tank or other body of water 14.
  • the water drain line 128 preferably extends downward so that a lower end 130 of the water drain line 128 is at least at or below the water surface 18 to ensure an adequate vacuum to facilitate withdrawal of the foam and carbon dioxide enriched air from the second chamber 56 through the outlet 64.
  • Water within the deflocculation tank 150 should cycle in a flow pattern, such as toroidal pattern, around the first column 156 for a predetermined amount of time and flow rate before entering the second column. Water will also enter into and fill the passageway 163 of the second column 162 as the water fills the first column 156.
  • the air conduit 170 coupled to the compressed air source 174 and the gas bubble source 176, the air source 174 is turned on and the air pressure is adjusted to operate the gas bubble source 176 such that the desired flow rate of water exiting the fluid outlet 166 of the deflocculation tank 150 is obtained, e.g., 5 - 15 gpm.
  • the water is then returned to the tank 14. This operation can continue to run until the bacteria thins out to an acceptable relative proportion, such as 20 - 40 ppt, without breaking the floe.
  • the deflocculation tank 150 may also be movable so that it can be fluidly coupled to other tanks.
  • Water is added to an 18-foot diameter tank having 52-inch sidewalls to substantially fill the tank to about 5700 - 7700 gallons.
  • the water temperature is heated and maintained at about 85°F.
  • Sea salt is added to the water in the tank to increase the salinity to about 10 ppt.
  • the water treatment unit is then activated to begin cycling and moving the water in a toroidal pattern.
  • the water treatment unit is operated for a period of time sufficient to normalize the environment of the tank water before supplying the crustaceans or other fish.
  • the water treatment unit not only sufficiently aerates the tank water, e.g., 1.1 pounds of oxygen per hour, but also strips carbon dioxide and biological byproducts from the tank water and removes them from the system.
  • a sufficient amount of ammonia, nitrites and/or nitrates may be added to the tank water. Samples of the tank water are taken to measure various aspects of the quality of water to ensure that the tank water is ideal for growing crustaceans or other fish.
  • samples of tank water are taken periodically, such as daily, to measure the relative proportions of ammonia, nitrites, and/or nitrates. As described previously, the relative proportions of these are maintained within their ranges. Samples of tank water can also be taken to measure the relative proportions of oxygen, carbon dioxide, salinity, and alkalinity or pH in order for them to be maintained within their ranges. It is preferable that the water quality is maintained within their preferred ranges. It can be appreciated that the water quality can be monitored with equipment and processes suitable for such measurements and adjusted as known in the art.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Animal Husbandry (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Biological Treatment Of Waste Water (AREA)
  • Physical Water Treatments (AREA)

Abstract

Système et technique d'aquaculture marine à recirculation pour l'élevage de crustacés et autres poissons dans une masse d'eau. Pour traiter cette masse d'eau, on élimine le dioxyde de carbone et les sous-produits biologiques et l'on oxygène l'eau. Une unité de traitement (12) assure le traitement de l'eau et brasse ladite masse d'eau. Cette unité (12) peut être agencée pour créer un phénomène de cavitation dans l'eau qui facilite l'extraction du dioxyde de carbone et des sous-produits biologiques. L'eau peut circuler à travers un réservoir de défloculation (150) qui ramène le floc de bactéries dans la masse d'eau à un niveau acceptable pour la croissance optimale des crustacés et autres poissons. La mise en œuvre de ce système et du réservoir de défloculation offre l'avantage de réduire notablement les taux d'échange d'eau, voire l'effluent aqueux, tout en maintenant une qualité de l'eau acceptable pour l'élevage de crustacés et autres poissons.
PCT/US2010/027442 2010-03-16 2010-03-16 Technique et système d'élevage de crustacés et autres poissons WO2011115616A2 (fr)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102870736A (zh) * 2012-10-17 2013-01-16 中国水产科学研究院渔业机械仪器研究所 一种用于去除高密度养殖水体中co2的方法及装置
US20200068858A1 (en) * 2018-08-06 2020-03-05 Northeastern University Robotic aquaculture system and methods
CN113498755A (zh) * 2021-08-03 2021-10-15 浙江省海洋水产研究所 柳珊瑚人工繁育用增氧装置及增氧方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7682504B2 (en) * 2007-03-01 2010-03-23 Aqua Manna, Llc System for growing crustaceans and other fish
KR101179313B1 (ko) * 2007-03-30 2012-09-03 이세한 포기유니트 및 그것을 구비한 포기장치와 포기방법

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102870736A (zh) * 2012-10-17 2013-01-16 中国水产科学研究院渔业机械仪器研究所 一种用于去除高密度养殖水体中co2的方法及装置
US20200068858A1 (en) * 2018-08-06 2020-03-05 Northeastern University Robotic aquaculture system and methods
US11766030B2 (en) * 2018-08-06 2023-09-26 Northeastern University Robotic aquaculture system and methods
CN113498755A (zh) * 2021-08-03 2021-10-15 浙江省海洋水产研究所 柳珊瑚人工繁育用增氧装置及增氧方法
CN113498755B (zh) * 2021-08-03 2022-05-10 浙江省海洋水产研究所 柳珊瑚人工繁育用增氧装置及增氧方法

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